Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement.

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Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk.

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Amount of liability hedged in fair value hedging relationship.

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Financial Instruments - Derivative Instruments Designated as Fair Value Hedges and Related Hedged Items (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 26, 2021	Jun. 27, 2020	Jun. 26, 2021	Jun. 27, 2020	Sep. 26, 2020
Foreign exchange contracts
Carrying amounts of hedged assets/(liabilities) and cumulative hedging adjustments:
Cumulative hedging adjustment increases/(decreases) included in the carrying amount of hedged marketable securities	$ 538		$ 538		$ 493
Interest rate contracts
Carrying amounts of hedged assets/(liabilities) and cumulative hedging adjustments:
Cumulative hedging adjustment (increases)/decreases included in the carrying amount of hedged fixed-rate debt	(891)		(891)		(1,541)
Current marketable securities and non-current marketable securities \| Foreign exchange contracts
Carrying amounts of hedged assets/(liabilities) and cumulative hedging adjustments:
Carrying amount of hedged marketable securities	16,254		16,254		16,270
Current term debt and non-current term debt \| Interest rate contracts
Carrying amounts of hedged assets/(liabilities) and cumulative hedging adjustments:
Carrying amount of hedged fixed-rate debt	(18,384)		(18,384)		$ (21,033)
OI&E
Gains/(Losses) related to derivative instruments and hedged items:
Gains/(Losses) on derivative instruments	(162)	$ (618)	(963)	$ 763
Gains/(Losses) related to hedged items	162	618	963	(763)
OI&E \| Foreign exchange contracts
Gains/(Losses) related to derivative instruments and hedged items:
Gains/(Losses) on derivative instruments	(130)	(675)	(313)	(422)
Gains/(Losses) related to hedged items	130	675	313	422
OI&E \| Interest rate contracts
Gains/(Losses) related to derivative instruments and hedged items:
Gains/(Losses) on derivative instruments	(32)	57	(650)	1,185
Gains/(Losses) related to hedged items	$ 32	$ (57)	$ 650	$ (1,185)