Apple (AAPL) 10-K 26 Oct 16 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Sep. 24, 2016	Oct. 14, 2016	Mar. 25, 2016
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Sep. 24, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Trading Symbol	AAPL
Entity Registrant Name	APPLE INC
Entity Central Index Key	320,193
Current Fiscal Year End Date	--09-24
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		5,332,313
Entity Public Float			$ 578,807

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Income Statement [Abstract]
Net sales	$ 215,639	$ 233,715	$ 182,795
Cost of sales	131,376	140,089	112,258
Gross margin	84,263	93,626	70,537
Operating expenses:
Research and development	10,045	8,067	6,041
Selling, general and administrative	14,194	14,329	11,993
Total operating expenses	24,239	22,396	18,034
Operating income	60,024	71,230	52,503
Other income/(expense), net	1,348	1,285	980
Income before provision for income taxes	61,372	72,515	53,483
Provision for income taxes	15,685	19,121	13,973
Net income	$ 45,687	$ 53,394	$ 39,510
Earnings per share:
Basic (in dollars per share)	$ 8.35	$ 9.28	$ 6.49
Diluted (in dollars per share)	$ 8.31	$ 9.22	$ 6.45
Shares used in computing earnings per share:
Basic (in shares)	5,470,820	5,753,421	6,085,572
Diluted (in shares)	5,500,281	5,793,069	6,122,663
Cash dividends declared per share (in dollars per share)	$ 2.18	$ 1.98	$ 1.82

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 45,687	$ 53,394	$ 39,510
Other comprehensive income/(loss):
Change in foreign currency translation, net of tax effects of $8, $201 and $50, respectively	75	(411)	(137)
Change in unrealized gains/losses on derivative instruments:
Change in fair value of derivatives, net of tax benefit/(expense) of $(7), $(441) and $(297), respectively	7	2,905	1,390
Adjustment for net (gains)/losses realized and included in net income, net of tax expense/(benefit) of $131, $630 and $(36), respectively	(741)	(3,497)	149
Total change in unrealized gains/losses on derivative instruments, net of tax	(734)	(592)	1,539
Change in unrealized gains/losses on marketable securities:
Change in fair value of marketable securities, net of tax benefit/(expense) of $(863), $264 and $(153), respectively	1,582	(483)	285
Adjustment for net (gains)/losses realized and included in net income, net of tax expense/(benefit) of $(31), $(32) and $71, respectively	56	59	(134)
Total change in unrealized gains/losses on marketable securities, net of tax	1,638	(424)	151
Total other comprehensive income/(loss)	979	(1,427)	1,553
Total comprehensive income	$ 46,666	$ 51,967	$ 41,063

CONSOLIDATED STATEMENTS OF COM4

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Change in foreign currency translation, tax effects	$ 8	$ 201	$ 50
Change in fair value of derivatives, tax benefit/(expense)	(7)	(441)	(297)
Adjustment for net (gains)/losses realized and included in net income, tax expense/(benefit)	131	630	(36)
Change in fair value of marketable securities, tax benefit/(expense)	(863)	264	(153)
Adjustment for net (gains)/losses realized and included in net income, tax expense/(benefit)	$ (31)	$ (32)	$ 71

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015
Current assets:
Cash and cash equivalents	$ 20,484	$ 21,120
Short-term marketable securities	46,671	20,481
Accounts receivable, less allowances of $53 and $63, respectively	15,754	16,849
Inventories	2,132	2,349
Vendor non-trade receivables	13,545	13,494
Other current assets	8,283	15,085
Total current assets	106,869	89,378
Long-term marketable securities	170,430	164,065
Property, plant and equipment, net	27,010	22,471
Goodwill	5,414	5,116
Acquired intangible assets, net	3,206	3,893
Other non-current assets	8,757	5,422
Total assets	321,686	290,345
Current liabilities:
Accounts payable	37,294	35,490
Accrued expenses	22,027	25,181
Deferred revenue	8,080	8,940
Commercial paper	8,105	8,499
Current portion of long-term debt	3,500	2,500
Total current liabilities	79,006	80,610
Deferred revenue, non-current	2,930	3,624
Long-term debt	75,427	53,329
Other non-current liabilities	36,074	33,427
Total liabilities	193,437	170,990
Commitments and contingencies
Shareholders’ equity:
Common stock and additional paid-in capital, $0.00001 par value: 12,600,000 shares authorized; 5,336,166 and 5,578,753 shares issued and outstanding, respectively	31,251	27,416
Retained earnings	96,364	92,284
Accumulated other comprehensive income/(loss)	634	(345)
Total shareholders’ equity	128,249	119,355
Total liabilities and shareholders’ equity	$ 321,686	$ 290,345

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 53	$ 63
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common stock, shares issued (in shares)	5,336,166,000	5,578,753,000
Common stock, shares outstanding (in shares)	5,336,166,000	5,578,753,000
Common stock, shares authorized (in shares)	12,600,000,000	12,600,000,000

CONSOLIDATED STATEMENTS OF SHAR

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Millions	Total	Common Stock and Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)
Beginning Balances (in shares) at Sep. 28, 2013		6,294,494
Beginning Balances at Sep. 28, 2013	$ 123,549	$ 19,764	$ 104,256	$ (471)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	39,510	0	39,510	0
Other comprehensive income/(loss)	1,553	0	0	1,553
Dividends and dividend equivalents declared	(11,215)	$ 0	(11,215)	0
Repurchase of common stock (in shares)		(488,677)
Repurchase of common stock	(45,000)	$ 0	(45,000)	0
Share-based compensation	2,863	$ 2,863	0	0
Common stock issued, net of shares withheld for employee taxes (in shares)		60,344
Common stock issued, net of shares withheld for employee taxes	(448)	$ (49)	(399)	0
Tax benefit from equity awards, including transfer pricing adjustments	735	$ 735	0	0
Ending Balances (in shares) at Sep. 27, 2014		5,866,161
Ending Balances at Sep. 27, 2014	111,547	$ 23,313	87,152	1,082
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	53,394	0	53,394	0
Other comprehensive income/(loss)	(1,427)	0	0	(1,427)
Dividends and dividend equivalents declared	(11,627)	$ 0	(11,627)	0
Repurchase of common stock (in shares)		(325,032)
Repurchase of common stock	(36,026)	$ 0	(36,026)	0
Share-based compensation	3,586	$ 3,586	0	0
Common stock issued, net of shares withheld for employee taxes (in shares)		37,624
Common stock issued, net of shares withheld for employee taxes	(840)	$ (231)	(609)	0
Tax benefit from equity awards, including transfer pricing adjustments	$ 748	$ 748	0	0
Ending Balances (in shares) at Sep. 26, 2015	5,578,753	5,578,753
Ending Balances at Sep. 26, 2015	$ 119,355	$ 27,416	92,284	(345)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	45,687	0	45,687	0
Other comprehensive income/(loss)	979	0	0	979
Dividends and dividend equivalents declared	(12,188)	$ 0	(12,188)	0
Repurchase of common stock (in shares)		(279,609)
Repurchase of common stock	(29,000)	$ 0	(29,000)	0
Share-based compensation	4,262	$ 4,262	0	0
Common stock issued, net of shares withheld for employee taxes (in shares)		37,022
Common stock issued, net of shares withheld for employee taxes	(1,225)	$ (806)	(419)	0
Tax benefit from equity awards, including transfer pricing adjustments	$ 379	$ 379	0	0
Ending Balances (in shares) at Sep. 24, 2016	5,336,166	5,336,166
Ending Balances at Sep. 24, 2016	$ 128,249	$ 31,251	$ 96,364	$ 634

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Statement of Cash Flows [Abstract]
Cash and cash equivalents, beginning of the year	$ 21,120	$ 13,844	$ 14,259
Operating activities:
Net income	45,687	53,394	39,510
Adjustments to reconcile net income to cash generated by operating activities:
Depreciation and amortization	10,505	11,257	7,946
Share-based compensation expense	4,210	3,586	2,863
Deferred income tax expense	4,938	1,382	2,347
Changes in operating assets and liabilities:
Accounts receivable, net	1,095	611	(4,232)
Inventories	217	(238)	(76)
Vendor non-trade receivables	(51)	(3,735)	(2,220)
Other current and non-current assets	1,090	(179)	167
Accounts payable	1,791	5,400	5,938
Deferred revenue	(1,554)	1,042	1,460
Other current and non-current liabilities	(2,104)	8,746	6,010
Cash generated by operating activities	65,824	81,266	59,713
Investing activities:
Purchases of marketable securities	(142,428)	(166,402)	(217,128)
Proceeds from maturities of marketable securities	21,258	14,538	18,810
Proceeds from sales of marketable securities	90,536	107,447	189,301
Payments made in connection with business acquisitions, net	(297)	(343)	(3,765)
Payments for acquisition of property, plant and equipment	(12,734)	(11,247)	(9,571)
Payments for acquisition of intangible assets	(814)	(241)	(242)
Payments for strategic investments	(1,388)	0	(10)
Other	(110)	(26)	26
Cash used in investing activities	(45,977)	(56,274)	(22,579)
Financing activities:
Proceeds from issuance of common stock	495	543	730
Excess tax benefits from equity awards	407	749	739
Payments for taxes related to net share settlement of equity awards	(1,570)	(1,499)	(1,158)
Payments for dividends and dividend equivalents	(12,150)	(11,561)	(11,126)
Repurchases of common stock	(29,722)	(35,253)	(45,000)
Proceeds from issuance of term debt, net	24,954	27,114	11,960
Repayments of term debt	(2,500)	0	0
Change in commercial paper, net	(397)	2,191	6,306
Cash used in financing activities	(20,483)	(17,716)	(37,549)
Increase/(Decrease) in cash and cash equivalents	(636)	7,276	(415)
Cash and cash equivalents, end of the year	20,484	21,120	13,844
Supplemental cash flow disclosure:
Cash paid for income taxes, net	10,444	13,252	10,026
Cash paid for interest	$ 1,316	$ 514	$ 339

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Sep. 24, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Apple Inc. and its wholly-owned subsidiaries (collectively “Apple” or the “Company”) designs, manufactures and markets mobile communication and media devices, personal computers and portable digital music players, and sells a variety of related software, services, accessories, networking solutions and third-party digital content and applications. The Company sells its products worldwide through its retail stores, online stores and direct sales force, as well as through third-party cellular network carriers, wholesalers, retailers and value-added resellers. In addition, the Company sells a variety of third-party Apple-compatible products, including application software and various accessories through its retail and online stores. The Company sells to consumers, small and mid-sized businesses and education, enterprise and government customers. Basis of Presentation and Preparation The accompanying consolidated financial statements include the accounts of the Company. Intercompany accounts and transactions have been eliminated. In the opinion of the Company’s management, the consolidated financial statements reflect all adjustments, which are normal and recurring in nature, necessary for fair financial statement presentation. The preparation of these consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in these consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. Certain prior period amounts in the consolidated financial statements have been reclassified to conform to the current period’s presentation. The Company’s fiscal year is the 52 or 53 -week period that ends on the last Saturday of September. The Company’s fiscal years 2016 , 2015 and 2014 ended on September 24, 2016 , September 26, 2015 and September 27, 2014 , respectively, and each spanned 52 weeks. An additional week is included in the first fiscal quarter approximately every five or six years to realign fiscal quarters with calendar quarters, which will next occur in the first quarter of the Company's fiscal year ending September 30, 2017. Unless otherwise stated, references to particular years, quarters, months and periods refer to the Company’s fiscal years ended in September and the associated quarters, months and periods of those fiscal years. During 2016, the Company adopted an accounting standard that simplified the presentation of deferred income taxes by requiring deferred tax assets and liabilities be classified as noncurrent in a classified statement of financial position. The Company has adopted this accounting standard prospectively; accordingly, the prior period amounts in the Company’s Consolidated Balance Sheets within this Annual Report on Form 10-K were not adjusted to conform to the new accounting standard. The adoption of this accounting standard was not material to the Company’s consolidated financial statements. Revenue Recognition Net sales consist primarily of revenue from the sale of hardware, software, digital content and applications, accessories, and service and support contracts. The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred, the sales price is fixed or determinable and collection is probable. Product is considered delivered to the customer once it has been shipped and title, risk of loss and rewards of ownership have been transferred. For most of the Company’s product sales, these criteria are met at the time the product is shipped. For online sales to individuals, for some sales to education customers in the U.S., and for certain other sales, the Company defers revenue until the customer receives the product because the Company retains a portion of the risk of loss on these sales during transit. For payment terms in excess of the Company’s standard payment terms, revenue is recognized as payments become due unless the Company has positive evidence that the sales price is fixed or determinable, such as a successful history of collection, without concession, on comparable arrangements. The Company recognizes revenue from the sale of hardware products, software bundled with hardware that is essential to the functionality of the hardware and third-party digital content sold on the iTunes Store in accordance with general revenue recognition accounting guidance. The Company recognizes revenue in accordance with industry specific software accounting guidance for the following types of sales transactions: (i) standalone sales of software products, (ii) sales of software upgrades and (iii) sales of software bundled with hardware not essential to the functionality of the hardware. For the sale of most third-party products, the Company recognizes revenue based on the gross amount billed to customers because the Company establishes its own pricing for such products, retains related inventory risk for physical products, is the primary obligor to the customer and assumes the credit risk for amounts billed to its customers. For third-party applications sold through the App Store and Mac App Store and certain digital content sold through the iTunes Store, the Company does not determine the selling price of the products and is not the primary obligor to the customer. Therefore, the Company accounts for such sales on a net basis by recognizing in net sales only the commission it retains from each sale. The portion of the gross amount billed to customers that is remitted by the Company to third-party app developers and certain digital content owners is not reflected in the Company’s Consolidated Statements of Operations. The Company records deferred revenue when it receives payments in advance of the delivery of products or the performance of services. This includes amounts that have been deferred for unspecified and specified software upgrade rights and non-software services that are attached to hardware and software products. The Company sells gift cards redeemable at its retail and online stores, and also sells gift cards redeemable on iTunes Store, App Store, Mac App Store, TV App Store and iBooks Store for the purchase of digital content and software. The Company records deferred revenue upon the sale of the card, which is relieved upon redemption of the card by the customer. Revenue from AppleCare service and support contracts is deferred and recognized over the service coverage periods. AppleCare service and support contracts typically include extended phone support, repair services, web-based support resources and diagnostic tools offered under the Company’s standard limited warranty. The Company records reductions to revenue for estimated commitments related to price protection and other customer incentive programs. For transactions involving price protection, the Company recognizes revenue net of the estimated amount to be refunded. For the Company’s other customer incentive programs, the estimated cost of these programs is recognized at the later of the date at which the Company has sold the product or the date at which the program is offered. The Company also records reductions to revenue for expected future product returns based on the Company’s historical experience. Revenue is recorded net of taxes collected from customers that are remitted to governmental authorities, with the collected taxes recorded as current liabilities until remitted to the relevant government authority. Revenue Recognition for Arrangements with Multiple Deliverables For multi-element arrangements that include hardware products containing software essential to the hardware product’s functionality, undelivered software elements that relate to the hardware product’s essential software, and undelivered non-software services, the Company allocates revenue to all deliverables based on their relative selling prices. In such circumstances, the Company uses a hierarchy to determine the selling price to be used for allocating revenue to deliverables: (i) vendor-specific objective evidence of fair value (“VSOE”), (ii) third-party evidence of selling price (“TPE”) and (iii) best estimate of selling price (“ESP”). VSOE generally exists only when the Company sells the deliverable separately and is the price actually charged by the Company for that deliverable. ESPs reflect the Company’s best estimates of what the selling prices of elements would be if they were sold regularly on a stand-alone basis. For multi-element arrangements accounted for in accordance with industry specific software accounting guidance, the Company allocates revenue to all deliverables based on the VSOE of each element, and if VSOE does not exist revenue is recognized when elements lacking VSOE are delivered. For sales of qualifying versions of iPhone, iPad, iPod touch, Mac, Apple Watch and Apple TV, the Company has indicated it may from time to time provide future unspecified software upgrades to the device’s essential software and/or non-software services free of charge. The Company has identified up to three deliverables regularly included in arrangements involving the sale of these devices. The first deliverable, which represents the substantial portion of the allocated sales price, is the hardware and software essential to the functionality of the hardware device delivered at the time of sale. The second deliverable is the embedded right included with qualifying devices to receive on a when-and-if-available basis, future unspecified software upgrades relating to the product’s essential software. The third deliverable is the non-software services to be provided to qualifying devices. The Company allocates revenue between these deliverables using the relative selling price method. Because the Company has neither VSOE nor TPE for these deliverables, the allocation of revenue is based on the Company’s ESPs. Revenue allocated to the delivered hardware and the related essential software is recognized at the time of sale provided the other conditions for revenue recognition have been met. Revenue allocated to the embedded unspecified software upgrade rights and the non-software services is deferred and recognized on a straight-line basis over the estimated period the software upgrades and non-software services are expected to be provided. Cost of sales related to delivered hardware and related essential software, including estimated warranty costs, are recognized at the time of sale. Costs incurred to provide non-software services are recognized as cost of sales as incurred, and engineering and sales and marketing costs are recognized as operating expenses as incurred. The Company’s process for determining its ESP for deliverables without VSOE or TPE considers multiple factors that may vary depending upon the unique facts and circumstances related to each deliverable including, where applicable, prices charged by the Company and market trends in the pricing for similar offerings, product specific business objectives, length of time a particular version of a device has been available, estimated cost to provide the non-software services and the relative ESP of the upgrade rights and non-software services as compared to the total selling price of the product. Shipping Costs Amounts billed to customers related to shipping and handling are classified as revenue, and the Company’s shipping and handling costs are classified as cost of sales. Warranty Costs The Company generally provides for the estimated cost of hardware and software warranties in the period the related revenue is recognized. The Company assesses the adequacy of its accrued warranty liabilities and adjusts the amounts as necessary based on actual experience and changes in future estimates. Software Development Costs Research and development (“R&D”) costs are expensed as incurred. Development costs of computer software to be sold, leased, or otherwise marketed are subject to capitalization beginning when a product’s technological feasibility has been established and ending when a product is available for general release to customers. In most instances, the Company’s products are released soon after technological feasibility has been established and as a result software development costs were expensed as incurred. Advertising Costs Advertising costs are expensed as incurred and included in selling, general and administrative expenses. Share-based Compensation The Company recognizes expense related to share-based payment transactions in which it receives employee services in exchange for (a) equity instruments of the Company or (b) liabilities that are based on the fair value of the Company’s equity instruments or that may be settled by the issuance of such equity instruments. Share-based compensation cost for restricted stock and restricted stock units (“RSUs”) is measured based on the closing fair market value of the Company’s common stock on the date of grant. The Company recognizes share-based compensation cost over the award’s requisite service period on a straight-line basis for time-based RSUs and on a graded basis for RSUs that are contingent on the achievement of performance conditions. The Company recognizes a benefit from share-based compensation in the Consolidated Statements of Shareholders’ Equity if an excess tax benefit is realized. In addition, the Company recognizes the indirect effects of share-based compensation on R&D tax credits, foreign tax credits and domestic manufacturing deductions in the Consolidated Statements of Operations. Further information regarding share-based compensation can be found in Note 9, “Benefit Plans.” Income Taxes The provision for income taxes is computed using the asset and liability method, under which deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities and for operating losses and tax credit carryforwards. Deferred tax assets and liabilities are measured using the currently enacted tax rates that apply to taxable income in effect for the years in which those tax assets and liabilities are expected to be realized or settled. The Company records a valuation allowance to reduce deferred tax assets to the amount that is believed more likely than not to be realized. The Company recognizes the tax benefit from an uncertain tax position only if it is more likely than not the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such positions are then measured based on the largest benefit that has a greater than 50% likelihood of being realized upon settlement. See Note 5, “Income Taxes” for additional information. Earnings Per Share Basic earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period increased to include the number of additional shares of common stock that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstanding stock options, shares to be purchased by employees under the Company’s employee stock purchase plan, unvested restricted stock and unvested RSUs. 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 the fair market value of the Company’s common stock can result in a greater dilutive effect from potentially dilutive securities. The following table shows the computation of basic and diluted earnings per share for 2016 , 2015 and 2014 (net income in millions and shares in thousands): 2016 2015 2014 Numerator: Net income $ 45,687 $ 53,394 $ 39,510 Denominator: Weighted-average shares outstanding 5,470,820 5,753,421 6,085,572 Effect of dilutive securities 29,461 39,648 37,091 Weighted-average diluted shares 5,500,281 5,793,069 6,122,663 Basic earnings per share $ 8.35 $ 9.28 $ 6.49 Diluted earnings per share $ 8.31 $ 9.22 $ 6.45 Potentially dilutive securities whose effect would have been antidilutive are excluded from the computation of diluted earnings per share. Financial Instruments Cash Equivalents and Marketable Securities All highly liquid investments with maturities of three months or less at the date of purchase are classified as cash equivalents. The Company’s marketable debt and equity securities have been classified and accounted for as available-for-sale. Management determines the appropriate classification of its investments at the time of purchase and reevaluates the classifications at each balance sheet date. The Company classifies its marketable debt securities as either short-term or long-term based on each instrument’s underlying contractual maturity date. Marketable debt securities with maturities of 12 months or less are classified as short-term and marketable debt securities with maturities greater than 12 months are classified as long-term. Marketable equity securities, including mutual funds, are classified as either short-term or long-term based on the nature of each security and its availability for use in current operations. The Company’s marketable debt and equity securities are carried at fair value, with unrealized gains and losses, net of taxes, reported as a component of accumulated other comprehensive income (“AOCI”) in shareholders’ equity, with the exception of unrealized losses believed to be other-than-temporary which are reported in earnings in the current period. The cost of securities sold is based upon the specific identification method. Derivative Financial Instruments The Company accounts for its derivative instruments as either assets or liabilities and carries them at fair value. For derivative instruments that hedge the exposure to variability in expected future cash flows that are designated as cash flow hedges, the effective portion of the gain or loss on the derivative instrument is reported as a component of AOCI in shareholders’ equity and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. The ineffective portion of the gain or loss on the derivative instrument, if any, is recognized in earnings in the current period. To receive hedge accounting treatment, cash flow hedges must be highly effective in offsetting changes to expected future cash flows on hedged transactions. For options designated as cash flow hedges, changes in the time value are excluded from the assessment of hedge effectiveness and are recognized in earnings. For derivative instruments that hedge the exposure to changes in the fair value of an asset or a liability and that are designated as fair value hedges, both the net gain or loss on the derivative instrument as well as the offsetting gain or loss on the hedged item are recognized in earnings in the current period. For derivative instruments and foreign currency debt that hedge the exposure to changes in foreign currency exchange rates used for translation of the net investment in a foreign operation and that are designated as a net investment hedge, the net gain or loss on the effective portion of the derivative instrument is reported in the same manner as a foreign currency translation adjustment. For forward exchange contracts designated as net investment hedges, the Company excludes changes in fair value relating to changes in the forward carry component from its definition of effectiveness. Accordingly, any gains or losses related to this forward carry component are recognized in earnings in the current period. Derivatives that do not qualify as hedges are adjusted to fair value through earnings in the current period. Allowance for Doubtful Accounts The Company records its allowance for doubtful accounts based upon its assessment of various factors, including historical experience, age of the accounts receivable balances, credit quality of the Company’s customers, current economic conditions and other factors that may affect the customers’ abilities to pay. Inventories Inventories are stated at the lower of cost, computed using the first-in, first-out method and net realizable value. Any adjustments to reduce the cost of inventories to their net realizable value are recognized in earnings in the current period. As of September 24, 2016 and September 26, 2015 , the Company’s inventories consist primarily of finished goods. Property, Plant and Equipment Property, plant and equipment are stated at cost. Depreciation is computed by use of the straight-line method over the estimated useful lives of the assets, which for buildings is the lesser of 30 years or the remaining life of the underlying building; between one to five years for machinery and equipment, including product tooling and manufacturing process equipment; and the shorter of lease terms or useful life for leasehold improvements. The Company capitalizes eligible costs to acquire or develop internal-use software that are incurred subsequent to the preliminary project stage. Capitalized costs related to internal-use software are amortized using the straight-line method over the estimated useful lives of the assets, which range from three to five years . Depreciation and amortization expense on property and equipment was $8.3 billion , $9.2 billion and $6.9 billion during 2016 , 2015 and 2014 , respectively. Long-Lived Assets Including Goodwill and Other Acquired Intangible Assets The Company reviews property, plant and equipment, inventory component prepayments and identifiable intangibles, excluding goodwill and intangible assets with indefinite useful lives, for impairment. Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of these assets is measured by comparison of their carrying amounts to future undiscounted cash flows the assets are expected to generate. If property, plant and equipment, inventory component prepayments and certain identifiable intangibles are considered to be impaired, the impairment to be recognized equals the amount by which the carrying value of the assets exceeds its fair value. The Company does not amortize goodwill and intangible assets with indefinite useful lives, rather such assets are required to be tested for impairment at least annually or sooner whenever events or changes in circumstances indicate that the assets may be impaired. The Company performs its goodwill and intangible asset impairment tests in the fourth quarter of each year. The Company did not recognize any impairment charges related to goodwill or indefinite lived intangible assets during 2016 , 2015 and 2014 . For purposes of testing goodwill for impairment, the Company established reporting units based on its current reporting structure. Goodwill has been allocated to these reporting units to the extent it relates to each reporting unit. In 2016 and 2015 , the Company’s goodwill was primarily allocated to the Americas and Europe reporting units. The Company amortizes its intangible assets with definite useful lives over their estimated useful lives and reviews these assets for impairment. The Company typically amortizes its acquired intangible assets with definite useful lives over periods from three to seven years . Fair Value Measurements The Company applies fair value accounting for all financial assets and liabilities and non-financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. The Company defines fair value 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, which are required to be recorded at fair value, the Company considers the principal or most advantageous market in which the Company would transact and the market-based risk measurements or assumptions that market participants would use to price the asset or liability, such as risks inherent in valuation techniques, transfer restrictions and credit risk. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: Level 1 – Quoted prices in active markets for identical assets or liabilities. Level 2 – Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 – Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing the asset or liability. The Company’s valuation techniques used to measure the fair value of money market funds and certain marketable equity securities were derived from quoted prices in active markets for identical assets or liabilities. The valuation techniques used to measure the fair value of the Company’s debt instruments and all other financial instruments, all of which have counterparties with high credit ratings, were valued based on quoted market prices or model-driven valuations using significant inputs derived from or corroborated by observable market data. In accordance with the fair value accounting requirements, companies may choose to measure eligible financial instruments and certain other items at fair value. The Company has not elected the fair value option for any eligible financial instruments. Foreign Currency Translation and Remeasurement The Company translates the assets and liabilities of its non-U.S. dollar functional currency subsidiaries into U.S. dollars using exchange rates in effect at the end of each period. Revenue and expenses for these subsidiaries are translated using rates that approximate those in effect during the period. Gains and losses from these translations are recognized in foreign currency translation included in AOCI in shareholders’ equity. The Company’s subsidiaries that use the U.S. dollar as their functional currency remeasure monetary assets and liabilities at exchange rates in effect at the end of each period, and inventories, property and nonmonetary assets and liabilities at historical rates.

