Income Taxes - Uncertain Tax Positions (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning balance	$ 396.0	$ 350.5
Positions related to the current year	11.4	18.2
Positions related to prior years	339.0	28.9
Lapse of statutes of limitation	(11.9)	(2.2)
Decrease in prior year positions	(41.9)	(1.0)
Cumulative translation adjustment	(1.3)	(1.6)
Unrecognized tax benefits, ending balance	347.2	$ 396.0
Settlements with taxing authorities	$ (344.1)

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Amount of unrecognized tax benefits.

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Amount of decrease in unrecognized tax benefits resulting from foreign currency translation.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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