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Equity (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended				6 Months Ended
	Jun. 22, 2025	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Equity [Abstract]
Stock Repurchase Program, Authorized Amount		$ 1,000.0				$ 1,000.0
Common Stock, Dividends, Per Share, Declared		$ 0.454	$ 0.454	$ 0.413	$ 0.413
Dividends, Common Stock		$ 22.1	$ 22.1	$ 20.3	$ 20.9
Treasury Stock, Value, Acquired, Cost Method		25.2	25.3	303.0	50.5
Dividends, Preferred Stock		$ (12.9)	$ (14.4)	$ (14.4)	(14.4)
Preferred Stock, Dividends, Per Share, Cash Paid		$ 0.598	$ 0.664	$ 0.664
Dividends Payable [Line Items]
Preferred Stock, Dividends, Per Share, Cash Paid		$ 0.598	$ 0.664	$ 0.664
Preferred Stock, Redemption Price Per Share	$ 25,000
Payments for Repurchase of Preferred Stock and Preference Stock						540.3	$ 0.0
Dividends, Preferred Stock		$ 12.9	$ 14.4	$ 14.4	14.4
Share Repurchase Program, Excise Tax		5.4
Preferred Stock Redemption Discount		$ 27.6		0.0		27.6	0.0
Payments for Repurchase of Preferred Stock and Preference Stock						(540.3)	0.0
Preferred Stock, Redemption Date	Jun. 22, 2025
Stock Redeemed or Called During Period, Shares		21,612
Retained Earnings [Member]
Equity [Abstract]
Dividends, Common Stock		$ 22.1	22.1	20.3	20.9
Dividends, Preferred Stock		(12.9)	(14.4)	(14.4)	(14.4)	(27.3)	(28.7)
Dividends Payable [Line Items]
Dividends, Preferred Stock		$ 12.9	$ 14.4	$ 14.4	$ 14.4	$ 27.3	$ 28.7
6.375% Senior Notes due 2033
Dividends Payable [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.375%				6.375%
Debt Instrument, Interest Rate, Stated Percentage		6.375%				6.375%
O2025Q1Dividends
Dividends Payable [Line Items]
Dividends Payable, Date Declared			Feb. 27, 2025
Dividends Payable, Date of Record			Mar. 14, 2025
Dividends Payable, Date to be Paid			Mar. 31, 2025
Dividends Payable, Date of Record			Mar. 14, 2025
Dividends Payable, Date Declared			Feb. 27, 2025
Dividends Payable, Date to be Paid			Mar. 31, 2025
O2024Q1Dividends
Dividends Payable [Line Items]
Dividends Payable, Date Declared					Feb. 29, 2024
Dividends Payable, Date of Record					Mar. 15, 2024
Dividends Payable, Date to be Paid					Mar. 29, 2024
Dividends Payable, Date of Record					Mar. 15, 2024
Dividends Payable, Date Declared					Feb. 29, 2024
Dividends Payable, Date to be Paid					Mar. 29, 2024
O2025Q2Dividends
Dividends Payable [Line Items]
Dividends Payable, Date Declared		May 29, 2025
Dividends Payable, Date of Record		Jun. 13, 2025
Dividends Payable, Date to be Paid		Jun. 30, 2025
Dividends Payable, Date of Record		Jun. 13, 2025
Dividends Payable, Date Declared		May 29, 2025
Dividends Payable, Date to be Paid		Jun. 30, 2025
O2024Q2Dividends
Dividends Payable [Line Items]
Dividends Payable, Date Declared				May 30, 2024
Dividends Payable, Date of Record				Jun. 14, 2024
Dividends Payable, Date to be Paid				Jun. 28, 2024
Dividends Payable, Date of Record				Jun. 14, 2024
Dividends Payable, Date Declared				May 30, 2024
Dividends Payable, Date to be Paid				Jun. 28, 2024