Financial Instruments

Financial Instruments	12 Months Ended
	Sep. 24, 2016
Investments, All Other Investments [Abstract]
Financial Instruments	Financial Instruments Cash, Cash Equivalents and Marketable Securities The following tables show the Company’s cash and available-for-sale securities’ adjusted cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category recorded as cash and cash equivalents or short- or long-term marketable securities as of September 24, 2016 and September 26, 2015 (in millions): 2016 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Cash and Cash Equivalents Short-Term Marketable Securities Long-Term Marketable Securities Cash $ 8,601 $ — $ — $ 8,601 $ 8,601 $ — $ — Level 1: Money market funds 3,666 — — 3,666 3,666 — — Mutual funds 1,407 — (146 ) 1,261 — 1,261 — Subtotal 5,073 — (146 ) 4,927 3,666 1,261 — Level 2: U.S. Treasury securities 41,697 319 (4 ) 42,012 1,527 13,492 26,993 U.S. agency securities 7,543 16 — 7,559 2,762 2,441 2,356 Non-U.S. government securities 7,609 259 (27 ) 7,841 110 818 6,913 Certificates of deposit and time deposits 6,598 — — 6,598 1,108 3,897 1,593 Commercial paper 7,433 — — 7,433 2,468 4,965 — Corporate securities 131,166 1,409 (206 ) 132,369 242 19,599 112,528 Municipal securities 956 5 — 961 — 167 794 Mortgage- and asset-backed securities 19,134 178 (28 ) 19,284 — 31 19,253 Subtotal 222,136 2,186 (265 ) 224,057 8,217 45,410 170,430 Total $ 235,810 $ 2,186 $ (411 ) $ 237,585 $ 20,484 $ 46,671 $ 170,430 2015 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Cash and Cash Equivalents Short-Term Marketable Securities Long-Term Marketable Securities Cash $ 11,389 $ — $ — $ 11,389 $ 11,389 $ — $ — Level 1: Money market funds 1,798 — — 1,798 1,798 — — Mutual funds 1,772 — (144 ) 1,628 — 1,628 — Subtotal 3,570 — (144 ) 3,426 1,798 1,628 — Level 2: U.S. Treasury securities 34,902 181 (1 ) 35,082 — 3,498 31,584 U.S. agency securities 5,864 14 — 5,878 841 767 4,270 Non-U.S. government securities 6,356 45 (167 ) 6,234 43 135 6,056 Certificates of deposit and time deposits 4,347 — — 4,347 2,065 1,405 877 Commercial paper 6,016 — — 6,016 4,981 1,035 — Corporate securities 116,908 242 (985 ) 116,165 3 11,948 104,214 Municipal securities 947 5 — 952 — 48 904 Mortgage- and asset-backed securities 16,121 87 (31 ) 16,177 — 17 16,160 Subtotal 191,461 574 (1,184 ) 190,851 7,933 18,853 164,065 Total $ 206,420 $ 574 $ (1,328 ) $ 205,666 $ 21,120 $ 20,481 $ 164,065 The Company may sell certain of its marketable securities prior to their stated maturities for strategic reasons including, but not limited to, anticipation of credit deterioration and duration management. The maturities of the Company’s long-term marketable securities generally range from one to five years . The Company considers the declines in market value of its marketable securities investment portfolio to be temporary in nature. The Company typically invests in highly-rated securities, and its investment policy generally limits the amount of credit exposure to any one issuer. The policy generally requires investments to be investment grade, with the primary objective of minimizing the potential risk of principal loss. Fair values were determined for each individual security in the investment portfolio. When evaluating an investment for other-than-temporary impairment the Company reviews factors such as the length of time and extent to which fair value has been below its cost basis, the financial condition of the issuer and any changes thereto, changes in market interest rates and the Company’s intent to sell, or whether it is more likely than not it will be required to sell the investment before recovery of the investment’s cost basis. As of September 24, 2016 , the Company does not consider any of its investments to be other-than-temporarily impaired. Derivative Financial Instruments The Company may use derivatives to partially offset its business exposure to foreign currency and interest rate risk on expected future cash flows, on net investments in certain foreign subsidiaries and on certain existing assets and liabilities. However, the Company may choose not to hedge certain exposures for a variety of reasons including, but not limited to, accounting considerations and the prohibitive economic cost of hedging particular exposures. There can be no assurance the hedges will offset more than a portion of the financial impact resulting from movements in foreign currency exchange or interest rates. To help protect gross margins from fluctuations in foreign currency exchange rates, certain of the Company’s subsidiaries whose functional currency is the U.S. dollar may hedge a portion of forecasted foreign currency revenue, and subsidiaries whose functional currency is not the U.S. dollar and who sell in local currencies may hedge a portion of forecasted inventory purchases not denominated in the subsidiaries’ functional currencies. The Company may enter into forward contracts, option contracts or other instruments to manage this risk and may designate these instruments as cash flow hedges. The Company typically hedges portions of its forecasted foreign currency exposure associated with revenue and inventory purchases, typically for up to 12 months . To help protect the net investment in a foreign operation from adverse changes in foreign currency exchange rates, the Company may enter into foreign currency forward and option contracts to offset the changes in the carrying amounts of these investments due to fluctuations in foreign currency exchange rates. In addition, the Company may use non-derivative financial instruments, such as its foreign currency-denominated debt, as economic hedges of its net investments in certain foreign subsidiaries. In both of these cases, the Company designates these instruments as net investment hedges. The Company may also enter into non-designated foreign currency contracts to partially offset the foreign currency exchange gains and losses generated by the re-measurement of certain assets and liabilities denominated in non-functional currencies. The Company may enter into interest rate swaps, options, or other instruments to manage interest rate risk. These instruments may offset a portion of changes in income or expense, or changes in fair value of the Company’s term debt or investments. The Company designates these instruments as either cash flow or fair value hedges. The Company’s hedged interest rate transactions as of September 24, 2016 are expected to be recognized within 10 years . Cash Flow Hedges The effective portions of cash flow hedges are recorded in AOCI until the hedged item is recognized in earnings. Deferred gains and losses associated with cash flow hedges of foreign currency revenue are recognized as a component of net sales in the same period as the related revenue is recognized, and deferred gains and losses related to cash flow hedges of inventory purchases are recognized as a component of cost of sales in the same period as the related costs are recognized. Deferred gains and losses associated with cash flow hedges of interest income or expense are recognized in other income/(expense), net in the same period as the related income or expense is recognized. The ineffective portions and amounts excluded from the effectiveness testing of cash flow hedges are recognized in other income/(expense), net. Derivative instruments designated as cash flow hedges must be de-designated as hedges when it is probable the forecasted hedged transaction will not occur in the initially identified time period or within a subsequent two-month time period. Deferred gains and losses in AOCI associated with such derivative instruments are reclassified immediately into other income/(expense), net. Any subsequent changes in fair value of such derivative instruments are reflected in other income/(expense), net unless they are re-designated as hedges of other transactions. Net Investment Hedges The effective portions of net investment hedges are recorded in other comprehensive income (“OCI”) as a part of the cumulative translation adjustment. The ineffective portions and amounts excluded from the effectiveness testing of net investment hedges are recognized in other income/(expense), net. Fair Value Hedges Gains and losses related to changes in fair value hedges are recognized in earnings along with a corresponding loss or gain related to the change in value of the underlying hedged item. Non-Designated Derivatives Derivatives that are not designated as hedging instruments are adjusted to fair value through earnings in the financial statement line item to which the derivative relates. The Company records all derivatives in the Consolidated Balance Sheets at fair value. The Company’s accounting treatment for these derivative instruments is based on its hedge designation. The following tables show the Company’s derivative instruments at gross fair value as of September 24, 2016 and September 26, 2015 (in millions): 2016 Fair Value of Derivatives Designated as Hedge Instruments Fair Value of Derivatives Not Designated as Hedge Instruments Total Fair Value Derivative assets (1) : Foreign exchange contracts $ 518 $ 153 $ 671 Interest rate contracts $ 728 $ — $ 728 Derivative liabilities (2) : Foreign exchange contracts $ 935 $ 134 $ 1,069 Interest rate contracts $ 7 $ — $ 7 2015 Fair Value of Derivatives Designated as Hedge Instruments Fair Value of Derivatives Not Designated as Hedge Instruments Total Fair Value Derivative assets (1) : Foreign exchange contracts $ 1,442 $ 109 $ 1,551 Interest rate contracts $ 394 $ — $ 394 Derivative liabilities (2) : Foreign exchange contracts $ 905 $ 94 $ 999 Interest rate contracts $ 13 $ — $ 13 (1) The fair value of derivative assets is measured using Level 2 fair value inputs and is recorded as other current assets in the Consolidated Balance Sheets. (2) The fair value of derivative liabilities is measured using Level 2 fair value inputs and is recorded as accrued expenses in the Consolidated Balance Sheets. The following table shows the pre-tax gains and losses of the Company’s derivative and non-derivative instruments designated as cash flow, net investment and fair value hedges on OCI and the Consolidated Statements of Operations for 2016 , 2015 and 2014 (in millions): 2016 2015 2014 Gains/(Losses) recognized in OCI – effective portion: Cash flow hedges: Foreign exchange contracts $ 109 $ 3,592 $ 1,750 Interest rate contracts (57 ) (111 ) (15 ) Total $ 52 $ 3,481 $ 1,735 Net investment hedges: Foreign exchange contracts $ — $ 167 $ 53 Foreign currency debt (258 ) (71 ) — Total $ (258 ) $ 96 $ 53 Gains/(Losses) reclassified from AOCI into net income – effective portion: Cash flow hedges: Foreign exchange contracts $ 885 $ 4,092 $ (154 ) Interest rate contracts (11 ) (17 ) (16 ) Total $ 874 $ 4,075 $ (170 ) Gains/(Losses) on derivative instruments: Fair value hedges: Interest rate contracts $ 341 $ 337 $ 39 Gains/(Losses) related to hedged items: Fair value hedges: Interest rate contracts $ (341 ) $ (337 ) $ (39 ) The following table shows the notional amounts of the Company’s outstanding derivative instruments and credit risk amounts associated with outstanding or unsettled derivative instruments as of September 24, 2016 and September 26, 2015 (in millions): 2016 2015 Notional Amount Credit Risk Amount Notional Amount Credit Risk Amount Instruments designated as accounting hedges: Foreign exchange contracts $ 44,678 $ 518 $ 70,054 $ 1,385 Interest rate contracts $ 24,500 $ 728 $ 18,750 $ 394 Instruments not designated as accounting hedges: Foreign exchange contracts $ 54,305 $ 153 $ 49,190 $ 109 The notional amounts for outstanding derivative instruments provide one measure of the transaction volume outstanding and do not represent the amount of the Company’s exposure to credit or market loss. The credit risk amounts represent the Company’s gross exposure to potential accounting loss on derivative instruments that are outstanding or unsettled if all counterparties failed to perform according to the terms of the contract, based on then-current currency or interest rates at each respective date. The Company’s exposure to credit loss and market risk will vary over time as currency and interest rates change. Although the table above reflects the notional and credit risk amounts of the Company’s derivative instruments, it does not reflect the gains or losses associated with the exposures and transactions that the instruments are intended to hedge. The amounts ultimately realized upon settlement of these financial instruments, together with the gains and losses on the underlying exposures, will depend on actual market conditions during the remaining life of the instruments. The Company generally enters into master netting arrangements, which are designed to reduce credit risk by permitting net settlement of transactions with the same counterparty. To further limit credit risk, the Company generally enters into collateral security arrangements that provide for collateral to be received or posted when the net fair value of certain financial instruments fluctuates from contractually established thresholds. The Company presents its derivative assets and derivative liabilities at their gross fair values in its Consolidated Balance Sheets. The net cash collateral received by the Company related to derivative instruments under its collateral security arrangements was $163 million as of September 24, 2016 and $1.0 billion as of September 26, 2015 , which were recorded as accrued expenses in the Consolidated Balance Sheets. Under master netting arrangements with the respective counterparties to the Company’s derivative contracts, the Company is allowed to net settle transactions with a single net amount payable by one party to the other. As of September 24, 2016 and September 26, 2015 , the potential effects of these rights of set-off associated with the Company’s derivative contracts, including the effects of collateral, would be a reduction to both derivative assets and derivative liabilities of $1.5 billion and $2.2 billion , respectively, resulting in a net derivative asset of $160 million and a net derivative liability of $78 million , respectively. Accounts Receivable Trade Receivables The Company has considerable trade receivables outstanding with its third-party cellular network carriers, wholesalers, retailers, value-added resellers, small and mid-sized businesses and education, enterprise and government customers. The Company generally does not require collateral from its customers; however, the Company will require collateral in certain instances to limit credit risk. In addition, when possible, the Company attempts to limit credit risk on trade receivables with credit insurance for certain customers or by requiring third-party financing, loans or leases to support credit exposure. These credit-financing arrangements are directly between the third-party financing company and the end customer. As such, the Company generally does not assume any recourse or credit risk sharing related to any of these arrangements. As of September 24, 2016 and September 26, 2015 , the Company had one customer that represented 10% or more of total trade receivables, which accounted for 10% and 12% , respectively. The Company’s cellular network carriers accounted for 63% and 71% of trade receivables as of September 24, 2016 and September 26, 2015 , respectively. Vendor Non-Trade Receivables The Company has non-trade receivables from certain of its manufacturing vendors resulting from the sale of components to these vendors who manufacture sub-assemblies or assemble final products for the Company. The Company purchases these components directly from suppliers. Vendor non-trade receivables from two of the Company’s vendors accounted for 47% and 21% of total vendor non-trade receivables as of September 24, 2016 and three of the Company’s vendors accounted for 38% , 18% and 14% of total vendor non-trade receivables as of September 26, 2015 .

Consolidated Financial Statemen

Consolidated Financial Statement Details	12 Months Ended
	Sep. 24, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidated Financial Statement Details	Consolidated Financial Statement Details The following tables show the Company’s consolidated financial statement details as of September 24, 2016 and September 26, 2015 (in millions): Property, Plant and Equipment, Net 2016 2015 Land and buildings $ 10,185 $ 6,956 Machinery, equipment and internal-use software 44,543 37,038 Leasehold improvements 6,517 5,263 Gross property, plant and equipment 61,245 49,257 Accumulated depreciation and amortization (34,235 ) (26,786 ) Total property, plant and equipment, net $ 27,010 $ 22,471 Other Non-Current Liabilities 2016 2015 Deferred tax liabilities $ 26,019 $ 24,062 Other non-current liabilities 10,055 9,365 Total other non-current liabilities $ 36,074 $ 33,427 Other Income/(Expense), Net The following table shows the detail of other income/(expense), net for 2016 , 2015 and 2014 (in millions): 2016 2015 2014 Interest and dividend income $ 3,999 $ 2,921 $ 1,795 Interest expense (1,456 ) (733 ) (384 ) Other expense, net (1,195 ) (903 ) (431 ) Total other income/(expense), net $ 1,348 $ 1,285 $ 980

Acquired Intangible Assets

Acquired Intangible Assets	12 Months Ended
	Sep. 24, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Acquired Intangible Assets	Acquired Intangible Assets The Company’s acquired intangible assets with definite useful lives primarily consist of patents and licenses. The following table summarizes the components of gross and net acquired intangible asset balances as of September 24, 2016 and September 26, 2015 (in millions): 2016 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Definite-lived and amortizable acquired intangible assets $ 8,912 $ (5,806 ) $ 3,106 $ 8,125 $ (4,332 ) $ 3,793 Indefinite-lived and non-amortizable acquired intangible assets 100 — 100 100 — 100 Total acquired intangible assets $ 9,012 $ (5,806 ) $ 3,206 $ 8,225 $ (4,332 ) $ 3,893 Amortization expense related to acquired intangible assets was $1.5 billion , $1.3 billion and $1.1 billion in 2016 , 2015 and 2014 , respectively. As of September 24, 2016 , the remaining weighted-average amortization period for acquired intangible assets is 3.4 years . The expected annual amortization expense related to acquired intangible assets as of September 24, 2016 , is as follows (in millions): 2017 $ 1,197 2018 902 2019 449 2020 255 2021 175 Thereafter 128 Total $ 3,106

