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Income Taxes, Provision for Income Taxes (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
U.S. Federal [Abstract] |  |  |
Current | $ 39.8 | $ 12.2 | $ 1.3
Noncurrent Federal Tax Expense | 35.7 | 122.2 | 0.0
Deferred | (20.1) | (23.7) | (5.4)
Total U.S. Federal | 55.4 | 110.7 | (4.1)
State and Local [Abstract] |  |  |
Current | 12.5 | 5.4 | 8.2
Noncurrent State and Local Tax Expense (Benefit) | 7.5 | 19.1 | 0.0
Deferred | (5.0) | (5.0) | (0.9)
Total State and Local | 15.0 | 19.5 | 7.3
International [Abstract] |  |  |
Current | 145.3 | 141.2 | 105.4
Deferred | (1.4) | (15.1) | 9.2
Total International | 143.9 | 126.1 | 114.6
Total provision for income taxes | $ 214.3 | $ 256.3 | $ 117.8
U.S. federal income tax rate | 21.00% | 35.00% | 35.00%
Increase or decrease in current tax expense from utilization of prior years' net operating loss carryovers | $ 22.2 | $ (3.0) | $ 21.8

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