Income Taxes (Schedule of Unrecognized Tax Benefits) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 2,108.6	$ 2,034.6	$ 1,000.8
Additions based on tax positions related to the current year	225.6	187.2	798.2
Additions for tax positions of prior years	310.8	425.3	410.9
Reductions for tax positions of prior years	(52.4)	(100.3)	(115.4)
Settlements	(72.0)	(260.5)	(33.2)
Lapses of statutes of limitation	(41.7)	(161.5)	(20.5)
Changes related to the impact of foreign currency translation, increase	73.0
Changes related to the impact of foreign currency translation, decrease		(16.2)	(6.2)
Ending balance	$ 2,551.9	$ 2,108.6	$ 2,034.6

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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Amount of unrecognized tax benefits.

+ References

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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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