Income Taxes

Income Taxes	12 Months Ended
	Sep. 24, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The provision for income taxes for 2016 , 2015 and 2014 , consisted of the following (in millions): 2016 2015 2014 Federal: Current $ 7,652 $ 11,730 $ 8,624 Deferred 5,043 3,408 3,183 12,695 15,138 11,807 State: Current 990 1,265 855 Deferred (138 ) (220 ) (178 ) 852 1,045 677 Foreign: Current 2,105 4,744 2,147 Deferred 33 (1,806 ) (658 ) 2,138 2,938 1,489 Provision for income taxes $ 15,685 $ 19,121 $ 13,973 The foreign provision for income taxes is based on foreign pre-tax earnings of $41.1 billion , $47.6 billion and $33.6 billion in 2016, 2015 and 2014, respectively. The Company’s consolidated financial statements provide for any related tax liability on undistributed earnings that the Company does not intend to be indefinitely reinvested outside the U.S. Substantially all of the Company’s undistributed international earnings intended to be indefinitely reinvested in operations outside the U.S. were generated by subsidiaries organized in Ireland, which has a statutory tax rate of 12.5% . As of September 24, 2016 , U.S. income taxes have not been provided on a cumulative total of $109.8 billion of such earnings. The amount of unrecognized deferred tax liability related to these temporary differences is estimated to be $35.9 billion . As of September 24, 2016 and September 26, 2015 , $216.0 billion and $186.9 billion , respectively, of the Company’s cash, cash equivalents and marketable securities were held by foreign subsidiaries and are generally based in U.S. dollar-denominated holdings. Amounts held by foreign subsidiaries are generally subject to U.S. income taxation on repatriation to the U.S. A reconciliation of the provision for income taxes, with the amount computed by applying the statutory federal income tax rate ( 35% in 2016 , 2015 and 2014 ) to income before provision for income taxes for 2016 , 2015 and 2014 , is as follows (dollars in millions): 2016 2015 2014 Computed expected tax $ 21,480 $ 25,380 $ 18,719 State taxes, net of federal effect 553 680 469 Indefinitely invested earnings of foreign subsidiaries (5,582 ) (6,470 ) (4,744 ) Domestic production activities deduction (382 ) (426 ) (495 ) Research and development credit, net (371 ) (171 ) (88 ) Other (13 ) 128 112 Provision for income taxes $ 15,685 $ 19,121 $ 13,973 Effective tax rate 25.6 % 26.4 % 26.1 % The Company’s income taxes payable have been reduced by the tax benefits from employee stock plan awards. For RSUs, the Company receives an income tax benefit upon the award’s vesting equal to the tax effect of the underlying stock’s fair market value. The Company had net excess tax benefits from equity awards of $379 million , $748 million and $706 million in 2016 , 2015 and 2014 , respectively, which were reflected as increases to common stock. As of September 24, 2016 and September 26, 2015 , the significant components of the Company’s deferred tax assets and liabilities were (in millions): 2016 2015 Deferred tax assets: Accrued liabilities and other reserves $ 4,135 $ 4,205 Basis of capital assets 2,107 2,238 Deferred revenue 1,717 1,941 Deferred cost sharing 667 667 Share-based compensation 601 575 Unrealized losses — 564 Other 788 721 Total deferred tax assets, net of valuation allowance of $0 10,015 10,911 Deferred tax liabilities: Unremitted earnings of foreign subsidiaries 31,436 26,868 Other 485 303 Total deferred tax liabilities 31,921 27,171 Net deferred tax liabilities $ (21,906 ) $ (16,260 ) Deferred tax assets and liabilities reflect the effects of tax losses, credits and the future income tax effects of temporary differences between the consolidated financial statement carrying amounts of existing assets and liabilities and their respective tax bases and are measured using enacted tax rates that apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Uncertain Tax Positions Tax positions are evaluated in a two-step process. The Company first determines whether it is more likely than not that a tax position will be sustained upon examination. If a tax position meets the more-likely-than-not recognition threshold it is then measured to determine the amount of benefit to recognize in the financial statements. The tax position is measured as the largest amount of benefit that is greater than 50% likely of being realized upon ultimate settlement. The Company classifies gross interest and penalties and unrecognized tax benefits that are not expected to result in payment or receipt of cash within one year as non-current liabilities in the Consolidated Balance Sheets. As of September 24, 2016 , the total amount of gross unrecognized tax benefits was $7.7 billion , of which $2.8 billion , if recognized, would affect the Company’s effective tax rate. As of September 26, 2015 , the total amount of gross unrecognized tax benefits was $6.9 billion , of which $2.5 billion , if recognized, would affect the Company’s effective tax rate. The aggregate changes in the balance of gross unrecognized tax benefits, which excludes interest and penalties, for 2016 , 2015 and 2014 , is as follows (in millions): 2016 2015 2014 Beginning Balance $ 6,900 $ 4,033 $ 2,714 Increases related to tax positions taken during a prior year 1,121 2,056 1,295 Decreases related to tax positions taken during a prior year (257 ) (345 ) (280 ) Increases related to tax positions taken during the current year 1,578 1,278 882 Decreases related to settlements with taxing authorities (1,618 ) (109 ) (574 ) Decreases related to expiration of statute of limitations — (13 ) (4 ) Ending Balance $ 7,724 $ 6,900 $ 4,033 The Company includes interest and penalties related to unrecognized tax benefits within the provision for income taxes. As of September 24, 2016 and September 26, 2015 , the total amount of gross interest and penalties accrued was $1.0 billion and $1.3 billion , respectively, which is classified as non-current liabilities in the Consolidated Balance Sheets. In connection with tax matters, the Company recognized interest and penalty expense in 2016 , 2015 and 2014 of $295 million , $709 million and $40 million , respectively. The Company is subject to taxation and files income tax returns in the U.S. federal jurisdiction and in many state and foreign jurisdictions. During the fourth quarter of 2016, the Company reached a partial settlement with the U.S. Internal Revenue Service (the “IRS”) on its examination of the years 2010 through 2012. In connection with this settlement, the Company recognized a tax benefit in the fourth quarter of 2016 that was not significant to its consolidated financial statements. All years prior to 2013 are closed, except for the years 2010 through 2012 relating to R&D tax credits. In addition, the Company is subject to audits by state, local and foreign tax authorities. In major states and major foreign jurisdictions, the years subsequent to 2003 generally remain open and could be subject to examination by the taxing authorities. The Company believes that an adequate provision has been made for any adjustments that may result from tax examinations. However, the outcome of tax audits cannot be predicted with certainty. If any issues addressed in the Company’s tax audits are resolved in a manner not consistent with its expectations, the Company could be required to adjust its provision for income taxes in the period such resolution occurs. Although timing of the resolution and/or closure of audits is not certain, the Company believes it is reasonably possible that its gross unrecognized tax benefits could decrease (whether by payment, release or a combination of both) in the next 12 months by up to $850 million . On August 30, 2016, the European Commission announced its decision that Ireland granted state aid to the Company by providing tax opinions in 1991 and 2007 concerning the tax allocation of profits of the Irish branches of two subsidiaries of the Company (the "State Aid Decision"). The State Aid Decision orders Ireland to calculate and recover additional taxes from the Company for the period June 2003 through September 2014. Irish legislative changes, effective as of the beginning of 2015, eliminated the application of the tax opinions from that date forward. The Company believes the State Aid Decision to be without merit and intends to appeal to the General Court of the Court of Justice of the European Union. Ireland has also announced its intention to appeal the State Aid Decision. While the European Commission announced a recovery amount of up to €13 billion , plus interest, the actual amount of additional taxes subject to recovery is to be calculated by Ireland in accordance with the European Commission's guidance. Once the recovery amount is computed by Ireland, the Company anticipates funding it, including interest, out of foreign cash into escrow, pending conclusion of all appeals. The Company believes that any incremental Irish corporate income taxes potentially due would be creditable against U.S. taxes.

Debt

Debt	12 Months Ended
	Sep. 24, 2016
Debt Disclosure [Abstract]
Debt	Debt Commercial Paper The Company issues unsecured short-term promissory notes (“Commercial Paper”) pursuant to a commercial paper program. The Company uses net proceeds from the commercial paper program for general corporate purposes, including dividends and share repurchases. As of September 24, 2016 and September 26, 2015 , the Company had $8.1 billion and $8.5 billion of Commercial Paper outstanding, respectively, with maturities generally less than nine months . The weighted-average interest rate of the Company’s Commercial Paper was 0.45% as of September 24, 2016 and 0.14% as of September 26, 2015 . The following table provides a summary of cash flows associated with the issuance and maturities of Commercial Paper for 2016 and 2015 (in millions): 2016 2015 Maturities less than 90 days: Proceeds from (repayments of) commercial paper, net $ (869 ) $ 5,293 Maturities greater than 90 days: Proceeds from commercial paper 3,632 3,851 Repayments of commercial paper (3,160 ) (6,953 ) Maturities greater than 90 days, net 472 (3,102 ) Total change in commercial paper, net $ (397 ) $ 2,191 Long-Term Debt As of September 24, 2016 , the Company had outstanding floating- and fixed-rate notes with varying maturities for an aggregate principal amount of $78.4 billion (collectively the “Notes”). The Notes are senior unsecured obligations, and interest is payable in arrears, quarterly for the U.S. dollar-denominated and Australian dollar-denominated floating-rate notes, semi-annually for the U.S. dollar-denominated, Australian dollar-denominated, British pound-denominated and Japanese yen-denominated fixed-rate notes and annually for the euro-denominated and Swiss franc-denominated fixed-rate notes. The following table provides a summary of the Company’s term debt as of September 24, 2016 and September 26, 2015 : Maturities 2016 2015 Amount (in millions) Effective Interest Rate Amount (in millions) Effective Interest Rate 2013 debt issuance of $17.0 billion: Floating-rate notes 2018 $ 2,000 1.10% $ 3,000 0.51% - 1.10% Fixed-rate 1.000% - 3.850% notes 2018 - 2043 12,500 1.08% - 3.91% 14,000 0.51% - 3.91% 2014 debt issuance of $12.0 billion: Floating-rate notes 2017 - 2019 2,000 0.86% - 1.09% 2,000 0.37% - 0.60% Fixed-rate 1.050% - 4.450% notes 2017 - 2044 10,000 0.85% - 4.48% 10,000 0.37% - 4.48% 2015 debt issuances of $27.3 billion: Floating-rate notes 2017 - 2020 1,781 0.87% - 1.87% 1,743 0.36% - 1.87% Fixed-rate 0.350% - 4.375% notes 2017 - 2045 25,144 0.28% - 4.51% 24,958 0.28% - 4.51% Second quarter 2016 debt issuance of $15.5 billion: Floating-rate notes 2019 500 1.64 % — — Floating-rate notes 2021 500 1.95 % — — Fixed-rate 1.300% notes 2018 500 1.32 % — — Fixed-rate 1.700% notes 2019 1,000 1.71 % — — Fixed-rate 2.250% notes 2021 3,000 1.91 % — — Fixed-rate 2.850% notes 2023 1,500 2.58 % — — Fixed-rate 3.250% notes 2026 3,250 2.51 % — — Fixed-rate 4.500% notes 2036 1,250 4.54 % — — Fixed-rate 4.650% notes 2046 4,000 4.58 % — — Third quarter 2016 Australian dollar-denominated debt issuance of A$1.4 billion: Fixed-rate 2.650% notes 2020 493 1.92 % — — Fixed-rate 3.350% notes 2024 342 2.61 % — — Fixed-rate 3.600% notes 2026 247 2.84 % — — Third quarter 2016 debt issuance of $1.4 billion: Fixed-rate 4.150% notes 2046 1,377 4.15 % — — Fourth quarter 2016 debt issuance of $7.0 billion: Floating-rate notes 2019 350 0.91 % — — Fixed-rate 1.100% notes 2019 1,150 1.13 % — — Fixed-rate 1.550% notes 2021 1,250 1.40 % — — Fixed-rate 2.450% notes 2026 2,250 2.15 % — — Fixed-rate 3.850% notes 2046 2,000 3.86 % — — Total term debt 78,384 55,701 Unamortized premium/(discount) and issuance costs, net (174 ) (248 ) Hedge accounting fair value adjustments 717 376 Less: Current portion of long-term debt, net (3,500 ) (2,500 ) Total long-term debt $ 75,427 $ 53,329 To manage foreign currency risk associated with the Australian dollar-denominated notes issued in the third quarter of 2016, the Company entered into currency swaps with an aggregate notional amount of $1.0 billion , which effectively converted these notes to U.S. dollar-denominated notes. To manage interest rate risk on the U.S. dollar-denominated fixed-rate notes issued in the second quarter of 2016 and maturing in 2021, 2023 and 2026, the Company entered into interest rate swaps with an aggregate notional amount of $5.0 billion . To manage interest rate risk on the U.S. dollar-denominated fixed-rate notes issued in the fourth quarter of 2016 and maturing in 2021 and 2026, the Company entered into interest rate swaps with an aggregate notional amount of $1.8 billion . These interest rate swaps effectively converted a portion of the U.S. dollar-denominated fixed-rate notes to floating interest rate notes. As of September 24, 2016 , ¥195.5 billion of the Japanese yen-denominated notes was designated as a hedge of the foreign currency exposure of its net investment in a foreign operation. The foreign currency transaction gain or loss on the Japanese yen-denominated debt designated as a hedge is recorded in OCI as a part of the cumulative translation adjustment. As of September 24, 2016 , the carrying value of the debt designated as a net investment hedge was $1.9 billion . For further discussion regarding the Company’s use of derivative instruments see the Derivative Financial Instruments section of Note 2, “Financial Instruments.” The effective interest rates for the Notes include the interest on the Notes, amortization of the discount and, if applicable, adjustments related to hedging. The Company recognized $1.4 billion , $722 million and $381 million of interest expense on its term debt for 2016 , 2015 and 2014 , respectively. The future principal payments for the Company’s Notes as of September 24, 2016 are as follows (in millions): 2017 $ 3,500 2018 6,500 2019 6,834 2020 6,454 2021 7,750 Thereafter 47,346 Total term debt $ 78,384 As of September 24, 2016 and September 26, 2015 , the fair value of the Company’s Notes, based on Level 2 inputs, was $81.7 billion and $54.9 billion , respectively.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Sep. 24, 2016
Equity [Abstract]
Shareholders' Equity	Shareholders’ Equity Dividends The Company declared and paid cash dividends per share during the periods presented as follows: Dividends Per Share Amount (in millions) 2016: Fourth quarter $ 0.57 $ 3,071 Third quarter 0.57 3,117 Second quarter 0.52 2,879 First quarter 0.52 2,898 Total cash dividends declared and paid $ 2.18 $ 11,965 2015: Fourth quarter $ 0.52 $ 2,950 Third quarter 0.52 2,997 Second quarter 0.47 2,734 First quarter 0.47 2,750 Total cash dividends declared and paid $ 1.98 $ 11,431 Future dividends are subject to declaration by the Board of Directors. Share Repurchase Program In April 2016, the Company’s Board of Directors increased the share repurchase authorization from $140 billion to $175 billion of the Company’s common stock, of which $133 billion had been utilized as of September 24, 2016 . The Company’s share repurchase program does not obligate it to acquire any specific number of shares. Under the program, shares may be repurchased in privately negotiated and/or open market transactions, including under plans complying with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The Company has entered, and in the future may enter, into accelerated share repurchase arrangements (“ASRs”) with financial institutions. In exchange for up-front payments, the financial institutions deliver shares of the Company’s common stock during the purchase periods of each ASR. The total number of shares ultimately delivered, and therefore the average repurchase price paid per share, is determined at the end of the applicable purchase period of each ASR based on the volume weighted-average price of the Company’s common stock during that period. The shares received are retired in the periods they are delivered, and the up-front payments are accounted for as a reduction to shareholders’ equity in the Company’s Consolidated Balance Sheets in the periods the payments are made. The Company reflects the ASRs as a repurchase of common stock in the period delivered for purposes of calculating earnings per share and as forward contracts indexed to its own common stock. The ASRs met all of the applicable criteria for equity classification, and therefore were not accounted for as derivative instruments. The following table shows the Company’s ASR activity and related information during the years ended September 24, 2016 and September 26, 2015 : Purchase Period End Date Number of Shares (in thousands) Average Repurchase Price Per Share ASR Amount (in millions) August 2016 ASR November 2016 22,468 (1) (1) $ 3,000 May 2016 ASR August 2016 60,452 (2) $ 99.25 $ 6,000 November 2015 ASR April 2016 29,122 $ 103.02 $ 3,000 May 2015 ASR July 2015 48,293 $ 124.24 $ 6,000 August 2014 ASR February 2015 81,525 $ 110.40 $ 9,000 January 2014 ASR December 2014 134,247 $ 89.39 $ 12,000 (1) “Number of Shares” represents those shares delivered in the beginning of the purchase period and does not represent the final number of shares to be delivered under the ASR. The total number of shares ultimately delivered, and therefore the average repurchase price paid per share, will be determined at the end of the purchase period based on the volume-weighted average price of the Company’s common stock during that period. The August 2016 ASR purchase period will end in or before November 2016. (2) Includes 48.2 million shares delivered and retired at the beginning of the purchase period, which began in the third quarter of 2016, and 12.3 million shares delivered and retired at the end of the purchase period, which concluded in the fourth quarter of 2016. Additionally, the Company repurchased shares of its common stock in the open market, which were retired upon repurchase, during the periods presented as follows: Number of Shares (in thousands) Average Repurchase Price Per Share Amount (in millions) 2016: Fourth quarter 28,579 $ 104.97 $ 3,000 Third quarter 41,238 $ 97.00 4,000 Second quarter 71,766 $ 97.54 7,000 First quarter 25,984 $ 115.45 3,000 Total open market common stock repurchases 167,567 $ 17,000 2015: Fourth quarter 121,802 $ 115.15 $ 14,026 Third quarter 31,231 $ 128.08 4,000 Second quarter 56,400 $ 124.11 7,000 First quarter 45,704 $ 109.40 5,000 Total open market common stock repurchases 255,137 $ 30,026

Comprehensive Income

Comprehensive Income	12 Months Ended
	Sep. 24, 2016
Equity [Abstract]
Comprehensive Income	Comprehensive Income Comprehensive income consists of two components, net income and OCI. OCI refers to revenue, expenses, and gains and losses that under GAAP are recorded as an element of shareholders’ equity but are excluded from net income. The Company’s OCI consists of foreign currency translation adjustments from those subsidiaries not using the U.S. dollar as their functional currency, net deferred gains and losses on certain derivative instruments accounted for as cash flow hedges and unrealized gains and losses on marketable securities classified as available-for-sale. The following table shows the pre-tax amounts reclassified from AOCI into the Consolidated Statements of Operations, and the associated financial statement line item, for 2016 and 2015 (in millions): Comprehensive Income Components Financial Statement Line Item 2016 2015 Unrealized (gains)/losses on derivative instruments: Foreign exchange contracts Revenue $ (865 ) $ (2,432 ) Cost of sales (130 ) (2,168 ) Other income/(expense), net 111 456 Interest rate contracts Other income/(expense), net 12 17 (872 ) (4,127 ) Unrealized (gains)/losses on marketable securities Other income/(expense), net 87 91 Total amounts reclassified from AOCI $ (785 ) $ (4,036 ) The following table shows the changes in AOCI by component for 2016 and 2015 (in millions): Cumulative Foreign Currency Translation Unrealized Gains/Losses on Derivative Instruments Unrealized Gains/Losses on Marketable Securities Total Balance at September 27, 2014 $ (242 ) $ 1,364 $ (40 ) $ 1,082 Other comprehensive income/(loss) before reclassifications (612 ) 3,346 (747 ) 1,987 Amounts reclassified from AOCI — (4,127 ) 91 (4,036 ) Tax effect 201 189 232 622 Other comprehensive income/(loss) (411 ) (592 ) (424 ) (1,427 ) Balance at September 26, 2015 (653 ) 772 (464 ) (345 ) Other comprehensive income/(loss) before reclassifications 67 14 2,445 2,526 Amounts reclassified from AOCI — (872 ) 87 (785 ) Tax effect 8 124 (894 ) (762 ) Other comprehensive income/(loss) 75 (734 ) 1,638 979 Balance at September 24, 2016 $ (578 ) $ 38 $ 1,174 $ 634

Benefit Plans

Benefit Plans	12 Months Ended
	Sep. 24, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Benefit Plans	Benefit Plans 2014 Employee Stock Plan In the second quarter of 2014, shareholders approved the 2014 Employee Stock Plan (the “2014 Plan”) and terminated the Company’s authority to grant new awards under the 2003 Employee Stock Plan (the “2003 Plan”). The 2014 Plan provides for broad-based equity grants to employees, including executive officers, and permits the granting of RSUs, stock grants, performance-based awards, stock options and stock appreciation rights, as well as cash bonus awards. RSUs granted under the 2014 Plan generally vest over four years , based on continued employment, and are settled upon vesting in shares of the Company’s common stock on a one -for-one basis. Each share issued with respect to RSUs granted under the 2014 Plan reduces the number of shares available for grant under the plan by two shares. RSUs cancelled and shares withheld to satisfy tax withholding obligations increase the number of shares available for grant under the 2014 Plan utilizing a factor of two times the number of RSUs cancelled or shares withheld. Currently, all RSUs granted under the 2014 Plan have dividend equivalent rights (“DERs”), which entitle holders of RSUs to the same dividend value per share as holders of common stock. DERs are subject to the same vesting and other terms and conditions as the corresponding unvested RSUs. DERs are accumulated and paid when the underlying shares vest. Upon approval of the 2014 Plan, the Company reserved 385 million shares plus the number of shares remaining that were reserved but not issued under the 2003 Plan. Shares subject to outstanding awards under the 2003 Plan that expire, are cancelled or otherwise terminate, or are withheld to satisfy tax withholding obligations with respect to RSUs, will also be available for awards under the 2014 Plan. As of September 24, 2016 , approximately 386.4 million shares were reserved for future issuance under the 2014 Plan. 2003 Employee Stock Plan The 2003 Plan is a shareholder approved plan that provided for broad-based equity grants to employees, including executive officers. The 2003 Plan permitted the granting of incentive stock options, nonstatutory stock options, RSUs, stock appreciation rights, stock purchase rights and performance-based awards. Options granted under the 2003 Plan generally expire seven to ten years after the grant date and generally become exercisable over a period of four years , based on continued employment, with either annual, semi-annual or quarterly vesting. RSUs granted under the 2003 Plan generally vest over two to four years , based on continued employment and are settled upon vesting in shares of the Company’s common stock on a one -for-one basis. All RSUs, other than RSUs held by the Chief Executive Officer, granted under the 2003 Plan have DERs. DERs are subject to the same vesting and other terms and conditions as the corresponding unvested RSUs. DERs are accumulated and paid when the underlying shares vest. In the second quarter of 2014, the Company terminated the authority to grant new awards under the 2003 Plan. 1997 Director Stock Plan The 1997 Director Stock Plan (the “Director Plan”) is a shareholder approved plan that (i) permits the Company to grant awards of RSUs or stock options to the Company’s non-employee directors, (ii) provides for automatic initial grants of RSUs upon a non-employee director joining the Board of Directors and automatic annual grants of RSUs at each annual meeting of shareholders, and (iii) permits the Board of Directors to prospectively change the relative mixture of stock options and RSUs for the initial and annual award grants and the methodology for determining the number of shares of the Company’s common stock subject to these grants without shareholder approval. Each share issued with respect to RSUs granted under the Director Plan reduces the number of shares available for grant under the plan by two shares. The Director Plan expires November 9, 2019 . All RSUs granted under the Director Plan are entitled to DERs. DERs are subject to the same vesting and other terms and conditions as the corresponding unvested RSUs. DERs are accumulated and paid when the underlying shares vest. As of September 24, 2016 , approximately 1.1 million shares were reserved for future issuance under the Director Plan. Rule 10b5-1 Trading Plans During the three months ended September 24, 2016 , Section 16 officers Timothy D. Cook, Angela Ahrendts, Luca Maestri, Daniel Riccio, Philip Schiller and Jeffrey Williams had equity trading plans in place in accordance with Rule 10b5-1(c)(1) under the Exchange Act. An equity trading plan is a written document that pre-establishes the amounts, prices and dates (or formula for determining the amounts, prices and dates) of future purchases or sales of the Company’s stock, including shares acquired pursuant to the Company’s employee and director equity plans. Employee Stock Purchase Plan The Employee Stock Purchase Plan (the “Purchase Plan”) is a shareholder approved plan under which substantially all employees may purchase the Company’s common stock through payroll deductions at a price equal to 85% of the lower of the fair market values of the stock as of the beginning or the end of six -month offering periods. An employee’s payroll deductions under the Purchase Plan are limited to 10% of the employee’s compensation and employees may not purchase more than $25,000 of stock during any calendar year. As of September 24, 2016 , approximately 47.0 million shares were reserved for future issuance under the Purchase Plan. 401(k) Plan The Company’s 401(k) Plan is a deferred salary arrangement under Section 401(k) of the Internal Revenue Code. Under the 401(k) Plan, participating U.S. employees may defer a portion of their pre-tax earnings, up to the IRS annual contribution limit ( $18,000 for calendar year 2016). The Company matches 50% to 100% of each employee’s contributions, depending on length of service, up to a maximum 6% of the employee’s eligible earnings. Restricted Stock Units A summary of the Company’s RSU activity and related information for 2016 , 2015 and 2014 , is as follows: Number of RSUs (in thousands) Weighted-Average Grant Date Fair Value Per Share Aggregate Intrinsic Value (in millions) Balance at September 28, 2013 93,284 $ 62.24 RSUs granted 59,269 $ 74.54 RSUs vested (43,111 ) $ 57.29 RSUs cancelled (5,620 ) $ 68.47 Balance at September 27, 2014 103,822 $ 70.98 RSUs granted 45,587 $ 105.51 RSUs vested (41,684 ) $ 71.32 RSUs cancelled (6,258 ) $ 80.34 Balance at September 26, 2015 101,467 $ 85.77 RSUs granted 49,468 $ 109.28 RSUs vested (46,313 ) $ 84.44 RSUs cancelled (5,533 ) $ 96.48 Balance at September 24, 2016 99,089 $ 97.54 $ 11,168 The fair value as of the respective vesting dates of RSUs was $5.1 billion , $4.8 billion and $3.4 billion for 2016 , 2015 and 2014 , respectively. The majority of RSUs that vested in 2016 , 2015 and 2014 were net-share settled such that the Company withheld shares with value equivalent to the employees’ minimum statutory obligation for the applicable income and other employment taxes, and remitted the cash to the appropriate taxing authorities. The total shares withheld were approximately 15.9 million , 14.1 million and 15.6 million for 2016 , 2015 and 2014 , respectively, and were based on the value of the RSUs on their respective vesting dates as determined by the Company’s closing stock price. Total payments for the employees’ tax obligations to taxing authorities were $1.7 billion , $1.6 billion and $1.2 billion in 2016 , 2015 and 2014 , respectively, and are reflected as a financing activity within the Consolidated Statements of Cash Flows. These net-share settlements had the effect of share repurchases by the Company as they reduced the number of shares that would have otherwise been issued as a result of the vesting and did not represent an expense to the Company. Share-based Compensation The following table shows a summary of the share-based compensation expense included in the Consolidated Statements of Operations for 2016 , 2015 and 2014 (in millions): 2016 2015 2014 Cost of sales $ 769 $ 575 $ 450 Research and development 1,889 1,536 1,216 Selling, general and administrative 1,552 1,475 1,197 Total share-based compensation expense $ 4,210 $ 3,586 $ 2,863 The income tax benefit related to share-based compensation expense was $1.4 billion , $1.2 billion and $1.0 billion for 2016 , 2015 and 2014 , respectively. As of September 24, 2016 , the total unrecognized compensation cost related to outstanding stock options, RSUs and restricted stock was $7.5 billion , which the Company expects to recognize over a weighted-average period of 2.6 years .

