Document and Entity Information	9 Months Ended
Document and Entity Information	Apr. 03, 2015	May 06, 2015
Document Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 03, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Trading Symbol	WDC
Entity Registrant Name	WESTERN DIGITAL CORP
Entity Central Index Key	0000106040
Current Fiscal Year End Date	--07-03
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		230,912,060

CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jun. 27, 2014
Current assets:
Cash and cash equivalents	$ 4,812	$ 4,804
Short-term investments	228	284
Accounts receivable, net	1,696	1,989
Inventories	1,322	1,226
Other current assets	371	417
Total current assets	8,429	8,720
Property, plant and equipment, net	3,051	3,293
Goodwill	2,745	2,559
Other intangible assets, net	400	454
Other non-current assets	551	473
Total assets	15,176	15,499
Current liabilities:
Accounts payable	2,020	1,971
Accrued arbitration award	0	758
Accrued expenses	503	412
Accrued compensation	398	460
Accrued warranty	156	119
Current portion of long-term debt	141	125
Total current liabilities	3,218	3,845
Long-term debt	2,203	2,313
Other liabilities	529	499
Total liabilities	5,950	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 - 232 and 234 shares, respectively	3	3
Additional paid-in capital	2,369	2,331
Accumulated other comprehensive income (loss)	(3)	12
Retained earnings	9,004	8,066
Treasury stock - common shares at cost; 29 and 27 shares, respectively	(2,147)	(1,570)
Total shareholders' equity	9,226	8,842
Total liabilities and shareholders' equity	$ 15,176	$ 15,499

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Apr. 03, 2015	Jun. 27, 2014
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, authorized	5,000,000	5,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	450,000,000	450,000,000
Common stock, issued	261,000,000	261,000,000
Common stock, outstanding	231,000,000	234,000,000
Treasury stock, shares	30,000,000	27,000,000

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Apr. 03, 2015	Mar. 28, 2014
Income Statement [Abstract]
Revenue, net	$ 3,550	$ 3,703	$ 11,381	$ 11,479
Cost of revenue	2,518	2,627	8,090	8,148
Gross margin	1,032	1,076	3,291	3,331
Operating expenses:
Research and development	402	418	1,265	1,235
Selling, general and administrative	199	201	583	559
Charges related to arbitration award	0	13	15	39
Employee termination, asset impairment and other charges	10	25	72	59
Total operating expenses	611	657	1,935	1,892
Operating income	421	419	1,356	1,439
Other income (expense):
Interest and other income	3	4	11	10
Interest and other expense	(12)	(17)	(37)	(44)
Total other expense, net	(9)	(13)	(26)	(34)
Income before income taxes	412	406	1,330	1,405
Income tax provision	28	31	85	105
Net income	$ 384	$ 375	$ 1,245	$ 1,300
Income per common share:
Basic	$ 1.66	$ 1.60	$ 5.34	$ 5.51
Diluted	$ 1.63	$ 1.55	$ 5.23	$ 5.37
Weighted average shares outstanding:
Basic	231	235	233	236
Diluted	236	242	238	242

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Apr. 03, 2015	Mar. 28, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 384	$ 375	$ 1,245	$ 1,300
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on cash flow hedges	29	45	(15)	31
Other comprehensive income (loss)	29	45	(15)	31
Total comprehensive income	$ 413	$ 420	$ 1,230	$ 1,331

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	9 Months Ended
	Apr. 03, 2015	Mar. 28, 2014
Cash flows from operating activities
Net income	$ 1,245	$ 1,300
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	864	936
Stock-based compensation	117	125
Deferred income taxes	9	(66)
Gain from insurance recovery	(37)	(65)
Loss on disposal of assets	14	33
Non-cash portion of employee termination benefits, asset impairment and other charges	12	26
Other Operating Activities, Cash Flow Statement	0	4
Changes in:
Accounts receivable, net	294	12
Inventories	(96)	(51)
Accounts payable	8	(113)
Accrued arbitration award	(758)	39
Accrued expenses	83	(19)
Accrued compensation	(63)	(44)
Other assets and liabilities	62	(13)
Net cash provided by operating activities	1,754	2,104
Cash flows from investing activities
Purchases of property, plant and equipment	(456)	(467)
Proceeds from Sale of Property, Plant, and Equipment	7	0
Proceeds from Sale and Maturity of Other Investments	665	0
Purchases of investments	(687)	(470)
Acquisitions, net of cash acquired	(247)	(823)
Payments for (Proceeds from) Other Investing Activities	6	4
Net cash used in investing activities	(712)	(1,756)
Cash flows from financing activities
Issuance of stock under employee stock plans	146	125
Taxes paid on vested stock awards under employee stock plans	(61)	(27)
Excess tax benefits from employee stock plans	27	41
Repurchases of common stock	(772)	(544)
Dividends to shareholders	(280)	(189)
Proceeds from Debt, Net of Issuance Costs	0	2,992
Repayment of debt	(94)	(2,486)
Net cash provided by (used in) financing activities	(1,034)	(88)
Net increase (decrease) in cash and cash equivalents	8	260
Cash and cash equivalents, beginning of period	4,804	4,309
Cash and cash equivalents, end of period	4,812	4,569
Supplemental disclosure of cash flow information:
Cash paid (received) for income taxes	39	138
Cash paid for interest	33	35
Supplemental disclosure of non-cash financing activities:
Accrual of cash dividend declared	$ 116	$ 71

Basis of Presentation	9 Months Ended
Basis of Presentation	Apr. 03, 2015
Accounting Policies [Abstract]
Basis of Presentation	1. Basis of Presentation The accounting policies followed by Western Digital Corporation (the “Company”) are set forth in Part II, Item 8, Note 1 of the Notes to Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended June 27, 2014. In the opinion of management, all adjustments necessary to fairly state the unaudited condensed consolidated financial statements have been made. All such adjustments are of a normal, recurring nature. Certain information and footnote disclosures normally included in the consolidated financial statements prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended June 27, 2014. The results of operations for interim periods are not necessarily indicative of results to be expected for the full year. The Company's fiscal year ends on the Friday nearest to June 30 and typically consists of 52 weeks. Approximately every six years, the Company reports a 53-week fiscal year to align its fiscal year with the foregoing policy. The Company's fiscal third quarters ended April 3, 2015 and March 28, 2014 both consisted of 13 weeks. Fiscal year 2015 will be comprised of 53 weeks and will end on July 3, 2015. 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.

Supplemental Financial Statement Data

9 Months Ended

Apr. 03, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Supplemental Financial Statement Data

2. Supplemental Financial Statement Data

Inventories; Property, Plant and Equipment; and Other Intangible Assets



	April 3, 2015			June 27, 2014
	(in millions)
Inventories:
Raw materials and component parts	$	173		$	168
Work-in-process	498			493
Finished goods	651			565
Total inventories	$	1,322		$	1,226
Property, plant and equipment:
Property, plant and equipment	$	8,520		$	8,123
Accumulated depreciation	(5,469		)	(4,830		)
Property, plant and equipment, net	$	3,051		$	3,293
Other intangible assets:
Other intangible assets	$	1,067		$	984
Accumulated amortization	(667		)	(530		)
Other intangible assets, net	$	400		$	454

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. Changes in the warranty accrual were as follows (in millions):



	Three Months Ended						Nine Months Ended
	April 3, 2015			March 28, 2014			April 3, 2015			March 28, 2014
Warranty accrual, beginning of period	$	222		$	190		$	182		$	187
Warranty liability assumed as a result of acquisition	1			—			1			4
Charges to operations	46			41			145			125
Utilization	(47		)	(56		)	(140		)	(162		)
Changes in estimate related to pre-existing warranties	(1		)	(2		)	33			19
Warranty accrual, end of period	$	221		$	173		$	221		$	173

The long-term portion of the warranty accrual classified in other liabilities was $65 million as of April 3, 2015 and $63 million as of June 27, 2014.

Investments

The following table summarizes, by major type, the fair value and cost basis of the Company’s investments as of April 3, 2015 (in millions):



	Cost Basis		Unrealized Gains (Losses)		Fair Value
Available-for-sale securities:
U.S. Treasury securities	$	204	$	—	$	204
U.S. Government agency securities	116		—		116
Commercial paper	154		—		154
Certificates of deposit	48		—		48
Total	$	522	$	—	$	522

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



	Cost Basis		Fair Value
Due in less than one year (short-term investments):	$	228	$	228
Due in one to five years (included in other non-current assets):	294		294
Total	$	522	$	522

The following table summarizes, by major type, the fair value and cost basis of the Company’s investments 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 as of June 27, 2014, by remaining contractual maturity, were as follows (in millions):



	Cost Basis		Fair Value
Due in less than one year (short-term investments):	$	284	$	284
Due in one to five years (included in other non-current assets):	215		215
Total	$	499	$	499

The Company determined no available-for-sale securities were other-than-temporarily impaired in the three and nine months ended April 3, 2015. For more information on the Company's available-for-sale securities, see Note 7 below.

