Revenue Recognition Accounting Policy (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Total Revenues	$ 1,368	$ 1,448	$ 2,739	$ 2,865
KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	651	770	1,309	1,502
Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	233	222	484	456
Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	484	456	946	907
Product [Member]
Disaggregation of Revenue [Line Items]
Revenues	512	909	1,024	1,811
Product [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	279		552
Product [Member] | UNITED STATES | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	16		33
Product [Member] | UNITED STATES | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	11		25
Product [Member] | UNITED STATES | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	252		494
Product [Member] | Other, Outside the U.S. and China [Member]
Disaggregation of Revenue [Line Items]
Revenues	233		472
Product [Member] | Other, Outside the U.S. and China [Member] | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	225		453
Product [Member] | Other, Outside the U.S. and China [Member] | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	7		17
Product [Member] | Other, Outside the U.S. and China [Member] | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	1		2
Franchise [Member]
Disaggregation of Revenue [Line Items]
Revenues	584	539	1,168	1,054
Franchise [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	238		474
Franchise [Member] | UNITED STATES | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	45		89
Franchise [Member] | UNITED STATES | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	64		134
Franchise [Member] | UNITED STATES | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	129		251
Franchise [Member] | CHINA
Disaggregation of Revenue [Line Items]
Revenues	64		134
Franchise [Member] | CHINA | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	49		103
Franchise [Member] | CHINA | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	15		31
Franchise [Member] | CHINA | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	0		0
Franchise [Member] | Other, Outside the U.S. and China [Member]
Disaggregation of Revenue [Line Items]
Revenues	282		560
Franchise [Member] | Other, Outside the U.S. and China [Member] | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	216		425
Franchise [Member] | Other, Outside the U.S. and China [Member] | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	61		124
Franchise [Member] | Other, Outside the U.S. and China [Member] | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	5		11
Advertising [Member]
Disaggregation of Revenue [Line Items]
Revenues	272	$ 0	547	$ 0
Advertising [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	159		317
Advertising [Member] | UNITED STATES | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	2		4
Advertising [Member] | UNITED STATES | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	60		125
Advertising [Member] | UNITED STATES | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	97		188
Advertising [Member] | Other, Outside the U.S. and China [Member]
Disaggregation of Revenue [Line Items]
Revenues	113		230
Advertising [Member] | Other, Outside the U.S. and China [Member] | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	98		202
Advertising [Member] | Other, Outside the U.S. and China [Member] | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	15		28
Advertising [Member] | Other, Outside the U.S. and China [Member] | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 0		$ 0