Compensation Expense Related to Stock Options, Stock Appreciation Rights and Restricted Stock Units (Details) - USD ($) $ in Millions		3 Months Ended
		Jan. 02, 2021	Dec. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options		$ 25	$ 21
RSUs		109	94
Total equity-based compensation expense	[1]	134	115
Equity-based compensation expense capitalized during the period		$ 34	$ 24

[1] Equity-based compensation expense is net of capitalized equity-based compensation and estimated forfeitures and excludes amortization of previously capitalized equity-based compensation costs.