Document and Entity Information (USD $) In Billions, except Share data, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Aug. 13, 2015	Jan. 02, 2015
Document Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jul. 03, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Entity Registrant Name	WESTERN DIGITAL CORP
Entity Central Index Key	0000106040
Current Fiscal Year End Date	--07-03
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		230,402,975
Entity Public Float			$ 23

Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014
Current assets:
Cash and cash equivalents	$ 5,024	$ 4,804
Short-term investments	262	284
Accounts receivable, net	1,532	1,989
Inventories	1,368	1,226
Other current assets	331	417
Total current assets	8,517	8,720
Property, plant and equipment, net	2,965	3,293
Goodwill	2,766	2,559
Other intangible assets, net	332	454
Other non-current assets	601	473
Total assets	15,181	15,499
Current liabilities:
Accounts payable	1,881	1,971
Accrued arbitration award	0	758
Accrued expenses	470	412
Accrued compensation	330	460
Accrued warranty	150	119
Revolving credit facility	255	0
Current portion of long-term debt	156	125
Total current liabilities	3,242	3,845
Long-term debt	2,156	2,313
Other liabilities	564	499
Total liabilities	5,962	6,657
Commitments and contingencies (Notes 4 and 5)
Shareholders' equity:
Preferred stock, $.01 par value; authorized - 5 shares; issued and outstanding - none	0	0
Common stock, $.01 par value; authorized — 450 shares; issued — 261 shares; outstanding — 230 and 234 shares, respectively	3	3
Additional paid-in capital	2,428	2,331
Accumulated other comprehensive loss	(20)	12
Retained earnings	9,107	8,066
Treasury stock — common shares at cost; 31 shares and 27 shares, respectively	(2,299)	(1,570)
Total shareholders' equity	9,219	8,842
Total liabilities and shareholders' equity	$ 15,181	$ 15,499

Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, authorized	5	5
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	450	450
Common stock, issued	261	261
Common stock, outstanding	230	234
Treasury stock, shares	31	27

Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Income Statement [Abstract]
Revenue, net	$ 14,572	$ 15,130	$ 15,351
Cost of revenue	10,351	10,770	10,988
Gross profit	4,221	4,360	4,363
Operating expenses:
Research and development	1,646	1,661	1,572
Selling, general and administrative	773	761	706
Charges related to arbitration award	15	52	681
Employee termination, asset impairment and other charges	176	95	138
Total operating expenses	2,610	2,569	3,097
Operating income	1,611	1,791	1,266
Other income (expense):
Interest and other income	15	17	11
Interest and other expense	(49)	(56)	(55)
Total other expense, net	(34)	(39)	(44)
Income before income taxes	1,577	1,752	1,222
Income tax provision	112	135	242
Net income	$ 1,465	$ 1,617	$ 980
Income per common share:
Basic (in dollars per share)	$ 6.31	$ 6.88	$ 4.07
Diluted (in dollars per share)	$ 6.18	$ 6.68	$ 3.98
Weighted average shares outstanding:
Basic (in shares)	232	235	241
Diluted (in shares)	237	242	246

Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Statement Of Other Comprehensive Income Loss [Abstract]
Net income	$ 1,465	$ 1,617	$ 980
Other comprehensive income (loss), net of tax:
Actuarial pension gains (losses)	(2)	(4)	14
Foreign currency translation gains (losses)	0	0	(4)
Net unrealized gain (loss) on foreign exchange contracts	(30)	51	(30)
Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss)	(32)	47	(20)
Total comprehensive income	$ 1,433	$ 1,664	$ 960

Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Cash flows from operating activities
Net income	$ 1,465	$ 1,617	$ 980
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	1,114	1,244	1,233
Stock-based compensation	162	156	137
Deferred income taxes	28	(13)	35
Gain On Insurance Recovery	(37)	(65)	0
Loss on disposal of assets	17	40	0
Non-cash portion of employee termination, asset impairment and other charges	86	62	19
Other non-cash operating activities, net	0	9	0
Changes in:
Accounts receivable, net	458	(175)	584
Inventories	(143)	0	22
Accounts payable	(148)	(32)	(511)
Accrued arbitration award	(758)	52	681
Accrued expenses	35	(56)	(122)
Accrued compensation	(134)	7	77
Other assets and liabilities	97	(30)	(16)
Net cash provided by operating activities	2,242	2,816	3,119
Cash flows from investing activities
Purchases of property, plant and equipment	(612)	(628)	(952)
Acquisitions, net of cash acquired	(257)	(823)	(1)
Purchase of investments	(857)	(561)	(17)
Proceeds from sales and maturities of investments	768	72	0
Other investing activities, net	5	4	0
Net cash used in investing activities	(953)	(1,936)	(970)
Cash flows from financing activities
Issuance of stock under employee stock plans	212	187	185
Taxes paid on vested stock awards under employee stock plans	(64)	(32)	(25)
Excess tax benefits from employee stock plans	19	60	45
Repurchases of common stock	(970)	(816)	(842)
Dividends paid to shareholders	(396)	(259)	(181)
Repayment of debt	(125)	(2,517)	(230)
Proceeds from debt, net of issuance costs	255	2,992	0
Net cash provided by (used in) financing activities	(1,069)	(385)	(1,048)
Net increase in cash and cash equivalents	220	495	1,101
Cash and cash equivalents, beginning of year	4,804	4,309	3,208
Cash and cash equivalents, end of year	5,024	4,804	4,309
Supplemental disclosure of cash flow information:
Cash paid for income taxes	47	141	146
Cash paid for interest	45	46	49
Supplemental disclosure of non-cash financing activities:
Accrual of cash dividend declared	$ 116	$ 94	$ 59

Consolidated Statements of Shareholders' Equity (USD $) In Millions	Total	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]
Beginning Balance at Jun. 29, 2012	$ 7,669	$ 3	$ (554)	$ 2,223	$ (15)	$ 6,012
Beginning Balance, Shares at Jun. 29, 2012		261	15
Employee stock plans	160		384	(224)
Employee stock plans, Shares			10
Stock based compensation	141			141
Increase in excess tax benefits from employee stock plans	45			45
Repurchase of common stock	(842)		(842)
Repurchase of common stock, shares			(19)
Dividends to shareholders	(240)			3		(243)
Net income	980					980
Actuarial pension gains (losses)	14				14
Foreign currency translation gains (losses)	(4)				(4)
Net unrealized gain (loss) on foreign exchange contracts	(30)				(30)
Ending Balance at Jun. 28, 2013	7,893	3	(1,012)	2,188	(35)	6,749
Ending Balance, Shares at Jun. 28, 2013		261	24
Employee stock plans	155		258	(103)
Employee stock plans, Shares			7
Stock based compensation	156			156
Stock awards assumed in acquisition	25			25
Increase in excess tax benefits from employee stock plans	60			60
Repurchase of common stock	(816)		(816)
Repurchase of common stock, shares			(10)
Dividends to shareholders	(295)			5		(300)
Net income	1,617					1,617
Actuarial pension gains (losses)	(4)				(4)
Foreign currency translation gains (losses)	0
Net unrealized gain (loss) on foreign exchange contracts	51				51
Ending Balance at Jun. 27, 2014	8,842	3	(1,570)	2,331	12	8,066
Ending Balance, Shares at Jun. 27, 2014		261	27
Employee stock plans	148		241	(93)
Employee stock plans, Shares			6
Stock based compensation	162			162
Stock awards assumed in acquisition	3			3
Increase in excess tax benefits from employee stock plans	19			19
Repurchase of common stock	(970)		(970)
Repurchase of common stock, shares			(10)
Dividends to shareholders	(418)			6		(424)
Net income	1,465					1,465
Actuarial pension gains (losses)	(2)				(2)
Foreign currency translation gains (losses)	0
Net unrealized gain (loss) on foreign exchange contracts	(30)				(30)
Ending Balance at Jul. 03, 2015	$ 9,219	$ 3	$ (2,299)	$ 2,428	$ (20)	$ 9,107
Ending Balance, Shares at Jul. 03, 2015		261	31

Organization and Summary of Significant Accounting Policies

12 Months Ended

Jul. 03, 2015

Accounting Policies [Abstract]

Organization and Summary of Significant Accounting Policies

Note 1. Organization and Summary of Significant Accounting Policies

Western Digital Corporation (the “Company” or “Western Digital”) is a leading developer, manufacturer and provider of data storage solutions that enable consumers, businesses, governments and other organizations to create, manage, experience and preserve digital content. The Company's product portfolio includes hard disk drives (“HDDs”), solid-state drives ("SSDs"), direct attached storage solutions, personal cloud network attached storage solutions, and public and private cloud data center storage solutions. HDDs are the Company's principal products and are today’s primary storage medium for the vast majority of digital content, with the use of solid-state storage products growing rapidly. The Company's products are marketed under the HGST, WD and G-Technology brand names.

The Company has prepared its consolidated financial statements in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) and has adopted accounting policies and practices which are generally accepted in the industry in which it operates. The Company’s significant accounting policies are summarized below.

Fiscal Year

The Company has a 53 or 52-week fiscal year. The 2015 fiscal year ended on July 3, 2015 and consisted of 53 weeks. The 2014 and 2013 fiscal years ended on June 27, 2014 and June 28, 2013, respectively, and both consisted of 52 weeks.

Basis of Presentation

The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation. In fiscal 2015, 2014, and 2013, the accounts for all foreign subsidiaries have been remeasured using the U.S. dollar as the functional currency. Gains or losses resulting from remeasurement of these accounts from local currencies into U.S. dollars were immaterial to the consolidated financial statements.

The Company acquired Amplidata NV ("Amplidata") on March 9, 2015, Virident Systems, Inc. ("Virident") on October 17, 2013, and sTec, Inc. (“sTec”) on September 12, 2013. In connection with the acquisitions, Amplidata, Virident, and sTec became indirect wholly-owned subsidiaries of the Company. The results of operations of Amplidata, Virident, and sTec since the respective dates of acquisition are included in the consolidated financial statements.

Cash and Cash Equivalents

The Company’s cash equivalents represent highly liquid investments in money market funds, which are invested in U.S. Treasury securities and U.S. Government agency securities as well as direct investments in bank acceptances with original maturities when purchased of three months or less. Cash equivalents are carried at cost, which approximates fair value.

Investments

The Company's investments in U.S. Treasury securities, U.S. Government agency securities, commercial paper and certificates of deposit with original maturities at purchase of more than three months. These investments are classified as available-for-sale securities and included within short-term investments and other non-current assets in the consolidated balance sheets. Available-for-sale securities are stated at fair value with unrealized gains and losses included in accumulated other comprehensive income (loss), which is a component of shareholders' equity. Gains and losses on available-for-sale securities are recorded based on the specific identification method. The Company evaluates the available-for sale securities in an unrealized loss position for other-than-temporary impairment. The amortized cost of available-for-sale securities is adjusted for amortization of premiums and accretion of discounts to maturity. Such amortization and accretion are included in total other expense, net in the consolidated statements of income. In addition, realized gains and losses are included in total other expense, net in the consolidated statements of income.

In addition, the Company enters into certain strategic investments for the promotion of business and strategic objectives. These strategic investments are recorded at cost within other non-current assets in the consolidated balance sheets and were not material to the consolidated financial statements as of July 3, 2015. They are also periodically analyzed to determine whether or not there are indicators of impairment.

Fair Value of Financial Instruments

The carrying amounts of cash equivalents, accounts receivable, investments, accounts payable and accrued expenses approximate fair value for all periods presented because of the short-term maturity of these assets and liabilities or, in the case of investments, these are recorded using appropriate market information. The carrying amount of debt approximates fair value because of its variable interest rate.

Concentration of Credit Risk

The Company sells its products to computer manufacturers, resellers and retailers throughout the world. The Company performs ongoing credit evaluations of its customers’ financial condition and generally requires no collateral. The Company maintains allowances for potential credit losses, and such losses have historically been within management’s expectations. At any given point in time, the total amount outstanding from any one of a number of its customers may be individually significant to the Company’s financial results. At July 3, 2015 and June 27, 2014, the Company had two customers that accounted for 30% and 29%, respectively, of the Company's net accounts receivable. At July 3, 2015 and June 27, 2014, the Company had reserves for potential credit losses of $7 million and $11 million, respectively, and net accounts receivable of $1.5 billion and $2.0 billion, respectively.

The Company also has cash equivalent and investment policies that limit the amount of credit exposure to any one financial institution or investment instrument and requires that investments be made only with financial institutions or in investment instruments evaluated as highly credit-worthy.

Inventories

The Company values inventories at the lower of cost (first-in, first out and weighted average methods) or net realizable value. The first-in, first-out (“FIFO”) method is used to value the cost of the majority of the Company’s inventories, while the weighted-average method is used to value precious metal inventories. Weighted-average cost is calculated based upon the cost of precious metals at the time they are received by the Company. The Company has determined that it is not practicable to assign specific costs to individual units of precious metals and, as such, precious metals are relieved from inventory based on the weighted-average cost of the inventory at the time the inventory is used in production. The weighted average method of valuing precious metals does not materially differ from the FIFO method. As of July 3, 2015 and June 27, 2014, 96% and 92%, respectively, of the inventory was valued using the FIFO method with the remainder valued using the weighted average method. Inventory write-downs are recorded for the valuation of inventory at the lower of cost or net realizable value by analyzing market conditions and estimates of future sales prices as compared to inventory costs and inventory balances.

The Company evaluates inventory balances for excess quantities and obsolescence on a regular basis by analyzing estimated demand, inventory on hand, sales levels and other information, and reduces inventory balances to net realizable value for excess and obsolete inventory based on this analysis. Unanticipated changes in technology or customer demand could result in a decrease in demand for one or more of the Company’s products, which may require a write down of inventory that could materially affect operating results.

Property, Plant and Equipment

The cost of property, plant and equipment is depreciated over the estimated useful lives of the respective assets. The Company’s buildings are depreciated over periods ranging from fifteen to thirty years. The majority of the Company’s equipment is depreciated over periods of two to seven years. Depreciation is computed on a straight-line basis. Leasehold improvements are amortized over the lesser of the estimated useful lives of the assets or the related lease terms.

Goodwill and Other Long-Lived Assets

The fair value of assets acquired and liabilities assumed in a business acquisition are recognized at the acquisition date, with amounts exceeding the fair values being recognized as goodwill. Goodwill is not amortized. Instead, it is tested for impairment on an annual basis or more frequently whenever events or changes in circumstances indicate that goodwill may be impaired. The Company performs its annual impairment test as of the first day of its fiscal fourth quarter. The Company either uses qualitative factors to determine whether goodwill is more likely than not impaired or performs a two-step approach to quantify impairment. If the Company concludes from the qualitative assessment that goodwill is more likely than not impaired, it is required to follow a two-step approach to quantify the impairment. The Company is required to use judgment when applying the goodwill impairment test, including the identification of reporting units, assignment of assets and liabilities to reporting units, assignment of goodwill to reporting units, and determination of the fair value of each reporting unit. In addition, the estimates used to determine the fair value of each reporting unit may change based on results of operations, macroeconomic conditions or other factors. Changes in these estimates could materially affect the Company’s assessment of the fair value and goodwill impairment for each reporting unit. The Company did not record any impairment of goodwill during 2015, 2014, or 2013.

Other intangible assets consist primarily of technology acquired in business combinations and in-process research and development. In-process research and development is not amortized until the point at which it reaches technological feasibility. Instead, it is instead tested for impairment on an annual basis or more frequently whenever events or changes in circumstances indicate that it may be impaired. Acquired intangibles are amortized on a straight-line basis over their respective estimated useful lives. Long-lived assets are tested for recoverability whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. If impairment is indicated, the impairment is measured as the amount by which the carrying amount of the assets exceeds the fair value of the assets. The Company recorded impairments to certain long-lived assets in 2015, 2014 and 2013. See Notes 13 and 17 below.

Revenue and Accounts Receivable

Revenue is recognized when the title and risk of loss have passed to the customer, there is persuasive evidence of an arrangement, delivery has occurred, or services have been rendered, the sales price is fixed or determinable and collectability is reasonably assured. The Company establishes provisions against revenue and cost of revenue for estimated sales returns in the same period that the related revenue is recognized based on existing product return notifications. If actual sales returns exceed expectations, an increase in the sales return accrual would be required, which could materially affect operating results.

In accordance with standard industry practice, the Company provides distributors and retailers (collectively referred to as “resellers”) with limited price protection for inventories held by resellers at the time of published list price reductions, and the Company provides resellers and original equipment manufacturers ("OEMs") with other sales incentive programs. At the time the Company recognizes revenue to resellers and OEMs, a reduction of revenue is recorded for estimated price protection until the resellers sell such inventory to their customers and the Company also records a reduction of revenue for the other programs in effect. The Company bases these adjustments on several factors including anticipated price decreases during the reseller holding period, reseller’s sell-through and inventory levels, estimated amounts to be reimbursed to qualifying customers, historical pricing information and customer claim processing. If customer demand for the Company's products or market conditions differ from the Company’s expectations, the Company’s operating results could be materially affected. The Company also has programs under which it reimburses qualified distributors and retailers for certain marketing expenditures, which are recorded as a reduction of revenue. Customer sales incentive and marketing programs are recorded as a reduction of revenue.

The Company records an allowance for doubtful accounts by analyzing specific customer accounts and assessing the risk of loss based on insolvency, disputes or other collection issues. In addition, the Company routinely analyzes the different receivable aging categories and establishes reserves based on a combination of past due receivables and expected future losses based primarily on its historical levels of bad debt losses. If the financial condition of a significant customer deteriorates resulting in its inability to pay its accounts when due, or if the Company’s overall loss history changes significantly, an adjustment in the Company’s allowance for doubtful accounts would be required, which could materially affect operating results.

From time to time, in connection with a factoring agreement, the Company sells trade accounts receivable without recourse to a third party purchaser in exchange for cash. The Company sold trade accounts receivable and received cash proceeds of $269 million, $187 million and $148 million during 2015, 2014 and 2013, respectively. The discounts on the sales of trade accounts receivables were not material and were recorded within interest and other expense in the consolidated statements of income.

Warranty

The Company records an accrual for estimated warranty costs when revenue is recognized. The Company generally warrants its products for a period of one to five years. The warranty provision considers estimated product failure rates and trends, estimated replacement costs, estimated repair costs which include scrap costs, and estimated costs for customer compensatory claims related to product quality issues, if any. A statistical warranty tracking model is used to help prepare estimates and assist the Company in exercising judgment in determining the underlying estimates. The statistical tracking model captures specific detail on hard drive reliability, such as factory test data, historical field return rates, and costs to repair by product type. Management’s judgment is subject to a greater degree of subjectivity with respect to newly introduced products because of limited field experience with those products upon which to base warranty estimates. Management reviews the warranty accrual quarterly for products shipped in prior periods and which are still under warranty. Any changes in the estimates underlying the accrual may result in adjustments that impact current period gross profit and income. Such changes are generally a result of differences between forecasted and actual return rate experience and costs to repair. If actual product return trends, costs to repair returned products or costs of customer compensatory claims differ significantly from estimates, future results of operations could be materially affected.