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Sep. 24, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Accrued Warranty and Indemnification The following table shows changes in the Company’s accrued warranties and related costs for 2016 , 2015 and 2014 (in millions): 2016 2015 2014 Beginning accrued warranty and related costs $ 4,780 $ 4,159 $ 2,967 Cost of warranty claims (4,663 ) (4,401 ) (3,760 ) Accruals for product warranty 3,585 5,022 4,952 Ending accrued warranty and related costs $ 3,702 $ 4,780 $ 4,159 The Company generally does not indemnify end-users of its operating system and application software against legal claims that the software infringes third-party intellectual property rights. Other agreements entered into by the Company sometimes include indemnification provisions under which the Company could be subject to costs and/or damages in the event of an infringement claim against the Company or an indemnified third-party. In the opinion of management, there was not at least a reasonable possibility the Company may have incurred a material loss with respect to indemnification of end-users of its operating system or application software for infringement of third-party intellectual property rights. The Company offers an iPhone Upgrade Program, which is available to customers who purchase a qualifying iPhone in the U.S., the U.K. and mainland China. The iPhone Upgrade Program provides customers the right to trade in that iPhone for a specified amount when purchasing a new iPhone, provided certain conditions are met. The Company accounts for the trade-in right as a guarantee liability and recognizes arrangement revenue net of the fair value of such right with subsequent changes to the guarantee liability recognized within revenue. The Company has entered into indemnification agreements with its directors and executive officers. Under these agreements, the Company has agreed to indemnify such individuals to the fullest extent permitted by law against liabilities that arise by reason of their status as directors or officers and to advance expenses incurred by such individuals in connection with related legal proceedings. It is not possible to determine the maximum potential amount of payments the Company could be required to make under these agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each claim. However, the Company maintains directors and officers liability insurance coverage to reduce its exposure to such obligations. Concentrations in the Available Sources of Supply of Materials and Product Although most components essential to the Company’s business are generally available from multiple sources, a number of components are currently obtained from single or limited sources. In addition, the Company competes for various components with other participants in the markets for mobile communication and media devices and personal computers. Therefore, many components used by the Company, including those that are available from multiple sources, are at times subject to industry-wide shortage and significant pricing fluctuations that could materially adversely affect the Company’s financial condition and operating results. The Company uses some custom components that are not commonly used by its competitors, and new products introduced by the Company often utilize custom components available from only one source. When a component or product uses new technologies, initial capacity constraints may exist until the suppliers’ yields have matured or manufacturing capacity has increased. If the Company’s supply of components for a new or existing product were delayed or constrained, or if an outsourcing partner delayed shipments of completed products to the Company, the Company’s financial condition and operating results could be materially adversely affected. The Company’s business and financial performance could also be materially adversely affected depending on the time required to obtain sufficient quantities from the original source, or to identify and obtain sufficient quantities from an alternative source. Continued availability of these components at acceptable prices, or at all, may be affected if those suppliers concentrated on the production of common components instead of components customized to meet the Company’s requirements. The Company has entered into agreements for the supply of many components; however, there can be no guarantee that the Company will be able to extend or renew these agreements on similar terms, or at all. Therefore, the Company remains subject to significant risks of supply shortages and price increases that could materially adversely affect its financial condition and operating results. Substantially all of the Company’s hardware products are manufactured by outsourcing partners that are located primarily in Asia. A significant concentration of this manufacturing is currently performed by a small number of outsourcing partners, often in single locations. Certain of these outsourcing partners are the sole-sourced suppliers of components and manufacturers for many of the Company’s products. Although the Company works closely with its outsourcing partners on manufacturing schedules, the Company’s operating results could be adversely affected if its outsourcing partners were unable to meet their production commitments. The Company’s manufacturing purchase obligations typically cover its requirements for periods up to 150 days . Other Off-Balance Sheet Commitments Operating Leases The Company leases various equipment and facilities, including retail space, under noncancelable operating lease arrangements. The Company does not currently utilize any other off-balance sheet financing arrangements. As of September 24, 2016 , the Company’s total future minimum lease payments under noncancelable operating leases were $7.6 billion . The Company's retail store and other facility leases are typically for terms not exceeding 10 years and generally contain multi-year renewal options. Rent expense under all operating leases, including both cancelable and noncancelable leases, was $939 million , $794 million and $717 million in 2016 , 2015 and 2014 , respectively. Future minimum lease payments under noncancelable operating leases having remaining terms in excess of one year as of September 24, 2016 , are as follows (in millions): 2017 $ 929 2018 919 2019 915 2020 889 2021 836 Thereafter 3,139 Total $ 7,627 Contingencies The Company is subject to various legal proceedings and claims that have arisen in the ordinary course of business and that have not been fully adjudicated, as further discussed in Part I, Item 1A of this Form 10-K under the heading “Risk Factors” and in Part I, Item 3 of this Form 10-K under the heading “Legal Proceedings.” In the opinion of management, there was not at least a reasonable possibility the Company may have incurred a material loss, or a material loss in excess of a recorded accrual, with respect to loss contingencies for asserted legal and other claims. However, the outcome of litigation is inherently uncertain. Therefore, although management considers the likelihood of such an outcome to be remote, if one or more of these legal matters were resolved against the Company in a reporting period for amounts in excess of management’s expectations, the Company’s consolidated financial statements for that reporting period could be materially adversely affected. Apple Inc. v. Samsung Electronics Co., Ltd., et al. On August 24, 2012, a jury returned a verdict awarding the Company $1.05 billion in its lawsuit against Samsung Electronics Co., Ltd. and affiliated parties in the United States District Court, Northern District of California, San Jose Division. On March 6, 2014, the District Court entered final judgment in favor of the Company in the amount of approximately $930 million . On May 18, 2015, the U.S. Court of Appeals for the Federal Circuit affirmed in part, and reversed in part, the decision of the District Court. As a result, the Court of Appeals ordered entry of final judgment on damages in the amount of approximately $548 million , with the District Court to determine supplemental damages and interest, as well as damages owed for products subject to the reversal in part. Samsung paid $548 million to the Company in December 2015, which was included in net sales in the Condensed Consolidated Statement of Operations. Because the case remains subject to further proceedings, the Company has not recognized any further amounts in its results of operations. On October 11, 2016, the United States Supreme Court heard arguments in Samsung’s request for appeal related to the $548 million in damages.

Segment Information and Geograp

Segment Information and Geographic Data	12 Months Ended
	Sep. 24, 2016
Segment Reporting [Abstract]
Segment Information and Geographic Data	Segment Information and Geographic Data The Company reports segment information based on the “management” approach. The management approach designates the internal reporting used by management for making decisions and assessing performance as the source of the Company’s reportable operating segments. The Company manages its business primarily on a geographic basis. The Company’s reportable operating segments consist of the Americas, Europe, Greater China, Japan and Rest of Asia Pacific. The Americas segment includes both North and South America. The Europe segment includes European countries, as well as India, the Middle East and Africa. The Greater China segment includes China, Hong Kong and Taiwan. The Rest of Asia Pacific segment includes Australia and those Asian countries not included in the Company’s other reportable operating segments. Although the reportable operating segments provide similar hardware and software products and similar services, each one is managed separately to better align with the location of the Company’s customers and distribution partners and the unique market dynamics of each geographic region. The accounting policies of the various segments are the same as those described in Note 1, “Summary of Significant Accounting Policies.” The Company evaluates the performance of its reportable operating segments based on net sales and operating income. Net sales for geographic segments are generally based on the location of customers and sales through the Company’s retail stores located in those geographic locations. Operating income for each segment includes net sales to third parties, related cost of sales and operating expenses directly attributable to the segment. Advertising expenses are generally included in the geographic segment in which the expenditures are incurred. Operating income for each segment excludes other income and expense and certain expenses managed outside the reportable operating segments. Costs excluded from segment operating income include various corporate expenses such as R&D, corporate marketing expenses, certain share-based compensation expenses, income taxes, various nonrecurring charges and other separately managed general and administrative costs. The Company does not include intercompany transfers between segments for management reporting purposes. The following table shows information by reportable operating segment for 2016 , 2015 and 2014 (in millions): 2016 2015 2014 Americas: Net sales $ 86,613 $ 93,864 $ 80,095 Operating income $ 28,172 $ 31,186 $ 26,158 Europe: Net sales $ 49,952 $ 50,337 $ 44,285 Operating income $ 15,348 $ 16,527 $ 14,434 Greater China: Net sales $ 48,492 $ 58,715 $ 31,853 Operating income $ 18,835 $ 23,002 $ 11,039 Japan: Net sales $ 16,928 $ 15,706 $ 15,314 Operating income $ 7,165 $ 7,617 $ 6,904 Rest of Asia Pacific: Net sales $ 13,654 $ 15,093 $ 11,248 Operating income $ 4,781 $ 5,518 $ 3,674 A reconciliation of the Company’s segment operating income to the Consolidated Statements of Operations for 2016 , 2015 and 2014 is as follows (in millions): 2016 2015 2014 Segment operating income $ 74,301 $ 83,850 $ 62,209 Research and development expense (10,045 ) (8,067 ) (6,041 ) Other corporate expenses, net (4,232 ) (4,553 ) (3,665 ) Total operating income $ 60,024 $ 71,230 $ 52,503 The U.S. and China were the only countries that accounted for more than 10% of the Company’s net sales in 2016, 2015 and 2014 . There was no single customer that accounted for more than 10% of net sales in 2016, 2015 or 2014 . Net sales for 2016 , 2015 and 2014 and long-lived assets as of September 24, 2016 and September 26, 2015 are as follows (in millions): 2016 2015 2014 Net sales: U.S. $ 75,667 $ 81,732 $ 68,909 China (1) 46,349 56,547 30,638 Other countries 93,623 95,436 83,248 Total net sales $ 215,639 $ 233,715 $ 182,795 2016 2015 Long-lived assets: U.S. $ 16,364 $ 12,022 China (1) 7,807 8,722 Other countries 2,839 3,040 Total long-lived assets $ 27,010 $ 23,784 (1) China includes Hong Kong. Long-lived assets located in China consist primarily of product tooling and manufacturing process equipment and assets related to retail stores and related infrastructure. Net sales by product for 2016 , 2015 and 2014 are as follows (in millions): 2016 2015 2014 iPhone (1) $ 136,700 $ 155,041 $ 101,991 iPad (1) 20,628 23,227 30,283 Mac (1) 22,831 25,471 24,079 Services (2) 24,348 19,909 18,063 Other Products (1)(3) 11,132 10,067 8,379 Total net sales $ 215,639 $ 233,715 $ 182,795 (1) Includes deferrals and amortization of related software upgrade rights and non-software services. (2) Includes revenue from iTunes Store, App Store, Mac App Store, TV App Store, iBooks Store, Apple Music, AppleCare, Apple Pay, licensing and other services. (3) Includes sales of Apple TV, Apple Watch, Beats products, iPod and Apple-branded and third-party accessories.

Selected Quarterly Financial In

Selected Quarterly Financial Information (Unaudited)	12 Months Ended
	Sep. 24, 2016
Quarterly Financial Information Disclosure [Abstract]
Selected Quarterly Financial Information (Unaudited)	Selected Quarterly Financial Information (Unaudited) The following tables show a summary of the Company’s quarterly financial information for each of the four quarters of 2016 and 2015 (in millions, except per share amounts): Fourth Quarter Third Quarter Second Quarter First Quarter 2016: Net sales $ 46,852 $ 42,358 $ 50,557 $ 75,872 Gross margin $ 17,813 $ 16,106 $ 19,921 $ 30,423 Net income $ 9,014 $ 7,796 $ 10,516 $ 18,361 Earnings per share (1) : Basic $ 1.68 $ 1.43 $ 1.91 $ 3.30 Diluted $ 1.67 $ 1.42 $ 1.90 $ 3.28 Fourth Quarter Third Quarter Second Quarter First Quarter 2015: Net sales $ 51,501 $ 49,605 $ 58,010 $ 74,599 Gross margin $ 20,548 $ 19,681 $ 23,656 $ 29,741 Net income $ 11,124 $ 10,677 $ 13,569 $ 18,024 Earnings per share (1) : Basic $ 1.97 $ 1.86 $ 2.34 $ 3.08 Diluted $ 1.96 $ 1.85 $ 2.33 $ 3.06 (1) Basic and diluted earnings per share are computed independently for each of the quarters presented. Therefore, the sum of quarterly basic and diluted per share information may not equal annual basic and diluted earnings per share.

