Seagate Technology (STX) 10-Q 29 Jan 16 2016 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jan. 01, 2016	Jan. 25, 2016
Document And Entity Information
Entity Registrant Name	Seagate Technology plc
Entity Central Index Key	1,137,789
Document Type	10-Q
Document Period End Date	Jan. 1, 2016
Amendment Flag	false
Current Fiscal Year End Date	--07-01
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		296,421,970
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Jan. 01, 2016	Jul. 03, 2015
Current assets:
Cash and cash equivalents	$ 1,258	$ 2,479
Short-term investments	6	6
Accounts receivable, net	1,398	1,735
Inventories	1,046	993
Deferred income taxes	0	122
Other current assets	223	233
Total current assets	3,931	5,568
Property, equipment and leasehold improvements, net	2,230	2,278
Goodwill	1,238	874
Other intangible assets, net	535	370
Deferred income taxes	617	496
Other assets, net	245	259
Total Assets	8,796	9,845
Current liabilities:
Accounts payable	1,759	1,540
Accrued employee compensation	175	256
Accrued warranty	119	135
Accrued expenses	486	412
Total current liabilities	2,539	2,343
Long-term accrued warranty	104	113
Long-term accrued income taxes	27	33
Other non-current liabilities	165	183
Long-term debt	4,140	4,155
Total Liabilities	6,975	6,827
Seagate Technology plc Shareholders' Equity:
Ordinary shares and additional paid-in capital	5,836	5,734
Accumulated other comprehensive loss	(32)	(30)
Accumulated deficit	(3,983)	(2,686)
Total Equity	1,821	3,018
Total Liabilities and Equity	$ 8,796	$ 9,845

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Income Statement [Abstract]
Revenue	$ 2,986	$ 3,696	$ 5,911	$ 7,481
Cost of revenue	2,245	2,669	4,482	5,403
Product development	304	341	632	683
Marketing and administrative	160	218	341	434
Amortization of intangibles	31	32	65	62
Restructuring and other, net	17	3	76	10
Gain on arbitration award, net		(620)		(620)
Total operating expenses	2,757	2,643	5,596	5,972
Income from operations	229	1,053	315	1,509
Interest income	1	1	2	3
Interest expense	(48)	(50)	(95)	(104)
Other, net	(2)	122	(11)	109
Other (expense) income, net	(49)	73	(104)	8
Income before income taxes	180	1,126	211	1,517
Provision for income taxes	(15)	(193)	(13)	(203)
Net income attributable to Seagate Technology plc	$ 165	$ 933	$ 198	$ 1,314
Net income per share:
Basic (in dollars per share)	$ 0.55	$ 2.84	$ 0.66	$ 4.02
Diluted (in dollars per share)	$ 0.55	$ 2.78	$ 0.65	$ 3.91
Number of shares used in per share calculations:
Basic (in shares)	299	328	301	327
Diluted (in shares)	301	336	304	336
Cash dividends declared per ordinary share	$ 0.63	$ 0.54	$ 1.17	$ 0.97

CONDENSED CONSOLIDATED STATEME4

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 165	$ 933	$ 198	$ 1,314
Cash flow hedges
Change in net unrealized gain (loss) on cash flow hedges	0	(6)	(2)	(9)
Less: reclassification for amounts included in net income	1	2	2	2
Net change	1	(4)	0	(7)
Marketable securities
Change in net unrealized gain (loss) on marketable securities	0	0	0	0
Less: reclassification for amounts included in net income	0	0	0	0
Net change	0	0	0	0
Post-retirement plans
Change in unrealized gain (loss) on post-retirement plans	0	0	1	0
Less: reclassification for amounts included in net income	0	0	0	0
Net change	0	0	1	0
Foreign currency translation adjustments
Foreign currency translation adjustments	(3)	(6)	(3)	(16)
Total other comprehensive income (loss), net of tax	(2)	(10)	(2)	(23)
Comprehensive income	$ 163	$ 923	$ 196	$ 1,291

CONDENSED CONSOLIDATED STATEME5

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015
OPERATING ACTIVITIES
Net income	$ 198	$ 1,314
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	417	426
Share-based compensation	65	73
Deferred income taxes	0	(4)
Loss on redemption and repurchase of debt	0	52
Other non-cash operating activities, net	11	3
Changes in operating assets and liabilities:
Accounts receivable, net	384	(99)
Inventories	(32)	(107)
Accounts payable	257	209
Accrued employee compensation	(87)	(24)
Accrued expenses, income taxes and warranty	(5)	167
Vendor non-trade receivables	10	28
Other assets and liabilities	(12)	7
Net cash provided by operating activities	1,206	2,045
INVESTING ACTIVITIES
Acquisition of property, equipment and leasehold improvements	(346)	(387)
Purchases of short-term investments	0	(5)
Sales of short-term investments	0	4
Maturities of short-term investments	0	19
Cash used in acquisition of business, net of cash acquired	634	450
Other investing activities, net	0	34
Net cash used in investing activities	(980)	(853)
FINANCING ACTIVITIES
Redemption and repurchase of debt	(15)	(535)
Net proceeds from issuance of long-term debt	0	498
Taxes paid related to net share settlement of equity awards	54	0
Repurchases of ordinary shares	(1,061)	(201)
Dividends to shareholders	(351)	(317)
Proceeds from issuance of ordinary shares under employee stock plans	41	49
Other financing activities, net	(4)	(12)
Net cash used in financing activities	(1,444)	(518)
Effect of foreign currency exchange rate changes on cash and cash equivalents	(3)	(12)
(Decrease) increase in cash and cash equivalents	(1,221)	662
Cash and cash equivalents at the beginning of the period	2,479	2,634
Cash and cash equivalents at the end of the period	$ 1,258	$ 3,296

CONDENSED CONSOLIDATED STATEME6

CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - 6 months ended Jan. 01, 2016 - USD ($) shares in Millions, $ in Millions	Total	Ordinary Shares [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]	Parent [Member]
Total Equity, Beginning balance at Jul. 03, 2015	$ 3,018
Starting Balance (in shares) at Jul. 03, 2015		315
Total Seagate Technology plc Shareholders' Equity, Starting Balance at Jul. 03, 2015		$ 0	$ 5,734	$ (30)	$ (2,686)	$ 3,018
Increase (Decrease) in Stockholders' Equity
Net income	198				198	198
Other comprehensive income (loss)	(2)			(2)		(2)
Issuance of ordinary shares under employee stock plans			41			41
Issuance of ordinary shares under employee stock plans (in shares)		5
Repurchases of ordinary shares	$ (1,144)				(1,090)	(1,090)
Repurchases of ordinary shares (in shares)	(24)	(23)
Adjustments Related to Tax Withholding for Share-based Compensation	$ (54)
Shares Paid for Tax Withholding for Share Based Compensation	(1)
Dividends to shareholders					(351)	(351)
Share-based compensation			65			65
Others			(4)
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests				0		4
Total Equity, Ending balance at Jan. 01, 2016	$ 1,821
Ending Balance (in shares) at Jan. 01, 2016		296
Total Seagate Technology plc Shareholders' Equity, Ending Balance at Jan. 01, 2016		$ 0	$ 5,836	$ (32)	$ (3,983)	$ 1,821

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	6 Months Ended
	Jan. 01, 2016
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies Organization Seagate Technology plc (the "Company") is a leading provider of electronic data storage technology and solutions. Its principal products are hard disk drives, commonly referred to as disk drives, hard drives or HDDs. In addition to HDDs, it produces a broad range of electronic data storage products including solid state hybrid drives ("SSHD"), solid state drives ("SSD"), PCIe cards and SATA controllers. Its storage technology portfolio also includes storage subsystems, high performance computing ("HPC") solutions, and data storage services. Hard disk drives are devices that store digitally encoded data on rapidly rotating disks with magnetic surfaces. Disk drives continue to be the primary medium of mass data storage due to their performance attributes, high quality and cost effectiveness. Complementing existing data center storage architecture, solid-state storage devices use integrated circuit assemblies as memory to store data, and most SSDs use NAND-based flash memory. In addition to HDDs and SSDs, SSHDs combine the features of SSDs and HDDs in the same unit, containing a large hard disk drive and an SSD cache to improve performance of frequently accessed data. The Company's products are designed for enterprise servers and storage systems in mission critical and nearline applications; client compute applications, where its products are designed primarily for desktop and mobile computing; and client non-compute applications, where its products are designed for a wide variety of end user devices such as digital video recorders ("DVRs"), personal data backup systems, portable external storage systems, digital media systems and surveillance systems. The Company's product and solution portfolio for the enterprise data storage industry includes storage enclosures, integrated application platforms and HPC data storage solutions. Its storage subsystems support a range of high-speed interconnect technologies to meet demanding cost and performance specifications. Its modular subsystem architecture allows it to support many segments within the networked storage market by enabling different specifications of storage subsystem designs to be created from a standard set of interlocking technology modules. Basis of Presentation and Consolidation The unaudited condensed consolidated financial statements include the accounts of the Company and all its wholly-owned and majority-owned subsidiaries, after elimination of intercompany transactions and balances. The preparation of financial statements in accordance with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the Company’s condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. The methods, estimates and judgments the Company uses in applying its most critical accounting policies have a significant impact on the results the Company reports in its condensed consolidated financial statements. The condensed consolidated financial statements reflect, in the opinion of management, all material adjustments necessary to present fairly the condensed consolidated financial position, results of operations, comprehensive income, cash flows and shareholders’ equity for the periods presented. Such adjustments are of a normal and recurring nature. Certain prior period amounts in the condensed consolidated financial statements and notes to the condensed consolidated financial statements have been reclassified to conform to the current period’s presentation. The Company’s Consolidated Financial Statements for the fiscal year ended July 3, 2015 , are included in its Annual Report on Form 10-K as filed with the United States Securities and Exchange Commission (“SEC”) on August 11, 2015 . The Company believes that the disclosures included in the unaudited condensed consolidated financial statements, when read in conjunction with its Consolidated Financial Statements as of July 3, 2015 , and the notes thereto, are adequate to make the information presented not misleading. The results of operations for the three and six months ended January 1, 2016 , are not necessarily indicative of the results of operations to be expected for any subsequent interim period in the Company’s fiscal year ending July 1, 2016 . The Company operates and reports financial results on a fiscal year of 52 or 53 weeks ending on the Friday closest to June 30. The three and six months ended January 1, 2016 consisted of 13 weeks and 26 weeks, respectively. The three and six months ended January 2, 2015 consisted of 14 weeks and 27 weeks, respectively. Fiscal year 2016 will be comprised of 52 weeks and will end on July 1, 2016 . The fiscal quarters ended January 1, 2016 , October 2, 2015 , and January 2, 2015 , are also referred to herein as the “ December 2015 quarter ”, the “ September 2015 quarter ”, and the “ December 2014 quarter ”, respectively. Summary of Significant Accounting Policies There have been no significant changes in the Company's significant accounting policies. Please refer to Note 1 of “Financial Statements and Supplementary Data” contained in Part II, Item 8 of the Company’s Annual Report on Form 10-K for the fiscal year ended July 3, 2015 , as filed with the SEC on August 11, 2015 for a discussion of the Company’s other significant accounting policies. Recently Issued Accounting Pronouncements In May 2014 and August 2015, the FASB issued ASU 2014-09 (ASC Topic 606) , Revenue from Contracts with Customers and ASU 2015-14 (ASC Topic 606) Revenue from Contracts with Customers, Deferral of the Effective Date, respectively. The ASU outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. It also requires entities to disclose both quantitative and qualitative information that enable financial statements users to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The amendments in this ASU are effective for fiscal years, and interim periods within those years, beginning after December 15, 2017. Early adoption is permitted for annual periods beginning after December 15, 2016. The Company is in the process of assessing the impact, if any, on its consolidated financial statements. In April 2015 and August 2015, the FASB issued ASU 2015-03 (ASC Subtopic 835-30), Interest-Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs and ASU 2015-15 (ASC Subtopic 835-30), Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements- Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting, respectively. The ASUs require that debt issuance costs related to a recognized debt liability, with the exception of those related to line-of-credit arrangements, be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. The amendments in these ASUs are effective for fiscal years, and interim periods within those years, beginning after December 15, 2015. Early adoption is permitted for financial statements that have not been previously issued. The adoption of this new guidance is not expected to have a material impact on the Company’s consolidated financial statements and disclosures. In July 2015, the FASB issued ASU 2015-11 (ASC Topic 330), Inventory: Simplifying the Measurement of Inventory. The amendments in this ASU require inventory measurement at the lower of cost and net realizable value. The amendments in this ASU are effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted by all entities as of the beginning of an interim or annual reporting period. The Company is in the process of assessing the impact, if any, of this ASU on its consolidated financial statements. In September 2015, the FASB issued ASU 2015-16 (ASC Topic 805), Business Combinations Simplifying the Accounting for Measurement-Period Adjustments . The amendments in this update require that an acquirer recognize measurement period adjustments in the period in which the adjustments are determined. The income effects of such measurement period adjustments are to be recorded in the same period’s financial statements but calculated as if the accounting had been completed as of the acquisition date. The impact of measurement period adjustments to earnings that relate to prior period financial statements are to be presented separately on the income statement or disclosed by line item. The amendments in this update are for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2015. Early adoption is permitted for public business entities for reporting periods for which financial statements have not yet been issued. The adoption of this new guidance is not expected to have a material impact on the Company’s consolidated financial statements and disclosures. In November 2015, the FASB issued ASU 2015-17 (ASC Topic 740), Income Taxes Balance Sheet Classification of Deferred Taxes. The amendments in this Update are effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted by all entities as of the beginning of an interim or annual reporting period. The Company early adopted this ASU for the December 2015 quarter on a prospective basis. See footnote 4 for disclosure of the financial statement impact of this adoption. In January 2016, the FASB issued ASU 2016-01 (ASC Subtopic 825-10), Financial Instruments- Overall Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in this ASU require entities to measure all investments in equity securities at fair value with changes recognized through net income. This requirement does not apply to investments that qualify for the equity method of accounting, to those that result in consolidation of the investee, or for which the entity meets a practicability exception to fair value measurement. Additionally, the amendments eliminate certain disclosure requirements related to financial instruments measured at amortized cost and add disclosures related to the measurement categories of financial assets and financial liabilities. The amendments in this ASU are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted for only certain portions of the ASU. The Company is in the process of assessing the impact, if any, on its consolidated financial statements.