In addition, the Company enters into certain strategic investments for the promotion of business and strategic objectives. These strategic investments are recorded at cost as a component of the other non-current assets line item within the condensed consolidated balance sheets and were not material to the condensed consolidated financial statements as of April 3, 2015 and June 27, 2014.

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. There were no unrealized gains or losses on the Company's available-for-sale securities or actuarial gains and losses related to pensions in both the nine months ended April 3, 2015 and March 28, 2014. In addition, the income tax impact on components of other comprehensive income (loss) is immaterial for all periods presented.

The following table illustrates the changes in the balances of each component of accumulated other comprehensive income (loss) for the nine months ended April 3, 2015 (in millions):



	Actuarial Pension Gain		Unrealized Gain (Loss) on Foreign Exchange Contracts			Accumulated Other Comprehensive Income (Loss)
Balance at June 27, 2014	$	7	$	5		$	12
Other comprehensive income (loss) before reclassifications	—		(39		)	(39		)
Amounts reclassified from accumulated other comprehensive income (loss)	—		24			24
Net current-period other comprehensive income (loss)	—		(15		)	(15		)
Balance at April 3, 2015	$	7	$	(10	)	$	(3	)

The following table illustrates the changes in the balances of each component of accumulated other comprehensive income (loss) for the nine months ended March 28, 2014 (in millions):



	Actuarial Pension Gain		Unrealized Gain (Loss) on Foreign Exchange Contracts			Accumulated Other Comprehensive Income (Loss)
Balance at June 28, 2013	$	11	$	(46	)	$	(35	)
Other comprehensive income (loss) before reclassifications	—		2			2
Amounts reclassified from accumulated other comprehensive income (loss)	—		29			29
Net current-period other comprehensive income (loss)	—		31			31
Balance at March 28, 2014	$	11	$	(15	)	$	(4	)

Income per Common Share

9 Months Ended

Apr. 03, 2015

Earnings Per Share [Abstract]

Income per Common Share

3. 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):



	Three Months Ended				Nine Months Ended
	April 3, 2015		March 28, 2014		April 3, 2015		March 28, 2014
Net income	$	384	$	375	$	1,245	$	1,300
Weighted average shares outstanding:
Basic	231		235		233		236
Employee stock options and other	5		7		5		6
Diluted	236		242		238		242
Income per common share:
Basic	$	1.66	$	1.60	$	5.34	$	5.51
Diluted	$	1.63	$	1.55	$	5.23	$	5.37
Anti-dilutive potential common shares excluded*	1		2		1		1



*	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.

Debt	9 Months Ended
Debt	Apr. 03, 2015
Debt Disclosure [Abstract]
Debt	4. Debt On January 9, 2014, Western Digital Ireland, Ltd. (“WDI”) used existing cash to repay the outstanding term loan balance of $1.8 billion under its previous credit agreement, dated March 8, 2012. Also on January 9, 2014, the Company, Western Digital Technologies, Inc. (“WDT”) and 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. As of April 3, 2015, no amounts were outstanding under the revolving credit facility and the term loan facility had an outstanding balance of $2.3 billion and a variable interest rate of 1.68%. The Company is required to make quarterly principal payments on the term loan facility totaling $31 million for the remainder of fiscal 2015, $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. As of April 3, 2015, the Company was in compliance with all covenants.

Legal Proceedings	9 Months Ended
Legal Proceedings	Apr. 03, 2015
Commitments and Contingencies Disclosure [Abstract]
Legal Proceedings	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. 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. 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. WD and HGST intend to continue to defend themselves vigorously in this matter. On August 1, 2011, plaintiff Guzik Technical Enterprises (“Guzik”) filed a complaint in the Northern District of California against WD and various of its subsidiaries alleging infringement of U.S. Patent Nos. 6,023,145 and 6,785,085, breach of contract and misappropriation of trade secrets. The complaint sought injunctive relief and unspecified monetary damages, fees and costs. The patents asserted by Guzik allegedly related to devices used to test hard disk drive heads and media. On November 30, 2013, WD entered into a settlement agreement for an amount that is not material to the Company’s financial position, results of operations or cash flows, for which the Company recorded an accrual. Guzik disputed the enforceability of the agreement and on December 27, 2013, WD filed a motion to enforce the agreement. The Court granted WD’s motion to enforce the settlement agreement on March 21, 2014. On April 14, 2014, Guzik filed a Notice of Appeal with the Federal Circuit. On January 9, 2015, the Federal Circuit affirmed the Court’s decision granting WD’s motion to enforce the settlement agreement. This matter is now resolved. 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 alleges that WD products (including hard disk drive heads, head gimbal assemblies, head stack assemblies and SSDs) infringe 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. The complaint seeks an injunction, unspecified monetary damages, interests, fees and costs. The Company intends to defend itself vigorously in this matter. On October 20, 2014, plaintiff SOTA Semiconductor LLC (“SOTA”) filed a complaint in the Central District of California against the Company, Marvell Semiconductor, Inc., Belkin International, Inc., Dell Inc., Hewlett-Packard Company, Hisense USA Corp., Konica Minolta Business Solutions U.S.A., Inc., Lenovo (United States) Inc., Netgear, Inc., Samsung Electronics America, Inc., and Seagate Technology LLC, alleging infringement of U.S. Patent No. 5,991,545. SOTA alleged that the Company’s devices that incorporate Marvell Thumb Processors, including WD’s My Cloud EX2 network attached storage devices, which include model numbers WDBVKW0080JCH, WDBVKW0060JCH, WDBVKW0040JCH and WDBVKW0000NCH, infringe the ’545 patent. The complaint sought unspecified monetary damages, interest, fees, costs and expenses. On December 12, 2014, the Company filed an answer and counterclaims to SOTA’s complaint. On February 23, 2015, the Court dismissed the action against the Company with prejudice. This matter is now resolved. Seagate Matter On October 4, 2006, plaintiff Seagate Technology LLC ("Seagate") filed an action in the District Court of Hennepin County, Minnesota, naming as defendants WD and one of its now former employees previously employed by Seagate. The complaint in the action alleged claims based on misappropriation of trade secrets and sought injunctive relief and unspecified monetary damages, interest, fees and costs. On June 19, 2007, WD’s former employee filed a demand for arbitration with the American Arbitration Association. On January 23, 2012, the arbitrator issued a total final award, including pre-award interest of $630.4 million. On January 23, 2012, WD filed a petition in the District Court of Hennepin County, Minnesota to have the final arbitration award vacated, and, on October 12, 2012, the District Court of Hennepin County, Minnesota vacated, in full, the $630.4 million final arbitration award, ordering that a rehearing be held concerning the alleged trade secret claims before a new arbitrator. Seagate appealed the District Court decision to the Minnesota Court of Appeals. On July 22, 2013, the Minnesota Court of Appeals reversed the District Court’s decision and remanded for entry of an order and judgment confirming the arbitration award. On August 20, 2013, the Company filed a petition for review with the Minnesota Supreme Court and, on October 15, 2013, the Minnesota Supreme Court granted the Company’s petition. On October 8, 2014, the Minnesota Supreme Court affirmed the decision of the Minnesota Court of Appeals. Because the Minnesota Supreme Court’s decision is not subject to appeal, 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 13, 2014. This amount was paid during the quarter ended January 2, 2015 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 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, respectively. 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 $90 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.