Summary of Significant Accoun21

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Sep. 24, 2016
Accounting Policies [Abstract]
Basis of Presentation and Preparation	Basis of Presentation and Preparation The accompanying consolidated financial statements include the accounts of the Company. Intercompany accounts and transactions have been eliminated. In the opinion of the Company’s management, the consolidated financial statements reflect all adjustments, which are normal and recurring in nature, necessary for fair financial statement presentation. The preparation of these consolidated financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in these consolidated financial statements and accompanying notes. Actual results could differ materially from those estimates. Certain prior period amounts in the consolidated financial statements have been reclassified to conform to the current period’s presentation.
Fiscal Period	The Company’s fiscal year is the 52 or 53 -week period that ends on the last Saturday of September. The Company’s fiscal years 2016 , 2015 and 2014 ended on September 24, 2016 , September 26, 2015 and September 27, 2014 , respectively, and each spanned 52 weeks. An additional week is included in the first fiscal quarter approximately every five or six years to realign fiscal quarters with calendar quarters, which will next occur in the first quarter of the Company's fiscal year ending September 30, 2017. Unless otherwise stated, references to particular years, quarters, months and periods refer to the Company’s fiscal years ended in September and the associated quarters, months and periods of those fiscal years.
New Accounting Pronouncements	During 2016, the Company adopted an accounting standard that simplified the presentation of deferred income taxes by requiring deferred tax assets and liabilities be classified as noncurrent in a classified statement of financial position. The Company has adopted this accounting standard prospectively; accordingly, the prior period amounts in the Company’s Consolidated Balance Sheets within this Annual Report on Form 10-K were not adjusted to conform to the new accounting standard. The adoption of this accounting standard was not material to the Company’s consolidated financial statements.
Revenue Recognition	Revenue Recognition Net sales consist primarily of revenue from the sale of hardware, software, digital content and applications, accessories, and service and support contracts. The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred, the sales price is fixed or determinable and collection is probable. Product is considered delivered to the customer once it has been shipped and title, risk of loss and rewards of ownership have been transferred. For most of the Company’s product sales, these criteria are met at the time the product is shipped. For online sales to individuals, for some sales to education customers in the U.S., and for certain other sales, the Company defers revenue until the customer receives the product because the Company retains a portion of the risk of loss on these sales during transit. For payment terms in excess of the Company’s standard payment terms, revenue is recognized as payments become due unless the Company has positive evidence that the sales price is fixed or determinable, such as a successful history of collection, without concession, on comparable arrangements. The Company recognizes revenue from the sale of hardware products, software bundled with hardware that is essential to the functionality of the hardware and third-party digital content sold on the iTunes Store in accordance with general revenue recognition accounting guidance. The Company recognizes revenue in accordance with industry specific software accounting guidance for the following types of sales transactions: (i) standalone sales of software products, (ii) sales of software upgrades and (iii) sales of software bundled with hardware not essential to the functionality of the hardware. For the sale of most third-party products, the Company recognizes revenue based on the gross amount billed to customers because the Company establishes its own pricing for such products, retains related inventory risk for physical products, is the primary obligor to the customer and assumes the credit risk for amounts billed to its customers. For third-party applications sold through the App Store and Mac App Store and certain digital content sold through the iTunes Store, the Company does not determine the selling price of the products and is not the primary obligor to the customer. Therefore, the Company accounts for such sales on a net basis by recognizing in net sales only the commission it retains from each sale. The portion of the gross amount billed to customers that is remitted by the Company to third-party app developers and certain digital content owners is not reflected in the Company’s Consolidated Statements of Operations. The Company records deferred revenue when it receives payments in advance of the delivery of products or the performance of services. This includes amounts that have been deferred for unspecified and specified software upgrade rights and non-software services that are attached to hardware and software products. The Company sells gift cards redeemable at its retail and online stores, and also sells gift cards redeemable on iTunes Store, App Store, Mac App Store, TV App Store and iBooks Store for the purchase of digital content and software. The Company records deferred revenue upon the sale of the card, which is relieved upon redemption of the card by the customer. Revenue from AppleCare service and support contracts is deferred and recognized over the service coverage periods. AppleCare service and support contracts typically include extended phone support, repair services, web-based support resources and diagnostic tools offered under the Company’s standard limited warranty. The Company records reductions to revenue for estimated commitments related to price protection and other customer incentive programs. For transactions involving price protection, the Company recognizes revenue net of the estimated amount to be refunded. For the Company’s other customer incentive programs, the estimated cost of these programs is recognized at the later of the date at which the Company has sold the product or the date at which the program is offered. The Company also records reductions to revenue for expected future product returns based on the Company’s historical experience. Revenue is recorded net of taxes collected from customers that are remitted to governmental authorities, with the collected taxes recorded as current liabilities until remitted to the relevant government authority. Revenue Recognition for Arrangements with Multiple Deliverables For multi-element arrangements that include hardware products containing software essential to the hardware product’s functionality, undelivered software elements that relate to the hardware product’s essential software, and undelivered non-software services, the Company allocates revenue to all deliverables based on their relative selling prices. In such circumstances, the Company uses a hierarchy to determine the selling price to be used for allocating revenue to deliverables: (i) vendor-specific objective evidence of fair value (“VSOE”), (ii) third-party evidence of selling price (“TPE”) and (iii) best estimate of selling price (“ESP”). VSOE generally exists only when the Company sells the deliverable separately and is the price actually charged by the Company for that deliverable. ESPs reflect the Company’s best estimates of what the selling prices of elements would be if they were sold regularly on a stand-alone basis. For multi-element arrangements accounted for in accordance with industry specific software accounting guidance, the Company allocates revenue to all deliverables based on the VSOE of each element, and if VSOE does not exist revenue is recognized when elements lacking VSOE are delivered. For sales of qualifying versions of iPhone, iPad, iPod touch, Mac, Apple Watch and Apple TV, the Company has indicated it may from time to time provide future unspecified software upgrades to the device’s essential software and/or non-software services free of charge. The Company has identified up to three deliverables regularly included in arrangements involving the sale of these devices. The first deliverable, which represents the substantial portion of the allocated sales price, is the hardware and software essential to the functionality of the hardware device delivered at the time of sale. The second deliverable is the embedded right included with qualifying devices to receive on a when-and-if-available basis, future unspecified software upgrades relating to the product’s essential software. The third deliverable is the non-software services to be provided to qualifying devices. The Company allocates revenue between these deliverables using the relative selling price method. Because the Company has neither VSOE nor TPE for these deliverables, the allocation of revenue is based on the Company’s ESPs. Revenue allocated to the delivered hardware and the related essential software is recognized at the time of sale provided the other conditions for revenue recognition have been met. Revenue allocated to the embedded unspecified software upgrade rights and the non-software services is deferred and recognized on a straight-line basis over the estimated period the software upgrades and non-software services are expected to be provided. Cost of sales related to delivered hardware and related essential software, including estimated warranty costs, are recognized at the time of sale. Costs incurred to provide non-software services are recognized as cost of sales as incurred, and engineering and sales and marketing costs are recognized as operating expenses as incurred. The Company’s process for determining its ESP for deliverables without VSOE or TPE considers multiple factors that may vary depending upon the unique facts and circumstances related to each deliverable including, where applicable, prices charged by the Company and market trends in the pricing for similar offerings, product specific business objectives, length of time a particular version of a device has been available, estimated cost to provide the non-software services and the relative ESP of the upgrade rights and non-software services as compared to the total selling price of the product.
Shipping Costs	Shipping Costs Amounts billed to customers related to shipping and handling are classified as revenue, and the Company’s shipping and handling costs are classified as cost of sales.
Warranty Costs	Warranty Costs The Company generally provides for the estimated cost of hardware and software warranties in the period the related revenue is recognized. The Company assesses the adequacy of its accrued warranty liabilities and adjusts the amounts as necessary based on actual experience and changes in future estimates.
Software Development Costs	Software Development Costs Research and development (“R&D”) costs are expensed as incurred. Development costs of computer software to be sold, leased, or otherwise marketed are subject to capitalization beginning when a product’s technological feasibility has been established and ending when a product is available for general release to customers. In most instances, the Company’s products are released soon after technological feasibility has been established and as a result software development costs were expensed as incurred.
Advertising Costs	Advertising Costs Advertising costs are expensed as incurred and included in selling, general and administrative expenses.
Share-based Compensation	Share-based Compensation The Company recognizes expense related to share-based payment transactions in which it receives employee services in exchange for (a) equity instruments of the Company or (b) liabilities that are based on the fair value of the Company’s equity instruments or that may be settled by the issuance of such equity instruments. Share-based compensation cost for restricted stock and restricted stock units (“RSUs”) is measured based on the closing fair market value of the Company’s common stock on the date of grant. The Company recognizes share-based compensation cost over the award’s requisite service period on a straight-line basis for time-based RSUs and on a graded basis for RSUs that are contingent on the achievement of performance conditions. The Company recognizes a benefit from share-based compensation in the Consolidated Statements of Shareholders’ Equity if an excess tax benefit is realized. In addition, the Company recognizes the indirect effects of share-based compensation on R&D tax credits, foreign tax credits and domestic manufacturing deductions in the Consolidated Statements of Operations. Further information regarding share-based compensation can be found in Note 9, “Benefit Plans.”
Income Taxes	Income Taxes The provision for income taxes is computed using the asset and liability method, under which deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities and for operating losses and tax credit carryforwards. Deferred tax assets and liabilities are measured using the currently enacted tax rates that apply to taxable income in effect for the years in which those tax assets and liabilities are expected to be realized or settled. The Company records a valuation allowance to reduce deferred tax assets to the amount that is believed more likely than not to be realized. The Company recognizes the tax benefit from an uncertain tax position only if it is more likely than not the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such positions are then measured based on the largest benefit that has a greater than 50% likelihood of being realized upon settlement. See Note 5, “Income Taxes” for additional information.
Earnings Per Share	Potentially dilutive securities whose effect would have been antidilutive are excluded from the computation of diluted earnings per share. Earnings Per Share Basic earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing income available to common shareholders by the weighted-average number of shares of common stock outstanding during the period increased to include the number of additional shares of common stock that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstanding stock options, shares to be purchased by employees under the Company’s employee stock purchase plan, unvested restricted stock and unvested RSUs. 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 the fair market value of the Company’s common stock can result in a greater dilutive effect from potentially dilutive securities.
Cash Equivalents and Marketable Securities	Cash Equivalents and Marketable Securities All highly liquid investments with maturities of three months or less at the date of purchase are classified as cash equivalents. The Company’s marketable debt and equity securities have been classified and accounted for as available-for-sale. Management determines the appropriate classification of its investments at the time of purchase and reevaluates the classifications at each balance sheet date. The Company classifies its marketable debt securities as either short-term or long-term based on each instrument’s underlying contractual maturity date. Marketable debt securities with maturities of 12 months or less are classified as short-term and marketable debt securities with maturities greater than 12 months are classified as long-term. Marketable equity securities, including mutual funds, are classified as either short-term or long-term based on the nature of each security and its availability for use in current operations. The Company’s marketable debt and equity securities are carried at fair value, with unrealized gains and losses, net of taxes, reported as a component of accumulated other comprehensive income (“AOCI”) in shareholders’ equity, with the exception of unrealized losses believed to be other-than-temporary which are reported in earnings in the current period. The cost of securities sold is based upon the specific identification method.
Derivative Financial Instruments	Derivative Financial Instruments The Company accounts for its derivative instruments as either assets or liabilities and carries them at fair value. For derivative instruments that hedge the exposure to variability in expected future cash flows that are designated as cash flow hedges, the effective portion of the gain or loss on the derivative instrument is reported as a component of AOCI in shareholders’ equity and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. The ineffective portion of the gain or loss on the derivative instrument, if any, is recognized in earnings in the current period. To receive hedge accounting treatment, cash flow hedges must be highly effective in offsetting changes to expected future cash flows on hedged transactions. For options designated as cash flow hedges, changes in the time value are excluded from the assessment of hedge effectiveness and are recognized in earnings. For derivative instruments that hedge the exposure to changes in the fair value of an asset or a liability and that are designated as fair value hedges, both the net gain or loss on the derivative instrument as well as the offsetting gain or loss on the hedged item are recognized in earnings in the current period. For derivative instruments and foreign currency debt that hedge the exposure to changes in foreign currency exchange rates used for translation of the net investment in a foreign operation and that are designated as a net investment hedge, the net gain or loss on the effective portion of the derivative instrument is reported in the same manner as a foreign currency translation adjustment. For forward exchange contracts designated as net investment hedges, the Company excludes changes in fair value relating to changes in the forward carry component from its definition of effectiveness. Accordingly, any gains or losses related to this forward carry component are recognized in earnings in the current period. Derivatives that do not qualify as hedges are adjusted to fair value through earnings in the current period. Derivative Financial Instruments The Company may use derivatives to partially offset its business exposure to foreign currency and interest rate risk on expected future cash flows, on net investments in certain foreign subsidiaries and on certain existing assets and liabilities. However, the Company may choose not to hedge certain exposures for a variety of reasons including, but not limited to, accounting considerations and the prohibitive economic cost of hedging particular exposures. There can be no assurance the hedges will offset more than a portion of the financial impact resulting from movements in foreign currency exchange or interest rates. To help protect gross margins from fluctuations in foreign currency exchange rates, certain of the Company’s subsidiaries whose functional currency is the U.S. dollar may hedge a portion of forecasted foreign currency revenue, and subsidiaries whose functional currency is not the U.S. dollar and who sell in local currencies may hedge a portion of forecasted inventory purchases not denominated in the subsidiaries’ functional currencies. The Company may enter into forward contracts, option contracts or other instruments to manage this risk and may designate these instruments as cash flow hedges. The Company typically hedges portions of its forecasted foreign currency exposure associated with revenue and inventory purchases, typically for up to 12 months . To help protect the net investment in a foreign operation from adverse changes in foreign currency exchange rates, the Company may enter into foreign currency forward and option contracts to offset the changes in the carrying amounts of these investments due to fluctuations in foreign currency exchange rates. In addition, the Company may use non-derivative financial instruments, such as its foreign currency-denominated debt, as economic hedges of its net investments in certain foreign subsidiaries. In both of these cases, the Company designates these instruments as net investment hedges. The Company may also enter into non-designated foreign currency contracts to partially offset the foreign currency exchange gains and losses generated by the re-measurement of certain assets and liabilities denominated in non-functional currencies. The Company may enter into interest rate swaps, options, or other instruments to manage interest rate risk. These instruments may offset a portion of changes in income or expense, or changes in fair value of the Company’s term debt or investments. The Company designates these instruments as either cash flow or fair value hedges. The Company’s hedged interest rate transactions as of September 24, 2016 are expected to be recognized within 10 years . Cash Flow Hedges The effective portions of cash flow hedges are recorded in AOCI until the hedged item is recognized in earnings. Deferred gains and losses associated with cash flow hedges of foreign currency revenue are recognized as a component of net sales in the same period as the related revenue is recognized, and deferred gains and losses related to cash flow hedges of inventory purchases are recognized as a component of cost of sales in the same period as the related costs are recognized. Deferred gains and losses associated with cash flow hedges of interest income or expense are recognized in other income/(expense), net in the same period as the related income or expense is recognized. The ineffective portions and amounts excluded from the effectiveness testing of cash flow hedges are recognized in other income/(expense), net. Derivative instruments designated as cash flow hedges must be de-designated as hedges when it is probable the forecasted hedged transaction will not occur in the initially identified time period or within a subsequent two-month time period. Deferred gains and losses in AOCI associated with such derivative instruments are reclassified immediately into other income/(expense), net. Any subsequent changes in fair value of such derivative instruments are reflected in other income/(expense), net unless they are re-designated as hedges of other transactions. Net Investment Hedges The effective portions of net investment hedges are recorded in other comprehensive income (“OCI”) as a part of the cumulative translation adjustment. The ineffective portions and amounts excluded from the effectiveness testing of net investment hedges are recognized in other income/(expense), net. Fair Value Hedges Gains and losses related to changes in fair value hedges are recognized in earnings along with a corresponding loss or gain related to the change in value of the underlying hedged item. Non-Designated Derivatives Derivatives that are not designated as hedging instruments are adjusted to fair value through earnings in the financial statement line item to which the derivative relates. The Company records all derivatives in the Consolidated Balance Sheets at fair value. The Company’s accounting treatment for these derivative instruments is based on its hedge designation.
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts The Company records its allowance for doubtful accounts based upon its assessment of various factors, including historical experience, age of the accounts receivable balances, credit quality of the Company’s customers, current economic conditions and other factors that may affect the customers’ abilities to pay.
Inventories	Inventories Inventories are stated at the lower of cost, computed using the first-in, first-out method and net realizable value. Any adjustments to reduce the cost of inventories to their net realizable value are recognized in earnings in the current period. As of September 24, 2016 and September 26, 2015 , the Company’s inventories consist primarily of finished goods.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are stated at cost. Depreciation is computed by use of the straight-line method over the estimated useful lives of the assets, which for buildings is the lesser of 30 years or the remaining life of the underlying building; between one to five years for machinery and equipment, including product tooling and manufacturing process equipment; and the shorter of lease terms or useful life for leasehold improvements. The Company capitalizes eligible costs to acquire or develop internal-use software that are incurred subsequent to the preliminary project stage. Capitalized costs related to internal-use software are amortized using the straight-line method over the estimated useful lives of the assets, which range from three to five years .
Long-Lived Assets Including Goodwill and Other Acquired Intangible Assets	Long-Lived Assets Including Goodwill and Other Acquired Intangible Assets The Company reviews property, plant and equipment, inventory component prepayments and identifiable intangibles, excluding goodwill and intangible assets with indefinite useful lives, for impairment. Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. Recoverability of these assets is measured by comparison of their carrying amounts to future undiscounted cash flows the assets are expected to generate. If property, plant and equipment, inventory component prepayments and certain identifiable intangibles are considered to be impaired, the impairment to be recognized equals the amount by which the carrying value of the assets exceeds its fair value. The Company does not amortize goodwill and intangible assets with indefinite useful lives, rather such assets are required to be tested for impairment at least annually or sooner whenever events or changes in circumstances indicate that the assets may be impaired. The Company performs its goodwill and intangible asset impairment tests in the fourth quarter of each year. The Company did not recognize any impairment charges related to goodwill or indefinite lived intangible assets during 2016 , 2015 and 2014 . For purposes of testing goodwill for impairment, the Company established reporting units based on its current reporting structure. Goodwill has been allocated to these reporting units to the extent it relates to each reporting unit. In 2016 and 2015 , the Company’s goodwill was primarily allocated to the Americas and Europe reporting units. The Company amortizes its intangible assets with definite useful lives over their estimated useful lives and reviews these assets for impairment. The Company typically amortizes its acquired intangible assets with definite useful lives over periods from three to seven years .
Fair Value Measurements	Fair Value Measurements The Company applies fair value accounting for all financial assets and liabilities and non-financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis. The Company defines fair value 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, which are required to be recorded at fair value, the Company considers the principal or most advantageous market in which the Company would transact and the market-based risk measurements or assumptions that market participants would use to price the asset or liability, such as risks inherent in valuation techniques, transfer restrictions and credit risk. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement: Level 1 – Quoted prices in active markets for identical assets or liabilities. Level 2 – Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 – Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing the asset or liability. The Company’s valuation techniques used to measure the fair value of money market funds and certain marketable equity securities were derived from quoted prices in active markets for identical assets or liabilities. The valuation techniques used to measure the fair value of the Company’s debt instruments and all other financial instruments, all of which have counterparties with high credit ratings, were valued based on quoted market prices or model-driven valuations using significant inputs derived from or corroborated by observable market data. In accordance with the fair value accounting requirements, companies may choose to measure eligible financial instruments and certain other items at fair value. The Company has not elected the fair value option for any eligible financial instruments.
Foreign Currency Translation and Remeasurement	Foreign Currency Translation and Remeasurement The Company translates the assets and liabilities of its non-U.S. dollar functional currency subsidiaries into U.S. dollars using exchange rates in effect at the end of each period. Revenue and expenses for these subsidiaries are translated using rates that approximate those in effect during the period. Gains and losses from these translations are recognized in foreign currency translation included in AOCI in shareholders’ equity. The Company’s subsidiaries that use the U.S. dollar as their functional currency remeasure monetary assets and liabilities at exchange rates in effect at the end of each period, and inventories, property and nonmonetary assets and liabilities at historical rates.

Summary of Significant Accoun22

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Sep. 24, 2016
Accounting Policies [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table shows the computation of basic and diluted earnings per share for 2016 , 2015 and 2014 (net income in millions and shares in thousands): 2016 2015 2014 Numerator: Net income $ 45,687 $ 53,394 $ 39,510 Denominator: Weighted-average shares outstanding 5,470,820 5,753,421 6,085,572 Effect of dilutive securities 29,461 39,648 37,091 Weighted-average diluted shares 5,500,281 5,793,069 6,122,663 Basic earnings per share $ 8.35 $ 9.28 $ 6.49 Diluted earnings per share $ 8.31 $ 9.22 $ 6.45

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Sep. 24, 2016
Investments, All Other Investments [Abstract]
Cash and Available-for-Sale Securities' Adjusted Cost, Gross Unrealized Gains, Gross Unrealized Losses and Fair Value Recorded as Cash and Cash Equivalents or Short-Term or Long-Term Marketable Securities	The following tables show the Company’s cash and available-for-sale securities’ adjusted cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category recorded as cash and cash equivalents or short- or long-term marketable securities as of September 24, 2016 and September 26, 2015 (in millions): 2016 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Cash and Cash Equivalents Short-Term Marketable Securities Long-Term Marketable Securities Cash $ 8,601 $ — $ — $ 8,601 $ 8,601 $ — $ — Level 1: Money market funds 3,666 — — 3,666 3,666 — — Mutual funds 1,407 — (146 ) 1,261 — 1,261 — Subtotal 5,073 — (146 ) 4,927 3,666 1,261 — Level 2: U.S. Treasury securities 41,697 319 (4 ) 42,012 1,527 13,492 26,993 U.S. agency securities 7,543 16 — 7,559 2,762 2,441 2,356 Non-U.S. government securities 7,609 259 (27 ) 7,841 110 818 6,913 Certificates of deposit and time deposits 6,598 — — 6,598 1,108 3,897 1,593 Commercial paper 7,433 — — 7,433 2,468 4,965 — Corporate securities 131,166 1,409 (206 ) 132,369 242 19,599 112,528 Municipal securities 956 5 — 961 — 167 794 Mortgage- and asset-backed securities 19,134 178 (28 ) 19,284 — 31 19,253 Subtotal 222,136 2,186 (265 ) 224,057 8,217 45,410 170,430 Total $ 235,810 $ 2,186 $ (411 ) $ 237,585 $ 20,484 $ 46,671 $ 170,430 2015 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Cash and Cash Equivalents Short-Term Marketable Securities Long-Term Marketable Securities Cash $ 11,389 $ — $ — $ 11,389 $ 11,389 $ — $ — Level 1: Money market funds 1,798 — — 1,798 1,798 — — Mutual funds 1,772 — (144 ) 1,628 — 1,628 — Subtotal 3,570 — (144 ) 3,426 1,798 1,628 — Level 2: U.S. Treasury securities 34,902 181 (1 ) 35,082 — 3,498 31,584 U.S. agency securities 5,864 14 — 5,878 841 767 4,270 Non-U.S. government securities 6,356 45 (167 ) 6,234 43 135 6,056 Certificates of deposit and time deposits 4,347 — — 4,347 2,065 1,405 877 Commercial paper 6,016 — — 6,016 4,981 1,035 — Corporate securities 116,908 242 (985 ) 116,165 3 11,948 104,214 Municipal securities 947 5 — 952 — 48 904 Mortgage- and asset-backed securities 16,121 87 (31 ) 16,177 — 17 16,160 Subtotal 191,461 574 (1,184 ) 190,851 7,933 18,853 164,065 Total $ 206,420 $ 574 $ (1,328 ) $ 205,666 $ 21,120 $ 20,481 $ 164,065
Cash and Available-for-Sale Securities' Adjusted Cost, Gross Unrealized Gains, Gross Unrealized Losses and Fair Value Recorded as Cash and Cash Equivalents or Short-Term or Long-Term Marketable Securities	The following tables show the Company’s cash and available-for-sale securities’ adjusted cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category recorded as cash and cash equivalents or short- or long-term marketable securities as of September 24, 2016 and September 26, 2015 (in millions): 2016 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Cash and Cash Equivalents Short-Term Marketable Securities Long-Term Marketable Securities Cash $ 8,601 $ — $ — $ 8,601 $ 8,601 $ — $ — Level 1: Money market funds 3,666 — — 3,666 3,666 — — Mutual funds 1,407 — (146 ) 1,261 — 1,261 — Subtotal 5,073 — (146 ) 4,927 3,666 1,261 — Level 2: U.S. Treasury securities 41,697 319 (4 ) 42,012 1,527 13,492 26,993 U.S. agency securities 7,543 16 — 7,559 2,762 2,441 2,356 Non-U.S. government securities 7,609 259 (27 ) 7,841 110 818 6,913 Certificates of deposit and time deposits 6,598 — — 6,598 1,108 3,897 1,593 Commercial paper 7,433 — — 7,433 2,468 4,965 — Corporate securities 131,166 1,409 (206 ) 132,369 242 19,599 112,528 Municipal securities 956 5 — 961 — 167 794 Mortgage- and asset-backed securities 19,134 178 (28 ) 19,284 — 31 19,253 Subtotal 222,136 2,186 (265 ) 224,057 8,217 45,410 170,430 Total $ 235,810 $ 2,186 $ (411 ) $ 237,585 $ 20,484 $ 46,671 $ 170,430 2015 Adjusted Cost Unrealized Gains Unrealized Losses Fair Value Cash and Cash Equivalents Short-Term Marketable Securities Long-Term Marketable Securities Cash $ 11,389 $ — $ — $ 11,389 $ 11,389 $ — $ — Level 1: Money market funds 1,798 — — 1,798 1,798 — — Mutual funds 1,772 — (144 ) 1,628 — 1,628 — Subtotal 3,570 — (144 ) 3,426 1,798 1,628 — Level 2: U.S. Treasury securities 34,902 181 (1 ) 35,082 — 3,498 31,584 U.S. agency securities 5,864 14 — 5,878 841 767 4,270 Non-U.S. government securities 6,356 45 (167 ) 6,234 43 135 6,056 Certificates of deposit and time deposits 4,347 — — 4,347 2,065 1,405 877 Commercial paper 6,016 — — 6,016 4,981 1,035 — Corporate securities 116,908 242 (985 ) 116,165 3 11,948 104,214 Municipal securities 947 5 — 952 — 48 904 Mortgage- and asset-backed securities 16,121 87 (31 ) 16,177 — 17 16,160 Subtotal 191,461 574 (1,184 ) 190,851 7,933 18,853 164,065 Total $ 206,420 $ 574 $ (1,328 ) $ 205,666 $ 21,120 $ 20,481 $ 164,065
Derivative Instruments at Gross Fair Value	The following tables show the Company’s derivative instruments at gross fair value as of September 24, 2016 and September 26, 2015 (in millions): 2016 Fair Value of Derivatives Designated as Hedge Instruments Fair Value of Derivatives Not Designated as Hedge Instruments Total Fair Value Derivative assets (1) : Foreign exchange contracts $ 518 $ 153 $ 671 Interest rate contracts $ 728 $ — $ 728 Derivative liabilities (2) : Foreign exchange contracts $ 935 $ 134 $ 1,069 Interest rate contracts $ 7 $ — $ 7 2015 Fair Value of Derivatives Designated as Hedge Instruments Fair Value of Derivatives Not Designated as Hedge Instruments Total Fair Value Derivative assets (1) : Foreign exchange contracts $ 1,442 $ 109 $ 1,551 Interest rate contracts $ 394 $ — $ 394 Derivative liabilities (2) : Foreign exchange contracts $ 905 $ 94 $ 999 Interest rate contracts $ 13 $ — $ 13 (1) The fair value of derivative assets is measured using Level 2 fair value inputs and is recorded as other current assets in the Consolidated Balance Sheets. (2) The fair value of derivative liabilities is measured using Level 2 fair value inputs and is recorded as accrued expenses in the Consolidated Balance Sheets.
Pre-Tax Gains and Losses of Derivative and Non-Derivative Instruments Designated as Cash Flow, Net Investment and Fair Value Hedges	The following table shows the pre-tax gains and losses of the Company’s derivative and non-derivative instruments designated as cash flow, net investment and fair value hedges on OCI and the Consolidated Statements of Operations for 2016 , 2015 and 2014 (in millions): 2016 2015 2014 Gains/(Losses) recognized in OCI – effective portion: Cash flow hedges: Foreign exchange contracts $ 109 $ 3,592 $ 1,750 Interest rate contracts (57 ) (111 ) (15 ) Total $ 52 $ 3,481 $ 1,735 Net investment hedges: Foreign exchange contracts $ — $ 167 $ 53 Foreign currency debt (258 ) (71 ) — Total $ (258 ) $ 96 $ 53 Gains/(Losses) reclassified from AOCI into net income – effective portion: Cash flow hedges: Foreign exchange contracts $ 885 $ 4,092 $ (154 ) Interest rate contracts (11 ) (17 ) (16 ) Total $ 874 $ 4,075 $ (170 ) Gains/(Losses) on derivative instruments: Fair value hedges: Interest rate contracts $ 341 $ 337 $ 39 Gains/(Losses) related to hedged items: Fair value hedges: Interest rate contracts $ (341 ) $ (337 ) $ (39 )
Notional Amounts of Outstanding Derivative Instruments and Credit Risk Amounts Associated with Outstanding or Unsettled Derivative Instruments	The following table shows the notional amounts of the Company’s outstanding derivative instruments and credit risk amounts associated with outstanding or unsettled derivative instruments as of September 24, 2016 and September 26, 2015 (in millions): 2016 2015 Notional Amount Credit Risk Amount Notional Amount Credit Risk Amount Instruments designated as accounting hedges: Foreign exchange contracts $ 44,678 $ 518 $ 70,054 $ 1,385 Interest rate contracts $ 24,500 $ 728 $ 18,750 $ 394 Instruments not designated as accounting hedges: Foreign exchange contracts $ 54,305 $ 153 $ 49,190 $ 109