Litigation and Other Contingencies

When the Company becomes aware of a claim or potential claim, the Company assesses the likelihood of any loss or exposure. The Company discloses information regarding each material claim where the likelihood of a loss contingency is probable or reasonably possible. If a loss contingency is probable and the amount of the loss can be reasonably estimated, the Company records an accrual for the loss. In such cases, there may be an exposure to potential loss in excess of the amount accrued. Where a loss is not probable but is reasonably possible or where a loss in excess of the amount accrued is reasonably possible, the Company discloses an estimate of the amount of the loss or range of possible losses for the claim if a reasonable estimate can be made, unless the amount of such reasonably possible losses is not material to the Company’s financial position, results of operations or cash flows. The ability to predict the ultimate outcome of such matters involves judgments, estimates and inherent uncertainties. The actual outcome of such matters could differ materially from management’s estimates. See Note 5 below.

Advertising Expense

Advertising costs are expensed as incurred. Selling, general and administrative expenses of the Company included advertising costs of $71 million, $60 million and $61 million in 2015, 2014 and 2013, respectively.

Income Taxes

The Company accounts for income taxes under the asset and liability method, which provides that deferred tax assets and liabilities be recognized for temporary differences between the financial reporting basis and the tax basis of assets and liabilities and expected benefits of utilizing net operating loss (“NOL”) and tax credit carryforwards. The Company records a valuation allowance when it is more likely than not that the deferred tax assets will not be realized. Each period, the Company evaluates the need for a valuation allowance for its deferred tax assets and adjusts the valuation allowance so that the Company records net deferred tax assets only to the extent that it has concluded it is more likely than not that these deferred tax assets will be realized.

The Company recognizes liabilities for uncertain tax positions based on a two-step process. To the extent a tax position does not meet a more-likely-than-not level of certainty, no benefit is recognized in the financial statements. If a position meets the more-likely-than-not level of certainty, it is recognized in the financial statements at the largest amount that has a greater than 50% likelihood of being realized upon ultimate settlement. Interest and penalties related to unrecognized tax benefits are recognized in liabilities recorded for uncertain tax positions and are recorded in the provision for income taxes. The actual liability for unrealized tax benefits in any such contingency may be materially different from the Company’s estimates, which could result in the need to record additional liabilities for unrecognized tax benefits or potentially adjust previously-recorded liabilities for unrealized tax benefits, and may materially affect the Company’s operating results.

Income per Common Share

The Company computes basic income per common share using net income and the weighted average number of common shares outstanding during the period. Diluted income per common share is computed using net income and the weighted average number of common shares and potentially dilutive common shares outstanding during the period. Potentially dilutive common shares include certain dilutive outstanding employee stock options, rights to purchase shares of common stock under the Company’s Employee Stock Purchase Plan (“ESPP”) and restricted stock unit awards (“RSUs”).

The following table illustrates the computation of basic and diluted income per common share (in millions, except per share data):



	Years Ended
	July 3, 2015		June 27, 2014		June 28, 2013
Net income	$	1,465	$	1,617	$	980
Weighted average shares outstanding:
Basic	232		235		241
Employee stock options and other	5		7		5
Diluted	237		242		246
Income per common share:
Basic	$	6.31	$	6.88	$	4.07
Diluted	$	6.18	$	6.68	$	3.98
Anti-dilutive potential common shares excluded*	1		2		3

_______________


*	For purposes of computing diluted income per common share, certain potentially dilutive securities have been excluded from the calculation because their effect would have been anti-dilutive.

Stock-based Compensation

The Company accounts for all stock-based compensation at fair value. Stock-based compensation cost is measured at the grant date based on the value of the award and is recognized as expense over the vesting period. The fair values of all stock options granted are estimated using a binomial option-pricing model, and the fair values of all ESPP purchase rights are estimated using the Black-Scholes-Merton option-pricing model. The Company accounts for stock appreciation rights ("SARs") as liability awards based upon management’s intention to settle such awards in cash. The SARs liability is recognized for that portion of fair value for the service period rendered at the reporting date. The share-based liability is remeasured at each reporting date through the requisite service period. Both the binomial and the Black-Scholes-Merton option-pricing models require the input of highly subjective assumptions. The Company is required to use judgment in estimating the amount of stock-based awards that are expected to be forfeited. If actual forfeitures differ significantly from the original estimate, stock-based compensation expense and the results of operations could be materially affected.

Other Comprehensive Income (Loss)

Other comprehensive income (loss) refers to revenue, expenses, gains and losses that are recorded as an element of shareholders’ equity but are excluded from net income. The Company’s other comprehensive income (loss) is comprised of unrealized gains and losses on foreign exchange contracts, foreign currency translation gains and losses, and actuarial gains and losses related to pensions. The income tax impact on components of other comprehensive income is immaterial for all periods presented.

The following table illustrates the changes in the balances of each component of accumulated comprehensive income for 2015, 2014 and 2013:



	Actuarial Pension Gains (Losses)			Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Foreign Exchange Contracts			Accumulated Other Comprehensive Income (Loss)
Balance at June 29, 2012	$	(3	)	$	4		$	(16	)	$	(15	)
Other comprehensive income before reclassifications	—			—			13			13
Amounts reclassified from accumulated other comprehensive income	14			(4		)	(43		)	(33		)
Net current-period other comprehensive income (loss)	14			(4		)	(30		)	(20		)
Balance at June 28, 2013	$	11		$	—		$	(46	)	$	(35	)
Other comprehensive income before reclassifications	—			—			13			13
Amounts reclassified from accumulated other comprehensive income	(4		)	—			38			34
Net current-period other comprehensive income (loss)	(4		)	—			51			47
Balance at June 27, 2014	$	7		$	—		$	5		$	12
Other comprehensive income before reclassifications	—			—			(74		)	(74		)
Amounts reclassified from accumulated other comprehensive income	(2		)	—			44			42
Net current-period other comprehensive income (loss)	(2		)	—			(30		)	(32		)
Balance at July 3, 2015	$	5		$	—		$	(25	)	$	(20	)

Foreign Exchange Contracts

Although the majority of the Company’s transactions are in U.S. dollars, some transactions are based in various foreign currencies. The Company purchases short-term, foreign exchange contracts to hedge the impact of foreign currency fluctuations on certain underlying assets, liabilities and commitments for operating expenses and product costs denominated in foreign currencies. The purpose of entering into these hedging transactions is to minimize the impact of foreign currency fluctuations on the Company’s results of operations. The contract maturity dates do not exceed 12 months. All foreign exchange contracts are for risk management purposes only. The Company does not purchase foreign exchange contracts for trading purposes. The Company had foreign exchange contracts with commercial banks for British Pound Sterling, Euro, Japanese Yen, Malaysian Ringgit, Philippine Peso, Singapore Dollar and Thai Baht, which were designated as either cash flow or fair value hedges and had an aggregate notional amount of $1.3 billion and $1.5 billion at July 3, 2015 and June 27, 2014, respectively.

If the derivative is designated as a cash flow hedge, the effective portion of the change in fair value of the derivative is initially deferred in other comprehensive income (loss). These amounts are subsequently recognized into earnings when the underlying cash flow being hedged is recognized into earnings. Recognized gains and losses on foreign exchange contracts entered into for manufacturing-related activities are reported in cost of revenue and presented within cash flow from operations. Hedge effectiveness is measured by comparing the hedging instrument’s cumulative change in fair value from inception to maturity to the underlying exposure’s terminal value. The Company determined the ineffectiveness associated with its cash flow hedges to be immaterial for all years presented.

A change in the fair value of fair value hedges is recognized in earnings in the period incurred and is reported as a component of operating expenses. All fair value hedges were determined to be effective. The changes in fair value on these contracts were immaterial to the consolidated financial statements for all years presented. See Notes 10 and 12 below.

Pensions and Other Postretirement Benefit Plans

The Company has defined benefit pension plans and other postretirement plans covering certain employees in various countries. The benefits are based on the employees’ years of service and compensation. The plans are funded in conformity with the funding requirements of applicable government authorities. The Company amortizes unrecognized actuarial gains and losses and prior service costs on a straight-line basis over the remaining estimated average service life of the participants. The measurement date for the plans is the Company’s fiscal year-end. The Company recognizes the funded status of its defined benefit pension and postretirement plans in the consolidated balance sheets, with changes in the funded status recognized through accumulated other comprehensive income (loss) in the year in which such changes occur. See Note 14 below.

Use of Estimates

Company management has made estimates and assumptions relating to the reporting of certain assets and liabilities in conformity with U.S. GAAP. These estimates and assumptions have been applied using methodologies that are consistent throughout the periods presented. However, actual results could differ materially from these estimates.

Recent Accounting Pronouncements

In May 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (“ASU”) No. 2015-07, “Fair Value Measurement (Topic 820): Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent)” ("ASU 2015-07"). This guidance eliminates the requirement to categorize investments within the fair value hierarchy if their fair value is measured using the net asset value ("NAV") per share practical expedient in the FASB’s fair value measurement guidance. The new standard is effective for fiscal years and interim periods within those fiscal years, beginning after December 15, 2015, which for the Company is the first quarter of fiscal 2017. The Company does not expect the adoption of ASU 2015-07 to have a material effect on its consolidated financial statements.

In April 2015, the FASB issued ASU 2015-03, "Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs" ("ASU 2015-03"). The new standard requires debt issuance costs related to a recognized debt liability to be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The new standard is effective for fiscal years and interim periods within those fiscal years, beginning after December 15, 2015, which for the Company is the first quarter of fiscal 2017. The adoption of ASU 2015-03 will not have a material effect on the Company's consolidated financial statements.

In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers" ("ASU 2014-09"), which amends the guidance in former Accounting Standards Codification Topic 605, "Revenue Recognition," to provide a single, comprehensive revenue recognition model for all contracts with customers. The new standard requires an entity to recognize revenue in a manner that depicts the transfer of promised goods or services to customers in amounts that reflect the consideration to which an entity expects to be entitled in exchange for those goods or services. The new standard also requires entities to enhance disclosures about the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. In July 2015, the FASB approved a one-year deferral of the effective date of this ASU. The new standard allows for either a full retrospective or a modified retrospective transition method and is effective for fiscal years beginning after December 15, 2017, which for the Company is the first quarter of fiscal 2019. The Company has not yet selected a transition method and is currently evaluating the impact ASU 2014-09 will have on its consolidated financial statements and related disclosures.

In July 2013, the FASB issued ASU 2013-11, "Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists." The new standard requires the presentation of certain unrecognized tax benefits as reductions to deferred tax assets rather than as liabilities in the consolidated balance sheets when a NOL carryforward, a similar tax loss, or a tax credit carryforward exists. The new standard is effective for fiscal years and interim periods within those fiscal years, beginning after December 15, 2013, which for the Company was the first quarter of fiscal 2015. The Company adopted this pronouncement in the first quarter of fiscal 2015, and it did not have a material effect on the Company's consolidated financial statements.

Debt

12 Months Ended

Jul. 03, 2015

Debt Disclosure [Abstract]

Debt

Note 3. Debt

Long-term debt consisted of the following as of July 3, 2015 and June 27, 2014 (in millions):



	July 3, 2015			June 27, 2014
Term loan	$	2,312		$	2,438
Less amounts due in one year	(156		)	(125		)
Long-term debt	$	2,156		$	2,313

On January 9, 2014, the Company, Western Digital Technologies, Inc. (“WDT”) and Western Digital Ireland, Inc. ("WDI") entered into a new credit agreement with JPMorgan Chase Bank, N.A., as administrative agent, and the lenders party thereto, which was subsequently amended on February 25, 2015 (as amended, the "Credit Agreement") to add Western Digital International, Ltd. ("WD International") as an additional borrower. The Credit Agreement provides for $4.0 billion of unsecured loan facilities consisting of a $2.5 billion term loan facility to WDT and a $1.5 billion revolving credit facility to WDT, WDI and WD International (each, a "Borrower" and collectively, the “Borrowers”). The revolving credit facility includes a $100 million sublimit for letters of credit and a $50 million sublimit for swing line loans. Subject to certain conditions, a Borrower may elect to expand the credit facilities by, or obtain incremental term loans of, up to $1.0 billion if existing or new lenders provide additional term or revolving commitments. The loans under the Credit Agreement have a five-year term. The obligations of the Borrowers under the Credit Agreement are guaranteed by the Company and its material domestic subsidiaries, and the obligations of WDI and WD International under the Credit Agreement are also guaranteed by WDT.

The term loans and the revolving credit loans may be prepaid in whole or in part at any time without premium or penalty, subject to certain conditions. As of July 3, 2015, the revolving credit facility had a variable interest rate of 1.7% and a remaining outstanding balance of $255 million. The revolving credit facility is classified within current liabilities as of July 3, 2015 due to the Company's intent to repay the borrowings in 2016. As of July 3, 2015, the term loan facility had a variable interest rate of 1.7% and a remaining outstanding balance of $2.3 billion. The Company is required to make quarterly principal payments on the term loan facility totaling $156 million in fiscal 2016, $219 million in fiscal 2017, $250 million in fiscal 2018 and the remaining balance of $1.7 billion in fiscal 2019.

The Credit Agreement requires the Company to comply with a leverage ratio and an interest coverage ratio calculated on a consolidated basis for the Company and its subsidiaries. In addition, the Credit Agreement contains customary covenants, including covenants that limit or restrict the Company’s and its subsidiaries’ ability to incur liens, incur indebtedness, make certain restricted payments, merge or consolidate and enter into certain speculative hedging arrangements, and customary events of default.

Commitments and Contingencies

12 Months Ended

Jul. 03, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 4. Commitments and Contingencies

Lease Commitments

The Company leases certain facilities and equipment under long-term, non-cancelable operating leases. The Company’s operating leases consist of leased property and equipment that expire at various dates through 2025. Rental expense under these operating leases, including month-to-month rentals, was $60 million, $59 million and $64 million in 2015, 2014 and 2013, respectively. Future minimum lease payments under operating leases that have initial or remaining non-cancelable lease terms in excess of one year at July 3, 2015 are as follows (in millions):



2016	$	40
2017	32
2018	26
2019	23
2020	19
Thereafter	45
Total future minimum payments	$	185

Product Warranty Liability

Changes in the warranty accrual for 2015, 2014 and 2013 were as follows (in millions):



	2015			2014			2013
Warranty accrual, beginning of period	$	182		$	187		$	260
Warranty liabilities assumed as a result of acquisitions	1			4			—
Charges to operations	187			170			178
Utilization	(190		)	(207		)	(221		)
Changes in estimate related to pre-existing warranties	41			28			(30		)
Warranty accrual, end of period	$	221		$	182		$	187

Accrued warranty also includes amounts classified in other liabilities in the consolidated balance sheets of $71 million at July 3, 2015 and $63 million at June 27, 2014.

Long-term Purchase Agreements

The Company has entered into long-term purchase agreements with various component suppliers. The commitments depend on specific products ordered and may be subject to minimum quality requirements and future price negotiations. The Company expects these commitments to total $117 million for 2016, $15 million for 2017, $5 million for 2018, $3 million for 2019 and no remaining commitments for 2020.

Legal Proceedings	12 Months Ended
Legal Proceedings	Jul. 03, 2015
Commitments and Contingencies Disclosure [Abstract]
Legal Proceedings	Note 5. Legal Proceedings When the Company becomes aware of a claim or potential claim, the Company assesses the likelihood of any loss or exposure. The Company discloses information regarding each material claim where the likelihood of a loss contingency is probable or reasonably possible. If a loss contingency is probable and the amount of the loss can be reasonably estimated, the Company records an accrual for the loss. In such cases, there may be an exposure to potential loss in excess of the amount accrued. Where a loss is not probable but is reasonably possible or where a loss in excess of the amount accrued is reasonably possible, the Company discloses an estimate of the amount of the loss or range of possible losses for the claim if a reasonable estimate can be made, unless the amount of such reasonably possible losses is not material to the Company’s financial position, results of operations or cash flows. Unless otherwise stated below, for each of the matters described below, the Company has either recorded an accrual for losses that are probable and reasonably estimable or has determined that, while a loss is reasonably possible (including potential losses in excess of the amounts accrued by the Company), a reasonable estimate of the amount of loss or range of possible losses with respect to the claim or in excess of amounts already accrued by the Company cannot be made. Solely for purposes of this note, “WD” refers to Western Digital Corporation or one or more of its subsidiaries excluding HGST prior to the closing of the Company's acquisition of HGST on March 8, 2012 (the "HGST Closing Date"). HGST refers to Hitachi Global Storage Technologies Holdings Pte. Ltd. or one or more of its subsidiaries as of the HGST Closing Date, and “the Company” refers to Western Digital Corporation and all of its subsidiaries on a consolidated basis including HGST. Intellectual Property Litigation On June 18, 2008, plaintiff Convolve, Inc. (“Convolve”) filed a complaint in the Eastern District of Texas against WD, HGST, and two other companies alleging infringement of U.S. Patent Nos. 6,314,473 and 4,916,635. The complaint sought unspecified monetary damages and injunctive relief. On October 10, 2008, Convolve amended its complaint to allege infringement of only the ‘473 patent. The ‘473 patent allegedly relates to interface technology to select between certain modes of a disk drive’s operations relating to speed and noise. A trial in the matter began on July 18, 2011 and concluded on July 26, 2011 with a verdict against WD and HGST in an amount that is not material to the Company’s financial position, results of operations or cash flows, for which the Company previously recorded an accrual. WD and HGST filed post-trial motions challenging the verdict. On January 17, 2014 and February 11, 2015, the Court denied WD’s and HGST’s post-trial motions. On March 13, 2015, WD and HGST filed Notices of Appeal with the United States District Court for the Federal Circuit (“Federal Circuit”). On April 16, 2015, Convolve filed a motion for reconsideration of the final judgment. On May 5, 2015, the Federal Circuit deactivated the appeal pending the Court’s decision on reconsideration. WD and HGST intend to continue to defend themselves vigorously in this matter. On March 24, 2014, plaintiff Steven F. Reiber (“Reiber”) filed a complaint in the Eastern District of California against the Company, alleging infringement of U.S. Patent Nos. 7,124,927 and 7,389,905. On September 16, 2014, Reiber filed an amended complaint in the Eastern District of California against the Company alleging infringement of three additional patents-U.S. Patent Nos. 6,935,548, 6,651,864, and 6,354,479. Reiber alleged that WD products (including HDD heads, head gimbal assemblies, head stack assemblies and SSDs) infringed these patents based on the allegation that the manufacturing of these products involves the use of certain bonding tools (e.g., wire-bonding tips, capillary tips, and flip-chip handling tools) that have electrically “dissipative” properties, and which are used when bonding components, such as leads, wires and flip chips. On June 4, 2015, the parties reached a settlement agreement for an amount that is not material to the Company’s financial position, results of operations or cash flows. On July 17, 2015, the Court dismissed the action against the Company with prejudice. The matter is now resolved. Seagate Matter In October 2006, Seagate Technology LLC ("Seagate") brought an action against the Company and a now former employee, alleging misappropriation of confidential information and trade secrets. In January 2012, an arbitrator issued a final award against the Company, including pre-award interest, of $630.4 million. The matter was appealed and, on October 8, 2014, the Minnesota Supreme Court upheld the arbitrator’s award. On October 14, 2014, the Company paid Seagate $773.4 million to satisfy the full amount of the final arbitration award plus interest accrued through October 2014. This amount was paid by one of the Company’s foreign subsidiaries using cash held outside of the United States. Seagate disputes the method the Company used for calculating post-award interest and contends that the Company owes Seagate approximately $29 million in additional interest. The Company denies Seagate’s contention and believes it calculated interest properly in accordance with the arbitration award. On November 12, 2014, the Company filed a motion with the District Court seeking an order declaring that WD has paid to Seagate all amounts due under the arbitration award, including all pre-award and post-award interest, and all costs and disbursements assessed by the Minnesota Court of Appeals and the Minnesota Supreme Court. On December 23, 2014, Seagate filed a cross-motion seeking entry of judgment in the amount of $29 million, plus daily interest from October 15, 2014 until the date any judgment is paid. Both parties’ motions were fully briefed and, on January 9, 2015, the District Court heard oral argument on both motions. On April 7, 2015, the District Court granted the Company’s motion and declared that all amounts due and owing from the Company to Seagate have been paid, and a corresponding judgment was entered on April 8, 2015. On May 6, 2015, Seagate appealed the decision and judgment to the Minnesota Court of Appeals. The matter has been fully briefed before the Minnesota Court of Appeals but a date for oral argument has not been set. The Company will continue to defend itself vigorously in this matter. Other Matters On December 22, 2011, the German Central Organization for Private Copying Rights (Zentralstelle für private Überspielungsrechte), (“ZPÜ”), an organization consisting of several copyright collecting societies, instituted arbitration proceedings against Western Digital's German subsidiary ("WD Germany") before the Copyright Arbitration Board (“CAB”) claiming copyright levies for multimedia hard drives, external hard drives and network hard drives sold or introduced into commerce in Germany by WD Germany from January 2008 through December 2010. The CAB, which was required to issue a settlement proposal within one year of the initiation of the action, failed to do so and requested the parties consent to continue the deadline. WD Germany declined to provide consent and, on February 1, 2013, WD Germany filed a declaratory relief action against ZPÜ in the Higher Regional Court of Munich (the “Higher Court”), seeking an order from the court to determine the copyright levy issue. On May 21, 2013, ZPÜ filed a counter-claim against WD Germany with the Higher Court, seeking copyright levies for multimedia hard drives, external hard drives and network hard drives (collectively, "Covered Products") sold or introduced into commerce from January 2008 through December 2010 based on tariffs published by ZPÜ on November 3, 2011. On May 22, 2014, oral argument on the pleadings occurred. On January 15, 2015, the Higher Court ruled in favor of ZPÜ. In its ruling, the Higher Court declared that WD Germany must pay certain levies on certain WD products which it sold in Germany between January 1, 2008 and December 31, 2010. The judgment specifies levy amounts on certain WD products sold from 2008 to 2010 and directs WD Germany to provide applicable sales data to the ZPÜ. The exact amount of the judgment has not been determined. ZPÜ and WD Germany filed appeals with the German Federal Court of Justice on February 18 and February 20, 2015. WD intends to defend itself vigorously in this matter. On December 11, 2014, ZPÜ submitted a pleading to the CAB seeking copyright levies for multimedia hard drives, external hard drives and network hard drives sold or introduced into commerce in Germany by WD Germany from January 1, 2012 to December 31, 2013. WD intends to defend itself vigorously in this matter. The Company has recorded an accrual for German copyright levies in an amount that is not material to the Company’s financial position, results of operations or cash flows. It is reasonably possible that the Company may incur losses totaling up to $95 million, including the amounts accrued. In the normal course of business, the Company is subject to other legal proceedings, lawsuits and other claims. Although the ultimate aggregate amount of probable monetary liability or financial impact with respect to these other matters is subject to many uncertainties and is therefore not predictable with assurance, management believes that any monetary liability or financial impact to the Company from these other matters, individually and in the aggregate, would not be material to the Company’s financial condition, results of operations or cash flows. However, there can be no assurance with respect to such result, and monetary liability or financial impact to the Company from these other matters could differ materially from those projected.

