Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Debt - Additional Information (Detail) $ in Millions, ¥ in Billions	3 Months Ended		6 Months Ended
	Mar. 26, 2016 USD ($)	Mar. 28, 2015 USD ($)	Mar. 26, 2016 USD ($)	Mar. 28, 2015 USD ($)	Mar. 26, 2016 JPY (¥)	Sep. 26, 2015 USD ($)
Debt Instrument [Line Items]
Commercial paper	$ 7,998		$ 7,998			$ 8,499
Debt instrument aggregate principal amount	71,344		71,344			55,701
Interest expense	311	$ 161	582	$ 289
Second quarter 2016 debt issuance
Debt Instrument [Line Items]
Debt instrument, face amount	15,500		15,500
Debt instrument, senior notes	15,500		15,500			0
Net investment hedges \| Third quarter 2015 Japanese yen-denominated debt issuance
Debt Instrument [Line Items]
Debt instrument, face amount \| ¥					¥ 149.3
Debt instrument, senior notes	1,300		1,300			$ 2,100
Interest Rate Swaps \| Second quarter 2016 debt issuance
Debt Instrument [Line Items]
Notional Amount	$ 5,000		$ 5,000
Commercial paper
Debt Instrument [Line Items]
Commercial paper, weighted-average interest rate	0.39%		0.39%		0.39%	0.14%
Commercial paper \| Maximum
Debt Instrument [Line Items]
Commercial paper, maturity period			9 months
Level 2
Debt Instrument [Line Items]
Debt instrument fair value	$ 72,400		$ 72,400			$ 54,900