Derivative Instruments - Carrying Amount and Cumulative Basis Adjustment for Fair Value Hedges (Details) - USD ($) $ in Millions	Oct. 02, 2021	Oct. 03, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Hedged Liability, Fair Value Hedge	$ 15,641	$ 16,982
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	(98)	509
Current Portion of Borrowings
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Hedged Liability, Fair Value Hedge	505	753
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	5	4
Long-term Portion of Borrowings
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Hedged Liability, Fair Value Hedge	15,136	16,229
Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease)	$ (103)	$ 505

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- Definition

Amount of liability hedged in fair value hedging relationship.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4EE
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4EE
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109999712-113959

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