Income Taxes	9 Months Ended
Income Taxes	Apr. 03, 2015
Income Tax Disclosure [Abstract]
Income Taxes	6. Income Taxes The Company’s income tax provision for the three and nine months ended April 3, 2015 was $28 million and $85 million, respectively, as compared to $31 million and $105 million in the respective prior-year periods. The Company's tax provision for the nine months ended April 3, 2015 reflects a tax benefit of $16 million resulting from the retroactive extension of the U.S. Federal R&D tax credit that was signed into law on December 19, 2014. The differences between the effective tax rate and the U.S. Federal statutory rate are primarily due to tax holidays in Malaysia, the Philippines, Singapore and Thailand that expire at various dates from 2015 through 2025 and the current year generation of income tax credits. In the three months ended April 3, 2015, the Company recorded a net increase of $16 million in its liability for unrecognized tax benefits. In the nine months ended April 3, 2015, the Company recorded a net increase of $32 million in its liability for unrecognized tax benefits. As of April 3, 2015, the Company's liability for unrecognized tax benefits was approximately $332 million. Interest and penalties recognized on such amounts were not material to the condensed consolidated financial statements during the three and nine months ended April 3, 2015. The Internal Revenue Service (“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 will be addressed in conjunction with the IRS’s examination of the Company’s fiscal years 2008 and 2009, which commenced in January 2012. In addition, in January 2012, the IRS commenced an examination of the 2007 fiscal period ended September 5, 2007 of Komag, Incorporated, which was acquired by the Company on September 5, 2007. The Company anticipates that the IRS fieldwork will be completed in the first quarter of fiscal year 2016. With respect to the 2008 and 2009 audit, the Company received a notice of proposed adjustment from the IRS relating to intercompany payable balances. The proposed adjustments to income before income taxes relating to intercompany payable balances for fiscal years 2006, 2007, 2008 and 2009 total approximately $200 million. The Company disagrees with the proposed adjustments, believes that its tax position is properly supported and will vigorously contest the position taken by the IRS. 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 audits cannot be predicted with certainty. If any issues addressed in the Company’s tax audits 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 April 3, 2015, it was 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

9 Months Ended

Apr. 03, 2015

Fair Value Disclosures [Abstract]

Fair Value Measurements

7. 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 April 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	$	758	$	—	$	—	$	758
Total cash equivalents	758		—		—		758
Short-term investments:
U.S. Government agency securities	—		26		—		26
Commercial paper	—		154		—		154
Certificates of deposit	—		48		—		48
Total short-term investments	—		228		—		228
Long-term investments:
U.S. Treasury securities	—		204		—		204
U.S. Government agency securities	—		90		—		90
Total long-term investments	—		294		—		294
Foreign exchange contracts	—		2		—		2
Total assets at fair value	$	758	$	524	$	—	$	1,282
Liabilities:
Foreign exchange contracts	$	—	$	17	$	—	$	17
Total liabilities at fair value	$	—	$	17	$	—	$	17

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 and are recorded within cash and cash equivalents in the condensed consolidated balance sheets. 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 and recorded within short-term investments in the condensed consolidated balance sheets. Certificates of deposit are valued using fixed interest rates.

Commercial Paper. The Company’s commercial paper securities are investment grade debt issued by corporations which are held in custody by a third party with original maturities of twelve months or less and are recorded within cash and cash equivalents or short-term investments in the condensed consolidated balance sheets depending on their original maturities. 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 and recorded within cash and cash equivalents, short-term investments or other non-current assets in the condensed consolidated balance sheets depending on their original maturities. 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, are held in custody by a third party and are recorded within other non-current assets in the condensed consolidated balance sheets. 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 and recorded within cash and cash equivalents in the condensed consolidated balance sheets. 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 condensed 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 condensed consolidated balance sheets. For more information on the Company's foreign exchange contracts, see Note 8. 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.

The carrying amounts of cash, accounts receivable, accounts payable and accrued expenses approximate fair value for all periods presented because of the short-term maturity of these assets and liabilities. The carrying amount of debt approximates fair value because of its variable interest rate.

Foreign Exchange Contracts

9 Months Ended

Apr. 03, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Foreign Exchange Contracts

8. 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 exchange 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. These 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. As of April 3, 2015, the Company had outstanding 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.

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), net of tax. 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 to the condensed consolidated financial statements for the three and nine months ended April 3, 2015 and March 28, 2014.

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 cost of revenue or operating expenses, depending on the nature of the underlying hedged item. All fair value hedges were determined to be effective as of April 3, 2015 and June 27, 2014. The changes in fair value on these contracts were immaterial to the condensed consolidated financial statements during the three and nine months ended April 3, 2015 and March 28, 2014.

As of April 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 $10 million. In addition, as of April 3, 2015, the Company did not have any foreign exchange contracts with credit-risk-related contingent features. The Company opened $1.5 billion and $3.5 billion, and closed $1.3 billion and $3.5 billion, in foreign exchange contracts in the three and nine months ended April 3, 2015, respectively. In addition, the Company opened $1.0 billion and $3.7 billion, and closed $1.2 billion and $3.8 billion, in foreign exchange contracts in the three and nine months ended March 28, 2014, respectively. The fair value and balance sheet location of the Company's foreign exchange contracts as of April 3, 2015 and June 27, 2014 were as follows (in millions):

Asset Derivatives

Liability Derivatives

April 3, 2015

June 27, 2014

April 3, 2015

June 27, 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

Accrued expenses

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 condensed consolidated balance sheet as of April 3, 2015 (in millions):



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
Foreign exchange contracts
Financial assets	$	6		$	(4	)	$	2
Financial liabilities	(21		)	4			(17		)
Total derivative instruments	$	(15	)	$	—		$	(15	)



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
Foreign exchange contracts
Financial assets	$	9		$	(2	)	$	7
Financial liabilities	(4		)	2			(2		)
Total derivative instruments	$	5		$	—		$	5

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



	Amount of Gain (Loss) Recognized in Accumulated OCI on Derivatives									Location of Gain (Loss) Reclassified from Accumulated OCI into Income	Amount of Gain (Loss) Reclassified From Accumulated OCI into Income
Derivatives in Cash Flow Hedging Relationships	Three Months Ended		Nine Months Ended			Three Months Ended		Nine Months Ended			Three Months Ended			Nine Months Ended			Three Months Ended			Nine Months Ended
Derivatives in Cash Flow Hedging Relationships	April 3, 2015					March 28, 2014					April 3, 2015						March 28, 2014
Foreign exchange contracts	$	19	$	(39	)	$	13	$	2	Cost of revenue	$	(10	)	$	(24	)	$	(32	)	$	(29	)

The total net realized transaction and foreign exchange contract currency gains and losses were not material to the condensed consolidated financial statements during the three and nine months ended April 3, 2015 and March 28, 2014.

Stock-Based Compensation

9 Months Ended

Apr. 03, 2015

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

Stock-Based Compensation

9. Stock-Based Compensation

Stock-Based Compensation Expense

During the three and nine months ended April 3, 2015, the Company recognized in expense $17 million and $53 million, respectively, for stock-based compensation related to the vesting of options issued under the Company’s stock plans and the ESPP, as compared to $24 million and $69 million in the respective prior-year periods. The tax benefit realized as a result of the aforementioned stock-based compensation expense was $8 million and $20 million in the three and nine months ended April 3, 2015, respectively, as compared to $6 million and $17 million in the three and nine months ended March 28, 2014, respectively. As of April 3, 2015, total compensation cost related to unvested stock options and ESPP rights issued to employees but not yet recognized was $111 million and will be amortized on a straight-line basis over a weighted average service period of approximately 2.1 years.

During the three and nine months ended April 3, 2015, the Company recognized in expense $21 million and $64 million, respectively, for stock-based compensation related to the vesting of awards of RSUs and performance stock unit awards, issued under the Company's stock plans, as compared to $17 million and $56 million in the respective prior-year periods. The tax benefit realized as a result of the aforementioned stock-based compensation expense was $6 million and $17 million in the three and nine months ended April 3, 2015, respectively, as compared to $5 million and $14 million in the three and nine months ended March 28, 2014, respectively. As of April 3, 2015, the aggregate unamortized fair value of all unvested RSUs was $141 million, which will be recognized on a straight-line basis over a weighted average vesting period of approximately 1.5 years.

During the three and nine months ended April 3, 2015, the Company recognized a $9 million benefit and $3 million expense, respectively, related to adjustments to market value as well as the vesting of stock appreciation rights (“SARs”), as compared to $11 million expense and $35 million expense in the respective prior-year periods. The tax expense and tax benefit realized as a result of the aforementioned SARs expense was $2 million and $1 million in the three and nine months ended April 3, 2015, respectively, as compared to a $2 million benefit and $7 million benefit in the three and nine months ended March 28, 2014, respectively. The SARs will be settled in cash upon exercise. As a result, the Company had a total liability of $50 million related to SARs included in accrued expenses in the condensed consolidated balance sheet as of April 3, 2015. As of April 3, 2015, all SARs issued to employees were fully vested and are now solely subject to market price fluctuations.