Business Segment, Geographic Information and Major Customers

12 Months Ended

Jul. 03, 2015

Text Block [Abstract]

Business Segment, Geographic Information and Major Customers

Note 6. Business Segment, Geographic Information and Major Customers

Segment Information

The Company is organized into two operating segments that have been aggregated into one reportable operating segment, the hard drive business.

Geographic Information

The Company’s operations outside the United States include manufacturing facilities in China, Japan, Malaysia, the Philippines and Thailand as well as sales offices throughout the Americas, Asia Pacific, Europe and the Middle East. The following table summarizes the Company’s operations by geographic area for the three years ended July 3, 2015 (in millions):



	2015		2014		2013
Net revenue(1):
United States	$	3,054	$	3,013	$	3,403
China	2,726		3,499		4,145
Asia	4,552		4,756		4,129
Europe, Middle East and Africa	3,169		3,117		3,056
Other	1,071		745		618
Total	$	14,572	$	15,130	$	15,351
Long-lived assets:
United States	$	2,465	$	2,415	$	1,517
China	218		279		348
Asia	3,655		4,002		4,434
Europe, Middle East and Africa	326		83		139
Total	$	6,664	$	6,779	$	6,438

_______________


(1)	Net revenue is attributed to geographic regions based on the ship to location of the customer.

Major Customers

For 2015 and 2014, sales to Hewlett Packard Company accounted for 11% of the Company’s net revenue. For 2013, no single customer accounted for 10% or more of the Company’s net revenue. For 2015, 2014, and 2013, sales to the Company’s top ten customers accounted for 44% of the Company’s net revenue.

Western Digital Corporation 401(k) Plan	12 Months Ended
Western Digital Corporation 401(k) Plan	Jul. 03, 2015
Text Block [Abstract]
Western Digital Corporation 401(k) Plan	Note 7. Western Digital Corporation 401(k) Plan The Company has adopted the Western Digital Corporation 401(k) Plan (the “Plan”). The Plan covers substantially all domestic employees, subject to certain eligibility requirements. The Company makes a basic matching contribution on behalf of each participating eligible employee equal to fifty percent (50%) of the eligible participant’s pre-tax contributions for the contribution cycle not to exceed 5% of the eligible participant’s compensation; provided, however, that each eligible participant shall receive a minimum annual basic matching contribution equal to fifty percent (50%) of the first $4,000 of pre-tax contributions for any calendar year. The Plan was amended effective January 1, 2013, to provide for a year-end true-up matching contribution such that participants who save at least 5% of their eligible compensation for the year receive a minimum annual matching contribution equal to 2.5% of eligible compensation (up to Internal Revenue Service (“IRS”) limitations). Company contributions vest over a 5-year period of employment. For 2015, 2014, and 2013, the Company made Plan contributions of $22 million, $21 million and $19 million, respectively.

Shareholders' Equity

12 Months Ended

Jul. 03, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Shareholders' Equity

Note 8. Shareholders’ Equity

Stock Incentive Plans

In addition to awards assumed in connection with acquisitions, the Company maintains the amended and restated 2004 Performance Incentive Plan.

The types of awards that may be granted under the 2004 Performance Incentive Plan include stock options, SARs, RSUs, stock bonuses and other forms of awards granted or denominated in the Company’s common stock or units of the Company’s common stock, as well as cash bonus awards. Persons eligible to receive awards under the 2004 Performance Incentive Plan include officers and employees of the Company or any of its subsidiaries, directors of the Company and certain consultants and advisors to the Company or any of its subsidiaries. The vesting of awards under the 2004 Performance Incentive Plan is determined at the date of grant. Each award expires on a date determined at the date of grant; however, the maximum term of options and SARs under the 2004 Performance Incentive Plan is ten years after the grant date of the award. RSUs granted under the 2004 Performance Incentive Plan typically vest over periods ranging from one to four years from the date of grant. To the extent available, the Company issues shares out of treasury stock upon the vesting of awards or the exercise of employee stock options and ESPP.

As of July 3, 2015, the maximum number of shares of the Company’s common stock that was authorized for award grants under the 2004 Performance Incentive Plan was 48.8 million shares. Shares issued in respect of stock options and SARs granted under the 2004 Performance Incentive Plan count against the plan’s share limit on a one-for-one basis, whereas shares issued in respect of any other type of award granted through November 7, 2012 under the plan count against the plan’s share limit as 1.35 shares for every one share actually issued in connection with such award. Shares issued in respect of awards, other than options and SARs, granted on or after November 8, 2012 count against the plan’s share limit as 1.72 shares for every one share actually issued in connection with such award. The 2004 Performance Incentive Plan was extended in 2013 and will terminate on August 6, 2022 unless terminated earlier by the Company’s Board of Directors.

Employee Stock Purchase Plan

The Company maintains an ESPP. Under the ESPP, eligible employees may authorize payroll deductions of up to 10% of their eligible compensation during prescribed offering periods to purchase shares of the Company’s common stock at 95% of the fair market value of common stock on either the first day of that offering period or on the applicable exercise date, whichever is less. A participant may participate in only one offering period at a time, and a new offering period generally begins each June 1st and December 1st. Each offering period is generally 24 months and consists of four exercise dates (each, generally six months following the start of the offering period or the preceding exercise date, as the case may be). If the fair market value of the Company’s common stock is less on a given exercise date than on the date of grant, employee participation in that offering period ends and participants are automatically re-enrolled in the next new offering period.

Stock-based Compensation Expense

The Company recognized in expense $74 million, $85 million and $88 million for stock-based compensation related to the vesting of options issued by the Company under the 2004 Performance Incentive Plan and the ESPP in 2015, 2014 and 2013, respectively. The tax benefit realized as a result of the aforementioned stock-based compensation expense was $19 million, $22 million and $25 million in 2015, 2014 and 2013, respectively. As of July 3, 2015, total compensation cost related to unvested stock options granted under the 2004 Performance Incentive Plan and ESPP rights issued to employees but not yet recognized was $96 million and will be amortized on a straight-line basis over a weighted average service period of approximately 2.0 years.

For purposes of this footnote, references to RSUs include performance stock unit awards (“PSUs”). The effect of the PSU activity was immaterial to the consolidated financial statements in 2015, 2014 and 2013. The Company recognized in expense $88 million, $71 million and $52 million related to RSUs granted under the 2004 Performance Incentive Plan that vested during 2015, 2014 and 2013, respectively. The tax benefit realized as a result of the aforementioned expense was $24 million, $18 million and $14 million in 2015, 2014 and 2013, respectively. As of July 3, 2015, the aggregate unamortized fair value of all unvested RSUs granted under the 2004 Performance Incentive Plan was $119 million, which will be recognized on a straight-line basis over a weighted average vesting period of approximately 1.3 years.

Stock Option Activity

The following table summarizes stock option activity under the 2004 Performance Incentive Plan over the last three fiscal years (in millions, except per share amounts and remaining contractual lives):



	Number of Shares		Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Options outstanding at June 29, 2012	15.8		$	21.89
Granted	3.4		43.51
Exercised	(6.8	)	18.53
Forfeited or expired	(0.5	)	32.72
Options outstanding at June 28, 2013	11.9		$	29.47
Granted	1.6		68.96
Assumed	1.7		38.18
Exercised	(4.5	)	25.22
Forfeited or expired	(0.6	)	67.23
Options outstanding at June 27, 2014	10.1		$	37.03
Granted	1.2		94.10
Assumed	0.1		3.49
Exercised	(4.1	)	31.90
Forfeited or expired	(0.5	)	56.41
Options outstanding at July 3, 2015	6.8		$	50.00	4.3	$	242
Exercisable at July 3, 2015	3.4		$	34.81	3.2	$	161
Vested and expected to vest after July 3, 2015	6.7		$	49.45	4.3	$	241

If an option has an exercise price that is less than the quoted price of the Company’s common stock at the particular time, the aggregate intrinsic value of that option at that time is calculated based on the difference between the exercise price of the underlying options and the quoted price of the Company’s common stock at that time. As of July 3, 2015, the Company had options outstanding to purchase an aggregate of 5.5 million shares with an exercise price below the quoted price of the Company’s stock on that date resulting in an aggregate intrinsic value of $242 million at that date. During 2015, 2014 and 2013, the aggregate intrinsic value of options exercised under the 2004 Performance Incentive Plan was $283 million, $247 million and $211 million, respectively, determined as of the date of exercise.

The following table summarizes information about options outstanding and exercisable under the 2004 Performance Incentive Plan as of July 3, 2015 (in millions, except exercise price):



	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number of Shares	Weighted Average Remaining Contractual Life (in years)	Weighted Average Exercise Price		Number of Shares	Weighted Average Exercise Price
$2.99 – $16.85	1.1	4.7	$	11.03	0.7	$	10.57
$17.52 – $29.60	1.3	2.5	27.51		1.2	27.35
$30.06 – $41.75	0.5	2.6	36.56		0.4	35.57
$43.11 – $43.11	1.4	4.0	43.11		0.7	43.11
$48.01 – $68.49	1.1	5.0	66.27		0.3	65.87
$69.29 – $388.77	1.4	6.0	102.96		0.1	148.95
	6.8	4.3	$	50.00	3.4	34.81

RSU Activity

The following table summarizes RSU activity (in millions, except weighted average grant date fair value):



	Number of Shares		Weighted Average Grant Date Fair Value
RSUs outstanding at June 29, 2012	3.7		$	33.19
Granted	1.7		43.14
Vested	(1.4	)	37.89
Forfeited or expired	(0.4	)	35.46
RSUs outstanding at June 28, 2013	3.6		$	35.82
Granted	1.4		69.08
Assumed	0.2		62.73
Vested	(1.3	)	33.61
Forfeited or expired	(0.2	)	47.62
RSUs outstanding at June 27, 2014	3.7		$	49.77
Granted	1.3		100.13
Vested	(1.7	)	42.24
Forfeited or expired	(0.3	)	67.31
RSUs outstanding at July 3, 2015	3.0		$	73.80
Expected to vest after July 3, 2015	2.9		$	73.28

The fair value of each RSU is the market price of the Company’s stock on the date of grant. RSUs are generally payable in an equal number of shares of the Company’s common stock at the time of the vesting of the units. The aggregate value of RSUs that became fully-vested during 2015, 2014 and 2013 was $170 million, $89 million and $71 million, respectively, determined as of the vest date. The fair value of the shares underlying the RSU awards at the date of grant or assumption was $125 million, $95 million and $74 million in 2015, 2014 and 2013, respectively. These amounts are being recognized to expense over the corresponding vesting periods.

SARs Activity

The Company recognized a benefit of $3 million in 2015, and $36 million and $46 million in expense related to adjustments to market value as well as the vesting of SARs in 2014 and 2013, respectively. No tax benefit was realized in 2015 as a result of the aforementioned SARs expense, as compared to tax benefits realized of $7 million and $4 million in 2014 and 2013, respectively. The SARs will be settled in cash upon exercise. The Company had a total liability of $41 million related to SARs included in accrued liabilities as of July 3, 2015 in the consolidated balance sheet.

The share-based compensation liability for SARs is recognized for the portion of fair value for which service has been rendered at the reporting date. The share-based liability is remeasured at each reporting date, using a binomial option-pricing model, through the requisite service period. As of July 3, 2015, 0.6 million SARs were outstanding with a weighted average exercise price of $7.92. There were no SARs granted in 2015, 2014 and 2013, and all other SARs activity was immaterial to the consolidated financial statements for the year ended July 3, 2015.

Fair Value Disclosure — Binomial Model

The fair value of stock options granted is estimated using a binomial option-pricing model. The binomial model requires the input of highly subjective assumptions. The Company uses historical data to estimate exercise, employee termination, and expected stock price volatility within the binomial model. The risk-free rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant. The fair value of stock options granted during the three years ended July 3, 2015 was estimated using the following weighted average assumptions:



	2015	2014	2013
Suboptimal exercise factor	2.52	2.07	1.90
Range of risk-free interest rates	0.11% to 2.16%	0.10% to 2.44%	0.14% to 1.96%
Range of expected stock price volatility	0.23 to 0.47	0.27 to 0.50	0.36 to 0.53
Weighted average expected volatility	0.36	0.43	0.49
Post-vesting termination rate	1.25%	3.10%	2.16%
Dividend yield	1.69%	1.58%	2.53%
Fair value	$32.19	$24.14	$15.75

The weighted average expected term of the Company’s stock options granted during 2015, 2014 and 2013 was 5.8 years, 5.0 years and 4.0 years, respectively.

Fair Value Disclosure — Black-Scholes-Merton Model

The fair value of ESPP purchase rights issued is estimated at the date of grant of the purchase rights using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton option-pricing model requires the input of highly subjective assumptions such as the expected stock price volatility and the expected period until options are exercised. Purchase rights under the ESPP are granted on either June 1st or December 1st of each year.

The fair values of all ESPP purchase rights granted on or prior to July 3, 2015 have been estimated at the date of grant using a Black-Scholes-Merton option-pricing model with the following weighted average assumptions:



	ESPP
	2015	2014	2013
Option life (in years)	1.26	1.24	1.24
Risk-free interest rate	0.45%	0.26%	0.23%
Stock price volatility	0.26	0.31	0.42
Dividend yield	2.34%	1.64%	1.61%
Fair value	$14.50	$14.62	$10.36

Stock Repurchase Program

The Company's Board of Directors previously authorized $3.0 billion for the repurchase of the Company's common stock. On February 3, 2015, the Company's Board of Directors authorized an additional $2.0 billion for the repurchase of its common stock and approved the extension of its stock repurchase program to February 3, 2020. The Company repurchased 9.6 million shares for a total cost of $970 million during 2015. The remaining amount available to be purchased under the Company’s stock repurchase program as of July 3, 2015 was $2.2 billion. Subsequent to July 3, 2015 and through August 13, 2015, the Company repurchased an additional 0.7 million shares of its common stock for a total cost of $60 million. The Company may continue to repurchase its stock as it deems appropriate. Repurchases under the stock repurchase program may be made in the open market or in privately negotiated transactions and may be made under a Rule 10b5-1 plan. The Company expects stock repurchases to be funded principally by operating cash flows and borrowings under the Credit Agreement.

Stock Reserved for Issuance

The following table summarizes all shares of common stock reserved for issuance at July 3, 2015 (in millions):



	Number of Shares
Maximum shares issuable in connection with:
Outstanding awards and shares available for award grants	16.6
ESPP	4.8
Total	21.4

Dividends to Shareholders

On September 13, 2012, the Company announced that its Board of Directors had authorized the adoption of a quarterly cash dividend policy. Under the cash dividend policy, holders of the Company’s common stock receive dividends when and as declared by the Company’s Board of Directors. In 2015, the Company declared aggregate cash dividends of $1.80 per share of the Company’s common stock, totaling $418 million, of which $302 million was paid during 2015. The Company also paid $94 million of dividends in 2015 related to dividends accrued in 2014. On August 4, 2015, the Company declared a cash dividend of $0.50 per share of its common stock to shareholders of record as of October 2, 2015, which will be paid on October 15, 2015. The Company may modify, suspend or cancel its cash dividend policy in any manner and at any time.

Income Taxes

12 Months Ended

Jul. 03, 2015

Income Tax Disclosure [Abstract]

Income Taxes

Note 9. Income Taxes

Pre-tax Income

The domestic and foreign components of income before income taxes were as follows for the three years ended July 3, 2015 (in millions):



	2015		2014		2013
Foreign	$	1,501	$	1,664	$	870
Domestic	76		88		352
Income before income taxes	$	1,577	$	1,752	$	1,222

Income Tax Provision

The components of the provision for income taxes were as follows for the three years ended July 3, 2015 (in millions):



	2015			2014			2013
Current:
Foreign	$	54		$	47		$	57
Domestic-federal	43			98			149
Domestic-state	(13		)	3			1
Deferred:
Foreign	12			(3		)	(7		)
Domestic-federal	11			(14		)	(46		)
Domestic-state	5			4			88
Income tax provision	$	112		$	135		$	242

The Company’s income tax provision for 2015 and 2013 reflects tax benefits of $27 million and $37 million, respectively, as a result of the retroactive extensions of the U.S. Federal research and development tax credit that were signed into law on December 19, 2014 and January 2, 2013. In addition, the Company recorded an $88 million charge to reduce its previously recognized California deferred tax assets in 2013 as a result of the enactment of California Proposition 39.