Balance Sheet Information

Balance Sheet Information	6 Months Ended
	Jan. 01, 2016
Disclosure Text Block Supplement [Abstract]
Balance Sheet Information	Balance Sheet Information Investments The following table summarizes, by major type, the fair value and amortized cost of the Company’s investments as of January 1, 2016 : (Dollars in millions) Amortized Cost Unrealized Gain/(Loss) Fair Value Available-for-sale securities: Money market funds $ 212 $ — $ 212 Certificates of deposit 165 — 165 Corporate bonds 6 — 6 $ 383 $ — $ 383 Included in Cash and cash equivalents $ 370 Included in Short-term investments 6 Included in Other current assets 7 Total $ 383 As of January 1, 2016 , the Company’s Other current assets included $7 million in restricted cash and investments held as collateral at banks for various performance obligations. As of January 1, 2016 , the Company had no material available-for-sale securities that had been in a continuous unrealized loss position for a period greater than 12 months. The Company determined that no available-for-sale securities were other-than-temporarily impaired as of January 1, 2016 . The fair value and amortized cost of the Company’s investments classified as available-for-sale at January 1, 2016 , by remaining contractual maturity were as follows: (Dollars in millions) Amortized Cost Fair Value Due in less than 1 year $ 377 $ 377 Due in 1 to 5 years 6 6 Thereafter — — Total $ 383 $ 383 The following table summarizes, by major type, the fair value and amortized cost of the Company’s investments as of July 3, 2015 : (Dollars in millions) Amortized Cost Unrealized Gain/(Loss) Fair Value Available-for-sale securities: Money market funds $ 1,203 $ — $ 1,203 Certificates of deposit 867 — 867 Corporate bonds 6 — 6 Total $ 2,076 $ — $ 2,076 Included in Cash and cash equivalents $ 2,063 Included in Short-term investments 6 Included in Other current assets 7 Total $ 2,076 As of July 3, 2015 , the Company’s Other current assets included $7 million in restricted cash and investments held as collateral at banks for various performance obligations. As of July 3, 2015 , the Company had no material available-for-sale securities that had been in a continuous unrealized loss position for a period greater than 12 months. The Company determined no available-for-sale securities were other-than-temporarily impaired as of July 3, 2015 . Inventories The following table provides details of the inventory balance sheet item: (Dollars in millions) January 1, July 3, Raw materials and components $ 330 $ 352 Work-in-process 281 239 Finished goods 435 402 $ 1,046 $ 993 Property, Equipment and Leasehold Improvements, net The components of property, equipment and leasehold improvements, net, were as follows: (Dollars in millions) January 1, July 3, Property, equipment and leasehold improvements $ 9,845 $ 9,630 Accumulated depreciation and amortization (7,615 ) (7,352 ) $ 2,230 $ 2,278 Accumulated Other Comprehensive Income (Loss) (“AOCI”) The components of AOCI, net of tax, were as follows: (Dollars in millions) Unrealized Gains (Losses) on Cash Flow Hedges Unrealized Gains (Losses) on Marketable Securities (a) Unrealized Gains (Losses) on post-retirement plans Foreign currency translation adjustments Total Balance at July 3, 2015 $ 1 $ — $ (15 ) $ (16 ) $ (30 ) Other comprehensive income (loss) before reclassifications (2 ) — 1 (3 ) (4 ) Amounts reclassified from AOCI 2 — — — 2 Other comprehensive income (loss) — — 1 (3 ) (2 ) Balance at January 1, 2016 $ 1 $ — $ (14 ) $ (19 ) $ (32 ) Balance at June 27, 2014 $ (1 ) $ — $ (10 ) $ 9 $ (2 ) Other comprehensive income (loss) before reclassifications (9 ) — — (16 ) (25 ) Amounts reclassified from AOCI 2 — — — 2 Other comprehensive income (loss) (7 ) — — (16 ) (23 ) Balance at January 2, 2015 $ (8 ) $ — $ (10 ) $ (7 ) $ (25 ) ___________________________________________ (a) The cost of a security sold or the amount reclassified out of AOCI into earnings was determined using specific identification.

Debt

Debt	6 Months Ended
	Jan. 01, 2016
Debt Disclosure [Abstract]
Debt	Debt Short-Term Borrowings The Company and its subsidiary Seagate HDD Cayman have entered into a Credit Agreement providing the Company with a $700 million senior secured revolving credit facility (the "Revolving Credit Facility"). On January 15, 2015, pursuant to the Third Amendment to the Credit Agreement, the commitments available under the Revolving Credit Facility were increased from $500 million to $700 million and the maturity date was extended until January 15, 2020, provided that if the Company does not have Investment Grade Ratings (as defined in the Credit Agreement) on August 15, 2018, then the maturity date will be August 16, 2018 unless certain extension conditions have been satisfied. This Credit Agreement that was originally entered into by the Company and Seagate HDD Cayman on January 18, 2011 was subsequently amended with the Second Amendment to the Credit Agreement on April 30, 2013, which increased the commitments available under the Revolving Credit Facility from $350 million to $500 million . The loans made under the Credit Agreement will bear interest at a rate of LIBOR plus a variable margin that will be determined based on the corporate credit rating of the Company. The Company and certain of its material subsidiaries fully and unconditionally guarantee the Revolving Credit Facility. The Revolving Credit Facility is available for cash borrowings and for the issuance of letters of credit up to a sub-limit of $75 million . As of January 1, 2016 , no borrowings had been drawn or letters of credit utilized under the Revolving Credit Facility. Long-Term Debt $800 million Aggregate Principal Amount of 3.75% Senior Notes due November 2018 (the “2018 Notes”). The interest on the 2018 Notes is payable semi-annually on May 15 and November 15 of each year. The issuer under the 2018 Notes is Seagate HDD Cayman, and the obligations under the 2018 Notes are fully and unconditionally guaranteed, on a senior unsecured basis, by the Company. $600 million Aggregate Principal Amount of 7.00% Senior Notes due November 2021 (the “2021 Notes”). The interest on the 2021 Notes is payable semi-annually on January 1 and July 1 of each year. The issuer under the 2021 Notes is Seagate HDD Cayman, and the obligations under the 2021 Notes are fully and unconditionally guaranteed, on a senior unsecured basis, by the Company. $1 billion Aggregate Principal Amount of 4.75% Senior Notes due June 2023 (the “2023 Notes”). The interest on the 2023 Notes is payable semi-annually on June 1 and December 1 of each year. The issuer under the 2023 Notes is Seagate HDD Cayman, and the obligations under the 2023 Notes are fully and unconditionally guaranteed, on a senior unsecured basis, by the Company. $1 billion Aggregate Principal Amount of 4.75% Senior Notes due January 2025 (the “2025 Notes”) . The interest on the 2025 Notes is payable semi-annually on January 1 and July 1 of each year. The issuer under the 2025 Notes is Seagate HDD Cayman, and the obligations under the 2025 Notes are fully and unconditionally guaranteed, on a senior unsecured basis, by the Company. $700 million Aggregate Principal Amount of 4.875% Senior Notes due June 2027 (the “2027 Notes”) . The interest on the Notes is payable semi-annually on June 1 and December 1 of each year, which commenced on December 1, 2015. The issuer under the 2027 Notes is Seagate HDD Cayman, and the obligations under the 2027 Notes are fully and unconditionally guaranteed, on a senior unsecured basis, by the Company. $500 million Aggregate Principal Amount of 5.75% Senior Notes due December 2034 (the “2034 Notes”) . The interest on the 2034 Notes is payable semi-annually on June 1 and December 1 of each year. The issuer under the 2034 Notes is Seagate HDD Cayman, and the obligations under the 2034 Notes are fully and unconditionally guaranteed, on a senior unsecured basis, by the Company. At January 1, 2016 , future principal payments on long-term debt were as follows (in millions): Fiscal Year Amount Remainder of 2016 $ — 2017 — 2018 — 2019 800 2020 — Thereafter 3,343 $ 4,143

Income Taxes

Income Taxes	6 Months Ended
	Jan. 01, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company recorded an income tax provision of $15 million and $13 million in the three and six months ended January 1, 2016 . The income tax provision for the six months ended January 1, 2016 included approximately $3 million of net discrete tax benefits primarily for the release of tax reserves due to the expiration of certain statutes of limitation. The Company's income tax provision recorded for the three and six months ended January 1, 2016 differed from the provision from income taxes that would be derived by applying the Irish statutory rate of 25% to income before income taxes, primarily due to the net effect of (i) tax benefits related to non-U.S. earnings generated in jurisdictions that are subject to tax holidays or tax incentive programs and are considered indefinitely reinvested outside of Ireland and (ii) a decrease in valuation allowance for certain U.S. deferred tax assets. Consistent with the intent of ASU 2015-17 to simplify the presentation of deferred income taxes, the Company has elected to adopt ASU 2015-17 on a prospective basis as of the second quarter, fiscal year 2016. Prior periods were not retrospectively adjusted. As a result of this change in accounting principle, $120 million of the Company’s deferred tax assets were reclassified from current to non-current. On December 18, 2015, the Protecting Americans from Tax Hikes (PATH) Act of 2015 was enacted. Among other provisions, the PATH Act retroactively reinstated and permanently extended the federal Research and Development (R&D) tax credit from December 31, 2014. The permanent extension of the R&D credit had no immediate impact on the Company’s income tax provision due to valuation allowances on its U.S. deferred tax assets. None of the other PATH Act changes are expected to have a material impact on the Company’s income tax provision. During the six months ended January 1, 2016 , the Company’s unrecognized tax benefits excluding interest and penalties decreased by approximately $6 million to $77 million . The unrecognized tax benefits that, if recognized, would impact the effective tax rate was $77 million at January 1, 2016 , subject to certain future valuation allowance reversals. During the 12 months beginning January 2, 2016, the Company expects that its unrecognized tax benefits could be reduced by approximately $30 million primarily as a result of the expiration of certain statutes of limitation. The Company is subject to taxation in many jurisdictions globally and is required to file U.S. federal, U.S. state and non-U.S. income tax returns. In December 2015, the Company effectively settled all disputed issues with the IRS associated with its U.S. federal income tax returns for fiscal years 2008, 2009 and 2010. This effective settlement did not have a material impact on the Company’s financial statements. As a result of this settlement and expiration of the fiscal year 2011 statute of limitation, the Company is no longer subject to tax examination of U.S. federal income tax returns for years prior to fiscal year 2012. The Company recorded an income tax provision of $193 million and $203 million in the three and six months ended January 2, 2015 , respectively. The income tax provision for the three and six months ended January 2, 2015 included approximately $181 million of net tax expense due to the final audit assessment received from the Jiangsu Province State Tax Bureau of the People's Republic of China (China assessment) for calendar years 2007 through 2013. The Company’s income tax provision recorded for the three and six months ended January 2, 2015 differed from the provision for income taxes that would be derived by applying the Irish statutory rate of 25% to income before income taxes, primarily due to the net effect of (i) tax benefits related to non-U.S. earnings generated in jurisdictions that are subject to tax holidays or tax incentive programs and are considered indefinitely reinvested outside of Ireland, (ii) tax expense associated with the China assessment, and (iii) a decrease in valuation allowance for certain U.S. deferred tax assets.

Acquisitions

Acquisitions	6 Months Ended
	Jan. 01, 2016
Business Combinations [Abstract]
Fair value of assets acquired and liabilities assumed	The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Inventories $ 37 Property, plant and equipment 22 Intangible assets 141 Other assets 6 Goodwill 337 Total assets 543 Liabilities (93 ) Total liabilities (93 ) Total $ 450
Business Combination Disclosure	Acquisitions Dot Hill Systems Corp. On October 6, 2015 , the Company acquired all of the outstanding shares of Dot Hill Systems Corp. (“Dot Hill”), a supplier of software and hardware storage systems. The Company paid $9.75 per share, or $674 million , in cash for the acquisition. The acquisition of Dot Hill further expands the Company's OEM-focused cloud storage systems business and advances the Company's strategic efforts. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Cash and cash equivalents $ 40 Accounts receivable, net 48 Inventories 21 Other current and non-current assets 7 Property, plant and equipment 10 Intangible assets 252 Goodwill 364 Total assets 742 Accounts payable, accrued expenses and other (68 ) Total liabilities (68 ) Total $ 674 The following table shows the fair value of the separately identifiable intangible assets at the time of acquisition and the period over which each intangible asset will be amortized: (Dollars in millions) Fair Value Weighted- Existing technology $ 164 5.0 years Customer relationships 71 7.0 years Trade names 3 5.0 years Total amortizable intangible assets acquired 238 5.5 years In-process research and development 14 Total acquired identifiable intangible assets $ 252 The recognized goodwill, which is not deductible for income tax purposes, is primarily attributable to cost synergies expected to arise after the acquisition and the benefits the Company expects to derive from enhanced market opportunities. The expenses related to the acquisition of Dot Hill in for the six months ended January 1, 2016 , which are included within Marketing and administrative expense on the Consolidated Statement of Operations, are not significant. The amounts of revenue and earnings of Dot Hill included in the Company's Consolidated Statement of Operations from the acquisition date are not significant. LSI's Flash Business On September 2, 2014, the Company completed the acquisition of certain assets and liabilities of LSI Corporation's ("LSI") Accelerated Solutions Division and Flash Components Division (collectively, the "Flash Business") from Avago Technologies Limited for $450 million in cash. The transaction is intended to strengthen Seagate's strategy to deliver a full suite of storage solutions, providing Seagate with established enterprise PCIe flash and SSD controller capabilities to deliver solutions for the growing flash storage market. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Inventories $ 37 Property, plant and equipment 22 Intangible assets 141 Other assets 6 Goodwill 337 Total assets 543 Liabilities (93 ) Total liabilities (93 ) Total $ 450 The following table shows the fair value of the separately identifiable intangible assets at the time of acquisition and the weighted-average period over which intangible assets within each category will be amortized: (Dollars in millions) Fair Value Weighted- Existing technology $ 84 3.5 years Customer relationships 40 3.8 years Trade names 17 4.5 years Total acquired identifiable intangible assets $ 141 The goodwill recognized is primarily attributable to the benefits the Company expects to derive from enhanced market opportunities, and is not deductible for income tax purposes. The Company incurred approximately $1 million of expenses related to the acquisition of LSI's Flash Business during the six months ended January 2, 2015 , which were included within Marketing and administrative expense on the Company's Condensed Consolidated Statement of Operations. The amounts of revenue and earnings of LSI's Flash Business included in the Company's Consolidated Statement of Operations from the acquisition date through January 2, 2015 were not significant. Xyratex Ltd On March 31, 2014, the Company acquired all of the outstanding shares of Xyratex Ltd (“Xyratex”), a leading provider of data storage technology. The Company paid $13.25 per share, or approximately $376 million in cash for the acquisition. The acquisition of Xyratex further strengthens the Company’s vertically integrated supply and manufacturing chain for disk drives and provides access to important capital requirements, as well as expands the Company’s storage solutions portfolio. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Cash and cash equivalents $ 91 Accounts receivable, net 67 Inventories 111 Other current and non-current assets 28 Property, plant and equipment 55 Intangible assets 80 Goodwill 60 Total assets 492 Accounts payable and accrued expenses (116 ) Total liabilities (116 ) Total $ 376 The following table shows the fair value of the separately identifiable intangible assets at the time of acquisition and the period over which each intangible asset will be amortized: (Dollars in millions) Fair Value Weighted- Existing technology $ 23 5.5 years Customer relationships 18 3.9 years Total amortizable intangible assets acquired 41 4.8 years In-process research and development 39 Total acquired identifiable intangible assets $ 80 The goodwill recognized is primarily attributable to the synergies expected to arise after the acquisition, and is not deductible for income tax purposes. Dot Hill Systems Corp. On October 6, 2015 , the Company acquired all of the outstanding shares of Dot Hill Systems Corp. (“Dot Hill”), a supplier of software and hardware storage systems. The Company paid $9.75 per share, or $674 million , in cash for the acquisition. The acquisition of Dot Hill further expands the Company's OEM-focused cloud storage systems business and advances the Company's strategic efforts. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Cash and cash equivalents $ 40 Accounts receivable, net 48 Inventories 21 Other current and non-current assets 7 Property, plant and equipment 10 Intangible assets 252 Goodwill 364 Total assets 742 Accounts payable, accrued expenses and other (68 ) Total liabilities (68 ) Total $ 674 The following table shows the fair value of the separately identifiable intangible assets at the time of acquisition and the period over which each intangible asset will be amortized: (Dollars in millions) Fair Value Weighted- Existing technology $ 164 5.0 years Customer relationships 71 7.0 years Trade names 3 5.0 years Total amortizable intangible assets acquired 238 5.5 years In-process research and development 14 Total acquired identifiable intangible assets $ 252 The recognized goodwill, which is not deductible for income tax purposes, is primarily attributable to cost synergies expected to arise after the acquisition and the benefits the Company expects to derive from enhanced market opportunities. The expenses related to the acquisition of Dot Hill in for the six months ended January 1, 2016 , which are included within Marketing and administrative expense on the Consolidated Statement of Operations, are not significant. The amounts of revenue and earnings of Dot Hill included in the Company's Consolidated Statement of Operations from the acquisition date are not significant.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	6 Months Ended
	Jan. 01, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	6. Goodwill and Other Intangible Assets Goodwill The changes in the carrying amount of goodwill for the six months ended January 1, 2016 , are as follows: (Dollars in millions) Amount Balance at July 3, 2015 $ 874 Goodwill acquired 364 Foreign currency translation effect — Balance at January 1, 2016 $ 1,238 Other Intangible Assets Other intangible assets consist primarily of existing technology, customer relationships and in-process research and development acquired in business combinations. With the exception of in-process research and development, acquired intangibles are amortized on a straight-line basis over the respective estimated useful lives of the assets. Amortization is charged to Operating expenses in the Condensed Consolidated Statements of Operations. In-process research and development has been determined to have an indefinite useful life and is not amortized, but instead tested for impairment annually or more frequently if events or changes in circumstances indicate that the asset might be impaired. If the carrying amount of in-process research and development exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. There were no impairment charges recognized for in-process research and development. Upon completion of the in-process research and development, the related assets will be accounted for as finite-lived intangible assets, and will be amortized over their useful lives. The carrying value of other intangible assets subject to amortization as of January 1, 2016 , is set forth in the following table: (Dollars in millions) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Useful Life Existing technology $ 311 $ (57 ) $ 254 4.5 years Customer relationships 510 (283 ) 227 3.4 years Trade names 29 (10 ) 19 3.0 years Other intangible assets 28 (7 ) 21 3.7 years Total amortizable other intangible assets $ 878 $ (357 ) $ 521 3.9 years The carrying value of in-process research and development not subject to amortization was $14 million as of January 1, 2016 . The carrying value of other intangible assets subject to amortization as of July 3, 2015 is set forth in the following table: (Dollars in millions) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Useful Life Existing technology $ 191 $ (69 ) $ 122 4.1 years Customer relationships 487 (282 ) 205 2.4 years Trade names 27 (7 ) 20 3.2 years Other intangible assets 27 (4 ) 23 4.2 years Total amortizable other intangible assets $ 732 $ (362 ) $ 370 3.1 years For the three and six months ended January 1, 2016 , amortization expense of other intangible assets was $46 million and $87 million . For the three and six months ended January 2, 2015 , amortization expense of other intangible assets was $39 million and $72 million . As of January 1, 2016 , expected amortization expense for other intangible assets for each of the next five fiscal years and thereafter is as follows: (Dollars in millions) Amount Remainder of 2016 $ 87 2017 166 2018 108 2019 68 2020 50 Thereafter 42 $ 521

