Equity (Schedule of Share Repurchases) (Details) - Class A [Member] - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Dec. 31, 2022	Jan. 01, 2022
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired	4.9	4.2
Payments for Repurchase of Common Stock	$ 313	$ 348
Under share repurchase program
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired	4.7	3.6
Payments for Repurchase of Common Stock	$ 300	$ 300
To fund certain obligations under equity compensation plans
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired	0.2	0.6
Payments for Repurchase of Common Stock	$ 13	$ 48