Stockholder's Equity (Share Repurchase) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Apr. 01, 2022	Mar. 31, 2023	Apr. 01, 2022
Equity, Class of Treasury Stock [Line Items]
Stock repurchased	$ 9.1	$ 418.0	$ 175.3	$ 687.4
Treasury Stock, Shares, Acquired	0.1	3.0	1.9	4.7
Average price of stock repurchased (in dollars per share)	$ (91.08)	$ (138.46)	$ (90.60)	$ (146.03)
Remaining amount authorized fro stock repurchase	$ 2,000.0		$ 2,000.0