Remaining net undistributed earnings from foreign subsidiaries at July 3, 2015 on which no U.S. tax has been provided amounted to $9.4 billion. The net undistributed earnings are intended to finance local operating requirements and capital investments. Accordingly, an additional U.S. tax provision has not been made on these earnings. The tax liability for these earnings would be $3.1 billion if the Company repatriated the $9.4 billion in undistributed earnings from the foreign subsidiaries.

Deferred Taxes

Temporary differences and carryforwards, which give rise to a significant portion of deferred tax assets and liabilities as of July 3, 2015 and June 27, 2014 were as follows (in millions):



	2015			2014
Deferred tax assets:
Sales related reserves and accrued expenses not currently deductible	$	50		$	38
Accrued compensation and benefits not currently deductible	138			190
Domestic net operating loss carryforward	137			130
Business credit carryforward	167			155
Long-lived assets	49			58
Other	65			65
Total deferred tax assets	606			636
Deferred tax liabilities:
Long-lived assets	(126		)	(152		)
Other	(10		)	(11		)
Total deferred tax liabilities	(136		)	(163		)
Valuation allowances	(166		)	(128		)
Deferred tax assets, net	$	304		$	345
Deferred tax assets:
Current portion (included in other current assets)	$	167		$	184
Non-current portion (included in other non-current assets)	273			324
Total deferred tax assets	440			508
Deferred tax liabilities:
Current portion (included in other current assets)	(1		)	(2		)
Non-current portion (included in other non-current assets)	(135		)	(161		)
Total deferred tax liabilities	(136		)	(163		)
Deferred tax assets, net	$	304		$	345

The net deferred tax asset valuation allowance increased by $38 million in 2015 and decreased by $5 million in 2014. The valuation allowance is based on the Company’s assessment that it is more likely than not that certain deferred tax assets will not be realized in the foreseeable future.

In addition to the deferred tax assets presented above, the Company had additional NOL benefits related to stock-based compensation deductions of $90 million and $11 million at July 3, 2015 and June 27, 2014, respectively. During 2015, the Company generated an additional $97 million of benefits related to stock-based compensation deductions, of which $19 million were utilized in 2015 and recorded to shareholders' equity.

Effective Tax Rate

Reconciliation of the U.S. Federal statutory rate to the Company’s effective tax rate is as follows for the three years ended July 3, 2015:



	2015		2014		2013
U.S. Federal statutory rate	35	%	35	%	35	%
Tax rate differential on international income	(29	)	(28	)	(19	)
Tax effect of U.S. permanent differences	1		2		—
State income tax, net of federal tax	—		—		8
Income tax credits	(2	)	(1	)	(4	)
Other	2		—		—
Effective tax rate	7	%	8	%	20	%

Tax Holidays and Carryforwards

A substantial portion of the Company’s manufacturing operations in Malaysia, the Philippines, Singapore and Thailand operate under various tax holidays and tax incentive programs which will expire in whole or in part at various dates from 2016 through 2025. Certain of the holidays may be extended if specific conditions are met. The net impact of these tax holidays and tax incentives was to increase the Company’s net earnings by $641 million ($2.70 per diluted share), $905 million ($3.74 per diluted share), and $899 million ($3.65 per diluted share) in 2015, 2014 and 2013, respectively.

As of July 3, 2015, the Company had federal and state NOL carryforwards of $515 million and $422 million, respectively. In addition, as of July 3, 2015, the Company had various federal and state tax credit carryforwards of $417 million combined. The NOL carryforwards available to offset future federal and state taxable income expire at various dates from 2021 to 2035 and 2020 to 2035, respectively. Approximately $100 million of the credit carryforwards available to offset future taxable income expire at various dates from 2017 to 2035. The remaining amount is available indefinitely. NOLs and credits relating to Komag, Incorporated (“Komag”), HGST, sTec, Virident and Amplidata are subject to limitations under Sections 382 and 383 of the Internal Revenue Code. The Company does not expect these limitations to result in a reduction in the total amount of Komag, sTec, Virident or Amplidata's NOLs and credits ultimately realized. The Company expects the total amount of HGST’s NOLs and credits ultimately realized will be reduced by $39 million and $25 million, respectively.

Uncertain Tax Positions

With the exception of certain unrecognized tax benefits that are directly associated with the tax position taken, unrecognized tax benefits are presented gross in the Company’s balance sheet. Interest and penalties related to unrecognized tax benefits are recognized in liabilities recorded for uncertain tax positions and are recorded in the provision for income taxes. As of July 3, 2015, such interest and penalties were not material. As of July 3, 2015, the Company had $350 million of unrecognized tax benefits.

The following is a tabular reconciliation of the total amounts of unrecognized tax benefits for the years ended July 3, 2015, June 27, 2014 and June 28, 2013 (in millions):



	2015			2014			2013
Unrecognized tax benefit at beginning of period	$	300		$	240		$	280
Gross increases related to current year tax positions	44			27			29
Gross increases related to prior year tax positions	6			26			10
Gross decreases related to prior year tax positions	—			(5		)	(8		)
Settlements	—			—			(64		)
Lapse of statute of limitations	(3		)	—			(7		)
Acquisitions	3			12			—
Unrecognized tax benefit at end of period	$	350		$	300		$	240

The Company’s unrecognized tax benefits are primarily included within long-term liabilities in the Company’s consolidated balance sheets. The entire balance of unrecognized tax benefits at July 3, 2015, June 27, 2014 and June 28, 2013, if recognized, would affect the effective tax rate, subject to certain future valuation allowance reversals.

The Company files U.S. Federal, U.S. state, and foreign tax returns. For both federal and state tax returns, with few exceptions, the Company is subject to examination for fiscal years 2008 through 2014. In foreign jurisdictions, with few exceptions, the Company is subject to examination for all years subsequent to fiscal 2008. The Company is no longer subject to examination by the IRS for periods prior to 2008, although carry forwards generated prior to those periods may still be adjusted upon examination by the IRS or state taxing authority if they either have been or will be used in a subsequent period.

The IRS previously completed its field examination of the Company's federal income tax returns for fiscal years 2006 and 2007, and the Company and the IRS reached agreement with respect to all matters except on the proposed adjustments to income before income taxes relating to intercompany payable balances. The proposed adjustments relating to intercompany payable balances for fiscal years 2006 and 2007 are addressed in conjunction with the IRS’s examination of the Company's fiscal years 2008 and 2009, which commenced in January 2012. The Company received a Notice of Proposed Adjustment ("NOPA") from the IRS for fiscal year 2009 relating to intercompany payable balances and two NOPAs from the IRS for fiscal years 2008 and 2009 relating to transfer pricing with the Company's foreign subsidiaries. The NOPAs relating to intercompany payable balances and transfer pricing with the Company's foreign subsidiaries propose to increase the Company's U.S. taxable income which would result in additional federal tax expense of approximately $72 million and $723 million, respectively, subject to interest. The Company disagrees with the proposed adjustments, believes that the tax positions are properly supported and will vigorously contest the position taken by the IRS. In January 2012, the IRS commenced an examination of the 2007 fiscal period ended September 5, 2007 of Komag, which the Company acquired on September 5, 2007. The IRS examined calendar years 2010 and 2011 of HGST, which was acquired by the Company on March 8, 2012, and completed the examination with no material adjustments.

The Company believes that adequate provision has been made for any adjustments that may result from tax examinations. However, the outcome of tax examinations cannot be predicted with certainty. If any issues addressed in the Company’s tax examinations are resolved in a manner not consistent with management’s expectations, the Company could be required to adjust its provision for income taxes in the period such resolution occurs. As of July 3, 2015, it is not possible to estimate the amount of change, if any, in the unrecognized tax benefits that is reasonably possible within the next twelve months. Any significant change in the amount of the Company’s liability for unrecognized tax benefits would most likely result from additional information or settlements relating to the examination of the Company’s tax returns.

Fair Value Measurements

12 Months Ended

Jul. 03, 2015

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note 10. Fair Value Measurements

Financial assets and liabilities that are remeasured and reported at fair value at each reporting period are classified and disclosed in one of the following three levels:

Level 1. Quoted prices in active markets for identical assets or liabilities.

Level 2. Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3. Inputs that are unobservable for the asset or liability and that are significant to the fair value of the assets or liabilities.

The following table presents information about the Company’s financial assets and liabilities that are measured at fair value on a recurring basis as of July 3, 2015, and indicates the fair value hierarchy of the valuation techniques utilized to determine such value (in millions):



	Fair Value Measurements at Reporting Date Using
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents
Money market funds	$	135	$	—	$	—	$	135
Total cash equivalents	135		—		—		135
Short-term investments:
U.S. Treasury securities	—		50		—		50
U.S. Government agency securities	—		4		—		4
Commercial paper	—		109		—		109
Certificates of deposit	—		99		—		99
Total short-term investments	—		262		—		262
Long-term investments:
U.S. Treasury securities	—		237		—		237
U.S. Government agency securities	—		91		—		91
Total long-term investments	—		328		—		328
Foreign exchange contracts	—		—		—		—
Total assets at fair value	$	135	$	590	$	—	$	725
Liabilities:
Foreign exchange contracts	$	—	$	31	$	—	$	31
Total liabilities at fair value	$	—	$	31	$	—	$	31

The following table presents information about the Company’s financial assets and liabilities that are measured at fair value on a recurring basis as of June 27, 2014, and indicates the fair value hierarchy of the valuation techniques utilized to determine such value (in millions):



	Fair Value Measurements at Reporting Date Using
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents
Money market funds	$	756	$	—	$	—	$	756
Bank acceptances	—		1		—		1
Total cash equivalents	756		1		—		757
Short-term investments:
U.S. Government agency securities	—		53		—		53
Commercial paper	—		165		—		165
Certificates of deposit	—		66		—		66
Total short-term investments	—		284		—		284
Long-term investments:
U.S. Treasury securities	—		180		—		180
U.S. Government agency securities	—		35		—		35
Total long-term investments	—		215		—		215
Foreign exchange contracts	—		7		—		7
Total assets at fair value	$	756	$	507	$	—	$	1,263
Liabilities:
Foreign exchange contracts	$	—	$	2	$	—	$	2
Total liabilities at fair value	$	—	$	2	$	—	$	2

Money Market Funds. The Company’s money market funds are funds that invest in U.S. Treasury and U.S. Government Agency securities. Money market funds are valued based on quoted market prices.

Certificates of Deposit. The Company’s certificates of deposit are investments which are held in custody by a third party. Certificates of deposit are valued using fixed interest rates.

Commercial Paper. The Company’s commercial paper securities are investments issued by corporations which are held in custody by a third party. Commercial paper securities are valued using a market approach which is based on observable inputs including market interest rates from multiple pricing sources.

U.S. Government Agency Securities. The Company’s U.S. Government agency securities are investments in fixed income securities sponsored by the U.S. Government and are held in custody by a third party. U.S. Government agency securities are valued using a market approach which is based on observable inputs including market interest rates from multiple pricing sources.

U.S. Treasury Securities. The Company’s U.S. Treasury securities are direct obligations of the U.S. federal government and are held in custody by a third party. U.S. Treasury securities are valued using a market approach which is based on observable inputs including market interest rates from multiple pricing sources.

Bank Acceptances. The Company’s bank acceptances are held in custody by a third party. Bank acceptances are valued using a market approach which is based on observable inputs including market interest rates from multiple pricing sources.

Foreign Exchange Contracts. The Company’s foreign exchange contracts are short-term contracts to hedge the Company’s foreign currency risk. Foreign exchange contracts are classified within other current assets and liabilities in the consolidated balance sheets. For contracts that have a right of offset by its individual counterparties under master netting arrangements, the Company presents its foreign exchange contracts on a net basis by counterparty in the consolidated balance sheets. Foreign exchange contracts are valued using an income approach that is based on a present value of future cash flows model. The market-based observable inputs for the model include forward rates and credit default swap rates. For more information on the Company's foreign exchange contracts, see Note 12 below.

In 2015 and 2014, there were no transfers between levels. In 2014 the Company sold its auction rate securities, which were Level 3 financial assets measured on a recurring basis, for total proceeds of $17 million and recorded a gain of $3 million within interest and other income in the consolidated statements of income.

Investments Available-for-Sale Investments

12 Months Ended

Jul. 03, 2015

Schedule of Available-for-sale Securities [Line Items]

Cost and Equity Method Investments Disclosure [Text Block]

Note 11. Investments

The following table summarizes, by major type, the fair value and cost basis of the Company’s investments classified as available-for-sale as of July 3, 2015 (in millions):



	Cost Basis		Unrealized Gains (Losses)		Fair Value
Available-for-sale securities:
U.S. Treasury securities	$	287	$	—	$	287
U.S. Government agency securities	95		—		95
Commercial paper	109		—		109
Certificates of deposit	99		—		99
Total	$	590	$	—	$	590

The following table summarizes, by major type, the fair value and cost basis of the Company’s investments classified as available-for-sale as of June 27, 2014 (in millions):



	Cost Basis		Unrealized Gains (Losses)		Fair Value
Available-for-sale securities:
U.S. Treasury securities	$	180	$	—	$	180
U.S. Government agency securities	88		—		88
Commercial paper	165		—		165
Certificates of deposit	66		—		66
Total	$	499	$	—	$	499

The fair value of the Company’s investments classified as available-for-sale securities at July 3, 2015, by remaining contractual maturity were as follows (in millions):



	Cost Basis		Fair Value
Due in less than one year (short-term investments)	$	262	$	262
Due in one to five years (included in other non-current assets)	328		328
Total	$	590	$	590

The Company determined no available-for-sale securities were other-than-temporarily impaired in 2015 or 2014.

Foreign Exchange Contracts

12 Months Ended

Jul. 03, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Foreign Exchange Contracts

Note 12. Foreign Exchange Contracts

As of July 3, 2015, the net amount of unrealized losses with respect to the Company’s foreign exchange contracts that is expected to be reclassified into earnings within the next 12 months was $26 million. In addition, as of July 3, 2015, the Company did not have any foreign exchange contracts with credit-risk-related contingent features. The Company opened $4.6 billion and $4.5 billion, and closed $4.8 billion and $4.9 billion, in foreign exchange contracts for the years ended July 3, 2015 and June 27, 2014, respectively. The fair value and balance sheet location of such contracts were as follows (in millions):



	Asset Derivatives						Liability Derivatives
	2015			2014			2015			2014
Derivatives Designated as Hedging Instruments	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Foreign exchange contracts	Other current assets	$	—	Other current assets	$	7	Accrued expenses	$	31	Accrued expenses	$	2

The following table presents the gross amounts of the Company's derivative instruments, amounts offset due to master netting arrangements with the Company's various counterparties, and the net amounts recognized in the consolidated balance sheet as of July 3, 2015 (in millions):



									Gross Amounts Not Offset in the Balance Sheet
Derivatives Designated as Hedging Instruments	Gross Amounts of Recognized Assets (Liabilities)			Gross Amounts Offset in the Balance Sheet		Net Amounts of Assets (Liabilities) Presented in the Balance Sheet			Financial Instruments		Cash Collateral Received or Pledged		Net Amount
Foreign exchange contracts
Financial liabilities	(31		)	—		$	(31	)	—		—		(31		)
Total derivative instruments	$	(31	)	$	—	$	(31	)	$	—	$	—	$	(31	)



										Gross Amounts Not Offset in the Balance Sheet
Derivatives Designated as Hedging Instruments	Gross Amounts of Recognized Assets (Liabilities)			Gross Amounts Offset in the Balance Sheet			Net Amounts of Assets (Liabilities) Presented in the Balance Sheet			Financial Instruments		Cash Collateral Received or Pledged		Net Amount
Foreign exchange contracts
Financial assets	$	9		$	(2	)	$	7		$	—	$	—	$	7
Financial liabilities	(4		)	2			(2		)	—		—		(2		)
Total derivative instruments	$	5		$	—		$	5		$	—	$	—	$	5

The impact on the consolidated financial statements was as follows (in millions):



Derivatives in Cash Flow Hedging Relationships	Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivatives					Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income
Derivatives in Cash Flow Hedging Relationships	2015			2014			2015			2014
Foreign exchange contracts	$	(74	)	$	13	Cost of revenue	$	(44	)	$	(38	)

The total net realized transaction and foreign exchange contract currency gains and losses were not material to the consolidated financial statements during 2015, 2014 and 2013. See Notes 1 and 10 above for additional disclosures related to the Company’s foreign exchange contracts.

Other Intangible Assets

12 Months Ended

Jul. 03, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets Disclosure [Text Block]

Note 13. Goodwill and Other Intangible Assets

The following table summarizes the activity related to the carrying amount of goodwill:



	Carrying Amount
Balance as of June 28, 2013	$	1,954
Goodwill recorded in connection with acquisitions	605
Balance as of June 27, 2014	$	2,559
Goodwill recorded in connection with acquisitions	207
Balance as of July 3, 2015	$	2,766

Intangible assets as of July 3, 2015 were as follows:



	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	(in years)	(in millions)		(in millions)		(in millions)
Existing technology	5	$	638	$	471	$	167
Customer relationships	4	152		126		26
Other	3	74		68		6
Leasehold interests	31	39		11		28
In-process research and development	—	105		—		105
Total		$	1,008	$	676	$	332

Intangible assets as of June 27, 2014 were as follows:



	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	(in years)	(in millions)		(in millions)		(in millions)
Existing technology	5	$	566	$	368	$	198
Customer relationships	4	148		97		51
Other	3	73		55		18
Leasehold interests	32	43		10		33
In-process research and development	—	154		—		154
Total		$	984	$	530	$	454

Other intangible assets are amortized on a straight-line basis over the respective estimated useful lives of the assets. Amortization expense for intangible assets was $171 million, $213 million and $209 million for 2015, 2014 and 2013, respectively. During 2015 and 2014, the Company recorded $39 million and $53 million of impairment charges related to intangible assets, respectively, which are recorded in the employee termination, asset impairment and other charges within the Company's consolidated statements of income. The impairment charges primarily relate to acquired in-process research and development projects that were abandoned and resulted in full impairment in both 2015 and 2014. As of July 3, 2015, estimated future amortization expense for intangible assets currently subject to amortization is $95 million for 2016, $64 million for 2017, $20 million for 2018, $11 million for 2019 and $10 million for 2020.

Pensions and Other Post-retirement Benefit Plans

12 Months Ended

Jul. 03, 2015

Compensation and Retirement Disclosure [Abstract]

Pensions and Other Post-retirement Benefit Plans

Note 14. Pensions and Other Post-retirement Benefit Plans

The Company has pension and other post-retirement benefit plans in various countries. The Company’s principal plans are in Japan. All pension and other post-retirement benefit plans outside of the Company’s Japanese plans are immaterial to the Company’s consolidated financial statements.