Restructuring and Exit Costs (N

Restructuring and Exit Costs (Notes)	6 Months Ended
	Jan. 01, 2016
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities Disclosure [Text Block]	7. Restructuring and Exit Costs For the three and six months ended January 1, 2016 , the Company recorded total restructuring charges of approximately $17 million and $76 million , respectively, comprised primarily of charges related to employee termination costs and facility exit costs associated with restructuring of our work force during the fiscal year. The Company's significant restructuring plans are described below. All restructuring charges are reported in Restructuring and other, net on the Condensed Consolidated Statements of Operations. September 2015 Plan - On September 4, 2015, the Company committed to a restructuring plan (the “September 2015 Plan”) intended to realign its cost structure with the current macroeconomic business environment. The September 2015 Plan included reducing worldwide headcount by approximately 1,000 employees. The September 2015 Plan was largely completed by the fiscal quarter ended January 1, 2016. For the three months ended January 1, 2016 , the Company recorded total restructuring charges of approximately $9 million related to the September 2015 Plan, comprised of approximately $2 million for employee termination costs and $7 million for facility exit costs. For the six months ended January 1, 2016 , the Company recorded total restructuring charges of approximately $65 million related to the September 2015 Plan, comprised of approximately $57 million for employee termination costs and $8 million facility exit costs, respectively. For the three and six months ended January 1, 2016 , the Company made cash payments of $41 million and $46 million , respectively, comprised primarily of employee termination costs related to the September 2015 Plan. Other Restructuring and Exit Costs - For the three and six months ended January 1, 2016 , the Company recorded restructuring charges of approximately $8 million and $11 million , respectively, and made cash payments of $9 million and $18 million , respectively, related to other restructuring plans.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jan. 01, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities Disclosure	Derivative Financial Instruments The Company is exposed to foreign currency exchange rate, interest rate, and to a lesser extent, equity price risks relating to its ongoing business operations. The Company enters into foreign currency forward exchange contracts in order to manage the foreign currency exchange rate risk on forecasted expenses denominated in foreign currencies and to mitigate the remeasurement risk of certain foreign currency denominated liabilities. The Company's accounting policies for these instruments are based on whether the instruments are classified as designated or non-designated hedging instruments. The Company records all derivatives in the Condensed Consolidated Balance Sheets at fair value. The changes in the fair value of the effective portions of designated cash flow hedges are recorded in Accumulated other comprehensive loss until the hedged item is recognized in earnings. Derivatives that are not designated as hedging instruments and the ineffective portions of cash flow hedges are adjusted to fair value through earnings. The amounts of net unrealized loss on cash flow hedges were immaterial as of January 1, 2016 and July 3, 2015 . The Company de-designates its cash flow hedges when the forecasted hedged transactions are realized or it is probable the forecasted hedged transactions will not occur in the initially identified time period. At such time, the associated gains and losses deferred in Accumulated other comprehensive income (loss) are reclassified immediately into earnings and any subsequent changes in the fair value of such derivative instruments are immediately reflected in earnings. The Company did not recognize any net gains or losses related to the loss of hedge designation on discontinued cash flow hedges during the three and six months ended January 1, 2016 . As of January 1, 2016 , the Company’s existing foreign currency forward exchange contracts mature within 12 months . The deferred amount currently recorded in Accumulated other comprehensive income (loss) expected to be recognized into earnings over the next 12 months is immaterial. The following tables show the total notional value of the Company’s outstanding foreign currency forward exchange contracts as of January 1, 2016 and July 3, 2015 : As of January 1, 2016 (Dollars in millions) Contracts Designated as Hedges Contracts Not Designated as Hedges Singapore Dollars $ — $ 35 British Pound Sterling 51 — Thai Baht — 26 Malaysian Ringgit — 5 Euro — 2 $ 51 $ 68 As of July 3, 2015 (Dollars in millions) Contracts Designated as Hedges Contracts Not Designated as Hedges British Pound Sterling $ 35 $ — Singapore dollars 23 42 Thai Baht 18 48 Malaysian Ringgit 12 15 Chinese Renminbi 5 16 Euro — 13 $ 93 $ 134 The Company is subject to equity market risks due to changes in the fair value of the notional investments selected by its employees as part of its Non-qualified Deferred Compensation Plan—the Seagate Deferred Compensation Plan (the “SDCP”). In fiscal year 2014, the Company entered into a Total Return Swap (“TRS”) in order to manage the equity market risks associated with the SDCP liabilities. The Company pays a floating rate, based on LIBOR plus an interest rate spread, on the notional amount of the TRS. The TRS is designed to substantially offset changes in the SDCP liability due to changes in the value of the investment options made by employees. As of January 1, 2016 , the notional investments underlying the TRS amounted to $95 million . The contract term of the TRS is through January 2016, and is settled on a monthly basis, therefore limiting counterparty performance risk. The Company renewed the contract term through January 2017 under materially the same terms. The Company did not designate the TRS as a hedge. Rather, the Company records all changes in the fair value of the TRS to earnings to offset the market value changes of the SDCP liabilities. The following tables show the Company’s derivative instruments measured at fair value as reflected in the Condensed Consolidated Balance Sheet as of January 1, 2016 and July 3, 2015 : As of January 1, 2016 Asset Derivatives Liability Derivatives (Dollars in millions) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments: Foreign currency forward exchange contracts Other current assets $ — Accrued expenses $ — Derivatives not designated as hedging instruments: Foreign currency forward exchange contracts Other current assets — Accrued expenses (1 ) Total return swap Other current assets — Accrued expenses (2 ) Total derivatives $ — $ (3 ) As of July 3, 2015 Asset Derivatives Liability Derivatives (Dollars in millions) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments: Foreign currency forward exchange contracts Other current assets $ 2 Accrued expenses $ (1 ) Derivatives not designated as hedging instruments: Foreign currency forward exchange contracts Other current assets — Accrued expenses (3 ) Total return swap Other current assets 1 Accrued expenses — Total derivatives $ 3 $ (4 ) The following tables show the effect of the Company’s derivative instruments on the Condensed Consolidated Statement of Comprehensive Income and the Condensed Consolidated Statement of Operations for the three and six months ended January 1, 2016 : (Dollars in millions) Derivatives Designated as Hedging Instruments Amount of Gain or (Loss) Recognized in OCI on Derivatives (Effective Portion) Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) Location of Gain or (Loss) Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing) Amount of Gain or (Loss) Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing) (a) For the Three Months For the Six Months For the Three Months For the Six Months For the Three Months For the Six Months Foreign currency forward exchange contracts $ — $ (2 ) Cost of revenue $ (1 ) $ (2 ) Cost of revenue $ — $ — Derivatives Not Designated as Hedging Instruments Location of Gain or (Loss) Recognized in Income on Derivative Amount of Gain or (Loss) Recognized in Income on Derivative For the Three Months For the Six Months Foreign currency forward exchange contracts Other, net $ 1 $ (4 ) Total return swap Operating expenses 1 (4 ) ___________________________________________ (a) The amount of gain or (loss) recognized in income represents $0 related to the ineffective portion of the hedging relationships and $0 related to the amount excluded from the assessment of hedge effectiveness for the three and six months ended January 1, 2016 . The following tables show the effect of the Company’s derivative instruments on the Condensed Consolidated Statement of Comprehensive Income and the Condensed Consolidated Statement of Operations for the three and six months January 2, 2015 : (Dollars in millions) Derivatives Designated as Hedging Instruments Amount of Gain or (Loss) Recognized in OCI on Derivatives (Effective Portion) Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) Location of Gain or (Loss) Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing) Amount of Gain or (Loss) Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing) (a) For the Three Months For the Six Months For the Three Months For the Six Months For the Three Months For the Six Months Foreign currency forward exchange contracts $ (6 ) $ (10 ) Cost of revenue $ (2 ) $ (2 ) Cost of revenue $ (1 ) $ — Derivatives Not Designated as Hedging Instruments Location of Gain or (Loss) Recognized in Income on Derivatives Amount of Gain or (Loss) Recognized in Income on Derivatives For the Three Months For the Six Months Foreign currency forward exchange contracts Other, net $ (1 ) $ (5 ) Total return swap Operating expenses 2 — ___________________________________________ (a) The amount of gain or (loss) recognized in income represents $0 related to the ineffective portion of the hedging relationships and $(1) million and $0 related to the amount excluded from the assessment of hedge effectiveness for the three and six months January 2, 2015 , respectively.

Fair Value

Fair Value	6 Months Ended
	Jan. 01, 2016
Fair Value Disclosures [Abstract]
Fair Value	Fair Value Measurement of Fair Value Fair value is defined as the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required to be recorded at fair value, the Company considers the principal or most advantageous market in which it would transact and it considers assumptions that market participants would use when pricing the asset or liability. Fair Value Hierarchy A fair value hierarchy is based on whether the market participant assumptions used in determining fair value are obtained from independent sources (observable inputs) or reflects the Company’s own assumptions of market participant valuation (unobservable inputs). A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The three levels of inputs that may be used to measure fair value: Level 1 — Quoted prices in active markets that are unadjusted and accessible at the measurement date for identical, unrestricted assets or liabilities; Level 2 — Quoted prices for identical assets and liabilities in markets that are inactive; quoted prices for similar assets and liabilities in active markets or financial instruments for which significant inputs are observable, either directly or indirectly; or Level 3 — Prices or valuations that require inputs that are both unobservable and significant to the fair value measurement. The Company considers an active market to be one in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis, and views an inactive market as one in which there are few transactions for the asset or liability, the prices are not current, or price quotations vary substantially either over time or among market makers. Where appropriate the Company’s or the counterparty’s non-performance risk is considered in determining the fair values of liabilities and assets, respectively. Items Measured at Fair Value on a Recurring Basis The following tables present the Company’s assets and liabilities, by financial instrument type and balance sheet line item that are measured at fair value on a recurring basis, excluding accrued interest components, as of January 1, 2016 : Fair Value Measurements at Reporting Date Using (Dollars in millions) Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Balance Assets: Money market funds $ 210 $ — $ — $ 210 Certificates of deposit — 160 — 160 Corporate bonds — 6 — 6 Total cash equivalents and short-term investments 210 166 — 376 Restricted cash and investments: Money market funds 2 — — 2 Certificates of deposit — 5 — 5 Total assets $ 212 $ 171 $ — $ 383 Liabilities: Derivative liabilities $ — $ (3 ) $ — $ (3 ) Total liabilities $ — $ (3 ) $ — $ (3 ) Fair Value Measurements at Reporting Date Using (Dollars in millions) Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Balance Assets: Cash and cash equivalents $ 210 $ 160 $ — $ 370 Short-term investments — 6 — 6 Other current assets 2 5 — 7 Total assets $ 212 $ 171 $ — $ 383 Liabilities: Accrued expenses $ — $ (3 ) $ — $ (3 ) Total liabilities $ — $ (3 ) $ — $ (3 ) The following tables present the Company’s assets and liabilities, by financial instrument type and balance sheet line item that are measured at fair value on a recurring basis, excluding accrued interest components, as of July 3, 2015 : Fair Value Measurements at Reporting Date Using (Dollars in millions) Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Balance Assets: Money market funds $ 1,201 $ — $ — $ 1,201 Certificates of deposit — 862 — 862 Corporate bonds — 6 — 6 Total cash equivalents and short-term investments 1,201 868 — 2,069 Restricted cash and investments: Money market funds 2 — — 2 Certificates of deposit — 5 — 5 Derivative assets — 3 — 3 Total assets $ 1,203 $ 876 $ — $ 2,079 Liabilities: Derivative liabilities $ — $ (4 ) $ — $ (4 ) Total liabilities $ — $ (4 ) $ — $ (4 ) Fair Value Measurements at Reporting Date Using (Dollars in millions) Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Balance Assets: Cash and cash equivalents $ 1,201 $ 862 $ — $ 2,063 Short-term investments — 6 — 6 Other current assets 2 8 — 10 Total assets $ 1,203 $ 876 $ — $ 2,079 Liabilities: Accrued expenses $ — $ (4 ) $ — $ (4 ) Total liabilities $ — $ (4 ) $ — $ (4 ) The Company classifies items in Level 1 if the financial assets consist of securities for which quoted prices are available in an active market. The Company classifies items in Level 2 if the financial asset or liability is valued using observable inputs. The Company uses observable inputs including quoted prices in active markets for similar assets or liabilities. Level 2 assets include: agency bonds, corporate bonds, commercial paper, municipal bonds, U.S. Treasuries and certificates of deposits. These debt investments are priced using observable inputs and valuation models which vary by asset class. The Company uses a pricing service to assist in determining the fair values of all of its cash equivalents and short-term investments. For the cash equivalents and short-term investments in the Company's portfolio, multiple pricing sources are generally available. The pricing service uses inputs from multiple industry standard data providers or other third party sources and various methodologies, such as weighting and models, to determine the appropriate price at the measurement date. The Company corroborates the prices obtained from the pricing service against other independent sources and, as of January 1, 2016 , has not found it necessary to make any adjustments to the prices obtained. The Company's derivative financial instruments are also classified within Level 2. The Company's derivative financial instruments consist of foreign currency forward exchange contracts and the TRS. The Company recognizes derivative financial instruments in its consolidated financial statements at fair value. The Company determines the fair value of these instruments by considering the estimated amount it would pay or receive to terminate these agreements at the reporting date. As of January 1, 2016 and July 3, 2015 , the Company had no Level 3 assets or liabilities measured at fair value on a recurring basis. Items Measured at Fair Value on a Non-Recurring Basis The Company enters into certain strategic investments for the achievement of business and strategic objectives. Strategic investments in equity securities where the Company does not have the ability to exercise significant influence over the investees are recorded at cost and are included in Other assets, net in the Condensed Consolidated Balance Sheets, and are periodically analyzed to determine whether or not there are indicators of impairment. The carrying value of the Company’s strategic investments at January 1, 2016 and July 3, 2015 totaled $109 million and $120 million , respectively, and consisted primarily of privately held equity securities without a readily determinable fair value. In the six months ended January 1, 2016 , the Company determined that a certain equity investment accounted for under the cost method was other-than-temporarily impaired, and recognized a charge of $10 million in order to write down the carrying amount of the investment to zero. Since there was no active market for the equity securities of the investee, the Company estimated fair value of the investee by analyzing the underlying cash flows and future prospects of the investee. This amount was recorded in Other, net in the Condensed Consolidated Statement of Operations for the six months ended January 1, 2016 . The Company did not record any material impairment charges in the three months ended January 1, 2016 . The Company did not record any material impairment charges in the three and six months ended January 2, 2015 . Other Fair Value Disclosures The Company’s debt is carried at amortized cost. The fair value of the Company’s debt is derived using the closing price as of the date of valuation, which takes into account the yield curve, interest rates, and other observable inputs. Accordingly, these fair value measurements are categorized as Level 2. The following table presents the fair value and amortized cost of the Company’s debt in order of maturity: January 1, 2016 July 3, 2015 (Dollars in millions) Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value 3.75% Senior Notes due November 2018 $ 800 $ 807 $ 800 $ 828 7.00% Senior Notes due November 2021 158 164 158 170 4.75% Senior Notes due June 2023 990 905 1,000 1,016 4.75% Senior Notes due January 2025 995 847 1,000 995 4.875% Senior Notes due June 2027 698 567 698 675 5.75% Senior Notes due December 2034 499 350 499 491 Long-term debt $ 4,140 $ 3,640 $ 4,155 $ 4,175 Less short-term borrowings and current portion of long-term debt — — — — Long-term debt, less current portion $ 4,140 $ 3,640 $ 4,155 $ 4,175

