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Components of Income Before Taxes (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Tax Disclosure [Abstract]      
Domestic $ 958.6 $ 921.6 $ 726.7
Foreign 73.1 52.2 47.0
Income before Income Taxes $ 1,031.7 $ 973.8 $ 773.7