Debt and Credit Arrangements - Committed Bridge Loan Facility (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
	Nov. 08, 2022	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument
Bridge loan facility fees			$ 26.1	$ 0.0	$ 0.0
Payments of debt issuance costs			$ 136.2	4.7	$ 3.0
Commitment Parties | Bridge Loan
Debt Instrument
Maximum borrowing capacity	$ 3,375.0
Debt instrument, term	364 days
Bridge loan facility fees		$ 26.1		29.5
Payments of debt issuance costs				$ 55.6