Stockholders' Deficit (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended		7 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Jul. 25, 2024
Stockholders' Equity Note [Abstract]
Additional share repurchase amount authorized					$ 1,110.0
Remaining common stock available for repurchase	$ 630.1		$ 630.1		388.0
Common stock authorized to repurchase					$ 1,500.0
Treasury Stock, Common, Shares	261.9		261.9
Common stock repurchased	$ 15,290.0		$ 15,290.0
Payments of Dividends			$ 72.1	$ 0.0
Common Stock, Dividends, Per Share, Cash Paid	$ 0.77	$ 0	$ 0.77	$ 0