Shareholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		1 Months Ended	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Oct. 24, 2024	Oct. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2024	Dec. 31, 2023
Class of Stock [Line Items]
Shares repurchased in period (in shares)					17.5	21.7
Repurchase of common stock amount, including commissions					$ 373.2	$ 340.6
Remaining authorized repurchase amount			$ 651.0		$ 651.0
Quarterly cash dividend paid (per share)			$ 0.13	$ 0.115
Cash dividends			$ 34.2	$ 63.3
Subsequent Event
Class of Stock [Line Items]
Shares repurchased in period (in shares)		2.9
Repurchase of common stock amount, including commissions		$ 72.4
Quarterly cash dividend declared (per share)	$ 0.13