Stock Option Activity

The following table summarizes stock option activity under the Company’s stock option plans (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 27, 2014	10.1		$	37.03
Granted	1.2		100.06
Exercised	(1.3	)	31.04
Options outstanding at October 3, 2014	10.0		45.16
Exercised	(1.1	)	32.14
Canceled or expired	(0.1	)	32.53
Options outstanding at January 2, 2015	8.8		47.01
Assumed in acquisition	0.1		3.49
Exercised	(1.0	)	32.26
Canceled or expired	(0.2	)	58.23
Options outstanding at April 3, 2015	7.7		$	48.48	4.5	$	358
Exercisable at April 3, 2015	3.5		$	34.15	3.2	$	215
Vested and expected to vest after April 3, 2015	7.6		$	47.91	4.5	$	355

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 April 3, 2015, the Company had options outstanding to purchase an aggregate of 6.4 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 $358 million at that date. During the three and nine months ended April 3, 2015, the aggregate intrinsic value of options exercised under the Company’s stock option plans was $73 million and $236 million, respectively, determined as of the date of exercise, as compared to $60 million and $164 million in the respective prior-year periods.

RSU Activity

The following table summarizes RSU activity under the Company's stock plans (in millions, except weighted average grant date fair value):



	Number of Shares		Weighted Average Grant-Date Fair Value
RSUs outstanding at June 27, 2014	3.7		$	49.77
Granted	1.1		100.07
Vested	(1.5	)	40.57
RSUs outstanding at October 3, 2014	3.3		70.88
Granted*	—		101.27
Vested	(0.1	)	48.25
Forfeited*	—		64.09
RSUs outstanding at January 2, 2015	3.2		72.15
Granted	0.1		101.84
Vested	(0.1	)	51.75
Forfeited	(0.1	)	64.65
RSUs outstanding at April 3, 2015	3.1		$	73.54
Expected to vest after April 3, 2015	3.0		$	73.07



*	Shares were immaterial for rounding purposes.

The fair value of each RSU is the market price of the Company’s stock at the date of grant. RSUs are generally payable in an equal number of shares of the Company’s common stock at the time of vesting of the units. The grant-date fair value of the shares underlying the RSU awards at the date of grant was $8 million and $124 million in the three and nine months ended April 3, 2015, respectively. These amounts are being recognized to expense over the corresponding vesting periods. The Company has assumed a forfeiture rate of 4.6% and 4.4% for the three and nine months ended April 3, 2015, respectively, based on a historical analysis indicating forfeitures for these types of awards.

SARs Activity

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. As of April 3, 2015, 0.6 million SARs were outstanding with a weighted average exercise price of $8.02. There were no SARs granted and all other SARs activity was immaterial to the condensed consolidated financial statements for the three and nine months ended April 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 was estimated using the following weighted average assumptions:



	Three Months Ended		Nine Months Ended
	April 3, 2015	March 28, 2014	April 3, 2015	March 28, 2014
Suboptimal exercise factor	2.65	2.29	2.52	2.06
Range of risk-free interest rates	0.21% to 1.60%	0.13% to 2.31%	0.11% to 2.16%	0.10% to 2.44%
Range of expected stock price volatility	0.25 to 0.45	0.27 to 0.48	0.23 to 0.47	0.27 to 0.50
Weighted average expected volatility	0.34	0.39	0.36	0.43
Post-vesting termination rate	1.04%	3.29%	1.25%	3.09%
Dividend yield	2.15%	1.34%	1.69%	1.57%
Fair value	$28.87	$28.78	$32.22	$24.06

The weighted average expected term of the Company’s stock options granted during the three and nine months ended April 3, 2015 was 5.3 years and 5.8 years, respectively, compared to 5.6 years and 5.0 years in the respective prior-year periods.

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 current ESPP are granted on either June 1 or December 1 of each year. ESPP activity was immaterial to the condensed consolidated financial statements for the three and nine months ended April 3, 2015 and March 28, 2014.

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 2.2 million and 7.6 million shares, respectively, for a total cost of $240 million and $772 million during the three and nine months ended April 3, 2015, respectively. The remaining amount available to be purchased under the Company’s stock repurchase program as of April 3, 2015 was $2.4 billion. 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 Company's Credit Agreement.

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 the three months ended April 3, 2015, the Company declared a cash dividend of $0.50 per share as of April 3, 2015, totaling $116 million, which was paid on April 16, 2015. In the nine months ended April 3, 2015, the Company declared cash dividends of $1.30 per share for a total of $280 million. On May 5, 2015, the Company declared a cash dividend of $0.50 per share as of July 3, 2015, which will be paid on July 15, 2015. The Company may modify, suspend or cancel its cash dividend policy in any manner and at any time.

Pensions and Other Post-retirement Benefit Plans

9 Months Ended

Apr. 03, 2015

Compensation and Retirement Disclosure [Abstract]

Pensions and Other Post-retirement Benefit Plans

10. Pensions and Other Post-retirement Benefit Plans

The Company’s principal pension and other post-retirement benefit plans are in Japan. All pension and other post-retirement benefit plans outside of the Company’s Japanese plans were immaterial to the Company’s condensed consolidated financial statements for the three and nine months ended April 3, 2015 and March 28, 2014. The expected long-term rate of return on the Japanese plan assets is 3.5%.

The following table presents the unfunded status of the benefit obligations and Japanese plan assets (in millions):



	April 3, 2015			June 27, 2014
Benefit obligation	$	219		$	255
Fair value of plan assets	(171		)	(191		)
Unfunded status	$	48		$	64

The following table presents the unfunded amounts as recognized on the Company’s condensed consolidated balance sheets (in millions):



	April 3, 2015		June 27, 2014
Current liabilities	$	1	$	1
Non-current liabilities	47		63
Net amount recognized	$	48	$	64

The net periodic benefit cost of the Company’s pension plans was not material to the condensed consolidated financial statements for the three and nine months ended April 3, 2015 and March 28, 2014. The Company’s expected employer contribution for its Japanese defined benefit pension plans is $11 million in fiscal 2015.

Acquisitions

9 Months Ended

Apr. 03, 2015

Business Combinations [Abstract]

Acquisitions

11. Acquisitions

The condensed 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 these condensed 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 $264 million, consisting of $245 million funded with available cash at the time of the acquisition and $19 million related to the fair value of a previously-held cost method investment. 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 $173 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 Quarterly Report on Form 10-Q, 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 condensed consolidated financial statements.

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



Tangible assets acquired and liabilities assumed	$	4
Intangible assets	87
Goodwill	173
Total	$	264

The $173 million of goodwill recognized is primarily attributable to the benefits the Company expects to derive from an ability to create hard disk drive 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 condensed consolidated financial statements for the three and nine months ended April 3, 2015.

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 three months ended April 3, 2015, which was recorded as a component of the employee termination benefits, asset impairments and other charges line item within the condensed consolidated statements of income.

Acquisition of Virident

On October 17, 2013, the Company acquired Virident Systems, Inc. ("Virident"), a provider of server-side flash storage solutions for virtualization, database, cloud computing and webscale applications. As a result of the acquisition, Virident has been fully integrated into the Company's HGST subsidiary and became a wholly-owned indirect subsidiary of the Company. The acquisition furthered HGST's strategy to address the rapidly changing needs of enterprise customers by delivering intelligent storage solutions that maximize application performance by leveraging the tightly coupled server, storage and network resources of today’s converged datacenter infrastructures.

The values assigned to the acquired assets and liabilities were finalized during the three months ended June 27, 2014, and the final purchase price allocation for Virident was as follows (in millions):



Tangible assets acquired and liabilities assumed	$	58
Intangible assets	49
Goodwill	506
Total	$	613

Acquisition of sTec

On September 12, 2013, the Company completed its acquisition of sTec, Inc. ("sTec"), a provider of enterprise solid-state drives. As a result of the acquisition, sTec has been fully integrated into the Company's HGST subsidiary and became a wholly-owned indirect subsidiary of the Company. The acquisition augmented HGST's existing solid-state storage capabilities.

The values assigned to the acquired assets and liabilities were finalized during the three months ended October 3, 2014, and the final purchase price allocation for sTec was as follows (in millions):



Tangible assets acquired and liabilities assumed	$	189
Intangible assets	58
Goodwill	89
Total	$	336

Employee Termination, Asset Impairment and Other Charges

9 Months Ended

Apr. 03, 2015

Restructuring and Related Activities [Abstract]

Employee Termination Benefits and Other Charges

12. Employee Termination, Asset Impairment and Other Charges

The Company periodically incurs charges to realign its operations with anticipated market demand. The employee termination, asset impairment and other charges line item within the Company's condensed consolidated statements of income consisted of the following:



	Three Months Ended					Nine Months Ended
	April 3, 2015			March 28, 2014		April 3, 2015			March 28, 2014
Employee termination benefits	$	17		$	6	$	60		$	27
Impairment of assets	2			17		21			26
Contract termination and other	(9		)	2		(9		)	6
Total	$	10		$	25	$	72		$	59

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



	June 27, 2014		Accruals		Payments			April 3, 2015
Employee termination benefits	$	7	$	60	$	(41	)	$	26

Thailand Flooding (Notes)	9 Months Ended
Thailand Flooding (Notes)	Apr. 03, 2015
Thailand Flooding [Abstract]
Unusual or Infrequent Items Disclosure [Text Block]	13. 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 received a total of $50 million of insurance recoveries, of which $13 million was received previously and $37 million was received in the three months ended January 2, 2015 and recorded as a component of the selling, general and administrative line item within the Company's condensed consolidated statements of income. All flood-related claims submitted by the Company to its insurers were closed as of January 2, 2015.

