Segment Reporting (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Segment Reporting Information [Line Items]
Revenues		$ 2,557	$ 1,754
Operating Profit		342	97
Unallocated Other expenses			(1)
Interest income, net	[1]	15	9
Investment loss	[1]	(12)	(8)
Income Before Income Taxes		345	98
Impairment Charges		3	12
Total Assets		10,837		$ 10,875
Revenue From External Customers [Member]
Segment Reporting Information [Line Items]
Revenues		2,557	1,754
Revenue From External Customers [Member] | KFC [Member]
Segment Reporting Information [Line Items]
Revenues		1,832	1,269
Revenue From External Customers [Member] | Pizza Hut [Member]
Segment Reporting Information [Line Items]
Revenues		541	324
Revenue From External Customers [Member] | All Other Segments [Member]
Segment Reporting Information [Line Items]
Revenues		53	21
Corporate and Unallocated [Member]
Segment Reporting Information [Line Items]
Revenues	[1]	131	140
Unallocated revenues from transactions with franchisees and unconsolidated affiliates	[2]	129	139
Unallocated Other revenues		2	1
Unallocated expenses from transactions with franchisees and unconsolidated affiliates	[2]	(129)	(135)
Unallocated Other operating costs and expenses		(3)	(1)
Unallocated and corporate G&A expenses		(41)	(21)
Total Assets	[3]	5,514		5,507
Corporate and Unallocated [Member] | Revenue From External Customers [Member]
Segment Reporting Information [Line Items]
Revenues	[1]	131	140
Operating Segments [Member] | KFC [Member]
Segment Reporting Information [Line Items]
Revenues		1,832	1,269
Operating Profit	[4]	327	153
Impairment Charges	[5]	2	4
Total Assets	[6]	4,056		4,084
Operating Segments [Member] | Pizza Hut [Member]
Segment Reporting Information [Line Items]
Revenues		541	324
Operating Profit		60	(28)
Impairment Charges	[5]	1	6
Total Assets		888		906
Operating Segments [Member] | All Other Segments [Member]
Segment Reporting Information [Line Items]
Revenues		78	28
Operating Profit		(3)	(10)
Impairment Charges	[5]		2
Total Assets		379		$ 378
Operating Segments [Member] | Revenue From External Customers [Member]
Segment Reporting Information [Line Items]
Revenues		2,557	1,754
Elimination [Member]
Segment Reporting Information [Line Items]
Revenues		(25)	(7)
Elimination [Member] | All Other Segments [Member]
Segment Reporting Information [Line Items]
Revenues		25	7
Combined [Member]
Segment Reporting Information [Line Items]
Revenues		$ 2,582	$ 1,761

[1] Amounts have not been allocated to any segment for performance reporting purposes.

[2] Primarily includes revenues and associated expenses of transactions with franchisees and unconsolidated affiliates derived from the Company’s central procurement model whereby the Company centrally purchases substantially all food and paper products from suppliers and then sells and delivers them to KFC and Pizza Hut restaurants, including franchisees and unconsolidated affiliates. Amounts have not been allocated to any segment for purposes of making operating decisions or assessing financial performance as the transactions are deemed corporate revenues and expenses in nature.

[3] Primarily includes cash and cash equivalents, short-term investments, investment in equity securities, long-term time deposits and inventories that are centrally managed.

[4] Includes equity income from investments in unconsolidated affiliates of $19 million and $20 million for the quarters ended March 31, 2021 and 2020, respectively.

[5] Primarily includes store closure impairment charges, restaurant-level impairment charges resulting from our semi-annual impairment evaluation as well as our additional impairment evaluation performed in the first quarter of 2020 in response to adverse impact from the COVID-19 pandemic. See Note 11.

[6] Includes investments in unconsolidated affiliates.