Obligations and Funded Status

The changes in the benefit obligations and plan assets for the Japanese defined benefit pension plans were as follows for 2015, 2014 and 2013 (in millions):



	2015			2014			2013
Change in benefit obligation:
Benefit obligation at beginning of period	$	255		$	234		$	286
Service cost	9			10			11
Interest cost	4			4			5
Actuarial gain	16			13			(4		)
Benefits paid	(8		)	(7		)	(6		)
Other₍₁₎	—			8			—
Non-U.S. currency movement	(45		)	(7		)	(58		)
Benefit obligation at end of period	231			255			234
Change in plan assets:
Fair value of plan assets at beginning of period	191			167			167
Actual return on plan assets	22			15			29
Employer contributions	14			14			15
Benefits paid	(8		)	(7		)	(6		)
Other₍₁₎	—			7			—
Non-U.S. currency movement	(34		)	(5		)	(38		)
Fair value of plan assets at end of period	185			191			167
Unfunded status at end of year	$	46		$	64		$	67

_____________________


⁽¹⁾	During fiscal 2014 the Japan entity assumed benefit obligations and plan assets from Hitachi. These pension obligations related to former Hitachi employees who were hired into the HGST Japan entity during or soon after the 2012 acquisition of HGST by the Company.

The following table presents the unfunded amounts as recognized on the Company’s consolidated balance sheets as of July 3, 2015 and June 27, 2014 (in millions):



	2015		2014
Current liabilities	$	1	$	1
Non-current liabilities	45		63
Net amount recognized	$	46	$	64

The accumulated benefit obligation for the Japanese defined benefit pension plans was $231 million at July 3, 2015. As of July 3, 2015, net actuarial gains for the Japanese defined benefit pension plans of $5 million are included in accumulated other comprehensive income (loss) in the consolidated balance sheet. There were no prior service credits for the defined benefit pension plans recognized in accumulated other comprehensive income (loss) in the consolidated balance sheet as of July 3, 2015. The amount expected to be amortized into net periodic benefit cost in fiscal 2016 is immaterial to the consolidated financial statements.

Assumptions

Weighted-Average Assumptions

The weighted-average actuarial assumptions used to determine benefit obligations for the Japanese defined benefit pension plans were as follows for 2015, 2014 and 2013:



	2015		2014		2013
Discount rate	1.3	%	1.6	%	1.6	%
Rate of compensation increase	0.9	%	1.0	%	0.9	%

The weighted-average actuarial assumptions used to determine benefit costs for the Japanese defined benefit pension plans were as follows for 2015, 2014 and 2013:



	2015		2014		2013
Discount rate	1.6	%	1.6	%	1.8	%
Expected long-term rate of return on plan assets	3.5	%	3.5	%	3.5	%
Rate of compensation increase	1.0	%	0.9	%	1.2	%

The Company develops a discount rate by calculating when the estimated benefit payments will be due. Management in Japan then matches the benefit payments to AA or higher bond ratings that match the timing of the expected benefit payments to determine the appropriate discount rate.

The Company develops the expected long-term rate of return on plan assets by analyzing rates of return in Japan as well as the investment portfolio applicable to the plan. Management’s estimates of future rates of return on assets is based in large part on the projected rate of return from the respective investment managers using a long-term view of historical returns, as well as actuarial recommendations using the most current generational and mortality tables and rates.

The Company develops the rate of compensation increase assumptions using local compensation practices and historical rates of increases.

Plan Assets

Investment Policies and Strategies

The investment policy in Japan is to generate a stable return on investments over a long-term horizon in order to have adequate pension funds to meet the Company’s future obligations. In order to achieve this investment goal, a diversified portfolio with target asset allocation and expected rate of return is established by considering factors such as composition of participants, level of funded status, capacity to absorb risks, and the current economic environment. The target asset allocation is 35% in equity securities, 62% in debt securities and the remaining 3% in other assets. Risk management is accomplished through diversification, periodic review of plan asset performance, and appropriate realignment of asset allocation. Assumptions regarding the expected long-term rate of return on plan assets are periodically reviewed and are based on the historical trend of returns, the risk and correlation of each asset, and the latest economic environment.

The expected long-term rate of return is estimated based on many factors, including expected forecast for inflation, risk premiums for each asset class, expected asset allocation, current and future financial market conditions, and diversification and rebalancing strategies. Historical return patterns and correlations, consensus return forecasts, and other relevant financial factors are analyzed periodically by the investment advisor so as to ensure that the expected long-term rate of return is reasonable and appropriate.

Fair Value Measurements

The following table presents the Japanese defined benefit pension plans’ major asset categories and their associated fair values as of July 3, 2015 (in millions):



	Level 1		Level 2		Level 3		Total
Equity:
Equity commingled/mutual funds ₍₁₎₍₂₎	$	—	$	65	$	—	$	65
Fixed income:
Fixed income commingled/mutual funds ₍₁₎₍₃₎	—		112		—		112
Cash and short-term investments	6		2		—		8
Fair value of plan assets	$	6	$	179	$	—	$	185

The following table presents the Japanese defined benefit pension plans’ major asset categories and their associated fair values as of June 27, 2014 (in millions):



	Level 1		Level 2		Level 3		Total
Equity:
Equity commingled/mutual funds ₍₁₎₍₂₎	$	—	$	69	$	—	$	69
Fixed income:
Fixed income commingled/mutual funds ₍₁₎₍₃₎	—		111		—		111
Cash and short-term investments	8		3		—		11
Fair value of plan assets	$	8	$	183	$	—	$	191

_______________


⁽¹⁾	Commingled funds represent pooled institutional investments.


⁽²⁾	Equity mutual funds invest primarily in equity securities.


⁽³⁾	Fixed income mutual funds invest primarily in fixed income securities.

Assets held in defined benefit plans in the Philippines, Taiwan and Thailand were less than $1 million and are not presented in the above tables. There were no significant movements of assets between any level categories in 2015, 2014 or 2013.

Fair Value Valuation Techniques

Equity securities are valued at the closing price reported on the stock exchange on which the individual securities are traded. Equity commingled/mutual funds are typically valued using the NAV provided by the investment manager or administrator of the fund. The NAV is based on the value of the underlying assets owned by the fund, minus liabilities and divided by the number of shares or units outstanding. These assets are classified as either Level 1 or Level 2, depending on availability of quoted market prices for identical or similar assets.

If available, fixed income securities are valued using the close price reported on the major market on which the individual securities are traded and are classified as Level 1. The fair value of other fixed income securities is typically estimated using pricing models and quoted prices of securities with similar characteristics, and is generally classified as Level 2.

Cash includes money market accounts that are valued at their cost plus interest on a daily basis, which approximates fair value. Short-term investments represent securities with original maturities of one year or less. These assets are classified as either Level 1 or Level 2.

Cash Flows

Contributions

The Company’s expected employer contributions for 2016 are $9 million for its Japanese defined benefit pension plans.

Estimated Future Benefits Payments

Annual benefit payments from the Japanese defined benefit pension plans are estimated to range from $5 million to $9 million annually over the next five years.

Acquisition

12 Months Ended

Jul. 03, 2015

Business Combinations [Abstract]

Acquisition

Note 15. Acquisitions

The consolidated financial statements include the results of operations of acquired companies commencing after their respective acquisition dates. Disclosed below are those acquisitions which have a significant impact to the Company's consolidated financial statements.

Acquisition of Amplidata

On March 9, 2015, the Company acquired Amplidata NV (“Amplidata”), a developer of object storage software for public and private cloud data centers. As a result of the acquisition, Amplidata was fully integrated into the Company's HGST subsidiary and became a wholly owned indirect subsidiary of the Company. The purchase price of the acquisition was approximately $267 million, consisting of $245 million funded with available cash at the time of the acquisition, $19 million related to the fair value of a previously-held cost method investment and $3 million related to the fair value of stock options assumed. The acquisition is expected to further HGST's strategy to expand into higher value data storage platforms and systems that address the growth in storage requirements in cloud data centers.

The Company identified and recorded the assets acquired and liabilities assumed at their estimated fair values at the date of acquisition, and allocated the remaining value of $215 million to goodwill. The values assigned to the acquired assets and liabilities are based on preliminary estimates of fair value available as of the date of this Annual Report on Form 10-K, and may be adjusted during the measurement period of up to 12 months from the date of the acquisition as further information becomes available with any changes in the fair values potentially resulting in adjustments to goodwill. The individual tangible and intangible assets acquired as well as the liabilities assumed in the acquisition were immaterial to the Company's consolidated financial statements. In addition, pro forma financial information has not been presented as the acquisition did not have a material impact on the Company’s consolidated financial statements for 2015.

The preliminary purchase price allocation for Amplidata is as follows (in millions):



	March 9, 2015
Tangible assets acquired and liabilities assumed	$	(24	)
Intangible assets	76
Goodwill	215
Total	$	267

Since the date of acquisition, the Company recorded an increase of $42 million to goodwill which primarily related to an adjustment to the value of deferred taxes acquired, an adjustment to the value of intangible assets acquired, and an adjustment for the fair value of stock options assumed in the acquisition of Amplidata. The primary area of the preliminary purchase price allocation that is not yet finalized due to information that may become available subsequently is income taxes. Any changes in the fair value could potentially result in adjustments to goodwill. The Company expects to finalize the purchase price allocation in 2016.

The $215 million of goodwill recognized is primarily attributable to the benefits the Company expects to derive from an ability to create HDD storage solutions leveraging the core software acquired and is not expected to be deductible for tax purposes. The impact to revenue and net income attributable to Amplidata was immaterial to the Company’s consolidated financial statements.

Prior to the acquisition date, the Company held a non-controlling interest in Amplidata accounted for under the cost method of accounting. Upon acquiring the outstanding ownership stake in Amplidata, the Company remeasured its original equity interest to its fair value using the income approach, which utilizes estimates of discounted future cash flows, and recognized a $9 million gain during the year ended July 3, 2015, which was recorded within the employee termination benefits, asset impairments and other charges line item in the consolidated statements of income.

Quarterly Results of Operations

12 Months Ended

Jul. 03, 2015

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations

Note 18. Quarterly Results of Operations (unaudited)



	First		Second		Third		Fourth
2015 (1)
Revenue, net	$	3,943	$	3,888	$	3,550	$	3,191
Gross profit	1,149		1,110		1,032		930
Operating income	469		466		421		255
Net income	423		438		384		220
Basic income per common share	$	1.81	$	1.88	$	1.66	$	0.95
Diluted income per common share	$	1.76	$	1.84	$	1.63	$	0.94
2014 (2)
Revenue, net	$	3,804	$	3,972	$	3,703	$	3,651
Gross profit	1,099		1,156		1,076		1,029
Operating income	542		478		419		352
Net income	495		430		375		317
Basic income per common share	$	2.10	$	1.82	$	1.60	$	1.35
Diluted income per common share	$	2.05	$	1.77	$	1.55	$	1.32

_______________

(1)

The first, second, third, and fourth quarters of 2015 included $9 million, $53 million, $10 million, and $104 million, respectively, of employee termination, asset impairment, and other charges. The first and second quarters of 2015 included $14 million and $1 million, respectively, of charges related to interest on an arbitration award. The second quarter of 2015 included a $37 million gain on flood-related insurance recovery.


(2)	The first, second, third and fourth quarters of 2014 included $11 million, $23 million, $25 million and $36 million, respectively, of employee termination, asset impairment and other charges. Each of the four quarters of 2014 included $13 million of charges related to interest on an arbitration award. The first quarter of 2014 included a $65 million gain on flood-related insurance recovery.

Organization and Summary of Significant Accounting Policies (Policies)

12 Months Ended

Jul. 03, 2015

Accounting Policies [Abstract]

Fiscal Year

Basis of Presentation

Cash and Cash Equivalents

Investments

Fair Value of Financial Instruments

Concentration of Credit Risk

Inventories

Property, Plant and Equipment

Goodwill and Other Long-Lived Assets

Revenue and Accounts Receivable

Warranty

Litigation and Other Contingencies

Advertising Expense

Income Taxes

Income Per Common Share

Income per Common Share

The following table illustrates the computation of basic and diluted income per common share (in millions, except per share data):



	Years Ended
	July 3, 2015		June 27, 2014		June 28, 2013
Net income	$	1,465	$	1,617	$	980
Weighted average shares outstanding:
Basic	232		235		241
Employee stock options and other	5		7		5
Diluted	237		242		246
Income per common share:
Basic	$	6.31	$	6.88	$	4.07
Diluted	$	6.18	$	6.68	$	3.98
Anti-dilutive potential common shares excluded*	1		2		3

_______________


*	For purposes of computing diluted income per common share, certain potentially dilutive securities have been excluded from the calculation because their effect would have been anti-dilutive.

Stock-based Compensation

Other Comprehensive Income (Loss)

The following table illustrates the changes in the balances of each component of accumulated comprehensive income for 2015, 2014 and 2013:



	Actuarial Pension Gains (Losses)			Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Foreign Exchange Contracts			Accumulated Other Comprehensive Income (Loss)
Balance at June 29, 2012	$	(3	)	$	4		$	(16	)	$	(15	)
Other comprehensive income before reclassifications	—			—			13			13
Amounts reclassified from accumulated other comprehensive income	14			(4		)	(43		)	(33		)
Net current-period other comprehensive income (loss)	14			(4		)	(30		)	(20		)
Balance at June 28, 2013	$	11		$	—		$	(46	)	$	(35	)
Other comprehensive income before reclassifications	—			—			13			13
Amounts reclassified from accumulated other comprehensive income	(4		)	—			38			34
Net current-period other comprehensive income (loss)	(4		)	—			51			47
Balance at June 27, 2014	$	7		$	—		$	5		$	12
Other comprehensive income before reclassifications	—			—			(74		)	(74		)
Amounts reclassified from accumulated other comprehensive income	(2		)	—			44			42
Net current-period other comprehensive income (loss)	(2		)	—			(30		)	(32		)
Balance at July 3, 2015	$	5		$	—		$	(25	)	$	(20	)

Foreign Exchange Contracts

Pensions and Other Postretirement Benefit Plans

Use of Estimates

Recent Accounting Pronouncements

Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jul. 03, 2015

Accounting Policies [Abstract]

Computation of Basic and Diluted Income Per Common Share

The following table illustrates the computation of basic and diluted income per common share (in millions, except per share data):



	Years Ended
	July 3, 2015		June 27, 2014		June 28, 2013
Net income	$	1,465	$	1,617	$	980
Weighted average shares outstanding:
Basic	232		235		241
Employee stock options and other	5		7		5
Diluted	237		242		246
Income per common share:
Basic	$	6.31	$	6.88	$	4.07
Diluted	$	6.18	$	6.68	$	3.98
Anti-dilutive potential common shares excluded*	1		2		3

_______________


*	For purposes of computing diluted income per common share, certain potentially dilutive securities have been excluded from the calculation because their effect would have been anti-dilutive.

Changes in the Balances of Each Component of Accumulated Comprehensive Income

The following table illustrates the changes in the balances of each component of accumulated comprehensive income for 2015, 2014 and 2013:



	Actuarial Pension Gains (Losses)			Foreign Currency Translation Gains (Losses)			Unrealized Gains (Losses) on Foreign Exchange Contracts			Accumulated Other Comprehensive Income (Loss)
Balance at June 29, 2012	$	(3	)	$	4		$	(16	)	$	(15	)
Other comprehensive income before reclassifications	—			—			13			13
Amounts reclassified from accumulated other comprehensive income	14			(4		)	(43		)	(33		)
Net current-period other comprehensive income (loss)	14			(4		)	(30		)	(20		)
Balance at June 28, 2013	$	11		$	—		$	(46	)	$	(35	)
Other comprehensive income before reclassifications	—			—			13			13
Amounts reclassified from accumulated other comprehensive income	(4		)	—			38			34
Net current-period other comprehensive income (loss)	(4		)	—			51			47
Balance at June 27, 2014	$	7		$	—		$	5		$	12
Other comprehensive income before reclassifications	—			—			(74		)	(74		)
Amounts reclassified from accumulated other comprehensive income	(2		)	—			44			42
Net current-period other comprehensive income (loss)	(2		)	—			(30		)	(32		)
Balance at July 3, 2015	$	5		$	—		$	(25	)	$	(20	)

Commitments and Contingencies (Tables)

12 Months Ended

Jul. 03, 2015

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Payments under Operating

Future minimum lease payments under operating leases that have initial or remaining non-cancelable lease terms in excess of one year at July 3, 2015 are as follows (in millions):



2016	$	40
2017	32
2018	26
2019	23
2020	19
Thereafter	45
Total future minimum payments	$	185

Changes in Warranty Accrual

Changes in the warranty accrual for 2015, 2014 and 2013 were as follows (in millions):



	2015			2014			2013
Warranty accrual, beginning of period	$	182		$	187		$	260
Warranty liabilities assumed as a result of acquisitions	1			4			—
Charges to operations	187			170			178
Utilization	(190		)	(207		)	(221		)
Changes in estimate related to pre-existing warranties	41			28			(30		)
Warranty accrual, end of period	$	221		$	182		$	187

Shareholders' Equity (Tables)

12 Months Ended

Jul. 03, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock Option Activity



	Number of Shares		Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Life (in years)	Aggregate Intrinsic Value
Options outstanding at June 29, 2012	15.8		$	21.89
Granted	3.4		43.51
Exercised	(6.8	)	18.53
Forfeited or expired	(0.5	)	32.72
Options outstanding at June 28, 2013	11.9		$	29.47
Granted	1.6		68.96
Assumed	1.7		38.18
Exercised	(4.5	)	25.22
Forfeited or expired	(0.6	)	67.23
Options outstanding at June 27, 2014	10.1		$	37.03
Granted	1.2		94.10
Assumed	0.1		3.49
Exercised	(4.1	)	31.90
Forfeited or expired	(0.5	)	56.41
Options outstanding at July 3, 2015	6.8		$	50.00	4.3	$	242
Exercisable at July 3, 2015	3.4		$	34.81	3.2	$	161
Vested and expected to vest after July 3, 2015	6.7		$	49.45	4.3	$	241

Options Outstanding and Exercisable Under the Stock Plans

The following table summarizes information about options outstanding and exercisable under the 2004 Performance Incentive Plan as of July 3, 2015 (in millions, except exercise price):



	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number of Shares	Weighted Average Remaining Contractual Life (in years)	Weighted Average Exercise Price		Number of Shares	Weighted Average Exercise Price
$2.99 – $16.85	1.1	4.7	$	11.03	0.7	$	10.57
$17.52 – $29.60	1.3	2.5	27.51		1.2	27.35
$30.06 – $41.75	0.5	2.6	36.56		0.4	35.57
$43.11 – $43.11	1.4	4.0	43.11		0.7	43.11
$48.01 – $68.49	1.1	5.0	66.27		0.3	65.87
$69.29 – $388.77	1.4	6.0	102.96		0.1	148.95
	6.8	4.3	$	50.00	3.4	34.81

Restricted Stock Unit

The following table summarizes RSU activity (in millions, except weighted average grant date fair value):



	Number of Shares		Weighted Average Grant Date Fair Value
RSUs outstanding at June 29, 2012	3.7		$	33.19
Granted	1.7		43.14
Vested	(1.4	)	37.89
Forfeited or expired	(0.4	)	35.46
RSUs outstanding at June 28, 2013	3.6		$	35.82
Granted	1.4		69.08
Assumed	0.2		62.73
Vested	(1.3	)	33.61
Forfeited or expired	(0.2	)	47.62
RSUs outstanding at June 27, 2014	3.7		$	49.77
Granted	1.3		100.13
Vested	(1.7	)	42.24
Forfeited or expired	(0.3	)	67.31
RSUs outstanding at July 3, 2015	3.0		$	73.80
Expected to vest after July 3, 2015	2.9		$	73.28

Fair Value of Stock Options Granted

The fair value of stock options granted during the three years ended July 3, 2015 was estimated using the following weighted average assumptions:



