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Income Taxes, Provision for Income Taxes (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax Disclosure [Abstract] |  |  |
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions | $ 24.3 | $ 5.0 |
U.S. Federal [Abstract] |  |  |
Current | 38.2 | 39.8 | $ 12.2
Noncurrent Federal Tax Expense | 0.7 | 35.7 | 122.2
Deferred | (12.9) | (20.1) | (23.7)
Total U.S. Federal | 26.0 | 55.4 | 110.7
State and Local [Abstract] |  |  |
Current | 15.1 | 12.5 | 5.4
Noncurrent State and Local Tax Expense (Benefit) | 0.0 | 7.5 | 19.1
Deferred | (7.0) | (5.0) | (5.0)
Total State and Local | 8.1 | 15.0 | 19.5
International [Abstract] |  |  |
Current | 156.9 | 145.3 | 141.2
Deferred | (31.3) | (1.4) | (15.1)
Total International | 125.6 | 143.9 | 126.1
Total provision for income taxes | $ 159.7 | $ 214.3 | $ 256.3
U.S. federal income tax rate | 21.00% | 21.00% | 35.00%
Increase or decrease in current tax expense from utilization of prior years' net operating loss carryovers | $ 0.3 | $ 22.2 | $ (3.0)

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