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Basis of Presentation and Accounting Policies - Schedule of Estimated Fair Values and Carrying Values of Goodwill (Details) - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
Goodwill [Line Items]    
Carrying values [1] $ 1,710.0 $ 1,722.2
[1] Balances were net of accumulated impairment loss of $644.2 as of both March 31, 2022 and December 31, 2021.