Revenue Recognition - Schedule of Disaggregation of Revenue by Types of Arrangements and Segments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation Of Revenue [Line Items]
Total revenues	$ 2,128	$ 2,451	$ 4,796	$ 5,008
KFC [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	1,594	1,734	3,611	3,566
Pizza Hut [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	448	538	995	1,079
All Other Segments [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	142	106	305	184
Corporate and Unallocated [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	56	127	123	258
Combined [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	2,240	2,505	5,034	5,087
Elimination [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	(112)	(54)	(238)	(79)
Elimination [Member] | All Other Segments [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	108	54	230	79
Operating Segments [Member] | KFC [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	1,594
Operating Segments [Member] | Pizza Hut [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	448
Operating Segments [Member] | All Other Segments [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	142	106
Company Sales [Member]
Disaggregation Of Revenue [Line Items]
Revenues	2,026	2,233	4,574	4,564
Company Sales [Member] | KFC [Member]
Disaggregation Of Revenue [Line Items]
Revenues	1,571	1,687	3,562	3,470
Company Sales [Member] | Pizza Hut [Member]
Disaggregation Of Revenue [Line Items]
Revenues	443	533	985	1,071
Company Sales [Member] | All Other Segments [Member]
Disaggregation Of Revenue [Line Items]
Revenues	12	13	27	23
Company Sales [Member] | Combined [Member]
Disaggregation Of Revenue [Line Items]
Revenues	2,026	2,233	4,574	4,564
Franchise [Member]
Disaggregation Of Revenue [Line Items]
Revenues	19	38	43	80
Franchise [Member] | KFC [Member]
Disaggregation Of Revenue [Line Items]
Revenues	13	30	29	63
Franchise [Member] | Pizza Hut [Member]
Disaggregation Of Revenue [Line Items]
Revenues	2	2	4	4
Franchise [Member] | All Other Segments [Member]
Disaggregation Of Revenue [Line Items]
Revenues	4	6	10	13
Franchise [Member] | Combined [Member]
Disaggregation Of Revenue [Line Items]
Revenues	19	38	43	80
Transactions With Franchisees and Unconsolidated Affiliates [Member]
Disaggregation Of Revenue [Line Items]
Revenues	62	164	139	335
Transactions With Franchisees and Unconsolidated Affiliates [Member] | KFC [Member]
Disaggregation Of Revenue [Line Items]
Revenues	7	14	15	29
Transactions With Franchisees and Unconsolidated Affiliates [Member] | Pizza Hut [Member]
Disaggregation Of Revenue [Line Items]
Revenues	1	2	2	3
Transactions With Franchisees and Unconsolidated Affiliates [Member] | All Other Segments [Member]
Disaggregation Of Revenue [Line Items]
Revenues	7	23	18	49
Transactions With Franchisees and Unconsolidated Affiliates [Member] | Corporate and Unallocated [Member]
Disaggregation Of Revenue [Line Items]
Revenues	47	125	104	254
Transactions With Franchisees and Unconsolidated Affiliates [Member] | Combined [Member]
Disaggregation Of Revenue [Line Items]
Revenues	62	164	139	335
Other Revenues [Member]
Disaggregation Of Revenue [Line Items]
Revenues	21	16	40	29
Other Revenues [Member] | KFC [Member]
Disaggregation Of Revenue [Line Items]
Revenues	3	3	5	4
Other Revenues [Member] | Pizza Hut [Member]
Disaggregation Of Revenue [Line Items]
Revenues	2	1	4	1
Other Revenues [Member] | All Other Segments [Member]
Disaggregation Of Revenue [Line Items]
Revenues	119	64	250	99
Other Revenues [Member] | Corporate and Unallocated [Member]
Disaggregation Of Revenue [Line Items]
Revenues	9	2	19	4
Other Revenues [Member] | Combined [Member]
Disaggregation Of Revenue [Line Items]
Revenues	133	70	278	108
Other Revenues [Member] | Elimination [Member]
Disaggregation Of Revenue [Line Items]
Revenues	$ (112)	$ (54)	$ (238)	$ (79)