Equity (Schedule of Share Repurchases) (Details) - Class A [Member] - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jan. 01, 2022	Jan. 02, 2021
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired	4.2	0.3
Payments for Repurchase of Common Stock	$ 348	$ 17
Under share repurchase program
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired	3.6	0.0
Payments for Repurchase of Common Stock	$ 300	$ 0
To fund certain obligations under equity compensation plans
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired	0.6	0.3
Payments for Repurchase of Common Stock	$ 48	$ 17