Shareholders' Equity

Shareholders' Equity	6 Months Ended
	Jan. 01, 2016
Equity [Abstract]
Shareholders' Equity	Equity Share Capital The Company’s authorized share capital is $13,500 and consists of 1,250,000,000 ordinary shares, par value $0.00001 , of which 296,258,168 shares were outstanding as of January 1, 2016 , and 100,000,000 preferred shares, par value $0.00001 , of which none were issued or outstanding as of January 1, 2016 . Ordinary shares —Holders of ordinary shares are entitled to receive dividends when and as declared by the Company’s board of directors (the “Board of Directors”). Upon any liquidation, dissolution, or winding up of the Company, after required payments are made to holders of preferred shares, any remaining assets of the Company will be distributed ratably to holders of the preferred and ordinary shares. Holders of shares are entitled to one vote per share on all matters upon which the ordinary shares are entitled to vote, including the election of directors. Preferred shares —The Company may issue preferred shares in one or more series, up to the authorized amount, without shareholder approval. The Board of Directors is authorized to establish from time to time the number of shares to be included in each series, and to fix the rights, preferences and privileges of the shares of each wholly unissued series and any of its qualifications, limitations or restrictions. The Board of Directors can also increase or decrease the number of shares of a series, but not below the number of shares of that series then outstanding, without any further vote or action by the shareholders. The Board of Directors may authorize the issuance of preferred shares with voting or conversion rights that could harm the voting power or other rights of the holders of the ordinary shares. The issuance of preferred shares, while providing flexibility in connection with possible acquisitions and other corporate purposes, could, among other things, have the effect of delaying, deferring or preventing a change in control of the Company and might harm the market price of its ordinary shares and the voting and other rights of the holders of ordinary shares. Repurchases of Equity Securities On July 24, 2013, the Board of Directors authorized the Company to repurchase $2.5 billion of its outstanding ordinary shares. On April 22, 2015, the Board of Directors authorized the Company to repurchase an additional $2.0 billion of its outstanding ordinary shares. All repurchases are effected as redemptions in accordance with the Company’s Articles of Association. As of January 1, 2016 , $1.8 billion remained available for repurchase under the existing repurchase authorization limit. The following table sets forth information with respect to repurchases of the Company’s shares during the six months ended January 1, 2016 : (In millions) Number of Shares Repurchased Dollar Value of Shares Repurchased Repurchases of Ordinary Shares 23 $ 1,090 Tax Withholding Related to Vesting of Equity Awards 1 54 Total 24 $ 1,144

Compensation

Compensation	6 Months Ended
	Jan. 01, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Compensation	Compensation The Company recorded approximately $32 million and $65 million of stock-based compensation expense during the three and six months ended January 1, 2016 , respectively. The Company recorded approximately $31 million and $73 million of stock-based compensation expense during the three and six months ended January 2, 2015 , respectively.

Guarantees

Guarantees	6 Months Ended
	Jan. 01, 2016
Guarantees [Abstract]
Financial Guarantees and Warranties	12. Guarantees Indemnifications to Officers and Directors On May 4, 2009, Seagate Technology, an exempted company incorporated with limited liability under the laws of the Cayman Islands (“Seagate-Cayman”), then the parent company, entered into a new form of indemnification agreement (the “Revised Indemnification Agreement”) with its officers and directors of Seagate-Cayman and its subsidiaries (each, an “Indemnitee”). The Revised Indemnification Agreement provides indemnification in addition to any of Indemnitee's indemnification rights under Seagate-Cayman's Articles of Association, applicable law or otherwise, and indemnifies an Indemnitee for certain expenses (including attorneys' fees), judgments, fines and settlement amounts actually and reasonably incurred by him or her in any action or proceeding, including any action by or in the right of Seagate-Cayman or any of its subsidiaries, arising out of his or her service as a director, officer, employee or agent of Seagate-Cayman or any of its subsidiaries or of any other entity to which he or she provides services at Seagate-Cayman's request. However, an Indemnitee shall not be indemnified under the Revised Indemnification Agreement for (i) any fraud or dishonesty in the performance of Indemnitee's duty to Seagate-Cayman or the applicable subsidiary of Seagate-Cayman or (ii) Indemnitee's conscious, intentional or willful failure to act honestly, lawfully and in good faith with a view to the best interests of Seagate-Cayman or the applicable subsidiary of Seagate-Cayman. In addition, the Revised Indemnification Agreement provides that Seagate-Cayman will advance expenses incurred by an Indemnitee in connection with enforcement of the Revised Indemnification Agreement or with the investigation, settlement or appeal of any action or proceeding against him or her as to which he or she could be indemnified. On July 3, 2010, pursuant to a corporate reorganization, the common shareholders of Seagate-Cayman became ordinary shareholders of Seagate Technology plc (the "Company") and Seagate-Cayman became a wholly owned subsidiary of the Company, as described more fully in the Current Report on Form 8-K filed by the Company on July 6, 2010 (the “Redomestication”). On July 27, 2010, in connection with the Redomestication, the Company, as sole shareholder of Seagate-Cayman, approved a form of deed of indemnity (the “Deed of Indemnity”), which provides for the indemnification by Seagate-Cayman of any director, officer, employee or agent of the Company, Seagate-Cayman or any subsidiary of the Company (each, a “Deed Indemnitee”), in addition to any of a Deed Indemnitee's indemnification rights under the Company's Articles of Association, applicable law or otherwise, with a similar scope to the Revised Indemnification Agreement. Seagate-Cayman entered into the Deed of Indemnity with certain Deed Indemnitees effective as of July 3, 2010 and continues to enter into the Deed of Indemnity with additional Deed Indemnitees from time to time. The nature of these indemnification obligations prevents the Company from making a reasonable estimate of the maximum potential amount it could be required to pay on behalf of its officers and directors. Historically, the Company has not made any significant indemnification payments under such agreements and no amount has been accrued in the accompanying consolidated financial statements with respect to these indemnification obligations. Intellectual Property Indemnification Obligations The Company has entered into agreements with customers and suppliers that include limited intellectual property indemnification obligations that are customary in the industry. These guarantees generally require the Company to compensate the other party for certain damages and costs incurred as a result of third party intellectual property claims arising from these transactions. The nature of the intellectual property indemnification obligations prevents the Company from making a reasonable estimate of the maximum potential amount it could be required to pay to its customers and suppliers. Historically, the Company has not made any significant indemnification payments under such agreements and no amount has been accrued in the accompanying consolidated financial statements with respect to these indemnification obligations. Product Warranty The Company estimates probable product warranty costs at the time revenue is recognized. The Company generally warrants its products for a period of 1 to 5 years. The Company uses estimated repair or replacement costs and uses statistical modeling to estimate product return rates in order to determine its warranty obligation. Changes in the Company’s product warranty liability during the three and six months ended January 1, 2016 and January 2, 2015 were as follows: For the Three Months Ended For the Six Months Ended (Dollars in millions) January 1, January 2, January 1, January 2, Balance, beginning of period $ 225 $ 273 $ 248 $ 273 Warranties issued 33 40 66 80 Repairs and replacements (40 ) (46 ) (81 ) (100 ) Changes in liability for pre-existing warranties, including expirations 3 15 (12 ) 21 Warranty liability assumed from business acquisitions 2 — 2 8 Balance, end of period $ 223 $ 282 $ 223 $ 282

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jan. 01, 2016
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share Basic earnings per share is computed by dividing income available to shareholders by the weighted-average number of shares outstanding during the period. Diluted earnings per share is computed by dividing income available to shareholders by the weighted-average number of shares outstanding during the period and the number of additional shares that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstanding options, unvested restricted share units and shares to be purchased under the ESPP. The dilutive effect of potentially dilutive securities is reflected in diluted earnings per share by application of the treasury stock method. Under the treasury stock method, an increase in fair market value of the Company’s share price can result in a greater dilutive effect from potentially dilutive securities. The following table sets forth the computation of basic and diluted net income per share attributable to the shareholders of Seagate Technology plc: For the Three Months Ended For the Six Months Ended (In millions, except per share data) January 1, January 2, January 1, January 2, Numerator: Net income attributable to Seagate Technology plc $ 165 $ 933 $ 198 $ 1,314 Number of shares used in per share calculations: Total shares for purposes of calculating basic net income per share attributable to Seagate Technology plc 299 328 301 327 Weighted-average effect of dilutive securities: Employee equity award plans 2 8 3 9 Total shares for purpose of calculating diluted net income per share attributable to Seagate Technology plc 301 336 304 336 Net income per share attributable to Seagate Technology plc shareholders: Basic $ 0.55 $ 2.84 $ 0.66 $ 4.02 Diluted 0.55 2.78 0.65 3.91 The anti-dilutive shares related to employee equity award plans that were excluded from the computation of diluted net income per share attributable to Seagate Technology plc were 2 million and 1 million for the three and six months ended January 1, 2016 , respectively, and immaterial for the three and six months ended January 2, 2015 .

Legal, Environmental and Other

Legal, Environmental and Other Contingencies	6 Months Ended
	Jan. 01, 2016
Commitments and Contingencies Disclosure [Abstract]
Legal, Environmental and Other Contingencies	Legal, Environmental and Other Contingencies The Company assesses the probability of an unfavorable outcome of all its material litigation, claims, or assessments to determine whether a liability had been incurred and whether it is probable that one or more future events will occur confirming the fact of the loss. In the event that an unfavorable outcome is determined to be probable and the amount of the loss can be reasonably estimated, the Company establishes an accrual for the litigation, claim or assessment. In addition, in the event an unfavorable outcome is determined to be less than probable, but reasonably possible, the Company will disclose an estimate of the possible loss or range of such loss; however, when a reasonable estimate cannot be made, the Company will provide disclosure to that effect. Litigation is inherently uncertain and may result in adverse rulings or decisions. Additionally, the Company may enter into settlements or be subject to judgments that may, individually or in the aggregate, have a material adverse effect on its results of operations. Accordingly, actual results could differ materially. Intellectual Property Litigation Convolve, Inc. ("Convolve") and Massachusetts Institute of Technology ("MIT") v. Seagate Technology LLC, et al. - On July 13, 2000, Convolve and MIT filed suit against Compaq Computer Corporation and Seagate Technology LLC in the U.S. District Court for the Southern District of New York, alleging infringement of U.S. Patent Nos. 4,916,635 (the "'635 patent") and U.S. Patent No. 5,638,267 (the "'267 patent"), misappropriation of trade secrets, breach of contract, and other claims. In the complaint, the plaintiffs requested injunctive relief, $800 million in compensatory damages and unspecified punitive damages, including for willful infringement. On January 16, 2002, Convolve filed an amended complaint, alleging defendants infringe US Patent No. 6,314,473 (the "'473 patent"). The district court ruled in 2010 that the '267 patent was out of the case. On August 16, 2011, the district court granted in part and denied in part the Company's motion for summary judgment. On July 1, 2013, the U.S. Court of Appeals for the Federal Circuit: 1) affirmed the district court's summary judgment rulings that Seagate did not misappropriate any of the alleged trade secrets and that the asserted claims of the '635 patent are invalid; 2) reversed and vacated the district court's summary judgment of non-infringement with respect to the '473 patent; and 3) remanded the case for further proceedings on the '473 patent. On July 11, 2014, the district court granted the Company's summary judgment motion regarding Convolve's only remaining cause of action, which alleged infringement of the '473 patent. The court entered judgment in favor of the Company on July 14, 2014. Convolve filed a notice of appeal on August 13, 2014. Oral argument at the court of appeals was held on October 6, 2015; the court has not yet issued its decision. In view of the rulings made by the district court and the Court of Appeals and the uncertainty regarding the amount of damages, if any, that could be awarded Convolve in this matter, the Company does not believe that it is currently possible to determine a reasonable estimate of the possible range of loss related to this matter. Alexander Shukh v. Seagate Technology - On February 12, 2010, Alexander Shukh filed a complaint against the Company in the U.S. District Court for the District of Minnesota, alleging, among other things, employment discrimination based on his Belarusian national origin and wrongful failure to name him as an inventor on several patents and patent applications. Mr. Shukh's employment was terminated as part of a company-wide reduction in force in fiscal year 2009. He seeks damages in excess of $75 million . On March 31, 2014, the district court granted Seagate's summary judgment motion and entered judgment in favor of Seagate. Mr. Shukh filed a notice of appeal on April 7, 2014. On October 2, 2015, the court of appeals vacated and remanded the district court’s grant of summary judgment on Mr. Shukh’s claim for correction of inventorship and affirmed the district court’s grant of summary judgment as to all other claims. On October 29, 2015, Mr. Shukh filed a petition for rehearing en banc with the court of appeals; the petition was denied on December 17, 2015. In view of the uncertainty regarding the amount of damages, if any, that could be awarded in this matter, the Company does not believe that it is currently possible to determine a reasonable estimate of the possible range of loss related to this matter. LEAP Co., Ltd. v. Seagate Singapore International Headquarters Pte. Ltd. and Nippon Seagate Inc. - On July 4, 2012, LEAP Co., Ltd. filed a lawsuit in the Tokyo District Court of Japan against Seagate Singapore International Headquarters Pte. Ltd., Nippon Seagate Inc. and Buffalo Inc. alleging wrongful termination of purchase agreements and other claims, and seeking approximately $38 million in damages. The Company believes the claims are without merit and intends to vigorously defend this case. In view of the uncertainty regarding the amount of damages, if any, that could be awarded in this matter, the Company does not believe that it is currently possible to determine a reasonable estimate of the possible range of loss related to this matter. Enova Technology Corporation v. Seagate Technology (US) Holdings, Inc., et al. -On June 5, 2013, Enova Technology Corporation ("Enova") filed a complaint against Seagate Technology (US) Holdings, Inc. and Seagate Technology LLC in the U.S. District Court for the District of Delaware alleging infringement of U.S. Patent No. 7,136,995, "Cryptographic Device," and U.S. Patent No. 7,900,057, "Cryptographic Serial ATA Apparatus and Method." The complaint seeks unspecified compensatory damages, enhanced damages, injunctive relief, attorneys' fees, and other relief. On April 27, 2015, the district court ordered a stay of the case, in view of proceedings regarding the '995 and '057 Patents before the Patent Trial and Appeal Board (“PTAB”) of the U.S. Patent and Trademark Office. The Company believes the claims are without merit and intends to vigorously defend this case. On September 2, 2015, PTAB issued its final written decision that claims 1-15 of the ‘995 Patent are held unpatentable. On October 29, 2015, Enova filed a notice of appeal to appeal PTAB’s decision on the ‘995 Patent to the U.S. Court of Appeals for the Federal Circuit. On December 18, 2015, PTAB issued its final written decisions that claims 1-32 and 40-53 of the ’057 Patent are held unpatentable. In view of the uncertainty regarding the amount of damages, if any, that could be awarded in this matter, the Company does not believe that it is currently possible to determine a reasonable estimate of the possible range of loss related to this matter. Seagate Technology LLC v. Western Digital Corp . On October 8, 2014, the Minnesota Supreme Court ruled that the arbitration award in favor of the Company in its case against Western Digital for the misappropriation of the Company’s trade secrets should be confirmed. In the arbitration award, issued on January 23, 2012, the arbitrator determined that Western Digital and its former employee had misappropriated the Company’s trade secrets. The arbitrator awarded the Company $525 million in compensatory damages and, after adding interest, issued a final award of $630 million . Interest on the final award has been accruing at 10% . On October 14, 2014, the Company received a partial payment from Western Digital in the amount of $773 million . During the quarter ended January 2, 2015, the amount of the final award, less litigation and other related costs, was recorded by the Company in Gain on arbitration award, net, and the remaining amount received was recorded in Other, net. On April 7, 2015, the Hennepin County District Court of Minnesota (“district court”) denied Seagate’s motion for entry of judgment for an amount of additional interest owing on the arbitration award. On January 25, 2016, the Minnesota Court of Appeals reversed and remanded the district court’s order regarding the unpaid interest. On January 27, 2016, the Company received a further payment from Western Digital in the amount of $32.6 million , which was the remaining balance of interest owed on the final award. Environmental Matters The Company's operations are subject to U.S. and foreign laws and regulations relating to the protection of the environment, including those governing discharges of pollutants into the air and water, the management and disposal of hazardous substances and wastes and the cleanup of contaminated sites. Some of the Company's operations require environmental permits and controls to prevent and reduce air and water pollution, and these permits are subject to modification, renewal and revocation by issuing authorities. The Company has established environmental management systems and continually updates its environmental policies and standard operating procedures for its operations worldwide. The Company believes that its operations are in material compliance with applicable environmental laws, regulations and permits. The Company budgets for operating and capital costs on an ongoing basis to comply with environmental laws. If additional or more stringent requirements are imposed on the Company in the future, it could incur additional operating costs and capital expenditures. Some environmental laws, such as the Comprehensive Environmental Response Compensation and Liability Act of 1980 (as amended, the "Superfund" law) and its state equivalents, can impose liability for the cost of cleanup of contaminated sites upon any of the current or former site owners or operators or upon parties who sent waste to these sites, regardless of whether the owner or operator owned the site at the time of the release of hazardous substances or the lawfulness of the original disposal activity. The Company has been identified as a potentially responsible party at several sites. At each of these sites, the Company has an assigned portion of the financial liability based on the type and amount of hazardous substances disposed of by each party at the site and the number of financially viable parties. The Company has fulfilled its responsibilities at some of these sites and remains involved in only a few at this time. While the Company's ultimate costs in connection with these sites is difficult to predict with complete accuracy, based on its current estimates of cleanup costs and its expected allocation of these costs, the Company does not expect costs in connection with these sites to be material. The Company may be subject to various state, federal and international laws and regulations governing the environment, including those restricting the presence of certain substances in electronic products. For example, the European Union ("EU") enacted the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment, which prohibits the use of certain substances, including lead, in certain products, including disk drives and server storage products, put on the market after July 1, 2006. Similar legislation has been or may be enacted in other jurisdictions, including in the United States, Canada, Mexico, Taiwan, China, Japan and others. The European Union REACH Directive (Registration, Evaluation, Authorization, and Restriction of Chemicals, EC 1907/2006) also restricts substances of very high concern ("SVHCs") in products. If the Company or its suppliers fails to comply with the substance restrictions, recycle requirements or other environmental requirements as they are enacted worldwide, it could have a materially adverse effect on the Company's business. Other Matters The Company is involved in a number of other judicial and administrative proceedings incidental to its business, and the Company may be involved in various legal proceedings arising in the normal course of its business in the future. Although occasional adverse decisions or settlements may occur, the Company believes that the final disposition of such matters will not have a material adverse effect on its financial position or results of operations.

