Derivative Instruments Carrying Amount and Cumulative Basis Adjustment for Fair Value Hedges (Details) - USD ($) $ in Millions	Jun. 29, 2024	Sep. 30, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Hedged Liability, Fair Value Hedge	$ 12,615	$ 12,187
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	(1,322)	(1,753)
Current Portion of Borrowings
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Hedged Liability, Fair Value Hedge	2,869	1,439
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	(42)	(59)
Borrowings
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Hedged Liability, Fair Value Hedge	9,746	10,748
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	$ (1,280)	$ (1,694)