Revenue Recognition Accounting Policy (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Total Revenues	$ 1,198	$ 1,310	$ 2,461	$ 2,564
KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	409	584	975	1,150
Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	235	246	470	489
Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	449	480	902	925
Habit Division [Member]
Disaggregation of Revenue [Line Items]
Total Revenues	105	0	114	0
UNITED STATES
Disaggregation of Revenue [Line Items]
Operating Leases, Income Statement, Minimum Lease Revenue	16	17	31	35
UNITED STATES | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Operating Leases, Income Statement, Minimum Lease Revenue	3	5	7	11
UNITED STATES | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Operating Leases, Income Statement, Minimum Lease Revenue	2	1	3	3
UNITED STATES | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Operating Leases, Income Statement, Minimum Lease Revenue	11	11	21	21
UNITED STATES | Habit Division [Member]
Disaggregation of Revenue [Line Items]
Operating Leases, Income Statement, Minimum Lease Revenue	0		0
Other, Outside the U.S. and China [Member]
Disaggregation of Revenue [Line Items]
Operating Leases, Income Statement, Minimum Lease Revenue	11	16	26	35
Other, Outside the U.S. and China [Member] | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Operating Leases, Income Statement, Minimum Lease Revenue	11	16	25	34
Other, Outside the U.S. and China [Member] | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Operating Leases, Income Statement, Minimum Lease Revenue	0	0	1	1
Other, Outside the U.S. and China [Member] | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Operating Leases, Income Statement, Minimum Lease Revenue	0	0	0	0
Other, Outside the U.S. and China [Member] | Habit Division [Member]
Disaggregation of Revenue [Line Items]
Operating Leases, Income Statement, Minimum Lease Revenue	0		0
Product [Member]
Disaggregation of Revenue [Line Items]
Revenues	403	359	758	692
Product [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	316	235	544	452
Product [Member] | UNITED STATES | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	13	18	29	34
Product [Member] | UNITED STATES | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	5	5	10	10
Product [Member] | UNITED STATES | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	194	212	392	408
Product [Member] | UNITED STATES | Habit Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	104		113
Product [Member] | Other, Outside the U.S. and China [Member]
Disaggregation of Revenue [Line Items]
Revenues	87	124	214	240
Product [Member] | Other, Outside the U.S. and China [Member] | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	73	117	187	226
Product [Member] | Other, Outside the U.S. and China [Member] | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	14	6	27	12
Product [Member] | Other, Outside the U.S. and China [Member] | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	1	0	2
Product [Member] | Other, Outside the U.S. and China [Member] | Habit Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	0		0
Franchise [Member]
Disaggregation of Revenue [Line Items]
Revenues	525	633	1,121	1,245
Franchise [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	243	248	474	481
Franchise [Member] | UNITED STATES | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	44	41	82	79
Franchise [Member] | UNITED STATES | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	66	67	128	134
Franchise [Member] | UNITED STATES | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	132	140	263	268
Franchise [Member] | UNITED STATES | Habit Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	1		1
Franchise [Member] | CHINA
Disaggregation of Revenue [Line Items]
Revenues	59	67	116	138
Franchise [Member] | CHINA | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	47	52	94	108
Franchise [Member] | CHINA | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	12	15	22	30
Franchise [Member] | CHINA | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
Franchise [Member] | CHINA | Habit 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	196	285	474	556
Franchise [Member] | Other, Outside the U.S. and China [Member] | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	146	218	358	423
Franchise [Member] | Other, Outside the U.S. and China [Member] | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	46	60	105	120
Franchise [Member] | Other, Outside the U.S. and China [Member] | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	4	7	11	13
Franchise [Member] | Other, Outside the U.S. and China [Member] | Habit Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	0		0
Advertising [Member]
Disaggregation of Revenue [Line Items]
Revenues	270	318	582	627
Advertising [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Revenues	190	190	371	370
Advertising [Member] | UNITED STATES | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	5	3	9	5
Advertising [Member] | UNITED STATES | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	78	78	148	152
Advertising [Member] | UNITED STATES | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	107	109	214	213
Advertising [Member] | UNITED STATES | Habit Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	0		0
Advertising [Member] | Other, Outside the U.S. and China [Member]
Disaggregation of Revenue [Line Items]
Revenues	80	128	211	257
Advertising [Member] | Other, Outside the U.S. and China [Member] | KFC Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	67	114	184	230
Advertising [Member] | Other, Outside the U.S. and China [Member] | Pizza Hut Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	12	14	26	27
Advertising [Member] | Other, Outside the U.S. and China [Member] | Taco Bell Global Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	1	$ 0	1	$ 0
Advertising [Member] | Other, Outside the U.S. and China [Member] | Habit Division [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 0		$ 0