Recent Accounting Pronouncements	9 Months Ended
Recent Accounting Pronouncements	Apr. 03, 2015
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	14. Recent Accounting Pronouncements In April 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("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 Company does not expect the adoption of ASU 2015-03 to have a material effect on its condensed 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. 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, 2016, which for the Company is the first quarter of fiscal 2018. Additionally, the FASB recently proposed a one-year deferral period for the effective date of the new standard, which the Company will evaluate if or when the deferral proposal is approved. 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" ("ASU 2013-11"). 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 net operating loss 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 its condensed consolidated financial statements.

Basis of Presentation (Policies)	9 Months Ended
Basis of Presentation (Policies)	Apr. 03, 2015
Accounting Policies [Abstract]
Fiscal Period, Policy [Policy Text Block]	The Company's fiscal year ends on the Friday nearest to June 30 and typically consists of 52 weeks. Approximately every six years, the Company reports a 53-week fiscal year to align its fiscal year with the foregoing policy. The Company's fiscal third quarters ended April 3, 2015 and March 28, 2014 both consisted of 13 weeks. Fiscal year 2015 will be comprised of 53 weeks and will end on July 3, 2015.
Use of Estimates and Assumption	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.

Supplemental Financial Statement Data (Tables)

9 Months Ended

Apr. 03, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Inventories; Property, Plant and Equipment; and Other Intangible Assets



	April 3, 2015			June 27, 2014
	(in millions)
Inventories:
Raw materials and component parts	$	173		$	168
Work-in-process	498			493
Finished goods	651			565
Total inventories	$	1,322		$	1,226
Property, plant and equipment:
Property, plant and equipment	$	8,520		$	8,123
Accumulated depreciation	(5,469		)	(4,830		)
Property, plant and equipment, net	$	3,051		$	3,293
Other intangible assets:
Other intangible assets	$	1,067		$	984
Accumulated amortization	(667		)	(530		)
Other intangible assets, net	$	400		$	454

Changes in Warranty Accrual

Changes in the warranty accrual were as follows (in millions):



	Three Months Ended						Nine Months Ended
	April 3, 2015			March 28, 2014			April 3, 2015			March 28, 2014
Warranty accrual, beginning of period	$	222		$	190		$	182		$	187
Warranty liability assumed as a result of acquisition	1			—			1			4
Charges to operations	46			41			145			125
Utilization	(47		)	(56		)	(140		)	(162		)
Changes in estimate related to pre-existing warranties	(1		)	(2		)	33			19
Warranty accrual, end of period	$	221		$	173		$	221		$	173

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 as of April 3, 2015 (in millions):



	Cost Basis		Unrealized Gains (Losses)		Fair Value
Available-for-sale securities:
U.S. Treasury securities	$	204	$	—	$	204
U.S. Government agency securities	116		—		116
Commercial paper	154		—		154
Certificates of deposit	48		—		48
Total	$	522	$	—	$	522

The following table summarizes, by major type, the fair value and cost basis of the Company’s investments 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 as of June 27, 2014, by remaining contractual maturity, were as follows (in millions):



	Cost Basis		Fair Value
Due in less than one year (short-term investments):	$	284	$	284
Due in one to five years (included in other non-current assets):	215		215
Total	$	499	$	499

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



	Cost Basis		Fair Value
Due in less than one year (short-term investments):	$	228	$	228
Due in one to five years (included in other non-current assets):	294		294
Total	$	522	$	522

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following table illustrates the changes in the balances of each component of accumulated other comprehensive income (loss) for the nine months ended April 3, 2015 (in millions):



	Actuarial Pension Gain		Unrealized Gain (Loss) on Foreign Exchange Contracts			Accumulated Other Comprehensive Income (Loss)
Balance at June 27, 2014	$	7	$	5		$	12
Other comprehensive income (loss) before reclassifications	—		(39		)	(39		)
Amounts reclassified from accumulated other comprehensive income (loss)	—		24			24
Net current-period other comprehensive income (loss)	—		(15		)	(15		)
Balance at April 3, 2015	$	7	$	(10	)	$	(3	)

The following table illustrates the changes in the balances of each component of accumulated other comprehensive income (loss) for the nine months ended March 28, 2014 (in millions):



	Actuarial Pension Gain		Unrealized Gain (Loss) on Foreign Exchange Contracts			Accumulated Other Comprehensive Income (Loss)
Balance at June 28, 2013	$	11	$	(46	)	$	(35	)
Other comprehensive income (loss) before reclassifications	—		2			2
Amounts reclassified from accumulated other comprehensive income (loss)	—		29			29
Net current-period other comprehensive income (loss)	—		31			31
Balance at March 28, 2014	$	11	$	(15	)	$	(4	)

Income per Common Share (Tables)

9 Months Ended

Apr. 03, 2015

Earnings Per Share [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):



	Three Months Ended				Nine Months Ended
	April 3, 2015		March 28, 2014		April 3, 2015		March 28, 2014
Net income	$	384	$	375	$	1,245	$	1,300
Weighted average shares outstanding:
Basic	231		235		233		236
Employee stock options and other	5		7		5		6
Diluted	236		242		238		242
Income per common share:
Basic	$	1.66	$	1.60	$	5.34	$	5.51
Diluted	$	1.63	$	1.55	$	5.23	$	5.37
Anti-dilutive potential common shares excluded*	1		2		1		1



*	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.

Fair Value Measurements (Tables)

9 Months Ended

Apr. 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	$	758	$	—	$	—	$	758
Total cash equivalents	758		—		—		758
Short-term investments:
U.S. Government agency securities	—		26		—		26
Commercial paper	—		154		—		154
Certificates of deposit	—		48		—		48
Total short-term investments	—		228		—		228
Long-term investments:
U.S. Treasury securities	—		204		—		204
U.S. Government agency securities	—		90		—		90
Total long-term investments	—		294		—		294
Foreign exchange contracts	—		2		—		2
Total assets at fair value	$	758	$	524	$	—	$	1,282
Liabilities:
Foreign exchange contracts	$	—	$	17	$	—	$	17
Total liabilities at fair value	$	—	$	17	$	—	$	17



	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

Foreign Exchange Contracts (Tables)

9 Months Ended

Apr. 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 the Company's foreign exchange contracts as of April 3, 2015 and June 27, 2014 were as follows (in millions):

Asset Derivatives

Liability Derivatives

April 3, 2015

June 27, 2014

April 3, 2015

June 27, 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

Accrued expenses

Offsetting Assets and Liabilities [Table Text Block]



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
Foreign exchange contracts
Financial assets	$	6		$	(4	)	$	2
Financial liabilities	(21		)	4			(17		)
Total derivative instruments	$	(15	)	$	—		$	(15	)



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
Foreign exchange contracts
Financial assets	$	9		$	(2	)	$	7
Financial liabilities	(4		)	2			(2		)
Total derivative instruments	$	5		$	—		$	5

Gains (Losses) of Derivatives in Cash Flow Hedging Relationships

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



	Amount of Gain (Loss) Recognized in Accumulated OCI on Derivatives									Location of Gain (Loss) Reclassified from Accumulated OCI into Income	Amount of Gain (Loss) Reclassified From Accumulated OCI into Income
Derivatives in Cash Flow Hedging Relationships	Three Months Ended		Nine Months Ended			Three Months Ended		Nine Months Ended			Three Months Ended			Nine Months Ended			Three Months Ended			Nine Months Ended
Derivatives in Cash Flow Hedging Relationships	April 3, 2015					March 28, 2014					April 3, 2015						March 28, 2014
Foreign exchange contracts	$	19	$	(39	)	$	13	$	2	Cost of revenue	$	(10	)	$	(24	)	$	(32	)	$	(29	)

Stock-Based Compensation (Tables)

