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Segment Information (Segment and Geographic Information) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee	$ 106.0		$ 339.0
Total revenues	6,201.3	$ 5,418.1	17,213.8	$ 13,894.0
Operating Income	2,986.5	2,526.4	7,958.9	5,181.1
United States
Segment Reporting Information [Line Items]
Total revenues	2,260.7	2,094.2	6,615.0	5,723.8
Operating Income	1,254.9	1,078.3	3,647.9	2,705.9
International Operated Markets
Segment Reporting Information [Line Items]
Total revenues	3,372.7	2,845.9	9,007.6	6,862.7
Operating Income	1,519.6	1,197.9	3,745.4	2,311.8
International Developmental Licensed Markets and Corporate
Segment Reporting Information [Line Items]
Total revenues	567.9	478.0	1,591.2	1,307.5
Operating Income	$ 212.0	$ 250.2	$ 565.6	$ 163.4

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