Debt and Other Financing Arrangements - Notes due - Narrative (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2022	Dec. 31, 2020	Dec. 31, 1993
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt	$ 1,145.0	$ 23.0	$ 2.7	$ 0.0
Debt instrument, interest rate, stated percentage	7.25%		7.25%
7.25% Notes due 2023 [Member]
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt					$ 50.0
Debt instrument, interest rate, stated percentage	7.25%		7.25%
Debt instrument maturity period			2023
Frequency of periodic interest payment			Interest on the 7 1/4% Notes is payable semi-annually on June 15 and December 15.
Customary Events of Default Amount for Existing Debt Instruments			$ 20.0