9 Months Ended

Apr. 03, 2015

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

Stock Option Activity

The following table summarizes stock option activity under the Company’s stock option plans (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 27, 2014	10.1		$	37.03
Granted	1.2		100.06
Exercised	(1.3	)	31.04
Options outstanding at October 3, 2014	10.0		45.16
Exercised	(1.1	)	32.14
Canceled or expired	(0.1	)	32.53
Options outstanding at January 2, 2015	8.8		47.01
Assumed in acquisition	0.1		3.49
Exercised	(1.0	)	32.26
Canceled or expired	(0.2	)	58.23
Options outstanding at April 3, 2015	7.7		$	48.48	4.5	$	358
Exercisable at April 3, 2015	3.5		$	34.15	3.2	$	215
Vested and expected to vest after April 3, 2015	7.6		$	47.91	4.5	$	355

Restricted Stock Unit Activity

The following table summarizes RSU activity under the Company's stock plans (in millions, except weighted average grant date fair value):



	Number of Shares		Weighted Average Grant-Date Fair Value
RSUs outstanding at June 27, 2014	3.7		$	49.77
Granted	1.1		100.07
Vested	(1.5	)	40.57
RSUs outstanding at October 3, 2014	3.3		70.88
Granted*	—		101.27
Vested	(0.1	)	48.25
Forfeited*	—		64.09
RSUs outstanding at January 2, 2015	3.2		72.15
Granted	0.1		101.84
Vested	(0.1	)	51.75
Forfeited	(0.1	)	64.65
RSUs outstanding at April 3, 2015	3.1		$	73.54
Expected to vest after April 3, 2015	3.0		$	73.07



*	Shares were immaterial for rounding purposes.

Fair Value of Stock Options Granted

The fair value of stock options granted was estimated using the following weighted average assumptions:



	Three Months Ended		Nine Months Ended
	April 3, 2015	March 28, 2014	April 3, 2015	March 28, 2014
Suboptimal exercise factor	2.65	2.29	2.52	2.06
Range of risk-free interest rates	0.21% to 1.60%	0.13% to 2.31%	0.11% to 2.16%	0.10% to 2.44%
Range of expected stock price volatility	0.25 to 0.45	0.27 to 0.48	0.23 to 0.47	0.27 to 0.50
Weighted average expected volatility	0.34	0.39	0.36	0.43
Post-vesting termination rate	1.04%	3.29%	1.25%	3.09%
Dividend yield	2.15%	1.34%	1.69%	1.57%
Fair value	$28.87	$28.78	$32.22	$24.06

Pensions and Other Post-retirement Benefit Plans (Tables)

9 Months Ended

Apr. 03, 2015

Compensation and Retirement Disclosure [Abstract]

Unfunded Status of Benefit Obligations and Plan Assets

The following table presents the unfunded status of the benefit obligations and Japanese plan assets (in millions):



	April 3, 2015			June 27, 2014
Benefit obligation	$	219		$	255
Fair value of plan assets	(171		)	(191		)
Unfunded status	$	48		$	64

Unfunded Amounts Recognized on Consolidated Balance Sheet

The following table presents the unfunded amounts as recognized on the Company’s condensed consolidated balance sheets (in millions):



	April 3, 2015		June 27, 2014
Current liabilities	$	1	$	1
Non-current liabilities	47		63
Net amount recognized	$	48	$	64

Acquisitions (Tables)

9 Months Ended

Apr. 03, 2015

Business Combinations [Abstract]

Purchase Price Allocations

The values assigned to the acquired assets and liabilities were finalized during the three months ended October 3, 2014, and the final purchase price allocation for sTec was as follows (in millions):



Tangible assets acquired and liabilities assumed	$	189
Intangible assets	58
Goodwill	89
Total	$	336



Tangible assets acquired and liabilities assumed	$	58
Intangible assets	49
Goodwill	506
Total	$	613

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



Tangible assets acquired and liabilities assumed	$	4
Intangible assets	87
Goodwill	173
Total	$	264

Employee Termination, Asset Impairment and Other Charges Employee Termination, Asset Impairment and Other Charges (Tables)

9 Months Ended

Apr. 03, 2015

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Reserve by Type of Cost



	Three Months Ended					Nine Months Ended
	April 3, 2015			March 28, 2014		April 3, 2015			March 28, 2014
Employee termination benefits	$	17		$	6	$	60		$	27
Impairment of assets	2			17		21			26
Contract termination and other	(9		)	2		(9		)	6
Total	$	10		$	25	$	72		$	59

Rollforward of Employment Termination Benefit Liability

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



	June 27, 2014		Accruals		Payments			April 3, 2015
Employee termination benefits	$	7	$	60	$	(41	)	$	26

Supplemental Financial Statement Data - Inventories; Property, Plant and Equipment; and Other Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jun. 27, 2014
Inventories:
Raw materials and component parts	$ 173	$ 168
Work-in-process	498	493
Finished goods	651	565
Total inventories	1,322	1,226
Property, plant and equipment:
Property, plant and equipment	8,520	8,123
Accumulated depreciation	(5,469)	(4,830)
Property, plant and equipment, net	3,051	3,293
Other intangible assets:
Other intangible assets, gross	1,067	984
Accumulated amortization	(667)	(530)
Other intangible assets, net	$ 400	$ 454

Supplemental Financial Statement Data - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 03, 2015	Jun. 27, 2014
Supplemental Financial Statement Data [Abstract]
Product warranty, Minimum	1 year
Product warranty, Maximum	5 years
Long-term portion of the warranty accrual classified in other liabilities	$ 65	$ 63

Supplemental Financial Statement Data - Changes in Accrual Warranty (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Apr. 03, 2015	Mar. 28, 2014
Product Warranties Disclosures [Abstract]
Warranty accrual, beginning of period	$ 222	$ 190	$ 182	$ 187
Warranty liabilities assumed as a result of the Acquisition	1	0	1	4
Charges to operations	46	41	145	125
Utilization	(47)	(56)	(140)	(162)
Changes in estimate related to pre-existing warranties	(1)	(2)	33	19
Warranty accrual, end of period	$ 221	$ 173	$ 221	$ 173

Supplemental Financial Statement Data Supplemental FS Data - Investments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Apr. 03, 2015	Jun. 27, 2014
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 522	$ 499
Available-for-sale Securities, Gross Unrealized Gain (Loss)	0	0
Available-for-sale Securities, Fair Value	522	499
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	204	180
Available-for-sale Securities, Gross Unrealized Gain (Loss)	0	0
Available-for-sale Securities, Fair Value Disclosure	204	180
US Government Agencies Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	116	88
Available-for-sale Securities, Gross Unrealized Gain (Loss)	0	0
Available-for-sale Securities, Fair Value Disclosure	116	88
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	154	165
Available-for-sale Securities, Gross Unrealized Gain (Loss)	0	0
Available-for-sale Securities, Fair Value Disclosure	154	165
Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	48	66
Available-for-sale Securities, Gross Unrealized Gain (Loss)	0	0
Available-for-sale Securities, Fair Value Disclosure	$ 48	$ 66

Supplemental Financial Statement Data Supplemental FS Data - Investments by Maturity Date (Details) (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jun. 27, 2014
Investments, Equity Securities By Maturity Date [Abstract]
Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis	$ 228	$ 284
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	294	215
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis	522	499
Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value	228	284
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	294	215
Available-for-sale Securities, Debt Maturities, Fair Value	$ 522	$ 499

Supplemental Financial Statement Data Changes in Balances of Each Component of Accumulated Comprehensive Income (Loss) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Apr. 03, 2015	Mar. 28, 2014
Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ 12	$ (35)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			(39)	2
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			24	29
Other comprehensive income (loss)	29	45	(15)	31
Ending Balance	(3)	(4)	(3)	(4)
Accumulated Defined Benefit Plans Adjustment [Member]
Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Line Items]
Beginning Balance			7	11
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			0	0
Other comprehensive income (loss)			0	0
Ending Balance	7	11	7	11
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Changes in the Balances of Each Component of Accumulated Comprehensive Income (Loss) [Line Items]
Beginning Balance			5	(46)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			(39)	2
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax			24	29
Other comprehensive income (loss)			(15)	31
Ending Balance	$ (10)	$ (15)	$ (10)	$ (15)

Income per Common Share - Computation of Basic and Diluted Income Per Common Share (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified

3 Months Ended

9 Months Ended

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Mar. 28, 2014

Earnings Per Share [Abstract]

Net income

$ 384

$ 375

$ 1,245

$ 1,300

Weighted average shares outstanding:

Basic

231

235

233

236

Employee stock options and other

Diluted

236

242

238

242

Income per common share:

Basic

$ 1.66

$ 1.60

$ 5.34

$ 5.51

Diluted

$ 1.63

$ 1.55

$ 5.23

$ 5.37

Anti-dilutive potential common shares excluded*

^[1]

[1]	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.

