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Segment Information (Segment and Geographic Information) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	38.00%		38.00%
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee	$ 98.0		$ 233.0
Total revenues	5,887.9	$ 3,761.5	11,012.5	$ 8,475.9
Operating Income	2,691.1	961.1	4,972.4	2,654.7
United States
Segment Reporting Information [Line Items]
Total revenues	2,278.8	1,758.6	4,354.3	3,629.6
Operating Income	1,267.5	735.2	2,393.0	1,627.6
International Operated Markets
Segment Reporting Information [Line Items]
Total revenues	3,078.7	1,612.5	5,634.9	4,016.8
Operating Income	1,272.0	234.8	2,225.8	1,113.9
International Developmental Licensed Markets and Corporate
Segment Reporting Information [Line Items]
Total revenues	530.4	390.4	1,023.3	829.5
Operating Income	$ 151.6	$ (8.9)	$ 353.6	$ (86.8)

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