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Income Taxes (Reconciliation of Income Tax Rate) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Tax Disclosure [Abstract] |  |  |
Provision at the U.S. statutory rate of 21% | $ 93.5 | $ 106.7 | $ 98.3
Increase (reduction) in tax expense resulting from: |  |  |
State income tax, net of federal income tax benefit | 10.8 | 13.2 | 15.5
Tax credits, net of unrecognized tax benefits | (7.8) | (13.8) | (2.5)
Change in unrecognized tax benefits | 0.2 | 3.1 | 0.4
Change in valuation allowance | 7.8 | 1.9 | 5.0
Foreign taxes at rates other than U.S. statutory rate | (33.6) | (20.7) | (3.2)
Deemed inclusions | 9.2 | 8.3 | 3.9
global intangible low taxed income | 10.3 | 9.5 | 0.7
Change in rates from the Tax Act & other law changes | 0.7 | (0.8) | 1.9
Excess tax benefits from stock-based compensation | (4.2) | (10.9) | (10.5)
Miscellaneous other | 1.2 | 2.6 | (1.9)
Total provision for income taxes | $ 88.1 | $ 99.1 | $ 107.6

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