	2015	2014	2013
Suboptimal exercise factor	2.52	2.07	1.90
Range of risk-free interest rates	0.11% to 2.16%	0.10% to 2.44%	0.14% to 1.96%
Range of expected stock price volatility	0.23 to 0.47	0.27 to 0.50	0.36 to 0.53
Weighted average expected volatility	0.36	0.43	0.49
Post-vesting termination rate	1.25%	3.10%	2.16%
Dividend yield	1.69%	1.58%	2.53%
Fair value	$32.19	$24.14	$15.75

Fair Values of All Employee Stock Purchase Plan Rights Granted



	ESPP
	2015	2014	2013
Option life (in years)	1.26	1.24	1.24
Risk-free interest rate	0.45%	0.26%	0.23%
Stock price volatility	0.26	0.31	0.42
Dividend yield	2.34%	1.64%	1.61%
Fair value	$14.50	$14.62	$10.36

Summarizes Table of All Shares of Common Stock Reserved for Issuance

The following table summarizes all shares of common stock reserved for issuance at July 3, 2015 (in millions):



	Number of Shares
Maximum shares issuable in connection with:
Outstanding awards and shares available for award grants	16.6
ESPP	4.8
Total	21.4

Income Taxes (Tables)

12 Months Ended

Jul. 03, 2015

Income Tax Disclosure [Abstract]

Domestic and Foreign Components of Income Before Income Taxes

The domestic and foreign components of income before income taxes were as follows for the three years ended July 3, 2015 (in millions):



	2015		2014		2013
Foreign	$	1,501	$	1,664	$	870
Domestic	76		88		352
Income before income taxes	$	1,577	$	1,752	$	1,222

Components of Provision for Income Taxes

The components of the provision for income taxes were as follows for the three years ended July 3, 2015 (in millions):



	2015			2014			2013
Current:
Foreign	$	54		$	47		$	57
Domestic-federal	43			98			149
Domestic-state	(13		)	3			1
Deferred:
Foreign	12			(3		)	(7		)
Domestic-federal	11			(14		)	(46		)
Domestic-state	5			4			88
Income tax provision	$	112		$	135		$	242

Deferred Tax Assets and Liabilities

Temporary differences and carryforwards, which give rise to a significant portion of deferred tax assets and liabilities as of July 3, 2015 and June 27, 2014 were as follows (in millions):



	2015			2014
Deferred tax assets:
Sales related reserves and accrued expenses not currently deductible	$	50		$	38
Accrued compensation and benefits not currently deductible	138			190
Domestic net operating loss carryforward	137			130
Business credit carryforward	167			155
Long-lived assets	49			58
Other	65			65
Total deferred tax assets	606			636
Deferred tax liabilities:
Long-lived assets	(126		)	(152		)
Other	(10		)	(11		)
Total deferred tax liabilities	(136		)	(163		)
Valuation allowances	(166		)	(128		)
Deferred tax assets, net	$	304		$	345
Deferred tax assets:
Current portion (included in other current assets)	$	167		$	184
Non-current portion (included in other non-current assets)	273			324
Total deferred tax assets	440			508
Deferred tax liabilities:
Current portion (included in other current assets)	(1		)	(2		)
Non-current portion (included in other non-current assets)	(135		)	(161		)
Total deferred tax liabilities	(136		)	(163		)
Deferred tax assets, net	$	304		$	345

U.S. Federal Statutory Rate to Company's Effective Tax Rate

Reconciliation of the U.S. Federal statutory rate to the Company’s effective tax rate is as follows for the three years ended July 3, 2015:



	2015		2014		2013
U.S. Federal statutory rate	35	%	35	%	35	%
Tax rate differential on international income	(29	)	(28	)	(19	)
Tax effect of U.S. permanent differences	1		2		—
State income tax, net of federal tax	—		—		8
Income tax credits	(2	)	(1	)	(4	)
Other	2		—		—
Effective tax rate	7	%	8	%	20	%

Total Amounts of Unrecognized Tax Benefits

The following is a tabular reconciliation of the total amounts of unrecognized tax benefits for the years ended July 3, 2015, June 27, 2014 and June 28, 2013 (in millions):



	2015			2014			2013
Unrecognized tax benefit at beginning of period	$	300		$	240		$	280
Gross increases related to current year tax positions	44			27			29
Gross increases related to prior year tax positions	6			26			10
Gross decreases related to prior year tax positions	—			(5		)	(8		)
Settlements	—			—			(64		)
Lapse of statute of limitations	(3		)	—			(7		)
Acquisitions	3			12			—
Unrecognized tax benefit at end of period	$	350		$	300		$	240

Fair Value Measurements (Tables)

12 Months Ended

Jul. 03, 2015

Fair Value Disclosures [Abstract]

Financial Assets and Liabilities Measured at Fair Value on Recurring Basis



	Fair Value Measurements at Reporting Date Using
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents
Money market funds	$	135	$	—	$	—	$	135
Total cash equivalents	135		—		—		135
Short-term investments:
U.S. Treasury securities	—		50		—		50
U.S. Government agency securities	—		4		—		4
Commercial paper	—		109		—		109
Certificates of deposit	—		99		—		99
Total short-term investments	—		262		—		262
Long-term investments:
U.S. Treasury securities	—		237		—		237
U.S. Government agency securities	—		91		—		91
Total long-term investments	—		328		—		328
Foreign exchange contracts	—		—		—		—
Total assets at fair value	$	135	$	590	$	—	$	725
Liabilities:
Foreign exchange contracts	$	—	$	31	$	—	$	31
Total liabilities at fair value	$	—	$	31	$	—	$	31



	Fair Value Measurements at Reporting Date Using
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents
Money market funds	$	756	$	—	$	—	$	756
Bank acceptances	—		1		—		1
Total cash equivalents	756		1		—		757
Short-term investments:
U.S. Government agency securities	—		53		—		53
Commercial paper	—		165		—		165
Certificates of deposit	—		66		—		66
Total short-term investments	—		284		—		284
Long-term investments:
U.S. Treasury securities	—		180		—		180
U.S. Government agency securities	—		35		—		35
Total long-term investments	—		215		—		215
Foreign exchange contracts	—		7		—		7
Total assets at fair value	$	756	$	507	$	—	$	1,263
Liabilities:
Foreign exchange contracts	$	—	$	2	$	—	$	2
Total liabilities at fair value	$	—	$	2	$	—	$	2

Investments Available-for-Sale Investments (Tables)

12 Months Ended

Jul. 03, 2015

Jun. 27, 2014

Schedule of Available-for-sale Securities [Line Items]

Available-for-sale Securities [Table Text Block]

The following table summarizes, by major type, the fair value and cost basis of the Company’s investments classified as available-for-sale as of July 3, 2015 (in millions):



	Cost Basis		Unrealized Gains (Losses)		Fair Value
Available-for-sale securities:
U.S. Treasury securities	$	287	$	—	$	287
U.S. Government agency securities	95		—		95
Commercial paper	109		—		109
Certificates of deposit	99		—		99
Total	$	590	$	—	$	590

The following table summarizes, by major type, the fair value and cost basis of the Company’s investments classified as available-for-sale as of June 27, 2014 (in millions):



	Cost Basis		Unrealized Gains (Losses)		Fair Value
Available-for-sale securities:
U.S. Treasury securities	$	180	$	—	$	180
U.S. Government agency securities	88		—		88
Commercial paper	165		—		165
Certificates of deposit	66		—		66
Total	$	499	$	—	$	499

Investments Classified by Contractual Maturity Date [Table Text Block]

The fair value of the Company’s investments classified as available-for-sale securities at July 3, 2015, by remaining contractual maturity were as follows (in millions):



	Cost Basis		Fair Value
Due in less than one year (short-term investments)	$	262	$	262
Due in one to five years (included in other non-current assets)	328		328
Total	$	590	$	590

Foreign Exchange Contracts (Tables)

12 Months Ended

Jul. 03, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Value and Balance Sheet Location of Contracts

The fair value and balance sheet location of such contracts were as follows (in millions):



	Asset Derivatives						Liability Derivatives
	2015			2014			2015			2014
Derivatives Designated as Hedging Instruments	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Foreign exchange contracts	Other current assets	$	—	Other current assets	$	7	Accrued expenses	$	31	Accrued expenses	$	2

Offsetting Assets and Liabilities [Table Text Block]



									Gross Amounts Not Offset in the Balance Sheet
Derivatives Designated as Hedging Instruments	Gross Amounts of Recognized Assets (Liabilities)			Gross Amounts Offset in the Balance Sheet		Net Amounts of Assets (Liabilities) Presented in the Balance Sheet			Financial Instruments		Cash Collateral Received or Pledged		Net Amount
Foreign exchange contracts
Financial liabilities	(31		)	—		$	(31	)	—		—		(31		)
Total derivative instruments	$	(31	)	$	—	$	(31	)	$	—	$	—	$	(31	)



										Gross Amounts Not Offset in the Balance Sheet
Derivatives Designated as Hedging Instruments	Gross Amounts of Recognized Assets (Liabilities)			Gross Amounts Offset in the Balance Sheet			Net Amounts of Assets (Liabilities) Presented in the Balance Sheet			Financial Instruments		Cash Collateral Received or Pledged		Net Amount
Foreign exchange contracts
Financial assets	$	9		$	(2	)	$	7		$	—	$	—	$	7
Financial liabilities	(4		)	2			(2		)	—		—		(2		)
Total derivative instruments	$	5		$	—		$	5		$	—	$	—	$	5

Gains (Losses) of Derivatives in Cash Flow Hedging Relationships

The impact on the consolidated financial statements was as follows (in millions):



Derivatives in Cash Flow Hedging Relationships	Amount of Gain (Loss) Recognized in Accumulated Other Comprehensive Income on Derivatives					Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income
Derivatives in Cash Flow Hedging Relationships	2015			2014			2015			2014
Foreign exchange contracts	$	(74	)	$	13	Cost of revenue	$	(44	)	$	(38	)

Other Intangible Assets (Tables)

12 Months Ended

Jul. 03, 2015

Goodwill [Line Items]

Schedule of Goodwill [Table Text Block]

The following table summarizes the activity related to the carrying amount of goodwill:



	Carrying Amount
Balance as of June 28, 2013	$	1,954
Goodwill recorded in connection with acquisitions	605
Balance as of June 27, 2014	$	2,559
Goodwill recorded in connection with acquisitions	207
Balance as of July 3, 2015	$	2,766

Other Intangible Assets

Intangible assets as of July 3, 2015 were as follows:



	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	(in years)	(in millions)		(in millions)		(in millions)
Existing technology	5	$	638	$	471	$	167
Customer relationships	4	152		126		26
Other	3	74		68		6
Leasehold interests	31	39		11		28
In-process research and development	—	105		—		105
Total		$	1,008	$	676	$	332

Intangible assets as of June 27, 2014 were as follows:



	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
	(in years)	(in millions)		(in millions)		(in millions)
Existing technology	5	$	566	$	368	$	198
Customer relationships	4	148		97		51
Other	3	73		55		18
Leasehold interests	32	43		10		33
In-process research and development	—	154		—		154
Total		$	984	$	530	$	454

Pensions and Other Post-retirement Benefit Plans (Tables)

12 Months Ended

Jul. 03, 2015

Compensation and Retirement Disclosure [Abstract]

Obligations and Funded Status

The changes in the benefit obligations and plan assets for the Japanese defined benefit pension plans were as follows for 2015, 2014 and 2013 (in millions):



	2015			2014			2013
Change in benefit obligation:
Benefit obligation at beginning of period	$	255		$	234		$	286
Service cost	9			10			11
Interest cost	4			4			5
Actuarial gain	16			13			(4		)
Benefits paid	(8		)	(7		)	(6		)
Other₍₁₎	—			8			—
Non-U.S. currency movement	(45		)	(7		)	(58		)
Benefit obligation at end of period	231			255			234
Change in plan assets:
Fair value of plan assets at beginning of period	191			167			167
Actual return on plan assets	22			15			29
Employer contributions	14			14			15
Benefits paid	(8		)	(7		)	(6		)
Other₍₁₎	—			7			—
Non-U.S. currency movement	(34		)	(5		)	(38		)
Fair value of plan assets at end of period	185			191			167
Unfunded status at end of year	$	46		$	64		$	67

Unfunded Amounts Recognized on Consolidated Balance Sheets

The following table presents the unfunded amounts as recognized on the Company’s consolidated balance sheets as of July 3, 2015 and June 27, 2014 (in millions):



	2015		2014
Current liabilities	$	1	$	1
Non-current liabilities	45		63
Net amount recognized	$	46	$	64

Weighted-Average Assumptions

The weighted-average actuarial assumptions used to determine benefit obligations for the Japanese defined benefit pension plans were as follows for 2015, 2014 and 2013:



	2015		2014		2013
Discount rate	1.3	%	1.6	%	1.6	%
Rate of compensation increase	0.9	%	1.0	%	0.9	%

The weighted-average actuarial assumptions used to determine benefit costs for the Japanese defined benefit pension plans were as follows for 2015, 2014 and 2013:



	2015		2014		2013
Discount rate	1.6	%	1.6	%	1.8	%
Expected long-term rate of return on plan assets	3.5	%	3.5	%	3.5	%
Rate of compensation increase	1.0	%	0.9	%	1.2	%

Japanese Defined Benefit Pension Plans' Major Asset Categories and Their Associated Fair Values

The following table presents the Japanese defined benefit pension plans’ major asset categories and their associated fair values as of July 3, 2015 (in millions):



	Level 1		Level 2		Level 3		Total
Equity:
Equity commingled/mutual funds ₍₁₎₍₂₎	$	—	$	65	$	—	$	65
Fixed income:
Fixed income commingled/mutual funds ₍₁₎₍₃₎	—		112		—		112
Cash and short-term investments	6		2		—		8
Fair value of plan assets	$	6	$	179	$	—	$	185

The following table presents the Japanese defined benefit pension plans’ major asset categories and their associated fair values as of June 27, 2014 (in millions):



	Level 1		Level 2		Level 3		Total
Equity:
Equity commingled/mutual funds ₍₁₎₍₂₎	$	—	$	69	$	—	$	69
Fixed income:
Fixed income commingled/mutual funds ₍₁₎₍₃₎	—		111		—		111
Cash and short-term investments	8		3		—		11
Fair value of plan assets	$	8	$	183	$	—	$	191

_______________


⁽¹⁾	Commingled funds represent pooled institutional investments.


⁽²⁾	Equity mutual funds invest primarily in equity securities.


⁽³⁾	Fixed income mutual funds invest primarily in fixed income securities.

Employee Termination, Asset Impairment and Other Charges (Tables)

12 Months Ended

Jul. 03, 2015

Postemployment Benefits [Abstract]

Schedule of Restructuring Reserve by Type of Cost [Table Text Block]

Employee termination, asset impairment and other charges within the Company's consolidated statements of income primarily relate to charges to realign the Company's operations with anticipated market demand and are as follows:



	Years Ended
	July 3, 2015		June 27, 2014		June 28, 2013
Employee termination benefits	$	82	$	27	$	109
Impairment of assets	82		62		14
Contract termination and other	12		6		15
Total	$	176	$	95	$	138

Restructuring and Related Costs [Table Text Block]

The following table provides those amounts recorded as liabilities within the Company's consolidated balance sheets:



	June 28, 2013		Accruals		Payments			June 27, 2014		Accruals		Payments			July 3, 2015
Employee termination benefits	$	37	$	27	$	(64	)	$	—	$	82	$	(72	)	$	10

Quarterly Results of Operations (Tables)

12 Months Ended

Jul. 03, 2015

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations



	First		Second		Third		Fourth
2015 (1)
Revenue, net	$	3,943	$	3,888	$	3,550	$	3,191
Gross profit	1,149		1,110		1,032		930
Operating income	469		466		421		255
Net income	423		438		384		220
Basic income per common share	$	1.81	$	1.88	$	1.66	$	0.95
Diluted income per common share	$	1.76	$	1.84	$	1.63	$	0.94
2014 (2)
Revenue, net	$	3,804	$	3,972	$	3,703	$	3,651
Gross profit	1,099		1,156		1,076		1,029
Operating income	542		478		419		352
Net income	495		430		375		317
Basic income per common share	$	2.10	$	1.82	$	1.60	$	1.35
Diluted income per common share	$	2.05	$	1.77	$	1.55	$	1.32

_______________

(1)


(2)	The first, second, third and fourth quarters of 2014 included $11 million, $23 million, $25 million and $36 million, respectively, of employee termination, asset impairment and other charges. Each of the four quarters of 2014 included $13 million of charges related to interest on an arbitration award. The first quarter of 2014 included a $65 million gain on flood-related insurance recovery.

Organization and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Property, Plant and Equipment [Line Items]
trade accounts receivable, factored	$ 269,000,000	$ 187,000,000	$ 148,000,000
Entity Wide Accounts Receivable Major Customer Percentage	30.00%	29.00%
Reserves for potential credit losses	7,000,000	11,000,000
Accounts receivable, net	1,532,000,000	1,989,000,000
Valuation of inventory under FIFO method	96.00%	92.00%
Warranty period for company's product, Minimum	1 year
Warranty period for company's product, Maximum	5 years
Selling, general and administrative expenses included advertising costs	71,000,000	60,000,000	61,000,000
Recognition of liabilities for uncertain tax positions description	greater than 50%
Maturity dates of foreign exchange contract	12 months
Notional amounts	$ 1,300,000,000	$ 1,500,000,000
Minimum [Member] \| Building [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	15 years
Minimum [Member] \| Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Maximum [Member] \| Building [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	30 years
Maximum [Member] \| Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	7 years

Organization and Summary of Significant Accounting Policies - Computation of Basic and Diluted Income Per Common Share (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jul. 03, 2015	Apr. 03, 2015	Jan. 02, 2015	Oct. 03, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 27, 2013	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Earnings Per Share [Abstract]
Net income	$ 220	$ 384	$ 438	$ 423	$ 317	$ 375	$ 430	$ 495	$ 1,465	$ 1,617	$ 980
Weighted average shares outstanding:
Basic (in shares)									232	235	241
Employee stock options and other									5	7	5
Diluted (in shares)									237	242	246
Income (loss) per common share:
Basic (in dollars per share)	$ 0.95	$ 1.66	$ 1.88	$ 1.81	$ 1.35	$ 1.60	$ 1.82	$ 2.10	$ 6.31	$ 6.88	$ 4.07
Diluted (in dollars per share)	$ 0.94	$ 1.63	$ 1.84	$ 1.76	$ 1.32	$ 1.55	$ 1.77	$ 2.05	$ 6.18	$ 6.68	$ 3.98
Anti-dilutive potential common shares excluded									1	2	3

Organization and Summary of Significant Accounting Policies - Changes in the Balances of Each Component of Accumulated Comprehensive Income (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), beginning balance	$ 12	$ (35)	$ (15)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(74)	13	13
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	42	34	(33)
Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss)	(32)	47	(20)
Accumulated Other Comprehensive Income (Loss), ending balance	(20)	12	(35)
Accumulated Defined Benefit Plans Adjustment [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), beginning balance	7	11	(3)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(2)	(4)	14
Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss)	(2)	(4)	14
Accumulated Other Comprehensive Income (Loss), ending balance	5	7	11
Accumulated Translation Adjustment [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), beginning balance	0	0	4
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0	(4)
Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss)	0	0	(4)
Accumulated Other Comprehensive Income (Loss), ending balance	0	0	0
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), beginning balance	5	(46)	(16)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(74)	13	13
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	44	38	(43)
Other Comprehensive Income (Loss), Accumulated Other Comprehensive Income (Loss)	(30)	51	(30)
Accumulated Other Comprehensive Income (Loss), ending balance	$ (25)	$ 5	$ (46)