Basis of Presentation and Sum21

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jan. 01, 2016
Accounting Policies [Abstract]
Consolidation, Policy	Basis of Presentation and Consolidation The unaudited condensed consolidated financial statements include the accounts of the Company and all its wholly-owned and majority-owned subsidiaries, after elimination of intercompany transactions and balances. The preparation of financial statements in accordance with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the Company’s condensed consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. The methods, estimates and judgments the Company uses in applying its most critical accounting policies have a significant impact on the results the Company reports in its condensed consolidated financial statements. The condensed consolidated financial statements reflect, in the opinion of management, all material adjustments necessary to present fairly the condensed consolidated financial position, results of operations, comprehensive income, cash flows and shareholders’ equity for the periods presented. Such adjustments are of a normal and recurring nature. Certain prior period amounts in the condensed consolidated financial statements and notes to the condensed consolidated financial statements have been reclassified to conform to the current period’s presentation. The Company’s Consolidated Financial Statements for the fiscal year ended July 3, 2015 , are included in its Annual Report on Form 10-K as filed with the United States Securities and Exchange Commission (“SEC”) on August 11, 2015 . The Company believes that the disclosures included in the unaudited condensed consolidated financial statements, when read in conjunction with its Consolidated Financial Statements as of July 3, 2015 , and the notes thereto, are adequate to make the information presented not misleading.
New Accounting Pronouncements, Policy	May 2014 and August 2015, the FASB issued ASU 2014-09 (ASC Topic 606) , Revenue from Contracts with Customers and ASU 2015-14 (ASC Topic 606) Revenue from Contracts with Customers, Deferral of the Effective Date, respectively. The ASU outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. It also requires entities to disclose both quantitative and qualitative information that enable financial statements users to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The amendments in this ASU are effective for fiscal years, and interim periods within those years, beginning after December 15, 2017. Early adoption is permitted for annual periods beginning after December 15, 2016. The Company is in the process of assessing the impact, if any, on its consolidated financial statements. In April 2015 and August 2015, the FASB issued ASU 2015-03 (ASC Subtopic 835-30), Interest-Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs and ASU 2015-15 (ASC Subtopic 835-30), Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements- Amendments to SEC Paragraphs Pursuant to Staff Announcement at June 18, 2015 EITF Meeting, respectively. The ASUs require that debt issuance costs related to a recognized debt liability, with the exception of those related to line-of-credit arrangements, be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. The amendments in these ASUs are effective for fiscal years, and interim periods within those years, beginning after December 15, 2015. Early adoption is permitted for financial statements that have not been previously issued. The adoption of this new guidance is not expected to have a material impact on the Company’s consolidated financial statements and disclosures. In July 2015, the FASB issued ASU 2015-11 (ASC Topic 330), Inventory: Simplifying the Measurement of Inventory. The amendments in this ASU require inventory measurement at the lower of cost and net realizable value. The amendments in this ASU are effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted by all entities as of the beginning of an interim or annual reporting period. The Company is in the process of assessing the impact, if any, of this ASU on its consolidated financial statements. In September 2015, the FASB issued ASU 2015-16 (ASC Topic 805), Business Combinations Simplifying the Accounting for Measurement-Period Adjustments . The amendments in this update require that an acquirer recognize measurement period adjustments in the period in which the adjustments are determined. The income effects of such measurement period adjustments are to be recorded in the same period’s financial statements but calculated as if the accounting had been completed as of the acquisition date. The impact of measurement period adjustments to earnings that relate to prior period financial statements are to be presented separately on the income statement or disclosed by line item. The amendments in this update are for fiscal years, including interim periods within those fiscal years, beginning after December 15, 2015. Early adoption is permitted for public business entities for reporting periods for which financial statements have not yet been issued. The adoption of this new guidance is not expected to have a material impact on the Company’s consolidated financial statements and disclosures. In November 2015, the FASB issued ASU 2015-17 (ASC Topic 740), Income Taxes Balance Sheet Classification of Deferred Taxes. The amendments in this Update are effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted by all entities as of the beginning of an interim or annual reporting period. The Company early adopted this ASU for the December 2015 quarter on a prospective basis. See footnote 4 for disclosure of the financial statement impact of this adoption. In January 2016, the FASB issued ASU 2016-01 (ASC Subtopic 825-10), Financial Instruments- Overall Recognition and Measurement of Financial Assets and Financial Liabilities. The amendments in this ASU require entities to measure all investments in equity securities at fair value with changes recognized through net income. This requirement does not apply to investments that qualify for the equity method of accounting, to those that result in consolidation of the investee, or for which the entity meets a practicability exception to fair value measurement. Additionally, the amendments eliminate certain disclosure requirements related to financial instruments measured at amortized cost and add disclosures related to the measurement categories of financial assets and financial liabilities. The amendments in this ASU are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early adoption is permitted for only certain portions of the ASU. The Company is in the process of assessing the impact, if any, on its consolidated financial statements.

Balance Sheet Information (Tabl

Balance Sheet Information (Tables)	6 Months Ended
	Jan. 01, 2016
Disclosure Text Block Supplement [Abstract]
Summary of fair value and amortized cost of investments, by major type	(Dollars in millions) Amortized Cost Unrealized Gain/(Loss) Fair Value Available-for-sale securities: Money market funds $ 1,203 $ — $ 1,203 Certificates of deposit 867 — 867 Corporate bonds 6 — 6 Total $ 2,076 $ — $ 2,076 Included in Cash and cash equivalents $ 2,063 Included in Short-term investments 6 Included in Other current assets 7 Total $ 2,076 (Dollars in millions) Amortized Cost Unrealized Gain/(Loss) Fair Value Available-for-sale securities: Money market funds $ 212 $ — $ 212 Certificates of deposit 165 — 165 Corporate bonds 6 — 6 $ 383 $ — $ 383 Included in Cash and cash equivalents $ 370 Included in Short-term investments 6 Included in Other current assets 7 Total $ 383
Fair value and amortized cost of available-for-sale securities by contractual maturity	(Dollars in millions) Amortized Cost Fair Value Due in less than 1 year $ 377 $ 377 Due in 1 to 5 years 6 6 Thereafter — — Total $ 383 $ 383
Inventories	(Dollars in millions) January 1, July 3, Raw materials and components $ 330 $ 352 Work-in-process 281 239 Finished goods 435 402 $ 1,046 $ 993
Property, Equipment and Leasehold Improvements, net	(Dollars in millions) January 1, July 3, Property, equipment and leasehold improvements $ 9,845 $ 9,630 Accumulated depreciation and amortization (7,615 ) (7,352 ) $ 2,230 $ 2,278
Schedule of accumulated other comprehensive income (loss)	(Dollars in millions) Unrealized Gains (Losses) on Cash Flow Hedges Unrealized Gains (Losses) on Marketable Securities (a) Unrealized Gains (Losses) on post-retirement plans Foreign currency translation adjustments Total Balance at July 3, 2015 $ 1 $ — $ (15 ) $ (16 ) $ (30 ) Other comprehensive income (loss) before reclassifications (2 ) — 1 (3 ) (4 ) Amounts reclassified from AOCI 2 — — — 2 Other comprehensive income (loss) — — 1 (3 ) (2 ) Balance at January 1, 2016 $ 1 $ — $ (14 ) $ (19 ) $ (32 ) Balance at June 27, 2014 $ (1 ) $ — $ (10 ) $ 9 $ (2 ) Other comprehensive income (loss) before reclassifications (9 ) — — (16 ) (25 ) Amounts reclassified from AOCI 2 — — — 2 Other comprehensive income (loss) (7 ) — — (16 ) (23 ) Balance at January 2, 2015 $ (8 ) $ — $ (10 ) $ (7 ) $ (25 ) ___________________________________________ (a) The cost of a security sold or the amount reclassified out of AOCI into earnings was determined using specific identification.

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jan. 01, 2016
Debt Disclosure [Abstract]
Future principal payments on long-term debt	Fiscal Year Amount Remainder of 2016 $ — 2017 — 2018 — 2019 800 2020 — Thereafter 3,343 $ 4,143

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Jan. 01, 2016
Business Acquisition [Line Items]
Business Combination Disclosure	Acquisitions Dot Hill Systems Corp. On October 6, 2015 , the Company acquired all of the outstanding shares of Dot Hill Systems Corp. (“Dot Hill”), a supplier of software and hardware storage systems. The Company paid $9.75 per share, or $674 million , in cash for the acquisition. The acquisition of Dot Hill further expands the Company's OEM-focused cloud storage systems business and advances the Company's strategic efforts. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Cash and cash equivalents $ 40 Accounts receivable, net 48 Inventories 21 Other current and non-current assets 7 Property, plant and equipment 10 Intangible assets 252 Goodwill 364 Total assets 742 Accounts payable, accrued expenses and other (68 ) Total liabilities (68 ) Total $ 674 The following table shows the fair value of the separately identifiable intangible assets at the time of acquisition and the period over which each intangible asset will be amortized: (Dollars in millions) Fair Value Weighted- Existing technology $ 164 5.0 years Customer relationships 71 7.0 years Trade names 3 5.0 years Total amortizable intangible assets acquired 238 5.5 years In-process research and development 14 Total acquired identifiable intangible assets $ 252 The recognized goodwill, which is not deductible for income tax purposes, is primarily attributable to cost synergies expected to arise after the acquisition and the benefits the Company expects to derive from enhanced market opportunities. The expenses related to the acquisition of Dot Hill in for the six months ended January 1, 2016 , which are included within Marketing and administrative expense on the Consolidated Statement of Operations, are not significant. The amounts of revenue and earnings of Dot Hill included in the Company's Consolidated Statement of Operations from the acquisition date are not significant. LSI's Flash Business On September 2, 2014, the Company completed the acquisition of certain assets and liabilities of LSI Corporation's ("LSI") Accelerated Solutions Division and Flash Components Division (collectively, the "Flash Business") from Avago Technologies Limited for $450 million in cash. The transaction is intended to strengthen Seagate's strategy to deliver a full suite of storage solutions, providing Seagate with established enterprise PCIe flash and SSD controller capabilities to deliver solutions for the growing flash storage market. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Inventories $ 37 Property, plant and equipment 22 Intangible assets 141 Other assets 6 Goodwill 337 Total assets 543 Liabilities (93 ) Total liabilities (93 ) Total $ 450 The following table shows the fair value of the separately identifiable intangible assets at the time of acquisition and the weighted-average period over which intangible assets within each category will be amortized: (Dollars in millions) Fair Value Weighted- Existing technology $ 84 3.5 years Customer relationships 40 3.8 years Trade names 17 4.5 years Total acquired identifiable intangible assets $ 141 The goodwill recognized is primarily attributable to the benefits the Company expects to derive from enhanced market opportunities, and is not deductible for income tax purposes. The Company incurred approximately $1 million of expenses related to the acquisition of LSI's Flash Business during the six months ended January 2, 2015 , which were included within Marketing and administrative expense on the Company's Condensed Consolidated Statement of Operations. The amounts of revenue and earnings of LSI's Flash Business included in the Company's Consolidated Statement of Operations from the acquisition date through January 2, 2015 were not significant. Xyratex Ltd On March 31, 2014, the Company acquired all of the outstanding shares of Xyratex Ltd (“Xyratex”), a leading provider of data storage technology. The Company paid $13.25 per share, or approximately $376 million in cash for the acquisition. The acquisition of Xyratex further strengthens the Company’s vertically integrated supply and manufacturing chain for disk drives and provides access to important capital requirements, as well as expands the Company’s storage solutions portfolio. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Cash and cash equivalents $ 91 Accounts receivable, net 67 Inventories 111 Other current and non-current assets 28 Property, plant and equipment 55 Intangible assets 80 Goodwill 60 Total assets 492 Accounts payable and accrued expenses (116 ) Total liabilities (116 ) Total $ 376 The following table shows the fair value of the separately identifiable intangible assets at the time of acquisition and the period over which each intangible asset will be amortized: (Dollars in millions) Fair Value Weighted- Existing technology $ 23 5.5 years Customer relationships 18 3.9 years Total amortizable intangible assets acquired 41 4.8 years In-process research and development 39 Total acquired identifiable intangible assets $ 80 The goodwill recognized is primarily attributable to the synergies expected to arise after the acquisition, and is not deductible for income tax purposes. Dot Hill Systems Corp. On October 6, 2015 , the Company acquired all of the outstanding shares of Dot Hill Systems Corp. (“Dot Hill”), a supplier of software and hardware storage systems. The Company paid $9.75 per share, or $674 million , in cash for the acquisition. The acquisition of Dot Hill further expands the Company's OEM-focused cloud storage systems business and advances the Company's strategic efforts. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Cash and cash equivalents $ 40 Accounts receivable, net 48 Inventories 21 Other current and non-current assets 7 Property, plant and equipment 10 Intangible assets 252 Goodwill 364 Total assets 742 Accounts payable, accrued expenses and other (68 ) Total liabilities (68 ) Total $ 674 The following table shows the fair value of the separately identifiable intangible assets at the time of acquisition and the period over which each intangible asset will be amortized: (Dollars in millions) Fair Value Weighted- Existing technology $ 164 5.0 years Customer relationships 71 7.0 years Trade names 3 5.0 years Total amortizable intangible assets acquired 238 5.5 years In-process research and development 14 Total acquired identifiable intangible assets $ 252 The recognized goodwill, which is not deductible for income tax purposes, is primarily attributable to cost synergies expected to arise after the acquisition and the benefits the Company expects to derive from enhanced market opportunities. The expenses related to the acquisition of Dot Hill in for the six months ended January 1, 2016 , which are included within Marketing and administrative expense on the Consolidated Statement of Operations, are not significant. The amounts of revenue and earnings of Dot Hill included in the Company's Consolidated Statement of Operations from the acquisition date are not significant.
Fair value of assets acquired and liabilities assumed	The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Inventories $ 37 Property, plant and equipment 22 Intangible assets 141 Other assets 6 Goodwill 337 Total assets 543 Liabilities (93 ) Total liabilities (93 ) Total $ 450
Dot Hill [Domain]
Business Acquisition [Line Items]
Fair value of assets acquired and liabilities assumed	The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Cash and cash equivalents $ 40 Accounts receivable, net 48 Inventories 21 Other current and non-current assets 7 Property, plant and equipment 10 Intangible assets 252 Goodwill 364 Total assets 742 Accounts payable, accrued expenses and other (68 ) Total liabilities (68 ) Total $ 674
Xyratex Ltd [Member]
Business Acquisition [Line Items]
Fair value of assets acquired and liabilities assumed	The following table summarizes the estimated fair values of the assets acquired and liabilities assumed at the acquisition date: (Dollars in millions) Amount Cash and cash equivalents $ 91 Accounts receivable, net 67 Inventories 111 Other current and non-current assets 28 Property, plant and equipment 55 Intangible assets 80 Goodwill 60 Total assets 492 Accounts payable and accrued expenses (116 ) Total liabilities (116 ) Total $ 376