Debt - Additional Information (Detail) (USD $)	3 Months Ended
Debt - Additional Information (Detail) (USD $)	Apr. 03, 2015	Jan. 09, 2014
Debt Instrument [Line Items]
Total unsecured loan under credit facility	$ 4,000,000,000
Line of credit facility additional borrowing capacity	1,000,000,000.0
Period of Term Loan Facility	5 years
Interest rate of borrowing under credit facility	1.68%
Remaining outstanding balance term loan facility	2,300,000,000.0	1,800,000,000.0
Sublimit for Letters of Credit Under Revolving Credit Facility	100,000,000
Sublimit for Swing Line Loans Under Revolving Credit Facility	50,000,000
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	31,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Two	156,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Three	219,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Four	250,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Five	1,700,000,000
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

Legal Proceedings - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Dec. 23, 2014	Oct. 14, 2014	Oct. 12, 2012	Jan. 23, 2012
Commitments and Contingencies Disclosure [Abstract]
Amount of total award issued by the arbitrator					$ 630.4
Amount of total award issued by arbitrator vacated				630.4
Final Arbitration Award			773.4
Disputed Post Award Interest		29.0
Loss Contingency, Range of Possible Loss, Maximum	$ 90

Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Apr. 03, 2015	Mar. 28, 2014
Income Tax Disclosure [Line Items]
Income tax provision	$ 28	$ 31	$ 85	$ 105
Tax Benefit Resulting From Retroactive Extension Of Research And Development Credit			16
Expiration date of tax holiday in Malaysia, Philippines, Singapore and Thailand			from 2015 through 2025
Increase (Decrease) in liability for unrecognized tax benefits	16		32
Unrecognized tax benefits	332		332
Proposed IRS adjustments to Pre-tax income	$ 200		$ 200

Fair Value Measurements - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jun. 27, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	$ 2	$ 7
Derivative Liabilities	(17)	(2)
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	758	757
Short-term Investments, Fair Value Disclosure	228	284
Long-term Investments, Fair Value Disclosure	294	215
Total assets at fair value	1,282	1,263
Total liabilities at fair value	17	2
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	758	756
Fair Value, Measurements, Recurring [Member] \| US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Investments, Fair Value Disclosure	204	180
Fair Value, Measurements, Recurring [Member] \| Bankers Acceptance [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents		1
Fair Value, Measurements, Recurring [Member] \| Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments, Fair Value Disclosure	154	165
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, Fair Value Disclosure	48	66
Fair Value, Measurements, Recurring [Member] \| US Government Agencies Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments, Fair Value Disclosure	26	53
Long-term Investments, Fair Value Disclosure	90	35
Fair Value, Measurements, Recurring [Member] \| Foreign exchange contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	2	7
Derivative Liabilities	17	2
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	758	756
Short-term Investments, Fair Value Disclosure	0	0
Long-term Investments, Fair Value Disclosure	0	0
Total assets at fair value	758	756
Total liabilities at fair value	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 1 [Member] \| Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	758	756
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 1 [Member] \| US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 1 [Member] \| Bankers Acceptance [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents		0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 1 [Member] \| Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 1 [Member] \| Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 1 [Member] \| US Government Agencies Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments, Fair Value Disclosure	0	0
Long-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 1 [Member] \| Foreign exchange contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0	0
Derivative Liabilities	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	1
Short-term Investments, Fair Value Disclosure	228	284
Long-term Investments, Fair Value Disclosure	294	215
Total assets at fair value	524	507
Total liabilities at fair value	17	2
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 2 [Member] \| Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 2 [Member] \| US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Investments, Fair Value Disclosure	204	180
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 2 [Member] \| Bankers Acceptance [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents		1
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 2 [Member] \| Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments, Fair Value Disclosure	154	165
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 2 [Member] \| Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments, Fair Value Disclosure	48	66
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 2 [Member] \| US Government Agencies Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments, Fair Value Disclosure	26	53
Long-term Investments, Fair Value Disclosure	90	35
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 2 [Member] \| Foreign exchange contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	2	7
Derivative Liabilities	17	2
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	0
Short-term Investments, Fair Value Disclosure	0	0
Long-term Investments, Fair Value Disclosure	0	0
Total assets at fair value	0	0
Total liabilities at fair value	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 3 [Member] \| Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 3 [Member] \| US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 3 [Member] \| Bankers Acceptance [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total cash equivalents		0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 3 [Member] \| Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 3 [Member] \| Certificates of Deposit [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 3 [Member] \| US Government Agencies Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments, Fair Value Disclosure	0	0
Long-term Investments, Fair Value Disclosure	0	0
Fair Value, Measurements, Recurring [Member] \| Fair Value Measurements at Reporting Date Using Level 3 [Member] \| Foreign exchange contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	0	0
Derivative Liabilities	$ 0	$ 0

Foreign Exchange Contracts - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Apr. 03, 2015	Mar. 28, 2014
Foreign Exchange Contracts [Abstract]
Contract maturity dates	Less than 12 months
Unrealized gains expected to be reclassified into earnings	$ 10,000,000		$ 10,000,000
Foreign exchange contracts opened during the period by company	1,500,000,000.0	1,000,000,000.0	3,500,000,000.0	3,700,000,000.0
Foreign exchange contracts closed during the period by company	$ 1,300,000,000.0	$ 1,200,000,000.0	$ 3,500,000,000.0	$ 3,800,000,000.0

Foreign Exchange Contracts - Fair Value and Balance Sheet Location of Contracts (Detail) (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jun. 27, 2014
Derivatives, Fair Value [Line Items]
Derivative Asset	$ 2	$ 7
Derivatives Designated as Hedging Instruments Fair Value, Liability Derivatives	17	2
Other current assets [Member] \| Designated as Hedging Instrument [Member] \| Foreign exchange contracts [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset	2	7
Accrued expenses [Member] \| Designated as Hedging Instrument [Member] \| Foreign exchange contracts [Member]
Derivatives, Fair Value [Line Items]
Derivatives Designated as Hedging Instruments Fair Value, Liability Derivatives	$ (17)	$ (2)

Foreign Exchange Contracts Net Amounts of Foreign Exchange Contract Assets and Liabilities Presented In the Balance Sheet (Details) (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jun. 27, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Asset, Fair Value, Gross Asset	$ 6	$ 9
Derivative Asset, Fair Value, Amount Offset	(4)	(2)
Derivative Assets	2	7
Derivative Liability, Fair Value, Gross Liability	(21)	(4)
Derivative Liability, Fair Value, Amount Offset	4	2
Derivative Liabilities	(17)	(2)
Derivative Assets	(15)	5
Derivative, Fair Value, Amount Offset	0	0
Derivative Assets (Liabilities), at Fair Value, Net	$ (15)	$ 5

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	3 Months Ended		9 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Apr. 03, 2015	Mar. 28, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Accumulated OCI on Derivatives	$ 19	$ 13	$ (39)	$ 2
Cost of revenue [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Gain) Loss Reclassified From Accumulated OCI into Income	$ (10)	$ (32)	$ (24)	$ (29)

Stock-Based Compensation - Additional Information (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	0 Months Ended	3 Months Ended			9 Months Ended
	Apr. 16, 2015	Jul. 03, 2015	Apr. 03, 2015	Mar. 28, 2014	Apr. 03, 2015	Mar. 28, 2014	Feb. 03, 2015	May 21, 2012
Stock Based Compensation [Abstract]
Expenses on stock-based compensation			$ 17,000,000	$ 24,000,000	$ 53,000,000	$ 69,000,000
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense			8,000,000	6,000,000	20,000,000	17,000,000
Total compensation cost related to unvested stock options and ESPP rights issued			111,000,000		111,000,000
Weighted average service period					2 years 0 months 26 days
Expense related to the vesting of restricted stock unit awards			21,000,000	17,000,000	64,000,000	56,000,000
EmployeeServiceShareBasedCompensationTaxBenefitFromRestrictedStockAmortizationExpense			6,000,000	5,000,000	17,000,000	14,000,000
Unamortized fair value of all unvested restricted stock unit awards			141,000,000		141,000,000
Weighted average vesting period					1 year 6 months 4 days
Compensation cost for cash-settled stock appreciation rights			9,000,000	11,000,000	3,000,000	35,000,000
EmployeeServiceShareBasedCompensationTaxBenefitFromStockAppreciationRightsCompensationExpense			2,000,000	2,000,000	1,000,000	7,000,000
Total liability related to SARs			50,000,000		50,000,000
Options outstanding to purchase shares with exercise price below company stock price			6.4		6.4
Options outstanding to purchase shares with exercise price below company stock price, intrinsic value			358,000,000		358,000,000
Aggregate intrinsic value of options exercised under the Company's stock option plan			73,000,000	60,000,000	236,000,000	164,000,000
Grant-date fair value of the shares underlying the restricted stock awards			8,000,000		124,000,000
Forfeiture rate of restricted stock unit valuation assumption			4.60%		4.40%
Stock Appreciation Right outstanding, weighted average exercise price			$ 8.02		$ 8.02
Number of assumed SARs outstanding			0.6		0.6
Weighted average expected term of the Company's stock options			5 years 3 months 18 days	5 years 7 months 6 days	5 years 9 months 11 days	5 years
StockRepurchaseProgramAdditionalAmountAuthorized							2,000,000,000	3,000,000,000
Treasury Stock, Shares, Acquired			2.2		7.6
Treasury Stock, Value, Acquired, Cost Method			240,000,000		772,000,000
RemainingAmountForRepurchaseUnderShareRepurchaseProgram			2,382,000,000		2,382,000,000
Cash dividend		$ 0.50	$ 0.50		$ 1.30
Payments of Dividends	$ 116,000,000				$ 280,000,000	$ 189,000,000

