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Leases - Maturity of Lease Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]    
2022 $ 143.4  
2023 115.8  
2024 98.3  
2025 83.4  
2026 73.3  
Thereafter 207.4  
Total undiscounted cash flows 721.6  
Less: Imputed interest (72.4)  
Lease obligations under operating leases $ 649.2 $ 555.2