Goodwill and Other Intangible25

Goodwill and Other Intangible Assets (Tables)	6 Months Ended
	Jan. 01, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in the carrying amount of goodwill	(Dollars in millions) Amount Balance at July 3, 2015 $ 874 Goodwill acquired 364 Foreign currency translation effect — Balance at January 1, 2016 $ 1,238
Carrying value of intangible assets	(Dollars in millions) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Useful Life Existing technology $ 311 $ (57 ) $ 254 4.5 years Customer relationships 510 (283 ) 227 3.4 years Trade names 29 (10 ) 19 3.0 years Other intangible assets 28 (7 ) 21 3.7 years Total amortizable other intangible assets $ 878 $ (357 ) $ 521 3.9 years (Dollars in millions) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Weighted Average Remaining Useful Life Existing technology $ 191 $ (69 ) $ 122 4.1 years Customer relationships 487 (282 ) 205 2.4 years Trade names 27 (7 ) 20 3.2 years Other intangible assets 27 (4 ) 23 4.2 years Total amortizable other intangible assets $ 732 $ (362 ) $ 370 3.1 years
Expected amortization expense for acquisition-related intangible assets	(Dollars in millions) Amount Remainder of 2016 $ 87 2017 166 2018 108 2019 68 2020 50 Thereafter 42 $ 521

Derivative Financial Instrume26

Derivative Financial Instruments (Tables)	6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of notional value of outstanding foreign currency forward exchange contracts	As of January 1, 2016 (Dollars in millions) Contracts Designated as Hedges Contracts Not Designated as Hedges Singapore Dollars $ — $ 35 British Pound Sterling 51 — Thai Baht — 26 Malaysian Ringgit — 5 Euro — 2 $ 51 $ 68 As of July 3, 2015 (Dollars in millions) Contracts Designated as Hedges Contracts Not Designated as Hedges British Pound Sterling $ 35 $ — Singapore dollars 23 42 Thai Baht 18 48 Malaysian Ringgit 12 15 Chinese Renminbi 5 16 Euro — 13 $ 93 $ 134
Schedule of gross fair value of derivative instruments	As of January 1, 2016 Asset Derivatives Liability Derivatives (Dollars in millions) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments: Foreign currency forward exchange contracts Other current assets $ — Accrued expenses $ — Derivatives not designated as hedging instruments: Foreign currency forward exchange contracts Other current assets — Accrued expenses (1 ) Total return swap Other current assets — Accrued expenses (2 ) Total derivatives $ — $ (3 ) As of July 3, 2015 Asset Derivatives Liability Derivatives (Dollars in millions) Balance Sheet Location Fair Value Balance Sheet Location Fair Value Derivatives designated as hedging instruments: Foreign currency forward exchange contracts Other current assets $ 2 Accrued expenses $ (1 ) Derivatives not designated as hedging instruments: Foreign currency forward exchange contracts Other current assets — Accrued expenses (3 ) Total return swap Other current assets 1 Accrued expenses — Total derivatives $ 3 $ (4 )
Schedule of the effect of derivative instruments on Other comprehensive income (loss) and the Consolidated Statement of Operations	(Dollars in millions) Derivatives Designated as Hedging Instruments Amount of Gain or (Loss) Recognized in OCI on Derivatives (Effective Portion) Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) Location of Gain or (Loss) Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing) Amount of Gain or (Loss) Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing) (a) For the Three Months For the Six Months For the Three Months For the Six Months For the Three Months For the Six Months Foreign currency forward exchange contracts $ — $ (2 ) Cost of revenue $ (1 ) $ (2 ) Cost of revenue $ — $ — Derivatives Not Designated as Hedging Instruments Location of Gain or (Loss) Recognized in Income on Derivative Amount of Gain or (Loss) Recognized in Income on Derivative For the Three Months For the Six Months Foreign currency forward exchange contracts Other, net $ 1 $ (4 ) Total return swap Operating expenses 1 (4 ) ___________________________________________ (a) The amount of gain or (loss) recognized in income represents $0 related to the ineffective portion of the hedging relationships and $0 related to the amount excluded from the assessment of hedge effectiveness for the three and six months ended January 1, 2016 .	(Dollars in millions) Derivatives Designated as Hedging Instruments Amount of Gain or (Loss) Recognized in OCI on Derivatives (Effective Portion) Location of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) Location of Gain or (Loss) Recognized in Income on Derivatives (Ineffective Portion and Amount Excluded from Effectiveness Testing) Amount of Gain or (Loss) Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing) (a) For the Three Months For the Six Months For the Three Months For the Six Months For the Three Months For the Six Months Foreign currency forward exchange contracts $ (6 ) $ (10 ) Cost of revenue $ (2 ) $ (2 ) Cost of revenue $ (1 ) $ — Derivatives Not Designated as Hedging Instruments Location of Gain or (Loss) Recognized in Income on Derivatives Amount of Gain or (Loss) Recognized in Income on Derivatives For the Three Months For the Six Months Foreign currency forward exchange contracts Other, net $ (1 ) $ (5 ) Total return swap Operating expenses 2 — ___________________________________________ (a) The amount of gain or (loss) recognized in income represents $0 related to the ineffective portion of the hedging relationships and $(1) million and $0 related to the amount excluded from the assessment of hedge effectiveness for the three and six months January 2, 2015 , respectively.

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Jan. 01, 2016
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	Fair Value Measurements at Reporting Date Using (Dollars in millions) Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Balance Assets: Money market funds $ 1,201 $ — $ — $ 1,201 Certificates of deposit — 862 — 862 Corporate bonds — 6 — 6 Total cash equivalents and short-term investments 1,201 868 — 2,069 Restricted cash and investments: Money market funds 2 — — 2 Certificates of deposit — 5 — 5 Derivative assets — 3 — 3 Total assets $ 1,203 $ 876 $ — $ 2,079 Liabilities: Derivative liabilities $ — $ (4 ) $ — $ (4 ) Total liabilities $ — $ (4 ) $ — $ (4 ) Fair Value Measurements at Reporting Date Using (Dollars in millions) Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Balance Assets: Money market funds $ 210 $ — $ — $ 210 Certificates of deposit — 160 — 160 Corporate bonds — 6 — 6 Total cash equivalents and short-term investments 210 166 — 376 Restricted cash and investments: Money market funds 2 — — 2 Certificates of deposit — 5 — 5 Total assets $ 212 $ 171 $ — $ 383 Liabilities: Derivative liabilities $ — $ (3 ) $ — $ (3 ) Total liabilities $ — $ (3 ) $ — $ (3 )
Schedule of Fair Value, by Balance Sheet Grouping, Measured on Recurring Basis	Fair Value Measurements at Reporting Date Using (Dollars in millions) Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Balance Assets: Cash and cash equivalents $ 1,201 $ 862 $ — $ 2,063 Short-term investments — 6 — 6 Other current assets 2 8 — 10 Total assets $ 1,203 $ 876 $ — $ 2,079 Liabilities: Accrued expenses $ — $ (4 ) $ — $ (4 ) Total liabilities $ — $ (4 ) $ — $ (4 ) Fair Value Measurements at Reporting Date Using (Dollars in millions) Quoted Prices in Active Markets for Identical Instruments (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Total Balance Assets: Cash and cash equivalents $ 210 $ 160 $ — $ 370 Short-term investments — 6 — 6 Other current assets 2 5 — 7 Total assets $ 212 $ 171 $ — $ 383 Liabilities: Accrued expenses $ — $ (3 ) $ — $ (3 ) Total liabilities $ — $ (3 ) $ — $ (3 )
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments	January 1, 2016 July 3, 2015 (Dollars in millions) Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value 3.75% Senior Notes due November 2018 $ 800 $ 807 $ 800 $ 828 7.00% Senior Notes due November 2021 158 164 158 170 4.75% Senior Notes due June 2023 990 905 1,000 1,016 4.75% Senior Notes due January 2025 995 847 1,000 995 4.875% Senior Notes due June 2027 698 567 698 675 5.75% Senior Notes due December 2034 499 350 499 491 Long-term debt $ 4,140 $ 3,640 $ 4,155 $ 4,175 Less short-term borrowings and current portion of long-term debt — — — — Long-term debt, less current portion $ 4,140 $ 3,640 $ 4,155 $ 4,175

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	6 Months Ended
	Jan. 01, 2016
Equity [Abstract]
Schedule of Share Repurchases	(In millions) Number of Shares Repurchased Dollar Value of Shares Repurchased Repurchases of Ordinary Shares 23 $ 1,090 Tax Withholding Related to Vesting of Equity Awards 1 54 Total 24 $ 1,144

Guarantees (Tables)

Guarantees (Tables)	6 Months Ended
	Jan. 01, 2016
Guarantees [Abstract]
Schedule of Product Warranty Liability	For the Three Months Ended For the Six Months Ended (Dollars in millions) January 1, January 2, January 1, January 2, Balance, beginning of period $ 225 $ 273 $ 248 $ 273 Warranties issued 33 40 66 80 Repairs and replacements (40 ) (46 ) (81 ) (100 ) Changes in liability for pre-existing warranties, including expirations 3 15 (12 ) 21 Warranty liability assumed from business acquisitions 2 — 2 8 Balance, end of period $ 223 $ 282 $ 223 $ 282

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jan. 01, 2016
Earnings Per Share [Abstract]
Schedule of computation of basic and diluted net income (loss) per share	For the Three Months Ended For the Six Months Ended (In millions, except per share data) January 1, January 2, January 1, January 2, Numerator: Net income attributable to Seagate Technology plc $ 165 $ 933 $ 198 $ 1,314 Number of shares used in per share calculations: Total shares for purposes of calculating basic net income per share attributable to Seagate Technology plc 299 328 301 327 Weighted-average effect of dilutive securities: Employee equity award plans 2 8 3 9 Total shares for purpose of calculating diluted net income per share attributable to Seagate Technology plc 301 336 304 336 Net income per share attributable to Seagate Technology plc shareholders: Basic $ 0.55 $ 2.84 $ 0.66 $ 4.02 Diluted 0.55 2.78 0.65 3.91

Basis of Presentation and Sum31

Basis of Presentation and Summary of Significant Accounting Policies (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Schedule of Fiscal Years [Line Items]
Number Of Weeks In Quarter	13	14	26	27
Minimum [Member]
Schedule of Fiscal Years [Line Items]
Number of Weeks in Fiscal Year			52
Maximum [Member]
Schedule of Fiscal Years [Line Items]
Number of Weeks in Fiscal Year			53

Balance Sheet Information Balan

Balance Sheet Information Balance Sheet Information (Narrative) (Details) - USD ($) $ in Millions	Jan. 01, 2016	Jul. 03, 2015
Schedule of Available-for-sale Securities [Line Items]
Marketable Securities, Restricted, Current	$ 7	$ 7
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	0
Available-for-sale Securities, Cost Basis of Other-than-temporarily Imparied Securities	$ 0	$ 0

Balance Sheet Information (Summ

Balance Sheet Information (Summary of fair value and amortized cost of investments, by major type)(Details) - USD ($) $ in Millions	Jan. 01, 2016	Jul. 03, 2015
Available-for-sale securities:
Available-for-sale securities, Amortized Cost	$ 383	$ 2,076
Available-for-sale securities, Unrealized Gain/(Loss)	0	0
Available-for-sale securities, Fair Value	383	2,076
Total available-for-sale and trading securities
Included in Short-term investments	6	6
Other current assets	223	233
Fair Value, Total Balance [Member]
Total available-for-sale and trading securities
Investments, Total Fair Value	383	2,076
Included in Cash and cash equivalents	370	2,063
Included in Short-term investments	6	6
Investments, Total Fair Value	383	2,076
Other current assets	7	7
Money market funds [Member]
Available-for-sale securities:
Available-for-sale securities, Amortized Cost	212	1,203
Available-for-sale securities, Unrealized Gain/(Loss)	0	0
Available-for-sale securities, Fair Value	212	1,203
Corporate bonds [Member]
Available-for-sale securities:
Available-for-sale securities, Amortized Cost	6	6
Available-for-sale securities, Unrealized Gain/(Loss)	0	0
Available-for-sale securities, Fair Value	6	6
Certificates of deposit [Member]
Available-for-sale securities:
Available-for-sale securities, Amortized Cost	165	867
Available-for-sale securities, Unrealized Gain/(Loss)	0	0
Available-for-sale securities, Fair Value	$ 165	$ 867

Balance Sheet Information (Fair

Balance Sheet Information (Fair value and amortized cost of available-for-sale securities by contractual maturity) (Details) $ in Millions	Jan. 01, 2016USD ($)
Amortized Cost
Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis	$ 377
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortize	6
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsAmortizedCost	0
Total Amortized Cost	383
Fair Value
Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value	377
Available-for-sale Securities, Debt Maturities, after One Through Five Years, at Fair Value	6
Available-for-sale Securities, Debt Maturities, after Five Years Fair Value	0
Total Fair Value	$ 383

