Revenue Recognition Accounting Policy (Details 4) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue	$ 414		$ 414		$ 441
Revenues	1,448	$ 1,339	3,909	$ 3,903
1 year [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Recognized	64		64
2 years [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Recognized	59		59
3 years [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Recognized	54		54
4 years [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Recognized	49		49
5 years [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Recognized	43		43
Thereafter 5 years [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Deferred Revenue, Revenue Recognized	145		145
Product [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	486	364	1,244	1,056
Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	639	645	1,760	1,890
Advertising [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	323	330	905	957
UNITED STATES | Product [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	355	238	899	690
UNITED STATES | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	254	245	728	726
UNITED STATES | Advertising [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	197	187	568	557
China Division [Member] | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	71	73	187	211
Other, Outside the U.S. and China [Member] | Product [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	131	126	345	366
Other, Outside the U.S. and China [Member] | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	281	293	755	849
Other, Outside the U.S. and China [Member] | Advertising [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	126	143	337	400
Pizza Hut Global Division [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	243	241	713	730
Pizza Hut Global Division [Member] | UNITED STATES | Product [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	5	5	15	15
Pizza Hut Global Division [Member] | UNITED STATES | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	62	63	190	197
Pizza Hut Global Division [Member] | UNITED STATES | Advertising [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	76	71	224	223
Pizza Hut Global Division [Member] | China Division [Member] | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	15	16	37	46
Pizza Hut Global Division [Member] | Other, Outside the U.S. and China [Member] | Product [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	15	8	42	20
Pizza Hut Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	55	61	160	181
Pizza Hut Global Division [Member] | Other, Outside the U.S. and China [Member] | Advertising [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	13	14	39	41
Taco Bell Global Division [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	501	489	1,403	1,414
Taco Bell Global Division [Member] | UNITED STATES | Product [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	218	216	610	624
Taco Bell Global Division [Member] | UNITED STATES | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	148	142	411	410
Taco Bell Global Division [Member] | UNITED STATES | Advertising [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	117	114	331	327
Taco Bell Global Division [Member] | China Division [Member] | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	0	0	0	0
Taco Bell Global Division [Member] | Other, Outside the U.S. and China [Member] | Product [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	0	0	0	2
Taco Bell Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	7	6	18	19
Taco Bell Global Division [Member] | Other, Outside the U.S. and China [Member] | Advertising [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	1	1	2	1
KFC Global Division [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	586	609	1,561	1,759
KFC Global Division [Member] | UNITED STATES | Product [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	14	17	43	51
KFC Global Division [Member] | UNITED STATES | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	44	40	126	119
KFC Global Division [Member] | UNITED STATES | Advertising [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	4	2	13	7
KFC Global Division [Member] | China Division [Member] | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	56	57	150	165
KFC Global Division [Member] | Other, Outside the U.S. and China [Member] | Product [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	116	118	303	344
KFC Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	219	226	577	649
KFC Global Division [Member] | Other, Outside the U.S. and China [Member] | Advertising [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenues	$ 112	$ 128	$ 296	$ 358