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Changes in Accounting Policies - Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Jan. 01, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Decrease of retained earnings $ (4,626.4) $ (2,661.5)  
Adjustments | Retained earnings      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Decrease of retained earnings     $ 4.8