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Segment Information (Segment and Geographic Information) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee			$ 139.0
Document Fiscal Year Focus			2020
Total revenues	$ 5,418.1	$ 5,502.3	$ 13,894.0	$ 15,936.2
Operating Income	2,526.4	2,409.3	5,181.1	6,777.2
United States
Segment Reporting Information [Line Items]
Total revenues	2,094.2	2,028.5	5,723.8	5,959.9
Operating Income	1,078.3	1,038.7	2,705.9	3,039.4
International Operated Markets
Segment Reporting Information [Line Items]
Total revenues	2,845.9	2,986.2	6,862.7	8,573.4
Operating Income	1,197.9	1,284.0	2,311.8	3,550.8
International Developmental Licensed Markets and Corporate
Segment Reporting Information [Line Items]
Total revenues	478.0	487.6	1,307.5	1,402.9
Operating Income	$ 250.2	$ 86.6	$ 163.4	$ 187.0

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