Consolidated Financial Statem24

Consolidated Financial Statement Details (Tables)	12 Months Ended
	Sep. 24, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Property, Plant and Equipment, Net	Property, Plant and Equipment, Net 2016 2015 Land and buildings $ 10,185 $ 6,956 Machinery, equipment and internal-use software 44,543 37,038 Leasehold improvements 6,517 5,263 Gross property, plant and equipment 61,245 49,257 Accumulated depreciation and amortization (34,235 ) (26,786 ) Total property, plant and equipment, net $ 27,010 $ 22,471
Other Non-Current Liabilities	Other Non-Current Liabilities 2016 2015 Deferred tax liabilities $ 26,019 $ 24,062 Other non-current liabilities 10,055 9,365 Total other non-current liabilities $ 36,074 $ 33,427
Other Income/(Expense), Net	Other Income/(Expense), Net The following table shows the detail of other income/(expense), net for 2016 , 2015 and 2014 (in millions): 2016 2015 2014 Interest and dividend income $ 3,999 $ 2,921 $ 1,795 Interest expense (1,456 ) (733 ) (384 ) Other expense, net (1,195 ) (903 ) (431 ) Total other income/(expense), net $ 1,348 $ 1,285 $ 980

Acquired Intangible Assets (Tab

Acquired Intangible Assets (Tables)	12 Months Ended
	Sep. 24, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Components of Gross and Net Intangible Asset Balances	The following table summarizes the components of gross and net acquired intangible asset balances as of September 24, 2016 and September 26, 2015 (in millions): 2016 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Definite-lived and amortizable acquired intangible assets $ 8,912 $ (5,806 ) $ 3,106 $ 8,125 $ (4,332 ) $ 3,793 Indefinite-lived and non-amortizable acquired intangible assets 100 — 100 100 — 100 Total acquired intangible assets $ 9,012 $ (5,806 ) $ 3,206 $ 8,225 $ (4,332 ) $ 3,893
Components of Gross and Net Intangible Asset Balances	The following table summarizes the components of gross and net acquired intangible asset balances as of September 24, 2016 and September 26, 2015 (in millions): 2016 2015 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Definite-lived and amortizable acquired intangible assets $ 8,912 $ (5,806 ) $ 3,106 $ 8,125 $ (4,332 ) $ 3,793 Indefinite-lived and non-amortizable acquired intangible assets 100 — 100 100 — 100 Total acquired intangible assets $ 9,012 $ (5,806 ) $ 3,206 $ 8,225 $ (4,332 ) $ 3,893
Expected Annual Amortization Expense Related to Acquired Intangible Assets	The expected annual amortization expense related to acquired intangible assets as of September 24, 2016 , is as follows (in millions): 2017 $ 1,197 2018 902 2019 449 2020 255 2021 175 Thereafter 128 Total $ 3,106

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Sep. 24, 2016
Income Tax Disclosure [Abstract]
Provision for Income Taxes	The provision for income taxes for 2016 , 2015 and 2014 , consisted of the following (in millions): 2016 2015 2014 Federal: Current $ 7,652 $ 11,730 $ 8,624 Deferred 5,043 3,408 3,183 12,695 15,138 11,807 State: Current 990 1,265 855 Deferred (138 ) (220 ) (178 ) 852 1,045 677 Foreign: Current 2,105 4,744 2,147 Deferred 33 (1,806 ) (658 ) 2,138 2,938 1,489 Provision for income taxes $ 15,685 $ 19,121 $ 13,973
Reconciliation of Provision for Income Taxes	A reconciliation of the provision for income taxes, with the amount computed by applying the statutory federal income tax rate ( 35% in 2016 , 2015 and 2014 ) to income before provision for income taxes for 2016 , 2015 and 2014 , is as follows (dollars in millions): 2016 2015 2014 Computed expected tax $ 21,480 $ 25,380 $ 18,719 State taxes, net of federal effect 553 680 469 Indefinitely invested earnings of foreign subsidiaries (5,582 ) (6,470 ) (4,744 ) Domestic production activities deduction (382 ) (426 ) (495 ) Research and development credit, net (371 ) (171 ) (88 ) Other (13 ) 128 112 Provision for income taxes $ 15,685 $ 19,121 $ 13,973 Effective tax rate 25.6 % 26.4 % 26.1 %
Significant Components of Deferred Tax Assets and Liabilities	As of September 24, 2016 and September 26, 2015 , the significant components of the Company’s deferred tax assets and liabilities were (in millions): 2016 2015 Deferred tax assets: Accrued liabilities and other reserves $ 4,135 $ 4,205 Basis of capital assets 2,107 2,238 Deferred revenue 1,717 1,941 Deferred cost sharing 667 667 Share-based compensation 601 575 Unrealized losses — 564 Other 788 721 Total deferred tax assets, net of valuation allowance of $0 10,015 10,911 Deferred tax liabilities: Unremitted earnings of foreign subsidiaries 31,436 26,868 Other 485 303 Total deferred tax liabilities 31,921 27,171 Net deferred tax liabilities $ (21,906 ) $ (16,260 )
Aggregate Changes in Gross Unrecognized Tax Benefits Excluding Interest and Penalties	The aggregate changes in the balance of gross unrecognized tax benefits, which excludes interest and penalties, for 2016 , 2015 and 2014 , is as follows (in millions): 2016 2015 2014 Beginning Balance $ 6,900 $ 4,033 $ 2,714 Increases related to tax positions taken during a prior year 1,121 2,056 1,295 Decreases related to tax positions taken during a prior year (257 ) (345 ) (280 ) Increases related to tax positions taken during the current year 1,578 1,278 882 Decreases related to settlements with taxing authorities (1,618 ) (109 ) (574 ) Decreases related to expiration of statute of limitations — (13 ) (4 ) Ending Balance $ 7,724 $ 6,900 $ 4,033

Debt (Tables)

Debt (Tables)	12 Months Ended
	Sep. 24, 2016
Debt Disclosure [Abstract]
Summary of Cash Flows Associated With Issuance and Maturities of Commercial Paper	The following table provides a summary of cash flows associated with the issuance and maturities of Commercial Paper for 2016 and 2015 (in millions): 2016 2015 Maturities less than 90 days: Proceeds from (repayments of) commercial paper, net $ (869 ) $ 5,293 Maturities greater than 90 days: Proceeds from commercial paper 3,632 3,851 Repayments of commercial paper (3,160 ) (6,953 ) Maturities greater than 90 days, net 472 (3,102 ) Total change in commercial paper, net $ (397 ) $ 2,191
Summary of Term Debt	The following table provides a summary of the Company’s term debt as of September 24, 2016 and September 26, 2015 : Maturities 2016 2015 Amount (in millions) Effective Interest Rate Amount (in millions) Effective Interest Rate 2013 debt issuance of $17.0 billion: Floating-rate notes 2018 $ 2,000 1.10% $ 3,000 0.51% - 1.10% Fixed-rate 1.000% - 3.850% notes 2018 - 2043 12,500 1.08% - 3.91% 14,000 0.51% - 3.91% 2014 debt issuance of $12.0 billion: Floating-rate notes 2017 - 2019 2,000 0.86% - 1.09% 2,000 0.37% - 0.60% Fixed-rate 1.050% - 4.450% notes 2017 - 2044 10,000 0.85% - 4.48% 10,000 0.37% - 4.48% 2015 debt issuances of $27.3 billion: Floating-rate notes 2017 - 2020 1,781 0.87% - 1.87% 1,743 0.36% - 1.87% Fixed-rate 0.350% - 4.375% notes 2017 - 2045 25,144 0.28% - 4.51% 24,958 0.28% - 4.51% Second quarter 2016 debt issuance of $15.5 billion: Floating-rate notes 2019 500 1.64 % — — Floating-rate notes 2021 500 1.95 % — — Fixed-rate 1.300% notes 2018 500 1.32 % — — Fixed-rate 1.700% notes 2019 1,000 1.71 % — — Fixed-rate 2.250% notes 2021 3,000 1.91 % — — Fixed-rate 2.850% notes 2023 1,500 2.58 % — — Fixed-rate 3.250% notes 2026 3,250 2.51 % — — Fixed-rate 4.500% notes 2036 1,250 4.54 % — — Fixed-rate 4.650% notes 2046 4,000 4.58 % — — Third quarter 2016 Australian dollar-denominated debt issuance of A$1.4 billion: Fixed-rate 2.650% notes 2020 493 1.92 % — — Fixed-rate 3.350% notes 2024 342 2.61 % — — Fixed-rate 3.600% notes 2026 247 2.84 % — — Third quarter 2016 debt issuance of $1.4 billion: Fixed-rate 4.150% notes 2046 1,377 4.15 % — — Fourth quarter 2016 debt issuance of $7.0 billion: Floating-rate notes 2019 350 0.91 % — — Fixed-rate 1.100% notes 2019 1,150 1.13 % — — Fixed-rate 1.550% notes 2021 1,250 1.40 % — — Fixed-rate 2.450% notes 2026 2,250 2.15 % — — Fixed-rate 3.850% notes 2046 2,000 3.86 % — — Total term debt 78,384 55,701 Unamortized premium/(discount) and issuance costs, net (174 ) (248 ) Hedge accounting fair value adjustments 717 376 Less: Current portion of long-term debt, net (3,500 ) (2,500 ) Total long-term debt $ 75,427 $ 53,329
Future Principal Payments for Notes	The future principal payments for the Company’s Notes as of September 24, 2016 are as follows (in millions): 2017 $ 3,500 2018 6,500 2019 6,834 2020 6,454 2021 7,750 Thereafter 47,346 Total term debt $ 78,384

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
	Sep. 24, 2016
Equity [Abstract]
Cash Dividends Declared and Paid Per Share	The Company declared and paid cash dividends per share during the periods presented as follows: Dividends Per Share Amount (in millions) 2016: Fourth quarter $ 0.57 $ 3,071 Third quarter 0.57 3,117 Second quarter 0.52 2,879 First quarter 0.52 2,898 Total cash dividends declared and paid $ 2.18 $ 11,965 2015: Fourth quarter $ 0.52 $ 2,950 Third quarter 0.52 2,997 Second quarter 0.47 2,734 First quarter 0.47 2,750 Total cash dividends declared and paid $ 1.98 $ 11,431
Accelerated Share Repurchase Activity and Related Information	The following table shows the Company’s ASR activity and related information during the years ended September 24, 2016 and September 26, 2015 : Purchase Period End Date Number of Shares (in thousands) Average Repurchase Price Per Share ASR Amount (in millions) August 2016 ASR November 2016 22,468 (1) (1) $ 3,000 May 2016 ASR August 2016 60,452 (2) $ 99.25 $ 6,000 November 2015 ASR April 2016 29,122 $ 103.02 $ 3,000 May 2015 ASR July 2015 48,293 $ 124.24 $ 6,000 August 2014 ASR February 2015 81,525 $ 110.40 $ 9,000 January 2014 ASR December 2014 134,247 $ 89.39 $ 12,000 (1) “Number of Shares” represents those shares delivered in the beginning of the purchase period and does not represent the final number of shares to be delivered under the ASR. The total number of shares ultimately delivered, and therefore the average repurchase price paid per share, will be determined at the end of the purchase period based on the volume-weighted average price of the Company’s common stock during that period. The August 2016 ASR purchase period will end in or before November 2016. (2) Includes 48.2 million shares delivered and retired at the beginning of the purchase period, which began in the third quarter of 2016, and 12.3 million shares delivered and retired at the end of the purchase period, which concluded in the fourth quarter of 2016.
Repurchases of Common Shares in Open Market	Additionally, the Company repurchased shares of its common stock in the open market, which were retired upon repurchase, during the periods presented as follows: Number of Shares (in thousands) Average Repurchase Price Per Share Amount (in millions) 2016: Fourth quarter 28,579 $ 104.97 $ 3,000 Third quarter 41,238 $ 97.00 4,000 Second quarter 71,766 $ 97.54 7,000 First quarter 25,984 $ 115.45 3,000 Total open market common stock repurchases 167,567 $ 17,000 2015: Fourth quarter 121,802 $ 115.15 $ 14,026 Third quarter 31,231 $ 128.08 4,000 Second quarter 56,400 $ 124.11 7,000 First quarter 45,704 $ 109.40 5,000 Total open market common stock repurchases 255,137 $ 30,026

Comprehensive Income (Tables)

Comprehensive Income (Tables)	12 Months Ended
	Sep. 24, 2016
Equity [Abstract]
Pre-tax Amounts Reclassified from AOCI into Consolidated Statements of Operations	The following table shows the pre-tax amounts reclassified from AOCI into the Consolidated Statements of Operations, and the associated financial statement line item, for 2016 and 2015 (in millions): Comprehensive Income Components Financial Statement Line Item 2016 2015 Unrealized (gains)/losses on derivative instruments: Foreign exchange contracts Revenue $ (865 ) $ (2,432 ) Cost of sales (130 ) (2,168 ) Other income/(expense), net 111 456 Interest rate contracts Other income/(expense), net 12 17 (872 ) (4,127 ) Unrealized (gains)/losses on marketable securities Other income/(expense), net 87 91 Total amounts reclassified from AOCI $ (785 ) $ (4,036 )
Change in Accumulated Other Comprehensive Income by Component	The following table shows the changes in AOCI by component for 2016 and 2015 (in millions): Cumulative Foreign Currency Translation Unrealized Gains/Losses on Derivative Instruments Unrealized Gains/Losses on Marketable Securities Total Balance at September 27, 2014 $ (242 ) $ 1,364 $ (40 ) $ 1,082 Other comprehensive income/(loss) before reclassifications (612 ) 3,346 (747 ) 1,987 Amounts reclassified from AOCI — (4,127 ) 91 (4,036 ) Tax effect 201 189 232 622 Other comprehensive income/(loss) (411 ) (592 ) (424 ) (1,427 ) Balance at September 26, 2015 (653 ) 772 (464 ) (345 ) Other comprehensive income/(loss) before reclassifications 67 14 2,445 2,526 Amounts reclassified from AOCI — (872 ) 87 (785 ) Tax effect 8 124 (894 ) (762 ) Other comprehensive income/(loss) 75 (734 ) 1,638 979 Balance at September 24, 2016 $ (578 ) $ 38 $ 1,174 $ 634

Benefit Plans (Tables)

Benefit Plans (Tables)	12 Months Ended
	Sep. 24, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Restricted Stock Activity	A summary of the Company’s RSU activity and related information for 2016 , 2015 and 2014 , is as follows: Number of RSUs (in thousands) Weighted-Average Grant Date Fair Value Per Share Aggregate Intrinsic Value (in millions) Balance at September 28, 2013 93,284 $ 62.24 RSUs granted 59,269 $ 74.54 RSUs vested (43,111 ) $ 57.29 RSUs cancelled (5,620 ) $ 68.47 Balance at September 27, 2014 103,822 $ 70.98 RSUs granted 45,587 $ 105.51 RSUs vested (41,684 ) $ 71.32 RSUs cancelled (6,258 ) $ 80.34 Balance at September 26, 2015 101,467 $ 85.77 RSUs granted 49,468 $ 109.28 RSUs vested (46,313 ) $ 84.44 RSUs cancelled (5,533 ) $ 96.48 Balance at September 24, 2016 99,089 $ 97.54 $ 11,168
Summary of Share-Based Compensation Expense	The following table shows a summary of the share-based compensation expense included in the Consolidated Statements of Operations for 2016 , 2015 and 2014 (in millions): 2016 2015 2014 Cost of sales $ 769 $ 575 $ 450 Research and development 1,889 1,536 1,216 Selling, general and administrative 1,552 1,475 1,197 Total share-based compensation expense $ 4,210 $ 3,586 $ 2,863

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Sep. 24, 2016
Commitments and Contingencies Disclosure [Abstract]
Changes in Accrued Warranties and Related Costs	The following table shows changes in the Company’s accrued warranties and related costs for 2016 , 2015 and 2014 (in millions): 2016 2015 2014 Beginning accrued warranty and related costs $ 4,780 $ 4,159 $ 2,967 Cost of warranty claims (4,663 ) (4,401 ) (3,760 ) Accruals for product warranty 3,585 5,022 4,952 Ending accrued warranty and related costs $ 3,702 $ 4,780 $ 4,159
Future Minimum Lease Payments under Noncancelable Operating Leases	Future minimum lease payments under noncancelable operating leases having remaining terms in excess of one year as of September 24, 2016 , are as follows (in millions): 2017 $ 929 2018 919 2019 915 2020 889 2021 836 Thereafter 3,139 Total $ 7,627

Segment Information and Geogr32

Segment Information and Geographic Data (Tables)	12 Months Ended
	Sep. 24, 2016
Segment Reporting [Abstract]
Summary Information by Operating Segment	The following table shows information by reportable operating segment for 2016 , 2015 and 2014 (in millions): 2016 2015 2014 Americas: Net sales $ 86,613 $ 93,864 $ 80,095 Operating income $ 28,172 $ 31,186 $ 26,158 Europe: Net sales $ 49,952 $ 50,337 $ 44,285 Operating income $ 15,348 $ 16,527 $ 14,434 Greater China: Net sales $ 48,492 $ 58,715 $ 31,853 Operating income $ 18,835 $ 23,002 $ 11,039 Japan: Net sales $ 16,928 $ 15,706 $ 15,314 Operating income $ 7,165 $ 7,617 $ 6,904 Rest of Asia Pacific: Net sales $ 13,654 $ 15,093 $ 11,248 Operating income $ 4,781 $ 5,518 $ 3,674
Reconciliation of Segment Operating Income to Consolidated Statements of Operations	A reconciliation of the Company’s segment operating income to the Consolidated Statements of Operations for 2016 , 2015 and 2014 is as follows (in millions): 2016 2015 2014 Segment operating income $ 74,301 $ 83,850 $ 62,209 Research and development expense (10,045 ) (8,067 ) (6,041 ) Other corporate expenses, net (4,232 ) (4,553 ) (3,665 ) Total operating income $ 60,024 $ 71,230 $ 52,503
Net Sales and Long-lived Assets	Net sales for 2016 , 2015 and 2014 and long-lived assets as of September 24, 2016 and September 26, 2015 are as follows (in millions): 2016 2015 2014 Net sales: U.S. $ 75,667 $ 81,732 $ 68,909 China (1) 46,349 56,547 30,638 Other countries 93,623 95,436 83,248 Total net sales $ 215,639 $ 233,715 $ 182,795 2016 2015 Long-lived assets: U.S. $ 16,364 $ 12,022 China (1) 7,807 8,722 Other countries 2,839 3,040 Total long-lived assets $ 27,010 $ 23,784 (1) China includes Hong Kong. Long-lived assets located in China consist primarily of product tooling and manufacturing process equipment and assets related to retail stores and related infrastructure.
Net Sales by Product	Net sales by product for 2016 , 2015 and 2014 are as follows (in millions): 2016 2015 2014 iPhone (1) $ 136,700 $ 155,041 $ 101,991 iPad (1) 20,628 23,227 30,283 Mac (1) 22,831 25,471 24,079 Services (2) 24,348 19,909 18,063 Other Products (1)(3) 11,132 10,067 8,379 Total net sales $ 215,639 $ 233,715 $ 182,795 (1) Includes deferrals and amortization of related software upgrade rights and non-software services. (2) Includes revenue from iTunes Store, App Store, Mac App Store, TV App Store, iBooks Store, Apple Music, AppleCare, Apple Pay, licensing and other services. (3) Includes sales of Apple TV, Apple Watch, Beats products, iPod and Apple-branded and third-party accessories.

Selected Quarterly Financial 33

Selected Quarterly Financial Information (Unaudited) (Tables)	12 Months Ended
	Sep. 24, 2016
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Financial Information	The following tables show a summary of the Company’s quarterly financial information for each of the four quarters of 2016 and 2015 (in millions, except per share amounts): Fourth Quarter Third Quarter Second Quarter First Quarter 2016: Net sales $ 46,852 $ 42,358 $ 50,557 $ 75,872 Gross margin $ 17,813 $ 16,106 $ 19,921 $ 30,423 Net income $ 9,014 $ 7,796 $ 10,516 $ 18,361 Earnings per share (1) : Basic $ 1.68 $ 1.43 $ 1.91 $ 3.30 Diluted $ 1.67 $ 1.42 $ 1.90 $ 3.28 Fourth Quarter Third Quarter Second Quarter First Quarter 2015: Net sales $ 51,501 $ 49,605 $ 58,010 $ 74,599 Gross margin $ 20,548 $ 19,681 $ 23,656 $ 29,741 Net income $ 11,124 $ 10,677 $ 13,569 $ 18,024 Earnings per share (1) : Basic $ 1.97 $ 1.86 $ 2.34 $ 3.08 Diluted $ 1.96 $ 1.85 $ 2.33 $ 3.06 (1) Basic and diluted earnings per share are computed independently for each of the quarters presented. Therefore, the sum of quarterly basic and diluted per share information may not equal annual basic and diluted earnings per share.

