Equity (Schedule of Share Repurchases) (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Class of Stock [Line Items]
Payments for Repurchase of Common Stock			$ 34	$ 196
Class A [Member]
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired	0.2	0.8	0.5	2.3
Payments for Repurchase of Common Stock	$ 17	$ 64	$ 34	$ 196
Under share repurchase program | Class A [Member]
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired	0.0	0.7	0.0	1.8
Payments for Repurchase of Common Stock	$ 0	$ 50	$ 0	$ 150
To fund certain obligations under equity compensation plans | Class A [Member]
Class of Stock [Line Items]
Treasury Stock, Shares, Acquired	0.2	0.1	0.5	0.5
Payments for Repurchase of Common Stock	$ 17	$ 14	$ 34	$ 46