Summary of Significant Accounting Policies - Reconciliation of Weighted Average Number of Common and Common Equivalent Shares Outstanding and Number of Awards Excluded from Diluted Earnings Per Share (Detail) - shares shares in Millions	12 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 03, 2020
Earnings Per Share [Abstract]
Weighted Average Number of Shares Outstanding, Basic	1,822	1,816	1,808
Weighted average dilutive impact of Awards	5	12	0	[1]
Weighted Average Number of Shares Outstanding, Diluted	1,827	1,828	1,808
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	15	4	35

[1] Amounts exclude all potential common and common equivalent shares for periods when there is a net loss from continuing operations.