Stock-Based Compensation - Stock Option Activity (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 03, 2015	Jan. 02, 2015	Oct. 03, 2014
Stock Option Activity [Abstract]
Options outstanding, Beginning Balance, Numbers of Shares	8.8	10.0	10.1
Granted, Number of Shares			1.2
Share Based Compensation Arrangement By Share Based Payment Award Options Assumed In Period	0.1
Exercised, Number of Shares	(1.0)	(1.1)	(1.3)
Options Canceled or Expired In Period	(0.2)	(0.1)
Options outstanding, Ending Balance, Numbers of Shares	7.7	8.8	10.0
Exercisable at April 3, 2015	3.5
Vested and expected to vest after April 3, 2015	7.6
Options outstanding, Beginning Balance, Weighted Average Exercise Price Per Share	$ 47.01	$ 45.16	$ 37.03
Granted, Weighted Average Exercise Price Per Share			$ 100.06
Share Based Compensation Options Assumed Weighted Average Exercise Price	$ 3.49
Exercised, Weighted Average Exercise Price Per Share	$ 32.26	$ 32.14	$ 31.04
Canceled or expired, Weighted Average Exercise Price Per Share	$ 58.23	$ 32.53
Options outstanding, Ending Balance, Weighted Average Exercise Price Per Share	$ 48.48	$ 47.01	$ 45.16
Exercisable at April 3, 2015, Weighted Average Exercise Price Per Share	$ 34.15
Vested and expected to vest after April 3, 2015, Weighted Average Exercise Price Per Share	$ 47.91
Options outstanding at April 3, 2015, Weighted Average Remaining Contractual Life (in years)	4 years 6 months 4 days
Exercisable at April 3, 2015, Weighted Average Remaining Contractual Life (in years)	3 years 2 months 19 days
Vested and expected to vest after April 3, 2015, Weighted Average Remaining Contractual Life (in years)	4 years 5 months 23 days
Options outstanding at April 3, 2015, Aggregate Intrinsic Value	$ 358
Exercisable at April 3, 2015, Aggregate Intrinsic Value	215
Vested and expected to vest after April 3, 2015, Aggregate Intrinsic Value	$ 355

Stock-Based Compensation - Restricted Stock Units (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 03, 2015	Jan. 02, 2015	Oct. 03, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Numbers of Shares, Beginning Balance	3.2	3.3	3.7
Restricted stock, Number of share granted	0.1	0	1.1
Restricted stock, Number of share vested	(0.1)	(0.1)	(1.5)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(0.1)	0
Numbers of Shares, Ending Balance	3.1	3.2	3.3
Number of share, Expected to vest after April 3, 2015	3.0
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant Date Fair Value Per Share, Beginning Balance	$ 72.15	$ 70.88	$ 49.77
Restricted stock, Granted, Weighted Average Grant Date Fair Value Per Share	$ 101.84	$ 101.27	$ 100.07
Restricted stock, Vested, Weighted Average Grant Date Fair Value Per Share	$ 51.75	$ 48.25	$ 40.57
Share Based Compensation Arrangement By Share Based Payment Awards Equity Instruments Other Than Options Forfeited In Period Weighted Average Grant Date Fair Value	$ 64.65	$ 64.09
Weighted Average Grant Date Fair Value Per Share, Ending Balance	$ 73.54	$ 72.15	$ 70.88
Weighted Average Grant Date Fair Value Per Share, Expected to vest after April 3, 2015	$ 73.07

Stock-Based Compensation - Fair Value of Stock Options Granted (Detail) (USD $)	3 Months Ended		9 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Apr. 03, 2015	Mar. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Suboptimal exercise factor	2.65	2.29	2.52	2.06
Risk-free interest rates, minimum	0.21%	0.13%	0.11%	0.10%
Risk-free interest rates, maximum	1.60%	2.31%	2.16%	2.44%
Expected stock price volatility, minimum	0.25%	0.27%	0.23%	0.27%
Expected stock price volatility, maximum	0.45%	0.48%	0.47%	0.50%
Weighted average expected volatility	0.34%	0.39%	0.36%	0.43%
Post-vesting termination rate	1.04%	3.29%	1.25%	3.09%
Dividend yield	2.15%	1.34%	1.69%	1.57%
Fair value	$ 28.87	$ 28.78	$ 32.22	$ 24.06

Pensions and Other Post-retirement Benefit Plans - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended
	Apr. 03, 2015	Jul. 03, 2015 Scenario, Forecast [Member] Japan pension benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on plan assets	3.50%
Expected contribution for pension plan		$ 11

Pensions and Other Post-retirement Benefit Plans - Unfunded Status of Benefit Obligations and Plan Assets (Detail) (Japan pension benefits [Member], USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jun. 27, 2014
Japan pension benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation	$ 219	$ 255
Fair value of plan assets	(171)	(191)
Unfunded status	$ 48	$ 64

Pensions and Other Post-retirement Benefit Plans - Unfunded Amounts Recognized on Consolidated Balance Sheet (Detail) (Japan pension benefits [Member], USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jun. 27, 2014
Japan pension benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Current liabilities	$ 1	$ 1
Non-current liabilities	47	63
Net amount recognized	$ 48	$ 64

Acquisitions - Additional Information (Detail) (USD $) In Millions, unless otherwise specified			0 Months Ended	3 Months Ended
	Apr. 03, 2015	Jun. 27, 2014	Mar. 09, 2015 Amplidata [Member]	Apr. 03, 2015 Amplidata [Member]	Mar. 09, 2015 Amplidata [Member]	Oct. 17, 2013 Virident [Member]	Sep. 12, 2013 sTec [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred			$ 264
Business Acquisition, Cost of Acquired Entity, Cash Paid			245
Fair value of previously held cost-method investment transferred			19
Value allocated to goodwill	2,745	2,559			173	506	89
Gain recognized during period upon fair value re-measurement of interest held				$ 9

Acquisitions Amplidata purchase price allocation (Details) (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jun. 27, 2014	Mar. 09, 2015 Amplidata [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net			$ 4
Intangible assets			87
Goodwill	2,745	2,559	173
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net			$ 264

Acquisitions Virident purchase price allocation (Details) (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jun. 27, 2014	Oct. 17, 2013 Virident [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net			$ 58
Intangible assets			49
Goodwill	2,745	2,559	506
Total			$ 613

Acquisitions sTec Purchase Price Allocation (Details) (USD $) In Millions, unless otherwise specified	Apr. 03, 2015	Jun. 27, 2014	Sep. 12, 2013 sTec [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net			$ 189
Intangible assets			58
Goodwill	2,745	2,559	89
Total			$ 336

Employee Termination, Asset Impairment and Other Charges - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Apr. 03, 2015	Mar. 28, 2014
Employee Termination, Asset Impairment and Other Charges [Line Items]
Employee termination, asset impairment and other charges	$ 10	$ 25	$ 72	$ 59
Restructuring Reserve [Roll Forward]
Restructuring Reserve			7
Accruals			60
Payments			(41)
Restructuring Reserve	26		26
Employee termination benefits
Employee Termination, Asset Impairment and Other Charges [Line Items]
Employee termination, asset impairment and other charges	17	6	60	27
Contract termination and other
Employee Termination, Asset Impairment and Other Charges [Line Items]
Employee termination, asset impairment and other charges	(9)	2	(9)	6
Impairment of assets
Employee Termination, Asset Impairment and Other Charges [Line Items]
Employee termination, asset impairment and other charges	$ 2	$ 17	$ 21	$ 26