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Income Taxes - Tax Payments and Refunds (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Total income tax (refunds) payments, net [Line Items] |  |  |
Total income tax refunds, net | $ (39.9) | $ (9.1) | $ (64.0)
U.S. — federal |  |  |
Total income tax (refunds) payments, net [Line Items] |  |  |
Total income tax refunds, net | (44.6) | (45.7) | (103.1)
U.S. — state and local |  |  |
Total income tax (refunds) payments, net [Line Items] |  |  |
Total income tax refunds, net | 1.6 | 0.3 | (1.6)
Non-U.S. |  |  |
Total income tax (refunds) payments, net [Line Items] |  |  |
Total income tax refunds, net | $ 3.1 | $ 36.3 | $ 40.7

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- Definition [Line Items] for Income Tax Refunds, Net [Table] + References No definition available. + Details
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 + Details
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