Supplemental Financial Statement Data - Inventories and Property, Plant and Equipment (Detail) (USD $) In Millions, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014
Inventories:
Raw materials and component parts	$ 168	$ 168
Work-in-process	500	493
Finished goods	700	565
Total inventories	1,368	1,226
Property, plant and equipment:
Total property, plant and equipment	8,604	8,123
Accumulated depreciation	(5,639)	(4,830)
Property, plant and equipment, net	2,965	3,293
Land and Buildings [Member]
Property, plant and equipment:
Total property, plant and equipment	1,441	1,364
Machinery and Equipment [Member]
Property, plant and equipment:
Total property, plant and equipment	6,520	6,109
Furniture and Fixtures [Member]
Property, plant and equipment:
Total property, plant and equipment	71	54
Leasehold Improvements [Member]
Property, plant and equipment:
Total property, plant and equipment	276	254
Construction-in-Process [Member]
Property, plant and equipment:
Total property, plant and equipment	$ 296	$ 342

Debt - Long-Term Debt (Detail) (USD $) In Millions, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014
Debt Disclosure [Abstract]
Debt Instrument, Interest Rate, Effective Percentage	1.70%
Term loan	$ 2,312	$ 2,438
Less amounts due in one year	(156)	(125)
Long-term debt	$ 2,156	$ 2,313

Debt - Additional Information (Detail) (USD $)	12 Months Ended
Debt - Additional Information (Detail) (USD $)	Jul. 03, 2015	Jun. 27, 2014
Debt Instrument [Line Items]
Loan period	5 years
Total unsecured loan under credit facility	$ 4,000,000,000
Line of credit facility additional borrowing capacity	1,000,000,000.0
Interest rate of borrowing under credit facility	1.70%
Term loan	2,312,000,000	2,438,000,000
2016	156,000,000
2017	219,000,000
2018	250,000,000
2019	1,700,000,000
Short-term Debt	255,000,000	0
Sublimit for Letters of Credit Under Revolving Credit Facility	100,000,000
Sublimit for Swing Line Loans Under Revolving Credit Facility	50,000,000
Term Loan Facility [Member]
Debt Instrument [Line Items]
Total unsecured loan under credit facility	2,500,000,000.0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility revolving loan	$ 1,500,000,000.0

Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Commitments and Contingencies Disclosure [Abstract]
Operating leases consist of leased property that expire at various dates	various dates through 2025
Rental expense	$ 60	$ 59	$ 64
Accrued warranty included in other liabilities	71	63
2016	117
2017	15
2018	5
2019	$ 3

Commitments and Contingencies - Future Minimum Lease Payments under Operating Leases (Detail) (USD $) In Millions, unless otherwise specified	Jul. 03, 2015
Commitments and Contingencies Disclosure [Abstract]
Operating, 2016	$ 40
Operating, 2017	32
Operating, 2018	26
Operating, 2019	23
Operating, 2020	19
Operating, Thereafter	45
Operating, Total future minimum payments	$ 185

Commitments and Contingencies - Changes in Accrual Warranty (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Commitments and Contingencies Disclosure [Abstract]
Warranty accrual, beginning of period	$ 182	$ 187	$ 260
Warranty liabilities assumed as a result of acquisitions	1	4	0
Charges to operations	187	170	178
Utilization	(190)	(207)	(221)
Changes in estimate related to pre-existing warranties	41	28	(30)
Warranty accrual, end of period	$ 221	$ 182	$ 187

Legal Proceedings - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended						12 Months Ended
	Jan. 02, 2015	Oct. 03, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 27, 2013	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013	Dec. 23, 2014	Oct. 14, 2014	Jan. 23, 2012
Commitments and Contingencies Disclosure [Abstract]
Amount of total award issued by the arbitrator												$ 630.4
Arbitration award accrual	1	14	13	13	13	13	15	52	681
Accrued arbitration award			758				0	758
Final Arbitration Award											773.4
Disputed Post Award Interest										29
Loss Contingency, Range of Possible Loss, Maximum							$ 95

Business Segment, Geographic Information and Major Customers - Summarize Table of Operations by Geographic Area (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Jul. 03, 2015	Apr. 03, 2015	Jan. 02, 2015	Oct. 03, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 27, 2013	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Net revenue:
Revenue, net	$ 3,191	$ 3,550	$ 3,888	$ 3,943	$ 3,651	$ 3,703	$ 3,972	$ 3,804	$ 14,572	$ 15,130	$ 15,351
Long-lived assets:
Long-lived assets	6,664				6,779				6,664	6,779	6,438
United States [Member]
Net revenue:
Revenue, net									3,054	3,013	3,403
Long-lived assets:
Long-lived assets	2,465				2,415				2,465	2,415	1,517
China [Member]
Net revenue:
Revenue, net									2,726	3,499	4,145
Long-lived assets:
Long-lived assets	218				279				218	279	348
Asia [Member]
Net revenue:
Revenue, net									4,552	4,756	4,129
Long-lived assets:
Long-lived assets	3,655				4,002				3,655	4,002	4,434
Europe Middle East And Africa [Member]
Net revenue:
Revenue, net									3,169	3,117	3,056
Long-lived assets:
Long-lived assets	326				83				326	83	139
Other [Member]
Net revenue:
Revenue, net									$ 1,071	$ 745	$ 618

Business Segment, Geographic Information and Major Customers - Additional Information (Detail)	12 Months Ended
	Jul. 03, 2015 customer	Jun. 27, 2014 customer	Jun. 28, 2013 customer
Concentration Risk [Line Items]
Number of Operating Segments	2
Number of Reportable Segments	1
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member] \| Hewlett Packard Company [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	11.00%	11.00%
Customer Concentration Risk [Member] \| Sales Revenue, Net [Member] \| Top Ten Customers [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	44.00%	44.00%	44.00%
Concentration risk, number	10	10	10

Western Digital Corporation 401(k) Plan - Additional Information (Detail) (USD $)	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Compensation and Retirement Disclosure [Abstract]
Terms of employer contribution	The Company has adopted the Western Digital Corporation 401(k) Plan (the “Plan”). The Plan covers substantially all domestic employees, subject to certain eligibility requirements. The Company makes a basic matching contribution on behalf of each participating eligible employee equal to fifty percent (50%) of the eligible participant’s pre-tax contributions for the contribution cycle not to exceed 5% of the eligible participant’s compensation; provided, however, that each eligible participant shall receive a minimum annual basic matching contribution equal to fifty percent (50%) of the first $4,000 of pre-tax contributions for any calendar year.
Defined contribution plan, employer matching contribution, percent	50.00%
Maximum percentage of compensation eligible for employer match	5.00%
Matching contribution of first amount	$ 4,000
Eligible compensation percentage	5.00%
Minimum amount of matching annual contribution	2.50%
Company contributions vest period	5 years
Company contributions	$ 22,000,000	$ 21,000,000	$ 19,000,000

Shareholders' Equity - Additional Information (Detail) (USD $)	12 Months Ended							12 Months Ended				12 Months Ended		1 Months Ended	3 Months Ended	12 Months Ended			1 Months Ended	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013	Feb. 03, 2015	Nov. 08, 2012	Nov. 07, 2012	May 21, 2012	Jul. 03, 2015 Restricted Stock Units (RSUs) [Member]	Jun. 27, 2014 Restricted Stock Units (RSUs) [Member]	Jun. 28, 2013 Restricted Stock Units (RSUs) [Member]	Jun. 29, 2012 Restricted Stock Units (RSUs) [Member]	Jul. 03, 2015 Minimum [Member]	Jul. 03, 2015 Maximum [Member]	Aug. 13, 2015 Subsequent Event [Member]	Oct. 02, 2015 Subsequent Event [Member]	Jul. 03, 2015 Treasury Stock [Member]	Jun. 27, 2014 Treasury Stock [Member]	Jun. 28, 2013 Treasury Stock [Member]	Aug. 13, 2015 Treasury Stock [Member] Subsequent Event [Member]	Jul. 03, 2015 Dividends Accrued in 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding restricted stock or other awards								3,000,000	3,700,000	3,600,000	3,700,000
Vesting periods of RSUs												1 year	4 years
Authorized number of share of common stock for awards grant under Performance Incentive Plan	48,800,000
Share issued in respect of any other type of award granted under the plan					1.72	1.35
Eligible employee payroll deduction amount for ESPP	up to 10%
Percentage of market value for purchases with in ESPP	at 95%
Employee Stock Purchase Plan offering period	24 months
Expenses on stock-based compensation	$ 74,000,000	$ 85,000,000	$ 88,000,000
Stock-based compensation expense tax benefit	19,000,000	22,000,000	25,000,000
Total compensation cost related to unvested stock options and ESPP rights issued	96,000,000
Weighted average service period	1 year 11 months 23 days
Restricted stock number of share granted								1,300,000	1,400,000	1,700,000
Expense related to the vesting of Restricted Stock unit awards	88,000,000	71,000,000	52,000,000
Tax benefit realized related to RSU	24,000,000	18,000,000	14,000,000
Unamortized fair value of all unvested Restricted Stock Unit awards	119,000,000
Weighted average vesting period	1 year 3 months 18 days
Recognized in expenses related to adjustment to market value and vesting of SARs assumed	3,000,000	36,000,000	46,000,000
Tax benefit realized related to SARs	0	7,000,000	4,000,000
Total liability related to SARs	41,000,000
Options outstanding to purchase shares with exercise price below company stock price	5,500,000
Options outstanding to purchase shares with exercise price below company stock price, intrinsic value	242,000,000
Aggregate intrinsic value of options exercised under the Company's stock option plan	283,000,000	247,000,000	211,000,000
Aggregate value of restricted stock awards vested	170,000,000	89,000,000	71,000,000
Grant-date fair value of the shares underlying the RSU awards	125,000,000	95,000,000	74,000,000
Number of assumed SARs outstanding	600,000
Stock Appreciation Right outstanding, weighted average exercise price	$ 7.92
Weighted average expected term of the Company's stock options	5 years 9 months 11 days	5 years	4 years
Additional common stock authorized for repurchase				2,000,000,000			3,000,000,000
Company repurchased shares of its common stock																9,600,000			700,000
Repurchase of common stock	970,000,000	816,000,000	842,000,000											60,000,000		970,000,000	816,000,000	842,000,000
Remaining amount available under repurchase program		2,200,000,000
Cash dividends declared per share	$ 1.80														$ 0.50
Total common stock dividends	418,000,000
Common stock dividends paid	302,000,000
Payments of dividends																				$ 94,000,000

Shareholders' Equity - Stock Option Activity (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Options outstanding, Beginning Balance, Number of Shares	10.1	11.9	15.8
Granted, Number of Shares	1.2	1.6	3.4
Assumed, Number of Shares	0.1	1.7
Exercised, Number of Shares	(4.1)	(4.5)	(6.8)
Forfeited or expired, Number of Shares	(0.5)	(0.6)	(0.5)
Options outstanding, Ending Balance, Number of Shares	6.8	10.1	11.9
Exercisable at July 3, 2015, Number of Shares	3.4
Vested and expected to vest after July 3, 2015, Number of Shares	6.7
Options outstanding, Beginning Balance, Weighted Average Exercise Price Per Share	$ 37.03	$ 29.47	$ 21.89
Granted, Weighted Average Exercise Price Per Share	$ 94.10	$ 68.96	$ 43.51
Assumed, Weighted Average Exercise Price Per Share	$ 3.49	$ 38.18
Exercised, Weighted Average Exercise Price Per Share	$ 31.90	$ 25.22	$ 18.53
Forfeited or expired, Weighted Average Exercise Price Per Share	$ 56.41	$ 67.23	$ 32.72
Options outstanding, Ending Balance, Weighted Average Exercise Price Per Share	$ 50.00	$ 37.03	$ 29.47
Exercisable at July 3, 2015, Weighted Average Exercise Price Per Share	$ 34.81
Vested and expected to vest after July 3, 2015, Weighted Average Exercise Price Per Share	$ 49.45
Options outstanding at July 3, 2015, Weighted Average Remaining Contractual Life (in years)	4 years 3 months 26 days
Exercisable at July 3, 2015, Weighted Average Remaining Contractual Life (in years)	3 years 2 months 12 days
Vested and expected to vest after July 3, 2015, Weighted Average Remaining Contractual Life (in years)	4 years 3 months 18 days
Options outstanding at July 3, 2015, Aggregate Intrinsic Value	$ 242
Exercisable at July 3, 2015, Aggregate Intrinsic Value	161
Vested and expected to vest after July 3, 2015, Aggregate Intrinsic Value	$ 241

Shareholders' Equity - Options Outstanding and Exercisable Under the Stock Plans (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Jul. 03, 2015
Options Outstanding, Number of Shares	6.8
Options Outstanding, Weighted Average Remaining Contractual Life	4 years 4 months
Options Outstanding, Weighted Average Exercise Price	$ 50.00
Options Exercisable, Number of Shares	3.4
Options Exercisable, Weighted Average Exercise Price	$ 34.81
$2.99 - $16.85 [Member]
Range of Exercise Prices Lower limit	$ 2.99
Range of Exercise Prices Upper limit	$ 16.85
Options Outstanding, Number of Shares	1.1
Options Outstanding, Weighted Average Remaining Contractual Life	4 years 8 months
Options Outstanding, Weighted Average Exercise Price	$ 11.03
Options Exercisable, Number of Shares	0.7
Options Exercisable, Weighted Average Exercise Price	$ 10.57
$17.52 - $29.60 [Member]
Range of Exercise Prices Lower limit	$ 17.52
Range of Exercise Prices Upper limit	$ 29.60
Options Outstanding, Number of Shares	1.3
Options Outstanding, Weighted Average Remaining Contractual Life	2 years 6 months
Options Outstanding, Weighted Average Exercise Price	$ 27.51
Options Exercisable, Number of Shares	1.2
Options Exercisable, Weighted Average Exercise Price	$ 27.35
$30.06 - $41.75 [Member]
Range of Exercise Prices Lower limit	$ 30.06
Range of Exercise Prices Upper limit	$ 41.75
Options Outstanding, Number of Shares	0.5
Options Outstanding, Weighted Average Remaining Contractual Life	2 years 6 months 19 days
Options Outstanding, Weighted Average Exercise Price	$ 36.56
Options Exercisable, Number of Shares	0.4
Options Exercisable, Weighted Average Exercise Price	$ 35.57
$43.11 - $43.11 [Member]
Range of Exercise Prices Lower limit	$ 43.11
Range of Exercise Prices Upper limit	$ 43.11
Options Outstanding, Number of Shares	1.4
Options Outstanding, Weighted Average Remaining Contractual Life	4 years
Options Outstanding, Weighted Average Exercise Price	$ 43.11
Options Exercisable, Number of Shares	0.7
Options Exercisable, Weighted Average Exercise Price	$ 43.11
$48.01 - $68.49 [Member]
Range of Exercise Prices Lower limit	$ 48.01
Range of Exercise Prices Upper limit	$ 68.49
Options Outstanding, Number of Shares	1.1
Options Outstanding, Weighted Average Remaining Contractual Life	5 years
Options Outstanding, Weighted Average Exercise Price	$ 66.27
Options Exercisable, Number of Shares	0.3
Options Exercisable, Weighted Average Exercise Price	$ 65.87
$69.29 - $388.77 [Member]
Range of Exercise Prices Lower limit	$ 69.29
Range of Exercise Prices Upper limit	$ 388.77
Options Outstanding, Number of Shares	1.4
Options Outstanding, Weighted Average Remaining Contractual Life	6 years
Options Outstanding, Weighted Average Exercise Price	$ 102.96
Options Exercisable, Number of Shares	0.1
Options Exercisable, Weighted Average Exercise Price	$ 148.95

Shareholders' Equity - Restricted Stock Units (Detail) (Restricted Stock Units (RSUs) [Member], USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Numbers of Shares, Beginning Balance	3.7	3.6	3.7
Restricted stock, Number of Share, Granted	1.3	1.4	1.7
Restricted stock, Number of Share, Assumed		0.2
Restricted stock, Number of Share, Vested	(1.7)	(1.3)	(1.4)
Restricted Stock, Number of Shares, Canceled or Expired	(0.3)	(0.2)	(0.4)
Numbers of Shares, Ending Balance	3.0	3.7	3.6
Restricted Stock, Number of Shares, Expected to vest after July 3, 2015	2.9
Weighted Average Grant Date Fair Value Per Share, Beginning Balance	$ 49.77	$ 35.82	$ 33.19
Restricted stock, Granted, Weighted Average Grant Date Fair Value Per Share	$ 100.13	$ 69.08	$ 43.14
Restricted stock, Assumed, Weighted Average Grant Date Fair Value Per Share		$ 62.73
Restricted stock, Vested, Weighted Average Grant Date Fair Value Per Share	$ 42.24	$ 33.61	$ 37.89
Restricted stock, Forfeited or expired, Weighted Average Grant Date Fair Value Per Share	$ 67.31	$ 47.62	$ 35.46
Weighted Average Grant Date Fair Value Per Share, Ending Balance	$ 73.80	$ 49.77	$ 35.82
Weighted Average Grant Date Fair Value Per Share, Expected to vest after July 3, 2015	$ 73.28

Shareholders' Equity - Fair Value of Stock Options Granted (Detail) (USD $)	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Suboptimal exercise factor	2.52	2.07	1.90
Risk-free interest rates, minimum	0.11%	0.10%	0.14%
Risk-free interest rates, maximum	2.16%	2.44%	1.96%
Expected stock price volatility, minimum	0.23%	0.27%	0.36%
Expected stock price volatility, maximum	0.47%	0.50%	0.53%
Weighted average expected volatility	0.36%	0.43%	0.49%
Post-vesting termination rate	1.25%	3.10%	2.16%
Dividend yield	1.69%	1.58%	2.53%
Fair value	$ 32.19	$ 24.14	$ 15.75

Shareholders' Equity - Fair Values of All Employee Stock Purchase Plan Rights Granted (Detail) (USD $)	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option life (in years)	5 years 9 months 11 days	5 years	4 years
Dividend yield	1.69%	1.58%	2.53%
Fair value	$ 32.19	$ 24.14	$ 15.75
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option life (in years)	1 year 3 months 4 days	1 year 2 months 27 days	1 year 2 months 27 days
Risk-free interest rate	0.45%	0.26%	0.23%
Stock price volatility	0.26%	0.31%	0.42%
Dividend yield	2.34%	1.64%	1.61%
Fair value	$ 14.50	$ 14.62	$ 10.36

Income Taxes - Components of Provision for Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Current:
Foreign	$ 54	$ 47	$ 57
Domestic-federal	43	98	149
Domestic-state	(13)	3	1
Deferred:
Foreign	12	(3)	(7)
Domestic-federal	11	(14)	(46)
Domestic-state	5	4	88
Income tax provision	$ 112	$ 135	$ 242

