Revenue Recognition Accounting Policy (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues	$ 1,708	$ 1,640	$ 5,040	$ 4,823
Company Sales
Revenues	510	479	1,495	1,448
Franchise and property revenues
Revenues	796	760	2,351	2,211
Franchise contributions for advertising and other services
Revenues	402	401	1,194	1,164
UNITED STATES | Company Sales
Revenues	408	383	1,201	1,142
UNITED STATES | Franchise and property revenues
Revenues	309	285	915	843
UNITED STATES | Property Revenues
Revenues	15	16	44	45
UNITED STATES | Franchise contributions for advertising and other services
Revenues	233	216	690	638
CHINA | Franchise and property revenues
Revenues	84	78	245	216
Other, Outside the U.S. and China [Member] | Company Sales
Revenues	102	96	294	306
Other, Outside the U.S. and China [Member] | Franchise and property revenues
Revenues	376	366	1,108	1,064
Other, Outside the U.S. and China [Member] | Property Revenues
Revenues	12	15	39	43
Other, Outside the U.S. and China [Member] | Franchise contributions for advertising and other services
Revenues	169	185	504	526
KFC Global Division [Member]
Revenues	700	704	2,069	2,041
KFC Global Division [Member] | UNITED STATES | Company Sales
Revenues	15	16	48	47
KFC Global Division [Member] | UNITED STATES | Franchise and property revenues
Revenues	48	47	143	139
KFC Global Division [Member] | UNITED STATES | Property Revenues
Revenues	4	4	10	10
KFC Global Division [Member] | UNITED STATES | Franchise contributions for advertising and other services
Revenues	9	7	25	20
KFC Global Division [Member] | CHINA | Franchise and property revenues
Revenues	66	61	193	170
KFC Global Division [Member] | Other, Outside the U.S. and China [Member] | Company Sales
Revenues	102	96	294	306
KFC Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise and property revenues
Revenues	296	291	870	834
KFC Global Division [Member] | Other, Outside the U.S. and China [Member] | Property Revenues
Revenues	12	15	38	42
KFC Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise contributions for advertising and other services
Revenues	148	167	448	473
Pizza Hut Global Division [Member]
Revenues	242	237	738	716
Pizza Hut Global Division [Member] | UNITED STATES | Company Sales
Revenues	2	4	11	14
Pizza Hut Global Division [Member] | UNITED STATES | Franchise and property revenues
Revenues	64	65	200	193
Pizza Hut Global Division [Member] | UNITED STATES | Property Revenues
Revenues	1	1	3	3
Pizza Hut Global Division [Member] | UNITED STATES | Franchise contributions for advertising and other services
Revenues	72	72	224	216
Pizza Hut Global Division [Member] | CHINA | Franchise and property revenues
Revenues	18	17	52	46
Pizza Hut Global Division [Member] | Other, Outside the U.S. and China [Member] | Company Sales
Revenues	0	0	0	0
Pizza Hut Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise and property revenues
Revenues	67	62	198	195
Pizza Hut Global Division [Member] | Other, Outside the U.S. and China [Member] | Property Revenues
Revenues	0	0	1	1
Pizza Hut Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise contributions for advertising and other services
Revenues	18	16	49	48
Taco Bell Global Division [Member]
Revenues	629	568	1,822	1,671
Taco Bell Global Division [Member] | UNITED STATES | Company Sales
Revenues	256	234	738	691
Taco Bell Global Division [Member] | UNITED STATES | Franchise and property revenues
Revenues	196	173	568	508
Taco Bell Global Division [Member] | UNITED STATES | Property Revenues
Revenues	9	10	29	31
Taco Bell Global Division [Member] | UNITED STATES | Franchise contributions for advertising and other services
Revenues	152	136	440	401
Taco Bell Global Division [Member] | CHINA | Franchise and property revenues
Revenues	0	0	0	0
Taco Bell Global Division [Member] | Other, Outside the U.S. and China [Member] | Company Sales
Revenues	0	0	0	0
Taco Bell Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise and property revenues
Revenues	13	13	40	35
Taco Bell Global Division [Member] | Other, Outside the U.S. and China [Member] | Property Revenues
Revenues	0	0	0	0
Taco Bell Global Division [Member] | Other, Outside the U.S. and China [Member] | Franchise contributions for advertising and other services
Revenues	3	2	7	5
Habit Division [Member]
Revenues	137	131	411	395
Habit Division [Member] | UNITED STATES | Company Sales
Revenues	135	129	404	390
Habit Division [Member] | UNITED STATES | Franchise and property revenues
Revenues	1	0	4	3
Habit Division [Member] | UNITED STATES | Property Revenues
Revenues	1	1	2	1
Habit Division [Member] | UNITED STATES | Franchise contributions for advertising and other services
Revenues	0	1	1	1
Habit Division [Member] | CHINA | Franchise and property revenues
Revenues	0	0	0	0
Habit Division [Member] | Other, Outside the U.S. and China [Member] | Company Sales
Revenues	0	0	0	0
Habit Division [Member] | Other, Outside the U.S. and China [Member] | Franchise and property revenues
Revenues	0	0	0	0
Habit Division [Member] | Other, Outside the U.S. and China [Member] | Property Revenues
Revenues	0	0	0	0
Habit Division [Member] | Other, Outside the U.S. and China [Member] | Franchise contributions for advertising and other services
Revenues	$ 0	$ 0	$ 0	$ 0