Summary of Significant Accoun34

Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Sep. 24, 2016USD ($)Item	Sep. 26, 2015USD ($)	Sep. 27, 2014USD ($)
Significant Accounting Policies [Line Items]
Deliverable in arrangements | Item	3
Measurement of tax position, minimum likelihood of tax benefits being realized upon ultimate settlement, percentage	50.00%	50.00%
Depreciation and amortization expense	$ 8,300,000,000	$ 9,200,000,000	$ 6,900,000,000
Goodwill impairment charges	0	0	0
Indefinite lived intangible asset impairment charges	$ 0	$ 0	$ 0
Minimum
Significant Accounting Policies [Line Items]
Amortized acquired intangible assets with definite lives useful period (in years)	3 years
Maximum
Significant Accounting Policies [Line Items]
Amortized acquired intangible assets with definite lives useful period (in years)	7 years
Building | Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives of assets (Years)	30 years
Machinery and Equipment | Minimum
Significant Accounting Policies [Line Items]
Estimated useful lives of assets (Years)	1 year
Machinery and Equipment | Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives of assets (Years)	5 years
Internal-Use Software | Minimum
Significant Accounting Policies [Line Items]
Estimated useful lives of assets (Years)	3 years
Internal-Use Software | Maximum
Significant Accounting Policies [Line Items]
Estimated useful lives of assets (Years)	5 years

Summary of Significant Accoun35

Summary of Significant Accounting Policies - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended								12 Months Ended
	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Numerator:
Net income	$ 9,014	$ 7,796	$ 10,516	$ 18,361	$ 11,124	$ 10,677	$ 13,569	$ 18,024	$ 45,687	$ 53,394	$ 39,510
Denominator:
Weighted-average shares outstanding (in shares)									5,470,820	5,753,421	6,085,572
Effect of dilutive securities (in shares)									29,461	39,648	37,091
Weighted-average diluted shares (in shares)									5,500,281	5,793,069	6,122,663
Basic earnings per share (in dollars per share)	$ 1.68	$ 1.43	$ 1.91	$ 3.30	$ 1.97	$ 1.86	$ 2.34	$ 3.08	$ 8.35	$ 9.28	$ 6.49
Diluted earnings per share (in dollars per share)	$ 1.67	$ 1.42	$ 1.90	$ 3.28	$ 1.96	$ 1.85	$ 2.33	$ 3.06	$ 8.31	$ 9.22	$ 6.45

Financial Instruments - Cash an

Financial Instruments - Cash and Available-for-Sale Securities' Adjusted Cost, Gross Unrealized Gains, Gross Unrealized Losses and Fair Value Recorded as Cash and Cash Equivalents or Short-Term or Long-Term Marketable Securities (Detail) - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014	Sep. 28, 2013
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	$ 235,810	$ 206,420
Unrealized Gains	2,186	574
Unrealized Losses	(411)	(1,328)
Fair Value	237,585	205,666
Cash and cash equivalents	20,484	21,120	$ 13,844	$ 14,259
Short-term marketable securities	46,671	20,481
Long-term marketable securities	170,430	164,065
Cash
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	8,601	11,389
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	8,601	11,389
Cash and cash equivalents	8,601	11,389
Short-term marketable securities	0	0
Long-term marketable securities	0	0
Level 1
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	5,073	3,570
Unrealized Gains	0	0
Unrealized Losses	(146)	(144)
Fair Value	4,927	3,426
Cash and cash equivalents	3,666	1,798
Short-term marketable securities	1,261	1,628
Long-term marketable securities	0	0
Level 1 | Money market funds
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	3,666	1,798
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	3,666	1,798
Cash and cash equivalents	3,666	1,798
Short-term marketable securities	0	0
Long-term marketable securities	0	0
Level 1 | Mutual funds
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	1,407	1,772
Unrealized Gains	0	0
Unrealized Losses	(146)	(144)
Fair Value	1,261	1,628
Cash and cash equivalents	0	0
Short-term marketable securities	1,261	1,628
Long-term marketable securities	0	0
Level 2
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	222,136	191,461
Unrealized Gains	2,186	574
Unrealized Losses	(265)	(1,184)
Fair Value	224,057	190,851
Cash and cash equivalents	8,217	7,933
Short-term marketable securities	45,410	18,853
Long-term marketable securities	170,430	164,065
Level 2 | U.S. Treasury securities
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	41,697	34,902
Unrealized Gains	319	181
Unrealized Losses	(4)	(1)
Fair Value	42,012	35,082
Cash and cash equivalents	1,527	0
Short-term marketable securities	13,492	3,498
Long-term marketable securities	26,993	31,584
Level 2 | U.S. agency securities
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	7,543	5,864
Unrealized Gains	16	14
Unrealized Losses	0	0
Fair Value	7,559	5,878
Cash and cash equivalents	2,762	841
Short-term marketable securities	2,441	767
Long-term marketable securities	2,356	4,270
Level 2 | Non-U.S. government securities
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	7,609	6,356
Unrealized Gains	259	45
Unrealized Losses	(27)	(167)
Fair Value	7,841	6,234
Cash and cash equivalents	110	43
Short-term marketable securities	818	135
Long-term marketable securities	6,913	6,056
Level 2 | Certificates of deposit and time deposits
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	6,598	4,347
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	6,598	4,347
Cash and cash equivalents	1,108	2,065
Short-term marketable securities	3,897	1,405
Long-term marketable securities	1,593	877
Level 2 | Commercial paper
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	7,433	6,016
Unrealized Gains	0	0
Unrealized Losses	0	0
Fair Value	7,433	6,016
Cash and cash equivalents	2,468	4,981
Short-term marketable securities	4,965	1,035
Long-term marketable securities	0	0
Level 2 | Corporate securities
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	131,166	116,908
Unrealized Gains	1,409	242
Unrealized Losses	(206)	(985)
Fair Value	132,369	116,165
Cash and cash equivalents	242	3
Short-term marketable securities	19,599	11,948
Long-term marketable securities	112,528	104,214
Level 2 | Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	956	947
Unrealized Gains	5	5
Unrealized Losses	0	0
Fair Value	961	952
Cash and cash equivalents	0	0
Short-term marketable securities	167	48
Long-term marketable securities	794	904
Level 2 | Mortgage- and asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Adjusted Cost	19,134	16,121
Unrealized Gains	178	87
Unrealized Losses	(28)	(31)
Fair Value	19,284	16,177
Cash and cash equivalents	0	0
Short-term marketable securities	31	17
Long-term marketable securities	$ 19,253	$ 16,160

Financial Instruments - Additio

Financial Instruments - Additional Information (Detail) $ in Millions	12 Months Ended
	Sep. 24, 2016USD ($)CustomerVendor	Sep. 26, 2015USD ($)CustomerVendor
Financial Instruments [Line Items]
Maturities of long-term marketable securities, minimum	1 year
Maturities of long-term marketable securities, maximum	5 years
Hedged foreign currency transactions, typical term	12 months
Hedged interest rate transactions, expected period to be recognized	10 years
Reduction to derivative assets by rights of set-off associated with derivative contracts	$ 1,500	$ 2,200
Reduction to derivative liabilities by rights of set-off associated with derivative contracts	1,500	2,200
Net derivative assets (liabilities)	$ 160	$ (78)
Number of customers representing 10% or more of trade receivables | Customer	1	1
Number of vendors representing a significant portion of non-trade receivables | Vendor	2	3
Trade Receivables | Credit Concentration Risk | Customer One
Financial Instruments [Line Items]
Concentration risk, percentage	10.00%	12.00%
Trade Receivables | Credit Concentration Risk | Cellular Network Carriers
Financial Instruments [Line Items]
Concentration risk, percentage	63.00%	71.00%
Non-Trade Receivables | Credit Concentration Risk | Vendor One
Financial Instruments [Line Items]
Concentration risk, percentage	47.00%	38.00%
Non-Trade Receivables | Credit Concentration Risk | Vendor Two
Financial Instruments [Line Items]
Concentration risk, percentage	21.00%	18.00%
Non-Trade Receivables | Credit Concentration Risk | Vendor Three
Financial Instruments [Line Items]
Concentration risk, percentage		14.00%
Accrued Expenses
Financial Instruments [Line Items]
Net cash collateral received, derivative instruments	$ 163	$ 1,000

Financial Instruments - Derivat

Financial Instruments - Derivative Instruments at Gross Fair Value (Detail) - Level 2 - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015
Foreign exchange contracts | Other Current Assets
Derivative assets:
Fair value of derivative assets	$ 671	$ 1,551
Foreign exchange contracts | Accrued expenses
Derivative liabilities:
Fair value of derivative liabilities	1,069	999
Interest rate contracts | Other Current Assets
Derivative assets:
Fair value of derivative assets	728	394
Interest rate contracts | Accrued expenses
Derivative liabilities:
Fair value of derivative liabilities	7	13
Derivatives Designated as Hedging Instruments | Foreign exchange contracts | Other Current Assets
Derivative assets:
Fair value of derivative assets	518	1,442
Derivatives Designated as Hedging Instruments | Foreign exchange contracts | Accrued expenses
Derivative liabilities:
Fair value of derivative liabilities	935	905
Derivatives Designated as Hedging Instruments | Interest rate contracts | Other Current Assets
Derivative assets:
Fair value of derivative assets	728	394
Derivatives Designated as Hedging Instruments | Interest rate contracts | Accrued expenses
Derivative liabilities:
Fair value of derivative liabilities	7	13
Not Designated as Hedging Instrument | Foreign exchange contracts | Other Current Assets
Derivative assets:
Fair value of derivative assets	153	109
Not Designated as Hedging Instrument | Foreign exchange contracts | Accrued expenses
Derivative liabilities:
Fair value of derivative liabilities	134	94
Not Designated as Hedging Instrument | Interest rate contracts | Other Current Assets
Derivative assets:
Fair value of derivative assets	0	0
Not Designated as Hedging Instrument | Interest rate contracts | Accrued expenses
Derivative liabilities:
Fair value of derivative liabilities	$ 0	$ 0

Financial Instruments - Pre-Tax

Financial Instruments - Pre-Tax Gains and Losses of Derivative and Non-Derivative Instruments Designated as Cash Flow, Net Investment and Fair Value Hedges (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) recognized in OCI - effective portion	$ 52	$ 3,481	$ 1,735
Gains/(Losses) reclassified from AOCI into net income - effective portion	874	4,075	(170)
Cash flow hedges | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) recognized in OCI - effective portion	109	3,592	1,750
Gains/(Losses) reclassified from AOCI into net income - effective portion	885	4,092	(154)
Cash flow hedges | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) recognized in OCI - effective portion	(57)	(111)	(15)
Gains/(Losses) reclassified from AOCI into net income - effective portion	(11)	(17)	(16)
Net investment hedges
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) recognized in OCI - effective portion	(258)	96	53
Net investment hedges | Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) recognized in OCI - effective portion	0	167	53
Net investment hedges | Foreign currency debt
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) recognized in OCI - effective portion	(258)	(71)	0
Fair value hedges | Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains/(Losses) on derivative instruments	341	337	39
Gains/(Losses) related to hedged items	$ (341)	$ (337)	$ (39)

Financial Instruments - Notiona

Financial Instruments - Notional Amounts of Outstanding Derivative Instruments and Credit Risk Amounts Associated with Outstanding or Unsettled Derivative Instruments (Detail) - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015
Derivatives Designated as Hedging Instruments | Foreign exchange contracts
Derivative [Line Items]
Derivative, notional amount	$ 44,678	$ 70,054
Credit risk	518	1,385
Derivatives Designated as Hedging Instruments | Interest rate contracts
Derivative [Line Items]
Derivative, notional amount	24,500	18,750
Credit risk	728	394
Not Designated as Hedging Instrument | Foreign exchange contracts
Derivative [Line Items]
Derivative, notional amount	54,305	49,190
Credit risk	$ 153	$ 109

Consolidated Financial Statem41

Consolidated Financial Statement Details - Property, Plant and Equipment, Net (Detail) - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 61,245	$ 49,257
Accumulated depreciation and amortization	(34,235)	(26,786)
Total property, plant and equipment, net	27,010	22,471
Land and Buildings
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	10,185	6,956
Machinery, Equipment and Internal-Use Software
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	44,543	37,038
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 6,517	$ 5,263

Consolidated Financial Statem42

Consolidated Financial Statement Details - Other Non-Current Liabilities (Detail) - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015
Other Liabilities Disclosure [Abstract]
Deferred tax liabilities	$ 26,019	$ 24,062
Other non-current liabilities	10,055	9,365
Total other non-current liabilities	$ 36,074	$ 33,427

Consolidated Financial Statem43

Consolidated Financial Statement Details - Other Income/(Expense), Net (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Other Income and Expenses [Abstract]
Interest and dividend income	$ 3,999	$ 2,921	$ 1,795
Interest expense	(1,456)	(733)	(384)
Other expense, net	(1,195)	(903)	(431)
Total other income/(expense), net	$ 1,348	$ 1,285	$ 980

Acquired Intangible Assets - Co

Acquired Intangible Assets - Components of Gross and Net Intangible Asset Balances (Detail) - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Definite-lived and amortizable acquired intangible assets, gross carrying amount	$ 8,912	$ 8,125
Definite-lived and amortizable acquired intangible assets, accumulated amortization	(5,806)	(4,332)
Definite-lived and amortizable acquired intangible assets, net carrying amount	3,106	3,793
Indefinite-lived and non-amortizable acquired intangible assets	100	100
Total acquired intangible assets, gross carrying amount	9,012	8,225
Total acquired intangible assets, net carrying amount	$ 3,206	$ 3,893

Acquired Intangible Assets - Ad

Acquired Intangible Assets - Additional Information (Detail) - USD ($) $ in Billions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense related to acquired intangible assets	$ 1.5	$ 1.3	$ 1.1
Weighted-average amortization period for acquired intangible assets (in years)	3 years 4 months 24 days

Acquired Intangible Assets - Ex

Acquired Intangible Assets - Expected Annual Amortization Expense Related to Acquired Intangible Assets (Detail) - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2,017	$ 1,197
2,018	902
2,019	449
2,020	255
2,021	175
Thereafter	128
Definite-lived and amortizable acquired intangible assets, net carrying amount	$ 3,106	$ 3,793

Provision for Income Taxes (Det

Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Federal:
Current	$ 7,652	$ 11,730	$ 8,624
Deferred	5,043	3,408	3,183
Federal income tax expense (benefit)	12,695	15,138	11,807
State:
Current	990	1,265	855
Deferred	(138)	(220)	(178)
State income tax expense (benefits)	852	1,045	677
Foreign:
Current	2,105	4,744	2,147
Deferred	33	(1,806)	(658)
Foreign income tax expense (benefit)	2,138	2,938	1,489
Provision for income taxes	$ 15,685	$ 19,121	$ 13,973

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) € in Billions	Aug. 30, 2016EUR (€)Subsidiary	Sep. 24, 2016USD ($)	Sep. 26, 2015USD ($)	Sep. 27, 2014USD ($)	Sep. 28, 2013USD ($)
Income Tax Disclosure [Abstract]
Foreign pretax earnings		$ 41,100,000,000	$ 47,600,000,000	$ 33,600,000,000
Statutory tax rate in foreign operations		12.50%
Undistributed earnings of foreign subsidiaries		$ 109,800,000,000
Deferred tax liability related to foreign earnings that may be repatriated		35,900,000,000
Cash, cash equivalents and marketable securities held by foreign subsidiaries		$ 216,000,000,000	$ 186,900,000,000
Reconciliation of provision for income taxes, statutory federal income tax rate		35.00%	35.00%	35.00%
Tax benefits from equity awards		$ 379,000,000	$ 748,000,000	$ 706,000,000
Measurement of tax position, minimum likelihood of tax benefits being realized upon ultimate settlement, percentage		50.00%	50.00%
Gross unrecognized tax benefits		$ 7,724,000,000	$ 6,900,000,000	4,033,000,000	$ 2,714,000,000
Gross unrecognized tax benefits that would affect effective tax rate, if recognized		2,800,000,000	2,500,000,000
Unrecognized tax benefits, gross interest and penalties accrued		1,000,000,000	1,300,000,000
Recognized interest and penalty expense of tax matters		295,000,000	$ 709,000,000	$ 40,000,000
Reasonably possible decrease in gross unrecognized tax benefits over next 12 months, up to		$ 850,000,000
Unfavorable Investigation Outcome, EU State Aid Rules
Loss Contingencies [Line Items]
Number of subsidiaries impacted by the European Commission tax ruling | Subsidiary	2
Maximum potential loss related to European Commission tax ruling | €	€ 13

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of the Provision for Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Income Tax Disclosure [Abstract]
Computed expected tax	$ 21,480	$ 25,380	$ 18,719
State taxes, net of federal effect	553	680	469
Indefinitely invested earnings of foreign subsidiaries	(5,582)	(6,470)	(4,744)
Domestic production activities deduction	(382)	(426)	(495)
Research and development credit, net	(371)	(171)	(88)
Other	(13)	128	112
Provision for income taxes	$ 15,685	$ 19,121	$ 13,973
Effective tax rate	25.60%	26.40%	26.10%

Income Taxes - Significant Comp

Income Taxes - Significant Components of the Company's Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015
Deferred tax assets:
Accrued liabilities and other reserves	$ 4,135	$ 4,205
Basis of capital assets	2,107	2,238
Deferred revenue	1,717	1,941
Deferred cost sharing	667	667
Share-based compensation	601	575
Unrealized losses	0	564
Other	788	721
Total deferred tax assets, net of valuation allowance of $0	10,015	10,911
Deferred tax liabilities:
Unremitted earnings of foreign subsidiaries	31,436	26,868
Other	485	303
Total deferred tax liabilities	31,921	27,171
Net deferred tax liabilities	(21,906)	(16,260)
Deferred tax assets, valuation allowance	$ 0	$ 0

Income Taxes - Aggregate Change

Income Taxes - Aggregate Changes in Gross Unrecognized Tax Benefits Excluding Interest and Penalties (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning Balance	$ 6,900	$ 4,033	$ 2,714
Increases related to tax positions taken during a prior year	1,121	2,056	1,295
Decreases related to tax positions taken during a prior year	(257)	(345)	(280)
Increases related to tax positions taken during the current year	1,578	1,278	882
Decreases related to settlements with taxing authorities	(1,618)	(109)	(574)
Decreases related to expiration of statute of limitations	0	(13)	(4)
Ending Balance	$ 7,724	$ 6,900	$ 4,033

Debt - Additional Information (

Debt - Additional Information (Detail) $ in Millions, ¥ in Billions	12 Months Ended
	Sep. 24, 2016USD ($)	Sep. 26, 2015USD ($)	Sep. 27, 2014USD ($)	Sep. 24, 2016JPY (¥)	Jun. 25, 2016USD ($)	Mar. 26, 2016USD ($)
Debt Instrument [Line Items]
Commercial paper	$ 8,105	$ 8,499
Aggregate principal balance of debt	78,384	55,701
Interest expense	$ 1,400	$ 722	$ 381
Commercial paper
Debt Instrument [Line Items]
Commercial paper, weighted-average interest rate	0.45%	0.14%		0.45%
Level 2
Debt Instrument [Line Items]
Debt instrument fair value	$ 81,700	$ 54,900
Currency Swaps
Debt Instrument [Line Items]
Derivative, notional amount					$ 1,000
Interest Rate Swap
Debt Instrument [Line Items]
Derivative, notional amount	1,800					$ 5,000
Third quarter 2015 Japanese yen-denominated debt issuance | Net investment hedges
Debt Instrument [Line Items]
Debt instrument, face amount | ¥				¥ 195.5
Debt instrument, senior notes	$ 1,900
Maximum
Debt Instrument [Line Items]
Commercial paper, maturity period	9 months

Debt - Summary of Cash Flows As

Debt - Summary of Cash Flows Associated With Issuance and Maturities of Commercial Paper (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Maturities less than 90 days:
Proceeds from (repayments of) commercial paper, net	$ (869)	$ 5,293
Maturities greater than 90 days:
Proceeds from commercial paper	3,632	3,851
Repayments of commercial paper	(3,160)	(6,953)
Proceeds from (repayments of) commercial paper, net	472	(3,102)
Total change in commercial paper, net	$ (397)	$ 2,191	$ 6,306