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013	Jun. 29, 2012
Income Tax Disclosure [Abstract]
Amount of tax benefit to be recognized	$ 27,000,000		$ 37,000,000
Charge related to passage of California Proposition 39			88,000,000
Net undistributed earnings from foreign subsidiaries	9,400,000,000
Tax liability for undistributed earnings	3,100,000,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	38,000,000	5,000,000
Net Operating Loss benefits related to stock-based compensation deductions	90,000,000	11,000,000
Benefit Generated From Stock-Based Compensation	97,000,000
Excess tax benefits from employee stock plans	19,000,000	60,000,000	45,000,000
Expiration date of tax holidays in Malaysia, Philippines, Singapore and Thailand	2016 through 2025
Tax holidays and incentives increase net earnings	641,000,000	905,000,000	899,000,000
Tax holidays and incentives increase net earnings, shares	$ 2.70	$ 3.74	$ 3.65
Federal net operating loss carryforwards	515,000,000
State net operating loss carryforwards	422,000,000
Federal and state tax credit carryforwards	417,000,000
NOL carryforwards available to offset future federal taxable income expiration period	2021 to 2035
NOL Carryforwards available to offset future state taxable income expiration period	2020 to 2035
Credit carryforwards available to offset future taxable income	100,000,000
Credit carryforwards available to offset future taxable income expiration period	2017 to 2035
Reduction in ultimately realized amount of HGSTs NOL	39,000,000
Reduction in ultimately realized amount of credits	25,000,000
Unrecognized tax benefits	$ 350,000,000	$ 300,000,000	$ 240,000,000	$ 280,000,000

Income Taxes - Deferred Tax Assets and Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014
Deferred tax assets:
Sales related reserves and accrued expenses not currently deductible	$ 50	$ 38
Accrued compensation and benefits not currently deductible	138	190
Domestic net operating loss carryforward	137	130
Business credit carryforward	167	155
Long-lived assets	49	58
Other	65	65
Total deferred tax assets	606	636
Deferred tax liabilities:
Long-lived assets	(126)	(152)
Other	(10)	(11)
Total deferred tax liabilities	(136)	(163)
Valuation allowances (included in non-current portion of deferred tax assets)	(166)	(128)
Deferred tax assets, net	304	345
Deferred tax assets:
Current portion (included in other current assets)	167	184
Non-current portion (included in other non-current assets)	273	324
Total deferred tax assets	440	508
Deferred tax liabilities:
Current portion (included in other current assets)	(1)	(2)
Non-current portion (included in other non-current assets)	(135)	(161)
Total deferred tax liabilities	(136)	(163)
Deferred tax assets, net	$ 304	$ 345

Income Taxes - U.S. Federal Statutory Rate to Company's Effective Tax Rate (Detail)	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Income Tax Disclosure [Abstract]
U.S. Federal statutory rate	35.00%	35.00%	35.00%
Tax rate differential on international income	(29.00%)	(28.00%)	(19.00%)
Tax effect of U.S. permanent differences	1.00%	2.00%	0.00%
State income tax, net of federal tax	0.00%	0.00%	8.00%
Income tax credits	(2.00%)	(1.00%)	(4.00%)
Other	2.00%	0.00%	0.00%
Effective tax rate	7.00%	8.00%	20.00%

Income Taxes - Total Amounts of Unrecognized Tax Benefits (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefit at beginning of period	$ 300	$ 240	$ 280
Gross increases related to current year tax positions	44	27	29
Gross increases related to prior year tax positions	6	26	10
Gross decreases related to prior year tax positions	0	(5)	(8)
Settlements	0	0	(64)
Lapse of statute of limitations	(3)	0	(7)
Increases as a result of acquisitions	3	12	0
Unrecognized tax benefit at end of period	350	300	240
Minimum [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Estimated additional federal tax expense as a result of examination	72
Maximum [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Estimated additional federal tax expense as a result of examination	$ 723

Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts		$ 7
Foreign exchange contracts	31	2
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	135	757
Short-term investments	262	284
Long-term investments	328	215
Total assets at fair value	725	1,263
Total liabilities fair value	31	2
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	135	756
Short-term investments	0	0
Long-term investments	0	0
Total assets at fair value	135	756
Total liabilities fair value	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	1
Short-term investments	262	284
Long-term investments	328	215
Total assets at fair value	590	507
Total liabilities fair value	31	2
Fair Value, Measurements, Recurring [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	0
Short-term investments	0	0
Long-term investments	0	0
Total assets at fair value	0	0
Total liabilities fair value	0	0
Fair Value, Measurements, Recurring [Member] \| Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	135	756
Fair Value, Measurements, Recurring [Member] \| Money Market Funds [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	135	756
Fair Value, Measurements, Recurring [Member] \| Money Market Funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	0
Fair Value, Measurements, Recurring [Member] \| Money Market Funds [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	0
Fair Value, Measurements, Recurring [Member] \| Bank Acceptances [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents		1
Fair Value, Measurements, Recurring [Member] \| Bank Acceptances [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents		0
Fair Value, Measurements, Recurring [Member] \| Bank Acceptances [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents		1
Fair Value, Measurements, Recurring [Member] \| Bank Acceptances [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents		0
Fair Value, Measurements, Recurring [Member] \| U.S. Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	50
Long-term investments	237	180
Fair Value, Measurements, Recurring [Member] \| U.S. Treasury Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0
Long-term investments	0	0
Fair Value, Measurements, Recurring [Member] \| U.S. Treasury Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	50
Long-term investments	237	180
Fair Value, Measurements, Recurring [Member] \| U.S. Treasury Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0
Long-term investments	0	0
Fair Value, Measurements, Recurring [Member] \| U.S. Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	4	53
Long-term investments	91	35
Fair Value, Measurements, Recurring [Member] \| U.S. Government Agency Securities [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Long-term investments	0	0
Fair Value, Measurements, Recurring [Member] \| U.S. Government Agency Securities [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	4	53
Long-term investments	91	35
Fair Value, Measurements, Recurring [Member] \| U.S. Government Agency Securities [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Long-term investments	0	0
Fair Value, Measurements, Recurring [Member] \| Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	109	165
Fair Value, Measurements, Recurring [Member] \| Commercial Paper [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Fair Value, Measurements, Recurring [Member] \| Commercial Paper [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	109	165
Fair Value, Measurements, Recurring [Member] \| Commercial Paper [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Fair Value, Measurements, Recurring [Member] \| Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	99	66
Fair Value, Measurements, Recurring [Member] \| Certificates of Deposit [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Fair Value, Measurements, Recurring [Member] \| Certificates of Deposit [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	99	66
Fair Value, Measurements, Recurring [Member] \| Certificates of Deposit [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	0	0
Fair Value, Measurements, Recurring [Member] \| Foreign Exchange Contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts	0	7
Foreign exchange contracts	31	2
Fair Value, Measurements, Recurring [Member] \| Foreign Exchange Contracts [Member] \| Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts	0	0
Foreign exchange contracts	0	0
Fair Value, Measurements, Recurring [Member] \| Foreign Exchange Contracts [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts	0	7
Foreign exchange contracts	31	2
Fair Value, Measurements, Recurring [Member] \| Foreign Exchange Contracts [Member] \| Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign exchange contracts	0	0
Foreign exchange contracts	$ 0	$ 0

Investments Available-for-Sale Investments - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014
Schedule of Available-for-sale Securities [Line Items]
Cost basis	$ 590	$ 499
Unrealized gain (loss)	0	0
Fair value	590	499
Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis	262
Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value	262
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	328
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	328
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis	590
Available-for-sale Securities, Debt Securities	590
U.S. Government Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost basis	95	88
Unrealized gain (loss)	0	0
Fair value	95	88
U.S. Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost basis	287	180
Unrealized gain (loss)	0	0
Fair value	287	180
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost basis	109	165
Unrealized gain (loss)	0	0
Fair value	109	165
Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost basis	99	66
Unrealized gain (loss)	0	0
Fair value	$ 99	$ 66

Foreign Exchange Contracts Foreign Exchange Contracts - Offsetting Assets and Liabilities (Details) (USD $) In Millions, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Asset, Fair Value, Gross Asset		$ 9
Derivative Asset, Fair Value, Amount Offset		(2)
Derivative Asset		7
Derivative Asset, Financial Instruments Subject To Master Netting Arrangement, Elected Not To Be Offset		0
Derivative, Collateral, Obligation to Return Cash		0
Derivative Asset, Fair Value, Amount Offset Against Collateral		7
Derivative Liability, Fair Value, Gross Liability	(31)	(4)
Derivative Liability, Fair Value, Amount Offset	0	2
Derivative Liability	(31)	(2)
Derivative Liability, Financial Instruments Subject to Master Netting Arrangement, Elected Not to Be Offset	0	0
Derivative, Collateral, Right to Reclaim Cash	0	0
Derivative Liability, Fair Value, Amount Offset Against Collateral	31	2
Derivative, Fair Value, Gross	(31)	5
Derivative, Fair Value, Amount Offset	0	0
Derivative Assets (Liabilities), at Fair Value, Net	(31)	5
Derivative Financial Instruments Subject To Master Netting Arrangement, Elected Not To Be Offset	0	0
Derivative Collateral Obligation To Return Cash or Right To Reclaim Cash	0	0
Derivative, Fair Value, Amount Offset Against Collateral, Net	$ (31)	$ 5

Foreign Exchange Contracts - Additional Information (Detail) (USD $)	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Contract maturity dates	Less than 12 months	Less than 12 months
Unrealized gains expected to be reclassified into earnings	$ 26,000,000
Foreign exchange contracts opened during the period by company	4,600,000,000	4,500,000,000
Foreign exchange contracts closed during the period by company	$ 4,800,000,000	$ 4,900,000,000

Other Intangible Assets - Other Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,008	$ 984
Accumulated Amortization	676	530
Net Carrying Amount	332	454
Existing Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period	5 years 0 months	5 years 0 months
Gross Carrying Amount	638	566
Accumulated Amortization	471	368
Net Carrying Amount	167	198
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period	4 years 0 months	4 years 0 months
Gross Carrying Amount	152	148
Accumulated Amortization	126	97
Net Carrying Amount	26	51
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period	3 years 0 months	3 years 0 months
Gross Carrying Amount	74	73
Accumulated Amortization	68	55
Net Carrying Amount	6	18
Leasehold Interests [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period	31 years 0 months	32 years 0 months
Gross Carrying Amount	39	43
Accumulated Amortization	11	10
Net Carrying Amount	28	33
In-Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period	0 years	0 years
Gross Carrying Amount	105	154
Accumulated Amortization	0	0
Net Carrying Amount	$ 105	$ 154

Other Intangible Assets - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense for intangible assets	$ 171	$ 213	$ 209
Impairment of Intangible Assets, Finite-lived	39	53
Estimated future amortization in, 2016	95
Estimated future amortization in, 2017	64
Estimated future amortization in, 2018	20
Estimated future amortization in, 2019	11
Estimated future amortization in, 2020	$ 10

Pensions and Other Post-retirement Benefit Plans - Obligations and Funded Status (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Change in plan assets:
Employer contributions	$ 22	$ 21	$ 19
Japan Pension Benefits [Member]
Change in benefit obligation:
Benefit obligation at beginning of period	255	234	286
Service cost	9	10	11
Interest cost	4	4	5
Actuarial gain	16	13	(4)
Benefits paid	(8)	(7)	(6)
Defined Benefit Plan, Other Changes	0	8	0
Non-U.S. currency movement	(45)	(7)	(58)
Benefit obligation at end of period	231	255	234
Change in plan assets:
Fair value of plan assets at beginning of period	191	167	167
Actual return on plan assets	22	15	29
Employer contributions	14	14	15
Benefits paid	(8)	(7)	(6)
Other Changes In Plan Assets	0	7	0
Non-U.S. currency movement	(34)	(5)	(38)
Fair value of plan assets at end of period	185	191	167
Unfunded status at end of year	$ 46	$ 64	$ 67

Pensions and Other Post-retirement Benefit Plans - Unfunded Amounts Recognized on Consolidated Balance Sheets (Detail) (Japan Pension Benefits [Member], USD $) In Millions, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014
Japan Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Current liabilities	$ 1	$ 1
Non-current liabilities	45	63
Net amount recognized	$ 46	$ 64

Pensions and Other Post-retirement Benefit Plans - Weighted-Average Actuarial Assumptions used to Determine Benefit Costs (Detail) (Japan Pension Benefits [Member])	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Japan Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate	1.60%	1.60%	1.80%
Expected long-term rate of return on plan assets	3.50%	3.50%	3.50%
Rate of compensation increase	1.00%	0.90%	1.20%

Pensions and Other Post-retirement Benefit Plans - Japanese Defined Benefit Pension Plans' Major Asset Categories and Their Associated Fair Values (Detail) (Japan Pension Benefits [Member], USD $) In Millions, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013	Jun. 29, 2012
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 185	$ 191	$ 167	$ 167
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6	8
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	179	183
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0
Equity commingled/mutual funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	65	69
Equity commingled/mutual funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	65	69
Fixed income commingled/mutual funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	112	111
Fixed income commingled/mutual funds [Member] \| Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	112	111
Cash and short-term investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	8	11
Cash and short-term investments [Member] \| Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6	8
Cash and short-term investments [Member] \| Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 2	$ 3

Pensions and Other Post-retirement Benefit Plans - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation for all defined benefit pension plans	$ 231
Actuarial pension gains (losses)	(2)	(4)	14
Prior service credits for defined benefit pension plans included in accumulated other comprehensive income at the balance sheet date	0
Assets held in defined benefit plans in the Philippines, Taiwan and Thailand	1
Defined benefit pension plan, estimated	5 years
Japan Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Actuarial pension gains (losses)	5
Expected contribution for pension plan	9
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation for securities	35.00%
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation for securities	62.00%
Other Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Target asset allocation for securities	3.00%
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan expected future benefit payments annual range	5
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan expected future benefit payments annual range	$ 9

Acquisition - Additional Information (Detail) (USD $) In Millions, unless otherwise specified				0 Months Ended	3 Months Ended	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013	Mar. 09, 2015 Amplidata [Member]	Apr. 03, 2015 Amplidata [Member]	Jul. 03, 2015 Amplidata [Member]	Mar. 09, 2015 Amplidata [Member]
Business Acquisition [Line Items]
Purchase price of acquisition				$ 267
Consideration transferred, cash				245
Fair value of previously-held cost method investment				19
Consideration transferred, stock options assumed				3
Value allocated to goodwill	2,766	2,559	1,954				215
Net increase (decrease) in goodwill						42
Remeasurement gain					$ 9

Acquisition - Purchase Price Allocation (Detail) (USD $) In Millions, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013	Mar. 09, 2015 Amplidata [Member]
Business Acquisition [Line Items]
Tangible assets acquired and liabilities assumed				$ (24)
Intangible assets				76
Goodwill	2,766	2,559	1,954	215
Total				$ 267

Employee Termination, Asset Impairment and Other Charges - Schedule of Employee Termination Benefits and Other Charges (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Severance And Other Charges [Line Items]
Restructuring Costs	$ 176	$ 95	$ 138
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginning balance	0	37
Restructuring Charges	82	27
Payments for Restructuring	(72)	(64)
Restructuring Reserve, ending balance	10	0	37
One-time Termination Benefits [Member]
Severance And Other Charges [Line Items]
Restructuring Costs	82	27	109
Impairment of Assets [Member]
Severance And Other Charges [Line Items]
Restructuring Costs	82	62	14
Contract and Other Termination Costs [Member]
Severance And Other Charges [Line Items]
Restructuring Costs	$ 12	$ 6	$ 15

Quarterly Results of Operations - Quarterly Results of Operations (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jul. 03, 2015	Apr. 03, 2015	Jan. 02, 2015	Oct. 03, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 27, 2013	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Quarterly Financial Information Disclosure [Abstract]
Revenue, net	$ 3,191	$ 3,550	$ 3,888	$ 3,943	$ 3,651	$ 3,703	$ 3,972	$ 3,804	$ 14,572	$ 15,130	$ 15,351
Gross profit	930	1,032	1,110	1,149	1,029	1,076	1,156	1,099	4,221	4,360	4,363
Operating income (loss)	255	421	466	469	352	419	478	542	1,611	1,791	1,266
Net income (loss)	$ 220	$ 384	$ 438	$ 423	$ 317	$ 375	$ 430	$ 495	$ 1,465	$ 1,617	$ 980
Basic income (loss) per common share	$ 0.95	$ 1.66	$ 1.88	$ 1.81	$ 1.35	$ 1.60	$ 1.82	$ 2.10	$ 6.31	$ 6.88	$ 4.07
Diluted income (loss) per common share	$ 0.94	$ 1.63	$ 1.84	$ 1.76	$ 1.32	$ 1.55	$ 1.77	$ 2.05	$ 6.18	$ 6.68	$ 3.98

Quarterly Results of Operations - Quarterly Results of Operations (Detail 2) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Jul. 03, 2015	Apr. 03, 2015	Jan. 02, 2015	Oct. 03, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 27, 2013	Sep. 27, 2013	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Quarterly Financial Information Disclosure [Abstract]
Employee termination, asset impairment and other charges	$ 104	$ 10	$ 53	$ 9	$ 36	$ 25	$ 23	$ 11	$ 176	$ 95	$ 138
Charges related to arbitration award			1	14	13	13	13	13	15	52	681
Charge related to passage of California Proposition 39											88
Gain On Insurance Recovery			$ 37					$ 65	$ 37	$ 65	$ 0

Consolidated Valuation and Qualifying Accounts (Detail) (Allowance for Doubtful Accounts [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jun. 28, 2013
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning balance	$ 11	$ 9	$ 9
Additions charged to operations		3	8
Deductions	(4)	(1)	(10)
Recovery			2
Ending balance	$ 7	$ 11	$ 9

Thailand Flooding	12 Months Ended
Thailand Flooding	Jul. 03, 2015
Extraordinary and Unusual Items [Abstract]
Thailand Flooding	Note 16. Thailand Flooding In October 2011, severe flooding in Thailand inundated all of the Company’s Thailand manufacturing facilities and submerged certain equipment located there. The Company maintains insurance coverage that provides property and business interruption coverage in the event of losses arising from flooding. As a result, the Company recorded $37 million and $65 million of flood-related insurance recoveries in fiscal 2015 and 2014, respectively. These flood-related insurance recoveries were included within the selling, general and administrative expenses within the Company's consolidated statements of income. All flood-related claims submitted by the Company to its insurers were closed as of July 3, 2015.

Shareholders' Equity - Summarizes Table of All Shares of Common Stock Reserved for Issuance (Detail) In Millions, unless otherwise specified	Jul. 03, 2015
Stockholders Equity Note [Line Items]
Share of common stock reserve for issuance	21.4
Outstanding Awards and Shares Available for Award [Member]
Stockholders Equity Note [Line Items]
Share of common stock reserve for issuance	16.6
ESPP [Member]
Stockholders Equity Note [Line Items]
Share of common stock reserve for issuance	4.8

Foreign Exchange Contracts - Gains (Losses) of Derivatives in Cash Flow Hedging Relationships (Detail) (Foreign Exchange Contracts [Member], Cash Flow Hedging [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Jul. 03, 2015	Jun. 27, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Accumulated OCI on Derivatives	$ (74)	$ 13
Cost of Revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified From Accumulated OCI into Income	$ (44)	$ (38)

Fair Value Measurements - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 27, 2014
Fair Value Disclosures [Abstract]
Proceeds from Sale of Other Investments	$ 17
Gain (Loss) on Sale of Other Investments	$ 3

Foreign Exchange Contracts - Fair Value and Balance Sheet Location of Contracts (Detail) (USD $) In Millions, unless otherwise specified	Jul. 03, 2015	Jun. 27, 2014
Derivatives, Fair Value [Line Items]
Derivative Asset		$ 7
Derivative Liability	31	2
Other Current Assets [Member] \| Designated as Hedging Instrument [Member] \| Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset	0	7
Accrued Expenses [Member] \| Designated as Hedging Instrument [Member] \| Foreign Exchange Contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability	$ 31	$ 2