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Income Taxes (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Income Tax Disclosure [Abstract]    
Unrecognized income tax benefits that would affect effective tax rate $ 237.4 $ 227.9
Unrecognized tax benefits 68.5 64.1
Accrued or deferred taxes relating to uncertain income tax positions 55.2 57.1
Accrued interest and penalties relating to unrecognized tax benefits $ 39.6 $ 39.4