Debt - Summary of Term Debt (De

Debt - Summary of Term Debt (Detail)	12 Months Ended
	Sep. 24, 2016USD ($)	Sep. 26, 2015USD ($)	Sep. 24, 2016AUD
Debt Instrument [Line Items]
Total term debt	$ 78,384,000,000	$ 55,701,000,000
Unamortized premium/(discount) and issuance costs, net	(174,000,000)	(248,000,000)
Hedge accounting fair value adjustments	717,000,000	376,000,000
Less: Current portion of long-term debt	(3,500,000,000)	(2,500,000,000)
Total long-term debt	75,427,000,000	53,329,000,000
2013 debt issuance
Debt Instrument [Line Items]
Debt instrument, face amount	17,000,000,000
2013 debt issuance | Floating-rate notes
Debt Instrument [Line Items]
Debt instrument, senior notes	$ 2,000,000,000	$ 3,000,000,000
Debt instrument maturity year, start	2,018
Debt instrument maturity year, end	2,018
Debt instrument effective interest rate, minimum	1.10%	0.51%
Debt instrument effective interest rate, maximum	1.10%	1.10%
2013 debt issuance | Fixed-rate 1.000% - 3.850% notes
Debt Instrument [Line Items]
Debt instrument, senior notes	$ 12,500,000,000	$ 14,000,000,000
Debt instrument maturity year, start	2,018
Debt instrument maturity year, end	2,043
Debt instrument effective interest rate, minimum	1.08%	0.51%
Debt instrument effective interest rate, maximum	3.91%	3.91%
Debt instrument interest rate, minimum	1.00%
Debt instrument interest rate, maximum	3.85%
2014 debt issuance
Debt Instrument [Line Items]
Debt instrument, face amount	$ 12,000,000,000
2014 debt issuance | Floating-rate notes
Debt Instrument [Line Items]
Debt instrument, senior notes	$ 2,000,000,000	$ 2,000,000,000
Debt instrument maturity year, start	2,017
Debt instrument maturity year, end	2,019
Debt instrument effective interest rate, minimum	0.86%	0.37%
Debt instrument effective interest rate, maximum	1.09%	0.60%
2014 debt issuance | Fixed-rate 1.050% - 4.450% notes
Debt Instrument [Line Items]
Debt instrument, senior notes	$ 10,000,000,000	$ 10,000,000,000
Debt instrument maturity year, start	2,017
Debt instrument maturity year, end	2,044
Debt instrument effective interest rate, minimum	0.85%	0.37%
Debt instrument effective interest rate, maximum	4.48%	4.48%
Debt instrument interest rate, minimum	1.05%
Debt instrument interest rate, maximum	4.45%
2015 debt issuance
Debt Instrument [Line Items]
Debt instrument, face amount	$ 27,300,000,000
2015 debt issuance | Floating-rate notes
Debt Instrument [Line Items]
Debt instrument, senior notes	$ 1,781,000,000	$ 1,743,000,000
Debt instrument maturity year, start	2,017
Debt instrument maturity year, end	2,020
Debt instrument effective interest rate, minimum	0.87%	0.36%
Debt instrument effective interest rate, maximum	1.87%	1.87%
2015 debt issuance | Fixed-rate 0.350% - 4.375% notes
Debt Instrument [Line Items]
Debt instrument, senior notes	$ 25,144,000,000	$ 24,958,000,000
Debt instrument maturity year, start	2,017
Debt instrument maturity year, end	2,045
Debt instrument effective interest rate, minimum	0.28%	0.28%
Debt instrument effective interest rate, maximum	4.51%	4.51%
Debt instrument interest rate, minimum	0.35%
Debt instrument interest rate, maximum	4.375%
Second quarter 2016 debt issuance
Debt Instrument [Line Items]
Debt instrument, face amount	$ 15,500,000,000
Second quarter 2016 debt issuance | Floating Rate Notes Due 2019
Debt Instrument [Line Items]
Debt instrument maturity year	2,019
Debt instrument, senior notes	$ 500,000,000
Debt instrument effective interest rate	1.64%		1.64%
Second quarter 2016 debt issuance | Floating Rate Notes Due 2021
Debt Instrument [Line Items]
Debt instrument maturity year	2,021
Debt instrument, senior notes	$ 500,000,000
Debt instrument effective interest rate	1.95%		1.95%
Second quarter 2016 debt issuance | Fixed-rate 1.300% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,018
Debt instrument, senior notes	$ 500,000,000
Debt instrument effective interest rate	1.32%		1.32%
Debt instrument interest rate	1.30%		1.30%
Second quarter 2016 debt issuance | Fixed-rate 1.700% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,019
Debt instrument, senior notes	$ 1,000,000,000
Debt instrument effective interest rate	1.71%		1.71%
Debt instrument interest rate	1.70%		1.70%
Second quarter 2016 debt issuance | Fixed-rate 2.250% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,021
Debt instrument, senior notes	$ 3,000,000,000
Debt instrument effective interest rate	1.91%		1.91%
Debt instrument interest rate	2.25%		2.25%
Second quarter 2016 debt issuance | Fixed-rate 2.850% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,023
Debt instrument, senior notes	$ 1,500,000,000
Debt instrument effective interest rate	2.58%		2.58%
Debt instrument interest rate	2.85%		2.85%
Second quarter 2016 debt issuance | Fixed-rate 3.250% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,026
Debt instrument, senior notes	$ 3,250,000,000
Debt instrument effective interest rate	2.51%		2.51%
Debt instrument interest rate	3.25%		3.25%
Second quarter 2016 debt issuance | Fixed-rate 4.500% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,036
Debt instrument, senior notes	$ 1,250,000,000
Debt instrument effective interest rate	4.54%		4.54%
Debt instrument interest rate	4.50%		4.50%
Second quarter 2016 debt issuance | Fixed-rate 4.650% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,046
Debt instrument, senior notes	$ 4,000,000,000
Debt instrument effective interest rate	4.58%		4.58%
Debt instrument interest rate	4.65%		4.65%
Third quarter 2016 Australian dollar denominated debt issuance
Debt Instrument [Line Items]
Debt instrument, face amount | AUD			AUD 1,400,000,000
Third quarter 2016 Australian dollar denominated debt issuance | Fixed-rate 2.650% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,020
Debt instrument, senior notes	$ 493,000,000
Debt instrument effective interest rate	1.92%		1.92%
Debt instrument interest rate	2.65%		2.65%
Third quarter 2016 Australian dollar denominated debt issuance | Fixed-rate 3.350% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,024
Debt instrument, senior notes	$ 342,000,000
Debt instrument effective interest rate	2.61%		2.61%
Debt instrument interest rate	3.35%		3.35%
Third quarter 2016 Australian dollar denominated debt issuance | Fixed-rate 3.600% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,026
Debt instrument, senior notes	$ 247,000,000
Debt instrument effective interest rate	2.84%		2.84%
Debt instrument interest rate	3.60%		3.60%
Third quarter 2016 debt issuance | Fixed-rate 4.150% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,046
Debt instrument, senior notes	$ 1,377,000,000
Debt instrument effective interest rate	4.15%		4.15%
Debt instrument, face amount	$ 1,400,000,000
Debt instrument interest rate	4.15%		4.15%
Fourth quarter 2016 debt issuance
Debt Instrument [Line Items]
Debt instrument, face amount	$ 7,000,000,000
Fourth quarter 2016 debt issuance | Floating-rate notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,019
Debt instrument, senior notes	$ 350,000,000
Debt instrument effective interest rate	0.91%		0.91%
Fourth quarter 2016 debt issuance | Fixed-rate 1.100% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,019
Debt instrument, senior notes	$ 1,150,000,000
Debt instrument effective interest rate	1.13%		1.13%
Debt instrument interest rate	1.10%		1.10%
Fourth quarter 2016 debt issuance | Fixed-rate 1.550% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,021
Debt instrument, senior notes	$ 1,250,000,000
Debt instrument effective interest rate	1.40%		1.40%
Debt instrument interest rate	1.55%		1.55%
Fourth quarter 2016 debt issuance | Fixed-rate 2.450% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,026
Debt instrument, senior notes	$ 2,250,000,000
Debt instrument effective interest rate	2.15%		2.15%
Debt instrument interest rate	2.45%		2.45%
Fourth quarter 2016 debt issuance | Fixed-rate 3.850% notes
Debt Instrument [Line Items]
Debt instrument maturity year	2,046
Debt instrument, senior notes	$ 2,000,000,000
Debt instrument effective interest rate	3.86%		3.86%
Debt instrument interest rate	3.85%		3.85%

Debt - Debt Instrument Future P

Debt - Debt Instrument Future Principal Payments (Detail) - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015
Debt Disclosure [Abstract]
2,017	$ 3,500
2,018	6,500
2,019	6,834
2,020	6,454
2,021	7,750
Thereafter	47,346
Total term debt	$ 78,384	$ 55,701

Shareholders' Equity - Summary

Shareholders' Equity - Summary of Dividends Declared and Paid (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Equity [Abstract]
Dividends per share (in dollars per share)	$ 0.57	$ 0.57	$ 0.52	$ 0.52	$ 0.52	$ 0.52	$ 0.47	$ 0.47	$ 2.18	$ 1.98	$ 1.82
Amount	$ 3,071	$ 3,117	$ 2,879	$ 2,898	$ 2,950	$ 2,997	$ 2,734	$ 2,750	$ 11,965	$ 11,431

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) - USD ($)	Sep. 24, 2016	Apr. 30, 2016	Sep. 26, 2015
Equity [Abstract]
Maximum amount authorized for repurchase of common stock		$ 175,000,000,000	$ 140,000,000,000
Share repurchase program, utilized amount	$ 133,000,000,000

Shareholders' Equity - Accelera

Shareholders' Equity - Accelerated Share Repurchase Activity and Related Information (Detail) - USD ($) $ / shares in Units, shares in Thousands	2 Months Ended	3 Months Ended			4 Months Ended	6 Months Ended	7 Months Ended	12 Months Ended
	Sep. 24, 2016	Sep. 24, 2016	Jun. 25, 2016	Jul. 31, 2015	Aug. 31, 2016	Apr. 30, 2016	Feb. 28, 2015	Dec. 31, 2014
August 2016 ASR
Accelerated Share Repurchases [Line Items]
Stock repurchase program completion date	2016-11
Number of shares repurchased (in shares)	22,468
ASR amount	$ 3,000,000,000
May 2016 ASR
Accelerated Share Repurchases [Line Items]
Stock repurchase program completion date					2016-08
Number of shares repurchased (in shares)		12,300	48,200		60,452
Average repurchase price per share (in dollars per share)					$ 99.25
ASR amount					$ 6,000,000,000
November 2015 ASR
Accelerated Share Repurchases [Line Items]
Stock repurchase program completion date						2016-04
Number of shares repurchased (in shares)						29,122
Average repurchase price per share (in dollars per share)						$ 103.02
ASR amount						$ 3,000,000,000
May 2015 ASR
Accelerated Share Repurchases [Line Items]
Stock repurchase program completion date				2015-07
Number of shares repurchased (in shares)				48,293
Average repurchase price per share (in dollars per share)				$ 124.24
ASR amount				$ 6,000,000,000
August 2014 ASR
Accelerated Share Repurchases [Line Items]
Stock repurchase program completion date							2015-02
Number of shares repurchased (in shares)							81,525
Average repurchase price per share (in dollars per share)							$ 110.40
ASR amount							$ 9,000,000,000
January 2014 ASR
Accelerated Share Repurchases [Line Items]
Stock repurchase program completion date								2014-12
Number of shares repurchased (in shares)								134,247
Average repurchase price per share (in dollars per share)								$ 89.39
ASR amount								$ 12,000,000,000

Shareholders' Equity - Repurcha

Shareholders' Equity - Repurchases of Common Shares in Open Market (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended								12 Months Ended
	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Stock Repurchase Program [Line Items]
Amount									$ 29,000	$ 36,026	$ 45,000
Open Market Repurchases
Stock Repurchase Program [Line Items]
Number of shares repurchased (in shares)	28,579	41,238	71,766	25,984	121,802	31,231	56,400	45,704	167,567	255,137
Average repurchase price per share (in dollars per share)	$ 104.97	$ 97	$ 97.54	$ 115.45	$ 115.15	$ 128.08	$ 124.11	$ 109.40
Amount	$ 3,000	$ 4,000	$ 7,000	$ 3,000	$ 14,026	$ 4,000	$ 7,000	$ 5,000	$ 17,000	$ 30,026

Comprehensive Income - Pre-tax

Comprehensive Income - Pre-tax Amounts Reclassified from AOCI into Consolidated Statements of Operations (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue	$ (46,852)	$ (42,358)	$ (50,557)	$ (75,872)	$ (51,501)	$ (49,605)	$ (58,010)	$ (74,599)	$ (215,639)	$ (233,715)	$ (182,795)
Cost of sales									131,376	140,089	112,258
Other income/(expense), net									1,348	1,285	980
Income before provision for income taxes									(61,372)	(72,515)	$ (53,483)
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before provision for income taxes									(785)	(4,036)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains/Losses on Derivative Instruments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before provision for income taxes									(872)	(4,127)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains/Losses on Derivative Instruments | Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue									(865)	(2,432)
Cost of sales									(130)	(2,168)
Other income/(expense), net									(111)	(456)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains/Losses on Derivative Instruments | Interest rate contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other income/(expense), net									(12)	(17)
Reclassification out of Accumulated Other Comprehensive Income | Unrealized Gains/Losses on Marketable Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other income/(expense), net									$ (87)	$ (91)

Comprehensive Income - Change i

Comprehensive Income - Change in Accumulated Other Comprehensive Income by Component (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balances	$ 119,355	$ 111,547
Other comprehensive income/(loss) before reclassifications	2,526	1,987
Amounts reclassified from AOCI	(785)	(4,036)
Tax effect	(762)	622
Other comprehensive income/(loss)	979	(1,427)
Ending Balances	128,249	119,355
Cumulative Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balances	(653)	(242)
Other comprehensive income/(loss) before reclassifications	67	(612)
Amounts reclassified from AOCI	0	0
Tax effect	8	201
Other comprehensive income/(loss)	75	(411)
Ending Balances	(578)	(653)
Unrealized Gains/Losses on Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balances	772	1,364
Other comprehensive income/(loss) before reclassifications	14	3,346
Amounts reclassified from AOCI	(872)	(4,127)
Tax effect	124	189
Other comprehensive income/(loss)	(734)	(592)
Ending Balances	38	772
Unrealized Gains/Losses on Marketable Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balances	(464)	(40)
Other comprehensive income/(loss) before reclassifications	2,445	(747)
Amounts reclassified from AOCI	87	91
Tax effect	(894)	232
Other comprehensive income/(loss)	1,638	(424)
Ending Balances	1,174	(464)
Accumulated Other Comprehensive Income/(Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balances	(345)	1,082
Ending Balances	$ 634	$ (345)

Benefit Plans - Additional Info

Benefit Plans - Additional Information (Detail) - USD ($)	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014	Mar. 29, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum portion of pre-tax earnings under Savings Plan that can be deferred by participating U.S. employees	$ 18,000
Fair value of vested RSUs as of vesting date	$ 5,100,000,000	$ 4,800,000,000	$ 3,400,000,000
The total shares withheld upon vesting of RSUs (in shares)	15,900,000	14,100,000	15,600,000
Taxes paid related to net share settlement of equity awards	$ 1,700,000,000	$ 1,600,000,000	$ 1,200,000,000
Income tax benefit related to share-based compensation expense	1,400,000,000	$ 1,200,000,000	$ 1,000,000,000
Total unrecognized compensation cost on stock options and RSUs	$ 7,500,000,000
Total unrecognized compensation cost on stock options and RSUs, weighted-average recognition period (in years)	2 years 7 months 12 days
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance under Employee Benefit Plans (in shares)	47,000,000
Employee common stock purchases through payroll deductions, price as a percentage of fair market value	85.00%
Employee stock purchase plan offering period	6 months
Payroll deductions as a percentage of employee compensation, maximum	10.00%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Rate of contribution to Savings Plan as a percentage of employees contribution	50.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Rate of contribution to Savings Plan as a percentage of employees contribution	100.00%
Rate of contribution to Savings Plan as a percentage of employees earning	6.00%
Maximum | Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock purchase program authorized amount	$ 25,000
Employee Stock Plan, 2014 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for future issuance under stock plans (in shares)				385,000,000
Shares reserved for future issuance under Employee Benefit Plans (in shares)	386,400,000
Employee Stock Plan, 2014 Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted vesting period	4 years
Number of common stock issued per RSU upon vesting	1
Reduction in number of shares available for grant per share issued with respect to RSUs granted	2
Increase in number of shares available for grant per RSU cancelled or withheld for tax withholding	2
Employee Stock Plan, 2003 Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common stock issued per RSU upon vesting	1
Employee Stock Plan, 2003 Plan | Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted exercisable period	4 years
Employee Stock Plan, 2003 Plan | Minimum | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted vesting period	2 years
Employee Stock Plan, 2003 Plan | Minimum | Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration term of options granted under Employee Benefit Plans	7 years
Employee Stock Plan, 2003 Plan | Maximum | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs granted vesting period	4 years
Employee Stock Plan, 2003 Plan | Maximum | Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration term of options granted under Employee Benefit Plans	10 years
Directors Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for future issuance under Employee Benefit Plans (in shares)	1,100,000
Share based compensation, expiration date	Nov. 9, 2019
Directors Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in number of shares available for grant per RSU cancelled or withheld for tax withholding	2

Benefit Plans - Restricted Stoc

Benefit Plans - Restricted Stock Units Activity and Related Information (Detail) - Restricted Stock Units - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Number of Restricted Stock Units
Beginning balance (in shares)	101,467	103,822	93,284
Restricted stock units granted (in shares)	49,468	45,587	59,269
Restricted stock units vested (in shares)	(46,313)	(41,684)	(43,111)
Restricted stock units cancelled (in shares)	(5,533)	(6,258)	(5,620)
Ending balance (in shares)	99,089	101,467	103,822
Weighted-Average Grant Date Fair Value Per Share
Beginning balance (in dollars per share)	$ 85.77	$ 70.98	$ 62.24
Restricted stock units granted (in dollars per share)	109.28	105.51	74.54
Restricted stock units vested (in dollars per share)	84.44	71.32	57.29
Restricted stock units cancelled (in dollars per share)	96.48	80.34	68.47
Ending balance (in dollars per share)	$ 97.54	$ 85.77	$ 70.98
Aggregate Intrinsic Value
Aggregate intrinsic value of Restricted stock units	$ 11,168

Benefit Plans - Summary of Shar

Benefit Plans - Summary of Share-Based Compensation Expense (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	$ 4,210	$ 3,586	$ 2,863
Cost of sales
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	769	575	450
Research and Development
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	1,889	1,536	1,216
Selling, General and Administrative
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	$ 1,552	$ 1,475	$ 1,197

Commitments and Contingencies -

Commitments and Contingencies - Changes in Accrued Warranties and Related Costs (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Movement in Standard Product Warranty Accrual [Roll Forward]
Beginning accrued warranty and related costs	$ 4,780	$ 4,159	$ 2,967
Cost of warranty claims	(4,663)	(4,401)	(3,760)
Accruals for product warranty	3,585	5,022	4,952
Ending accrued warranty and related costs	$ 3,702	$ 4,780	$ 4,159

Commitments and Contingencies66

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2015	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014	May 18, 2015	Mar. 06, 2014	Aug. 24, 2012
Commitments and Contingencies Disclosure [Line Items]
Purchase commitments maximum period		150 days
Total future minimum lease payments under noncancelable operating leases		$ 7,627
Rent expense under cancelable and noncancelable operating leases		$ 939	$ 794	$ 717
Samsung Electronics Co Ltd
Commitments and Contingencies Disclosure [Line Items]
Result of legal proceedings							$ 1,050
Award from legal proceeding					$ 548	$ 930
Samsung Electronics Co Ltd | Sales Revenue, Net
Commitments and Contingencies Disclosure [Line Items]
Proceeds from legal settlement	$ 548
Maximum | Major Facility Lease
Commitments and Contingencies Disclosure [Line Items]
Term of leases		10 years

Commitments and Contingencies67

Commitments and Contingencies - Future Minimum Lease Payments under Noncancelable Operating Leases (Detail) $ in Millions	Sep. 24, 2016USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2,017	$ 929
2,018	919
2,019	915
2,020	889
2,021	836
Thereafter	3,139
Total	$ 7,627

Segment Information and Geogr68

Segment Information and Geographic Data - Summary Information by Operating Segment (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Segment Reporting Information [Line Items]
Net sales	$ 46,852	$ 42,358	$ 50,557	$ 75,872	$ 51,501	$ 49,605	$ 58,010	$ 74,599	$ 215,639	$ 233,715	$ 182,795
Operating income									60,024	71,230	52,503
Americas
Segment Reporting Information [Line Items]
Net sales									86,613	93,864	80,095
Operating income									28,172	31,186	26,158
Europe
Segment Reporting Information [Line Items]
Net sales									49,952	50,337	44,285
Operating income									15,348	16,527	14,434
Greater China
Segment Reporting Information [Line Items]
Net sales									48,492	58,715	31,853
Operating income									18,835	23,002	11,039
Japan
Segment Reporting Information [Line Items]
Net sales									16,928	15,706	15,314
Operating income									7,165	7,617	6,904
Rest of Asia Pacific
Segment Reporting Information [Line Items]
Net sales									13,654	15,093	11,248
Operating income									$ 4,781	$ 5,518	$ 3,674

Segment Information and Geogr69

Segment Information and Geographic Data - Reconciliation of Segment Operating Income to Consolidated Statements of Operations (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income	$ 60,024	$ 71,230	$ 52,503
Research and development expense	(10,045)	(8,067)	(6,041)
Operating income	60,024	71,230	52,503
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income	74,301	83,850	62,209
Operating income	74,301	83,850	62,209
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Research and development expense	(10,045)	(8,067)	(6,041)
Corporate Non-Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Other corporate expenses, net	$ (4,232)	$ (4,553)	$ (3,665)

Segment Information and Geogr70

Segment Information and Geographic Data - Additional Information (Detail)	12 Months Ended
	Sep. 24, 2016
Segment Reporting [Abstract]
Countries representing greater than 10% of net sales	The U.S. and China were the only countries that accounted for more than 10% of the Company’s net sales in 2016, 2015 and 2014
Customers representing greater than 10% of net sales	no single customer that accounted for more than 10% of net sales in 2016, 2015 or 2014

Segment Information and Geogr71

Segment Information and Geographic Data - Net Sales (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 46,852	$ 42,358	$ 50,557	$ 75,872	$ 51,501	$ 49,605	$ 58,010	$ 74,599	$ 215,639	$ 233,715	$ 182,795
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									75,667	81,732	68,909
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									46,349	56,547	30,638
Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales									$ 93,623	$ 95,436	$ 83,248

Segment Information and Geogr72

Segment Information and Geographic Data - Long-Lived Assets (Detail) - USD ($) $ in Millions	Sep. 24, 2016	Sep. 26, 2015
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 27,010	$ 23,784
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	16,364	12,022
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	7,807	8,722
Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 2,839	$ 3,040

Segment Information and Geogr73

Segment Information and Geographic Data - Net Sales by Product (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Segment Reporting Information [Line Items]
Net sales	$ 46,852	$ 42,358	$ 50,557	$ 75,872	$ 51,501	$ 49,605	$ 58,010	$ 74,599	$ 215,639	$ 233,715	$ 182,795
iPhone
Segment Reporting Information [Line Items]
Net sales									136,700	155,041	101,991
iPad
Segment Reporting Information [Line Items]
Net sales									20,628	23,227	30,283
Mac
Segment Reporting Information [Line Items]
Net sales									22,831	25,471	24,079
Services
Segment Reporting Information [Line Items]
Net sales									24,348	19,909	18,063
Other Products
Segment Reporting Information [Line Items]
Net sales									$ 11,132	$ 10,067	$ 8,379

Selected Quarterly Financial 74

Selected Quarterly Financial Information - Summary of Quarterly Financial Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Selected Quarterly Financial Information [Abstract]
Net sales	$ 46,852	$ 42,358	$ 50,557	$ 75,872	$ 51,501	$ 49,605	$ 58,010	$ 74,599	$ 215,639	$ 233,715	$ 182,795
Gross margin	17,813	16,106	19,921	30,423	20,548	19,681	23,656	29,741	84,263	93,626	70,537
Net income	$ 9,014	$ 7,796	$ 10,516	$ 18,361	$ 11,124	$ 10,677	$ 13,569	$ 18,024	$ 45,687	$ 53,394	$ 39,510
Earnings per share:
Basic (in dollars per share)	$ 1.68	$ 1.43	$ 1.91	$ 3.30	$ 1.97	$ 1.86	$ 2.34	$ 3.08	$ 8.35	$ 9.28	$ 6.49
Diluted (in dollars per share)	$ 1.67	$ 1.42	$ 1.90	$ 3.28	$ 1.96	$ 1.85	$ 2.33	$ 3.06	$ 8.31	$ 9.22	$ 6.45