Reportable Operating Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Other General Expense	$ 50
Business Combination, Acquisition Related Costs			$ 9
Revenues	1,448	$ 1,339	3,909	$ 3,903
Franchisor Costs	13	43	107	124
Operating Profit	471	480	1,021	1,384
Other investment (income) expense, net	(10)	59	(67)	50
Refranchising (gain) loss	(9)	(8)	(30)	(18)
Other (income) expense	(4)	1	(154)	(5)
Cooperative Advertising Expense	313	325	887	941
General and Administrative Expense	257	208	724	617
Cost of Goods and Services Sold	(399)	(292)	(1,046)	(850)
Other pension income (expense)	(4)	(1)	(9)	(4)
Interest Income (Expense), Net	(161)	(120)	(411)	(354)
Income Before Income Taxes	316	300	668	976
KFC Global Division [Member]
Segment Reporting Information [Line Items]
Revenues	586	609	1,561	1,759
Operating Profit	278	270	655	767
Pizza Hut Global Division [Member]
Segment Reporting Information [Line Items]
Revenues	243	241	713	730
Operating Profit	89	86	252	279
Taco Bell Global Division [Member]
Segment Reporting Information [Line Items]
Revenues	501	489	1,403	1,414
Operating Profit	186	161	484	458
Unallocated [Member]
Segment Reporting Information [Line Items]
Other General Expense	32
Franchisor Costs	0	2	3	5
Refranchising (gain) loss	(9)	(8)	(30)	(18)
Other (income) expense	(4)	(2)	(153)	(11)
General and Administrative Expense	81	41	229	122
Cost of Goods and Services Sold	1	0	0	0
Habit Division [Member]
Segment Reporting Information [Line Items]
Revenues	118	0	232	0
Operating Profit	$ (7)	$ 0	$ (15)	$ 0