Balance Sheet Information (Inve

Balance Sheet Information (Inventories) (Details) - USD ($) $ in Millions	Jan. 01, 2016	Jul. 03, 2015
Inventory, Net [Abstract]
Raw materials and components	$ 330	$ 352
Work-in-process	281	239
Finished goods	435	402
Total inventories	$ 1,046	$ 993

Balance Sheet Information (Prop

Balance Sheet Information (Property, Equipment and Leasehold Improvements, net) (Details) - USD ($) $ in Millions	Jan. 01, 2016	Jul. 03, 2015
Property, Plant and Equipment, Net [Abstract]
Property, equipment and leasehold improvements	$ 9,845	$ 9,630
Accumulated depreciation and amortization	(7,615)	(7,352)
Total property, equipment and leasehold improvements, net	$ 2,230	$ 2,278

Balance Sheet Information (Accu

Balance Sheet Information (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Unrealized Gains (Losses) on Cash Flow Hedges
Beginning Balance			$ 1	$ (1)
Other comprehensive income (loss) before reclassifications	$ 0	$ (6)	(2)	(9)
Amounts reclassified from AOCI	1	2	2	2
Other comprehensive income (loss)	1	(4)	0	(7)
Ending Balance	1	(8)	1	(8)
Unrealized Gains (Losses) on Marketable Securities (a)
Beginning Balance			0	0
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from AOCI	0	0	0	0
Other comprehensive income (loss)	0	0	0	0
Ending Balance	0	0	0	0
Unrealized Gains (Losses) on post-retirement plans
Beginning Balance			(15)	(10)
Other comprehensive income (loss) before reclassifications	0	0	1	0
Amounts reclassified from AOCI	0	0	0	0
Other comprehensive income (loss)	0	0	1	0
Ending Balance	(14)	(10)	(14)	(10)
Foreign currency translation adjustments
Beginning Balance			(16)	9
Other comprehensive income (loss) before reclassifications			(3)	(16)
Amounts reclassified from AOCI			0	0
Other comprehensive income (loss)	(3)	(6)	(3)	(16)
Ending Balance	(19)	(7)	(19)	(7)
Total
Beginning Balance			(30)	(2)
Other comprehensive income before reclassifications			(4)	(25)
Amounts reclassified from AOCI			2	2
Total other comprehensive income (loss), net of tax	(2)	(10)	(2)	(23)
Accumulated other comprehensive loss	$ (32)	$ (25)	$ (32)	$ (25)

Debt (Narrative) (Details)

Debt (Narrative) (Details) - USD ($) $ in Millions	Dec. 02, 2014	Jan. 01, 2016	Jan. 02, 2015	May. 14, 2015	Jan. 15, 2015	May. 28, 2014	Nov. 05, 2013	May. 22, 2013	Apr. 30, 2013	May. 18, 2011	Jan. 18, 2011
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity					$ 700				$ 500		$ 350
Sub-limit for issuance of letters of credit under revolving credit facility									$ 75
Line of Credit Facility Letters of Credit Outstanding		$ 0
Loss on repurchase of debt		$ 0	$ 52
Senior Notes 3.75 Percent due November 2018 [Member]
Debt Instrument [Line Items]
Aggregate principal amount							$ 800
Stated interest rate (as a percent)							3.75%
Senior Notes 7.00 Percent Due November 2021 [Member]
Debt Instrument [Line Items]
Aggregate principal amount										$ 600
Stated interest rate (as a percent)										7.00%
Senior Notes 4.75 Percent Due June 2023 [Member]
Debt Instrument [Line Items]
Aggregate principal amount								$ 1,000
Stated interest rate (as a percent)								4.75%
Senior Notes 4.75 Percent Due January 2025 [Member]
Debt Instrument [Line Items]
Aggregate principal amount						$ 1,000
Stated interest rate (as a percent)						4.75%
Senior Note 4.875 percent Due June 2027 [Domain]
Debt Instrument [Line Items]
Aggregate principal amount				$ 700
Stated interest rate (as a percent)				4.875%
Senior Note 5.75 percent Due December 2034 [Domain]
Debt Instrument [Line Items]
Aggregate principal amount	$ 500
Stated interest rate (as a percent)	5.75%
Debt Instrument, Basis Spread on Variable Rate	0.05%

Debt (Future principal payments

Debt (Future principal payments on long-term debt) (Details)	Jan. 01, 2016USD ($)
Debt Disclosure [Abstract]
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	$ 0
Thereafter	3,343,000,000
Total future principal payments on long-term debt	4,143,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Two	0
Long-term Debt, Maturities, Repayments of Principal in Year Three	0
Long-term Debt, Maturities, Repayments of Principal in Year Four	800,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Five	$ 0

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Income Tax Expense (Benefit)	$ 15	$ 193	$ 13	$ 203
Discrete tax (benefits) charges			$ (3)	$ 181
Domestic federal statutory rate (as a percent)			25.00%	25.00%
Deferred net tax assets	120		$ 120
Unrecognized Tax Benefits, Period Increase (Decrease)			6
Unrecognized Tax Benefits	77		77
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	77		77
Minimum [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ 30		$ 30

Acquisitions (Narrative) (Detai

Acquisitions (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	Oct. 06, 2015	Sep. 02, 2014	Mar. 31, 2014	Jan. 01, 2016	Jan. 02, 2015
Dot Hill [Domain]
Business Acquisition [Line Items]
Accounts receivable, net	$ 48
Business Acquisition Costs Of Acquired Entity Cash Paid Per Share	$ 9.75
Cash paid for consideration	$ 674
LSI’s Accelerated Solutions Division (“ASD”) and Flash Components Division (“FCD”) [Member]
Business Acquisition [Line Items]
Cash paid for consideration		$ 450
Business Combination, Acquisition Related Costs					$ 1
Xyratex Ltd [Member]
Business Acquisition [Line Items]
Accounts receivable, net			$ 67
Business Acquisition Costs Of Acquired Entity Cash Paid Per Share			$ 13.25
Cash paid for consideration			$ 376
Minimum [Member]
Business Acquisition [Line Items]
Number of Weeks in Fiscal Year				52

Acquisitions (Fair Value Of Ass

Acquisitions (Fair Value Of Assets Acquired And Liabilities Assumed) (Details) - USD ($) $ in Millions	Jan. 01, 2016	Oct. 06, 2015	Jul. 03, 2015	Sep. 02, 2014	Mar. 31, 2014
Business Acquisition [Line Items]
Goodwill	$ 1,238		$ 874
Liabilities	$ (6,975)		$ (6,827)
Xyratex Ltd [Member]
Business Acquisition [Line Items]
Cash and cash equivalents					$ 91
Accounts receivable, net					67
Inventories					111
Other current and non-current assets					28
Property, plant and equipment					55
Intangible assets					80
Goodwill					60
Total assets					492
Accounts payable and accrued expenses					(116)
Total liabilities					(116)
Total					376
Intangible assets					$ 41
LSI’s Accelerated Solutions Division (“ASD”) and Flash Components Division (“FCD”) [Member]
Business Acquisition [Line Items]
Inventories				$ 37
Property, plant and equipment				22
Intangible assets				141
Other current and non-current assets				6
Goodwill				337
Total assets				543
Liabilities				(93)
Total				450
Intangible assets				$ 141
Xyratex Ltd [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		$ 40
Accounts receivable, net		48
Inventories		21
Other current and non-current assets		7
Property, plant and equipment		10
Intangible assets		252
Goodwill		364
Total assets		742
Accounts payable and accrued expenses		(68)
Total liabilities		(68)
Total		674
Intangible assets		$ 238

Acquisitions (Fair Value Of Fin

Acquisitions (Fair Value Of Finite-Lived Intangible Assets Acquired) (Details) - USD ($) $ in Millions	Oct. 06, 2015	Sep. 02, 2014	Mar. 31, 2014	Jan. 01, 2016
Xyratex Ltd [Member]
Intangible assets acquired
Acquired identifiable intangible asset, Amount			$ 41
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill			$ 80
Acquired identifiable intangible asset, Weighted Average Useful Life			4 years 9 months
Xyratex Ltd [Member] | Existing technology [Member]
Intangible assets acquired
Acquired identifiable intangible asset, Amount			$ 23
Acquired identifiable intangible asset, Weighted Average Useful Life			5 years 6 months
Xyratex Ltd [Member] | Customer relationships [Member]
Intangible assets acquired
Acquired identifiable intangible asset, Amount			$ 18
Acquired identifiable intangible asset, Weighted Average Useful Life			3 years 11 months
LSI’s Accelerated Solutions Division (“ASD”) and Flash Components Division (“FCD”) [Member]
Intangible assets acquired
Acquired identifiable intangible asset, Amount		$ 141
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill		141
LSI’s Accelerated Solutions Division (“ASD”) and Flash Components Division (“FCD”) [Member] | Existing technology [Member]
Intangible assets acquired
Acquired identifiable intangible asset, Amount		$ 84
Acquired identifiable intangible asset, Weighted Average Useful Life		3 years 6 months
LSI’s Accelerated Solutions Division (“ASD”) and Flash Components Division (“FCD”) [Member] | Customer relationships [Member]
Intangible assets acquired
Acquired identifiable intangible asset, Amount		$ 40
Acquired identifiable intangible asset, Weighted Average Useful Life		3 years 9 months
LSI’s Accelerated Solutions Division (“ASD”) and Flash Components Division (“FCD”) [Member] | Trade name [Member]
Intangible assets acquired
Acquired identifiable intangible asset, Amount		$ 17
Acquired identifiable intangible asset, Weighted Average Useful Life		4 years 6 months
Xyratex Ltd [Member]
Intangible assets acquired
Acquired identifiable intangible asset, Amount	$ 238
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	$ 252
Acquired identifiable intangible asset, Weighted Average Useful Life	5 years 6 months
Xyratex Ltd [Member] | Existing technology [Member]
Intangible assets acquired
Acquired identifiable intangible asset, Amount	$ 164
Acquired identifiable intangible asset, Weighted Average Useful Life	5 years
Xyratex Ltd [Member] | Customer relationships [Member]
Intangible assets acquired
Acquired identifiable intangible asset, Amount	$ 71
Acquired identifiable intangible asset, Weighted Average Useful Life	7 years
Xyratex Ltd [Member] | Trade name [Member]
Intangible assets acquired
Acquired identifiable intangible asset, Amount	$ 3
Acquired identifiable intangible asset, Weighted Average Useful Life	5 years
In Process Research and Development [Member]
Intangible assets acquired
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets				$ 14
In Process Research and Development [Member] | Xyratex Ltd [Member]
Intangible assets acquired
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets			$ 39

Goodwill and Other Intangible44

Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Indefinite-lived Intangible Assets [Line Items]
Amortization of intangibles	$ 46,000,000	$ 39,000,000	$ 87,000,000	$ 72,000,000
In Process Research and Development [Member]
Indefinite-lived Intangible Assets [Line Items]
Asset Impairment Charges			$ 0

Goodwill and Other Intangible45

Goodwill and Other Intangible Assets (Changes in the carrying amount of goodwill) (Details) $ in Millions	6 Months Ended
	Jan. 01, 2016USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, Acquired During Period	$ 364
Goodwill [Roll Forward]
Goodwill, Beginning Balance	874
Foreign currency translation effect	0
Goodwill, Ending Balance	$ 1,238

Goodwill and Other Intangible46

Goodwill and Other Intangible Assets (Carrying value of intangible assets) (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jan. 01, 2016	Jul. 03, 2015
Intangible assets acquired
Gross Carrying Amount	$ 878	$ 732
Accumulated Amortization	(357)	(362)
Net Carrying Amount	$ 521	$ 370
Weighted Average Remaining Useful Life (in years)	3 years 10 months 24 days	3 years 1 month 6 days
Existing technology [Member]
Intangible assets acquired
Gross Carrying Amount	$ 311	$ 191
Accumulated Amortization	(57)	(69)
Net Carrying Amount	$ 254	$ 122
Weighted Average Remaining Useful Life (in years)	4 years 6 months	4 years 1 month 6 days
Customer relationships [Member]
Intangible assets acquired
Gross Carrying Amount	$ 510	$ 487
Accumulated Amortization	(283)	(282)
Net Carrying Amount	$ 227	$ 205
Weighted Average Remaining Useful Life (in years)	3 years 4 months 24 days	2 years 4 months 24 days
Trade name [Member]
Intangible assets acquired
Gross Carrying Amount	$ 29	$ 27
Accumulated Amortization	(10)	(7)
Net Carrying Amount	$ 19	$ 20
Weighted Average Remaining Useful Life (in years)	3 years	3 years 2 months 12 days
Other Intangible Assets [Member]
Intangible assets acquired
Gross Carrying Amount	$ 28	$ 27
Accumulated Amortization	(7)	(4)
Net Carrying Amount	$ 21	$ 23
Weighted Average Remaining Useful Life (in years)	3 years 8 months 12 days	4 years 2 months 12 days

Goodwill and Other Intangible47

Goodwill and Other Intangible Assets (Expected amortization expense for acquisition-related intangible assets) (Details) - USD ($) $ in Millions	Jan. 01, 2016	Jul. 03, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2015	$ 87
2,016	166
2,017	108
2,018	68
2,019	50
Thereafter	42
Total	$ 521	$ 370

Restructuring and Exit Costs (D

Restructuring and Exit Costs (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2016USD ($)	Jan. 02, 2015USD ($)	Jan. 01, 2016USD ($)	Jan. 02, 2015USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and other, net	$ 17	$ 3	$ 76	$ 10
Restructuring and Related Cost, Number of Positions Eliminated	1,000
September 2015 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other, net	$ 9		65
All other existing plans [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other, net	8		11
Leases, facility and other exit costs [Member] | September 2015 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other, net	7		8
Employee Severance [Member] | September 2015 Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other, net	2		57
Payments for Restructuring	41		46
Employee Severance [Member] | All other existing plans [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	$ 9		$ 18

Derivative Financial Instrume49

Derivative Financial Instruments Derivative Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Total Return Swap [Member]
Derivative Financial Instruments
Notional value of total return swap	$ 95		$ 95
Cash Flow Hedging [Member] | Foreign Exchange Forward [Member]
Derivative Financial Instruments
Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net	$ 0	$ (1)	$ 0	$ 0

Derivative Financial Instrume50

Derivative Financial Instruments (Schedule of notional value of outstanding foreign currency forward exchange contracts) (Details) - Foreign currency forward exchange contracts [Member] - USD ($) $ in Millions	Jan. 01, 2016	Jul. 03, 2015
Derivatives designated as hedging instruments [Member]
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	$ 51	$ 93
Derivatives designated as hedging instruments [Member] | Thai Baht [Member]
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	0	18
Derivatives designated as hedging instruments [Member] | Singapore dollars [Member]
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	0	23
Derivatives designated as hedging instruments [Member] | Chinese Renminbi [Member]
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts		5
Derivatives designated as hedging instruments [Member] | British Pound Sterling
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	51	35
Derivatives designated as hedging instruments [Member] | Malaysia, Ringgits
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	0	12
Derivatives designated as hedging instruments [Member] | Euro Member Countries, Euro
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	0	0
Derivatives not designated as hedging instruments [Member]
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	68	134
Derivatives not designated as hedging instruments [Member] | Thai Baht [Member]
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	26	48
Derivatives not designated as hedging instruments [Member] | Singapore dollars [Member]
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	35	42
Derivatives not designated as hedging instruments [Member] | Chinese Renminbi [Member]
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts		16
Derivatives not designated as hedging instruments [Member] | British Pound Sterling
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	0	0
Derivatives not designated as hedging instruments [Member] | Malaysia, Ringgits
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	5	15
Derivatives not designated as hedging instruments [Member] | Euro Member Countries, Euro
Derivative Financial Instruments
Notional value of outstanding foreign currency forward exchange contracts	$ 2	$ 13

