Adjustments Related to Fair Value Hedges Included in Net Interest Expense in Condensed Consolidated Statements of Income (Details) - Interest rate - Interest Expense - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on pay-floating swaps	$ (577)	$ 542	$ (724)	$ 429
Gain (loss) on hedged borrowings	577	(542)	724	(429)
Derivative, Gain (Loss) on Derivative, Net	$ 36	$ (7)	$ 71	$ (19)

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 the increase (decrease) in fair value of the hedged item in a fair value hedge recognized in the income statement.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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