Financial Statement Presentation (Details) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2020 USD ($) countries_and_territiories restaurants Rate		Mar. 31, 2020 USD ($)	[1]	Sep. 30, 2020 USD ($) Months operating_segments countries_and_territiories restaurants Rate	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Number of Reportable Segments | operating_segments					4
Number of Countries in which Entity Operates | countries_and_territiories	150				150
Number of Stores | restaurants	50,000				50,000
Percent Of System Units Located Outside United States | Rate	98.00%				98.00%
Asset Impairment Charges	$ 4		$ 107
Fiscal period months standard for each quarter | Months					3
Retained Earnings (Accumulated Deficit)	(7,490)				$ (7,490)		$ (7,628)
Asset Impairment Charges					156	$ 0
Accounting Standards Update 2016-13 [Member]
Retained Earnings (Accumulated Deficit)	8				8
Goodwill [Member]
Asset Impairment Charges	$ 5	[1]	$ 139		$ 144

[1] (a)    The year to date ended September 30, 2019 includes the settlement of contingent consideration associated with our 2013 acquisition of the KFC Turkey and Pizza Hut Turkey businesses of $8 million.