Derivative Financial Instrume51

Derivative Financial Instruments (Schedule of gross fair value of derivative instruments) (Details) - USD ($) $ in Millions	Jan. 01, 2016	Jul. 03, 2015
Fair Values of Derivative Instruments
Asset Derivatives, Other current assets	$ 0	$ 3
Liability derivatives, Accrued expenses	(3)	(4)
Derivatives designated as hedging instruments [Member] | Foreign currency forward exchange contracts [Member]
Fair Values of Derivative Instruments
Asset Derivatives, Other current assets	0	2
Liability derivatives, Accrued expenses	0	(1)
Derivatives not designated as hedging instruments [Member] | Foreign currency forward exchange contracts [Member]
Fair Values of Derivative Instruments
Asset Derivatives, Other current assets	0	0
Liability derivatives, Accrued expenses	(1)	(3)
Derivatives not designated as hedging instruments [Member] | Total Return Swap [Member]
Fair Values of Derivative Instruments
Asset Derivatives, Other current assets	0
Liability derivatives, Accrued expenses	$ (2)	0
Derivative Liability, Fair Value, Gross Asset		$ 1

Derivative Financial Instrume52

Derivative Financial Instruments (Schedule of the effect of derivative instruments on Other comprehensive income (loss) and the Consolidated Statement of Operations) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Foreign currency forward exchange contracts [Member]
Derivatives Instruments, Gain (Loss)
Amount of Gain or (Loss) Recognized in Income on Derivative	$ 1	$ (1)	$ (4)	$ (5)
Total Return Swap [Member]
Derivatives Instruments, Gain (Loss)
Amount of Gain or (Loss) Recognized in Income on Derivative	1	2	0	0
Cash Flow Hedges [Member] | Foreign currency forward exchange contracts [Member]
Derivatives Instruments, Gain (Loss)
Amount of Gain or (Loss) Recognized in OCI on Derivatives (Effective Portion)	0	(6)	(2)	(10)
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)	(1)	(2)	(2)	(2)
Amount of Gain or (Loss) Recognized in Income (Ineffective Portion and Amount Excluded from Effectiveness Testing) (a)	$ 0	$ (1)	0	0
Gain or (loss) recognized in income, ineffective portion of hedging relationship			$ 0	$ 0

Fair Value (Narrative) (Details

Fair Value (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jan. 01, 2016	Jul. 03, 2015
Fair Value Measurements Using Significant Unobservable Inputs (Level 3), reconciliation
Cost Method Investments	$ 109	$ 120
Other Nonoperating Income (Expense) [Member] | Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value Measurements Using Significant Unobservable Inputs (Level 3), reconciliation
Cost-method Investments, Other than Temporary Impairment	$ 10

Fair Value (Schedule of Fair Va

Fair Value (Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis) (Details) - Recurring basis [Member] - USD ($) $ in Millions	Jan. 01, 2016	Jul. 03, 2015
Fair Value, Total Balance [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	$ 376	$ 2,069
Total Assets	383	2,079
Derivative liabilities	(3)	(4)
Total Liabilities	(3)	(4)
Money market funds [Member] | Fair Value, Total Balance [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	210	1,201
Certificates of deposit [Member] | Fair Value, Total Balance [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	160	862
Restricted cash and investments	5
Corporate bonds [Member] | Fair Value, Total Balance [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	6	6
Other debt securities [Member] | Fair Value, Total Balance [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments		5
Derivative Financial Instruments, Assets [Member] | Fair Value, Total Balance [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		3
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Total Balance [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	(3)	(4)
Mutual Funds [Member] | Fair Value, Total Balance [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	2	2
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	210	1,201
Total Assets	212	1,203
Derivative liabilities	0	0
Total Liabilities	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member] | Money market funds [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	210	1,201
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member] | Certificates of deposit [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Restricted cash and investments	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member] | Corporate bonds [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member] | Other debt securities [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments		0
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member] | Derivative Financial Instruments, Assets [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		0
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member] | Derivative Financial Instruments, Liabilities [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	0	0
Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member] | Mutual Funds [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	2	2
Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	166	868
Total Assets	171	876
Derivative liabilities	(3)	(4)
Total Liabilities	(3)	(4)
Significant Other Observable Inputs (Level 2) [Member] | Money market funds [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Significant Other Observable Inputs (Level 2) [Member] | Certificates of deposit [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	160	862
Restricted cash and investments	5
Significant Other Observable Inputs (Level 2) [Member] | Corporate bonds [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	6	6
Significant Other Observable Inputs (Level 2) [Member] | Other debt securities [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments		5
Significant Other Observable Inputs (Level 2) [Member] | Derivative Financial Instruments, Assets [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		3
Significant Other Observable Inputs (Level 2) [Member] | Derivative Financial Instruments, Liabilities [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	(3)	(4)
Significant Other Observable Inputs (Level 2) [Member] | Mutual Funds [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	0	0
Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Total Assets	0	0
Derivative liabilities	0	0
Total Liabilities	0	0
Significant Unobservable Inputs (Level 3) [Member] | Money market funds [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Significant Unobservable Inputs (Level 3) [Member] | Certificates of deposit [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Restricted cash and investments	0
Significant Unobservable Inputs (Level 3) [Member] | Corporate bonds [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Significant Unobservable Inputs (Level 3) [Member] | Other debt securities [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments		0
Significant Unobservable Inputs (Level 3) [Member] | Derivative Financial Instruments, Assets [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		0
Significant Unobservable Inputs (Level 3) [Member] | Derivative Financial Instruments, Liabilities [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative liabilities	0	0
Significant Unobservable Inputs (Level 3) [Member] | Mutual Funds [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	$ 0	$ 0

Fair Value (Schedule of Fair 55

Fair Value (Schedule of Fair Value, by Balance Sheet Grouping, Measured on Recurring Basis) (Details) - USD ($) $ in Millions	Jan. 01, 2016	Jul. 03, 2015
Assets and liabilities measured at fair value on a recurring basis
Short-term investments	$ 6	$ 6
Recurring basis [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Assets and liabilities measured at fair value on a recurring basis
Available-for-sale Securities, Restricted, Current	2	2
Cash Equivalents and Short-term Investments, Fair Value Disclosure	210	1,201
Cash and cash equivalents	210	1,201
Short-term investments	0	0
Total Assets	212	1,203
Accrued expenses - Derivative liabilities	0	0
Total Liabilities	0	0
Recurring basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value on a recurring basis
Available-for-sale Securities, Restricted, Current	5	8
Cash Equivalents and Short-term Investments, Fair Value Disclosure	166	868
Cash and cash equivalents	160	862
Short-term investments	6	6
Total Assets	171	876
Accrued expenses - Derivative liabilities	(3)	(4)
Total Liabilities	(3)	(4)
Recurring basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value on a recurring basis
Available-for-sale Securities, Restricted, Current	0	0
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Cash and cash equivalents	0	0
Short-term investments	0	0
Total Assets	0	0
Accrued expenses - Derivative liabilities	0	0
Total Liabilities	0	0
Fair Value, Total Balance [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash and cash equivalents	370	2,063
Short-term investments	6	6
Fair Value, Total Balance [Member] | Recurring basis [Member]
Assets and liabilities measured at fair value on a recurring basis
Other Marketable Securities, Current	7	10
Cash Equivalents and Short-term Investments, Fair Value Disclosure	376	2,069
Cash and cash equivalents	370	2,063
Short-term investments	6	6
Total Assets	383	2,079
Accrued expenses - Derivative liabilities	(3)	(4)
Total Liabilities	(3)	(4)
Money market funds [Member] | Recurring basis [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	210	1,201
Money market funds [Member] | Recurring basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Money market funds [Member] | Recurring basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Money market funds [Member] | Fair Value, Total Balance [Member] | Recurring basis [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	210	1,201
Derivative Financial Instruments, Liabilities [Member] | Recurring basis [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Assets and liabilities measured at fair value on a recurring basis
Accrued expenses - Derivative liabilities	0	0
Derivative Financial Instruments, Liabilities [Member] | Recurring basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value on a recurring basis
Accrued expenses - Derivative liabilities	(3)	(4)
Derivative Financial Instruments, Liabilities [Member] | Recurring basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value on a recurring basis
Accrued expenses - Derivative liabilities	0	0
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Total Balance [Member] | Recurring basis [Member]
Assets and liabilities measured at fair value on a recurring basis
Accrued expenses - Derivative liabilities	(3)	(4)
Certificates of deposit [Member] | Recurring basis [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Restricted cash and investments	0
Certificates of deposit [Member] | Recurring basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	160	862
Restricted cash and investments	5
Certificates of deposit [Member] | Recurring basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Restricted cash and investments	0
Certificates of deposit [Member] | Fair Value, Total Balance [Member] | Recurring basis [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	160	862
Restricted cash and investments	5
Corporate bonds [Member] | Recurring basis [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Corporate bonds [Member] | Recurring basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	6	6
Corporate bonds [Member] | Recurring basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	0	0
Corporate bonds [Member] | Fair Value, Total Balance [Member] | Recurring basis [Member]
Assets and liabilities measured at fair value on a recurring basis
Cash Equivalents and Short-term Investments, Fair Value Disclosure	6	6
Other debt securities [Member] | Recurring basis [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments		0
Other debt securities [Member] | Recurring basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments		5
Other debt securities [Member] | Recurring basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments		0
Other debt securities [Member] | Fair Value, Total Balance [Member] | Recurring basis [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments		5
Mutual Funds [Member] | Recurring basis [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	2	2
Mutual Funds [Member] | Recurring basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	0	0
Mutual Funds [Member] | Recurring basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	0	0
Mutual Funds [Member] | Fair Value, Total Balance [Member] | Recurring basis [Member]
Assets and liabilities measured at fair value on a recurring basis
Restricted cash and investments	$ 2	2
Derivative Financial Instruments, Assets [Member] | Recurring basis [Member] | Quoted Prices in Active Markets for Identical Instruments (Level 1) [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		0
Derivative Financial Instruments, Assets [Member] | Recurring basis [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		3
Derivative Financial Instruments, Assets [Member] | Recurring basis [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		0
Derivative Financial Instruments, Assets [Member] | Fair Value, Total Balance [Member] | Recurring basis [Member]
Assets and liabilities measured at fair value on a recurring basis
Derivative assets		$ 3

Fair Value (Schedule of Carryin

Fair Value (Schedule of Carrying Values and Estimated Fair Values of Debt Instruments) (Details) - USD ($) $ in Millions	Jan. 01, 2016	Jul. 03, 2015
Debt Fair Value Disclosures
Long-term debt	$ 4,140	$ 4,155
Carrying Amount [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	4,140	4,155
Less short-term borrowings and current portion of long-term debt	0	0
Long-term debt	4,140	4,155
Carrying Amount [Member] | Senior Notes 3.75 Percent due November 2018 [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	800	800
Carrying Amount [Member] | Senior Notes 7.00 Percent Due November 2021 [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	158	158
Carrying Amount [Member] | Senior Notes 4.75 Percent Due June 2023 [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	990	1,000
Carrying Amount [Member] | Senior Notes 4.75 Percent Due January 2025 [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	995	1,000
Carrying Amount [Member] | Other Debt [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	698	698
Carrying Amount [Member] | Senior note 5.75 percent due December 2034 [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	499	499
Fair Value, Total Balance [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	3,640	4,175
Less short-term borrowings and current portion of long-term debt	0	0
Long-term debt	3,640	4,175
Fair Value, Total Balance [Member] | Senior Notes 3.75 Percent due November 2018 [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	807	828
Fair Value, Total Balance [Member] | Senior Notes 7.00 Percent Due November 2021 [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	164	170
Fair Value, Total Balance [Member] | Senior Notes 4.75 Percent Due June 2023 [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	905	1,016
Fair Value, Total Balance [Member] | Senior Notes 4.75 Percent Due January 2025 [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	847	995
Fair Value, Total Balance [Member] | Other Debt [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	567	675
Fair Value, Total Balance [Member] | Senior note 5.75 percent due December 2034 [Member]
Debt Fair Value Disclosures
Current and noncurrent debt including short-term borrowings	$ 350	$ 491

Shareholders' Equity (Narrative

Shareholders' Equity (Narrative) (Details)	6 Months Ended
	Jan. 01, 2016USD ($)$ / sharesshares	Apr. 22, 2015USD ($)	Jul. 24, 2013USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized share capital (in dollars) | $	$ 13,500
Ordinary shares, authorized | shares	1,250,000,000
Ordinary shares, par value (in dollars per share) | $ / shares	$ 0.00001
Ordinary shares, outstanding | shares	296,258,168
Preferred shares, authorized | shares	100,000,000
Preferred shares, par value (in dollars per share) | $ / shares	$ 0.00001
Preferred Stock Minimum Number of Series	1
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $	$ 1,800,000,000
Stock Repurchased and Retired During Period, Shares | shares	24,000,000
July2013ShareRepurchaseProgram [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Repurchase Program, Authorized Amount | $			$ 2,500,000,000
April 2015 Share Repurchase [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Repurchase Program, Authorized Amount | $		$ 2,000,000,000

Shareholders' Equity (Schedule

Shareholders' Equity (Schedule of Share Repurchases) (Details) shares in Millions, $ in Millions	6 Months Ended
	Jan. 01, 2016USD ($)shares
Share Repurchases [Line Items]
Stock Repurchased During Period, Shares | shares	23
Stock Repurchased Period to Date Value | $	$ 1,090
Shares Paid for Tax Withholding for Share Based Compensation | shares	1
Adjustments Related to Tax Withholding for Share-based Compensation | $	$ 54
Stock Repurchased and Retired During Period, Value | $	$ 1,144
Stock Repurchased and Retired During Period, Shares | shares	24

Compensation (Narrative) (Detai

Compensation (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based compensation	$ 32	$ 31	$ 65	$ 73

Guarantees Guarantees (Narrativ

Guarantees Guarantees (Narrative) (Details)	6 Months Ended
	Jan. 01, 2016USD ($)
Guarantees [Abstract]
Indemnifications obligations to Officers and Directors	$ 0
intellectual property indemnification obligations	$ 0
Product Warranty Period Term, Minimum	1 year
Product Warranty Period Term, Maximum	5 years

Guarantees (Product Warranty) (

Guarantees (Product Warranty) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Guarantees [Abstract]
Balance, beginning of period	$ 225	$ 273	$ 248	$ 273
Warranties issued	33	40	66	80
Repairs and replacements	(40)	(46)	(81)	100
Changes in liability for pre-existing warranties, including expirations	3	15	(12)	21
Warranty liability assumed from business acquisitions	2	0	2	8
Balance, end of period	$ 223	$ 282	$ 223	$ 282

Earnings Per Share (Schedule of

Earnings Per Share (Schedule of computation of basic and diluted net income (loss) per share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2		1
Numerator:
Net income attributable to Seagate Technology plc	$ 165	$ 933	$ 198	$ 1,314
Number of shares used in per share calculations:
Total shares for purposes of calculating basic net income per share attributable to Seagate Technology plc	299	328	301	327
Weighted-average effect of dilutive securities:
Employee equity award plans	2	8	3	9
Total shares for purpose of calculating diluted net income per share attributable to Seagate Technology plc	301	336	304	336
Net income per share:
Basic net income per share (in dollars per share)	$ 0.55	$ 2.84	$ 0.66	$ 4.02
Diluted net income per share (in dollars per share)	$ 0.55	$ 2.78	$ 0.65	$ 3.91

Legal, Environmental and Othe63

Legal, Environmental and Other Contingencies (Narrative) (Details) - USD ($) $ in Millions	Jan. 27, 2016	Oct. 14, 2014	Jan. 23, 2012	Jan. 01, 2016
Loss Contingencies [Line Items]
Proceeds from Legal Settlements	$ 32.6
Convolve and MIT Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency, Compensatory Damages Sought				$ 800
Alexander Shukh Litigation [Member]
Loss Contingencies [Line Items]
Loss Contingency Damages Sought Amount in Excess				75
LEAP Co., Ltd. [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value				$ 38
Western Digital Corp [Member]
Loss Contingencies [Line Items]
Litigation Settlement, Amount			$ 525
Litigation Settlement, Amount, Including Interest			$ 630
Litigation Settlement, Amount, Award Interest			10.00%
Litigation Settlement, Amount, Partial Payment		$ 773