Goodwill and Intangible Assets (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2015
Goodwill [Line Items]
Goodwill, gross		$ 461	$ 490	$ 467
Accumulated impairment losses		(382)	(382)	(382)
Disposals and other, net	[1]			(6)
Goodwill, net		79	108
Goodwill acquired and allocated		23
Effect of currency translation adjustment		6
KFC [Member]
Goodwill [Line Items]
Goodwill, gross		70	80	75
Disposals and other, net	[1]			(5)
Goodwill, net		70	80
Goodwill acquired and allocated		5
Effect of currency translation adjustment		5
Pizza Hut [Member]
Goodwill [Line Items]
Goodwill, gross		9	19	10
Disposals and other, net	[1]			(1)
Goodwill, net		9	19
Goodwill acquired and allocated		9
Effect of currency translation adjustment		1
All Other Segments [Member]
Goodwill [Line Items]
Goodwill, gross	[2]	382	391	382
Accumulated impairment losses	[2]	(382)	(382)	$ (382)
Goodwill, net	[2]		$ 9
Goodwill acquired and allocated	[2]	$ 9

[1] Disposals and other, net includes the impact of foreign currency translation on existing balances and goodwill write-offs associated with refranchising.

[2] Accumulated impairment losses represent Little Sheep goodwill related impairment.