Reportable Operating Segments (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenues		$ 2,068	$ 1,841	$ 4,289	$ 3,767
Operating Profit		193	171	588	467
Interest income, net	[1]	10	4	18	8
Income Before Income Taxes		203	175	606	475
Identifiable Assets		4,730		4,730		$ 4,287
Long-Lived Assets	[2]	2,078		2,078		1,900
KFC [Member]
Segment Reporting Information [Line Items]
Revenues		1,400	1,206	2,898	2,456
Pizza Hut [Member]
Segment Reporting Information [Line Items]
Revenues		528	498	1,093	1,026
All Other Segments [Member]
Segment Reporting Information [Line Items]
Revenues		17	16	37	39
Corporate and Unallocated [Member]
Segment Reporting Information [Line Items]
Revenues	[1]	123	121	261	246
Unallocated revenues from transactions with franchisees and unconsolidated affiliates	[1]	122	121	259	246
Unallocated Other revenues	[1]	1		2
Unallocated expenses from transactions with franchisees and unconsolidated affiliates	[1]	(120)	(118)	(257)	(243)
Unallocated Other operating costs	[1]	(1)		(2)
Unallocated and corporate G&A expenses	[1]	(19)	(50)	(52)	(81)
Unallocated Other income (loss)	[1],[3]	(2)		100	1
Identifiable Assets	[4]	2,218		2,218		1,931
Long-Lived Assets	[2]	56		56		54
Combined [Member]
Segment Reporting Information [Line Items]
Revenues		2,068	1,841	4,289	3,767
Combined [Member] | KFC [Member]
Segment Reporting Information [Line Items]
Revenues		1,400	1,206	2,898	2,456
Operating Profit	[5]	199	182	495	427
Identifiable Assets	[6]	1,760		1,760		1,544
Long-Lived Assets	[2]	1,384		1,384		1,152
Combined [Member] | Pizza Hut [Member]
Segment Reporting Information [Line Items]
Revenues		528	498	1,093	1,026
Operating Profit		20	39	54	119
Identifiable Assets		615		615		668
Long-Lived Assets	[2]	529		529		580
Combined [Member] | All Other Segments [Member]
Segment Reporting Information [Line Items]
Revenues		18	16	38	39
Operating Profit		(7)	(3)	(11)	(2)
Identifiable Assets		137		137		144
Long-Lived Assets	[2]	109		109		$ 114
Elimination [Member]
Segment Reporting Information [Line Items]
Revenues		(1)		(1)
Elimination [Member] | All Other Segments [Member]
Segment Reporting Information [Line Items]
Revenues		(1)		(1)
Combined [Member]
Segment Reporting Information [Line Items]
Revenues		$ 2,069	$ 1,841	$ 4,290	$ 3,767

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

[2] Includes property, plant and equipment, goodwill and intangible assets, net.

[3] Amounts mainly include gain from re-measurement of previously held equity interest in connection with the acquisition of Wuxi KFC. See Note 2.

[4] Primarily includes cash and cash equivalents, short-term investments and inventories that are centrally managed.

[5] Includes equity income from investments in unconsolidated affiliates of $12 million and $14 million for the quarters ended June 30, 2018 and 2017, respectively, and $35 million and $35 million for the years to date ended June 30, 2018 and 2017, respectively.

[6] Includes investments in the unconsolidated affiliates.