Reportable Operating Segments (Details) - USD ($) $ in Millions		3 Months Ended																12 Months Ended
		Dec. 31, 2018		Sep. 30, 2018		Jun. 30, 2018		Mar. 31, 2018		Dec. 31, 2017		Sep. 30, 2017		Jun. 30, 2017		Mar. 31, 2017		Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016
Segment Reporting Information [Line Items]
Total revenues																		$ 5,688				$ 6,356
Operating Profit																		2,296		$ 2,761		1,682
Investment Income, Net																		9		5		2
Other Pension (income) expense	[1],[2]																	(14)		(47)		(32)
Cost of Goods and Services Sold																		1,634
Interest expense, net	[1]																	(452)		(445)		(307)
Depreciation and amortization																		137		253		310
Total Assets		$ 4,130								$ 5,311								4,130		5,311
Long-Lived Assets	[3]	2,004								2,320								2,004		2,320
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest																		1,839		2,274		1,345
General and administrative expenses																		895
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement																				(20)
KFC Global Division [Member]
Segment Reporting Information [Line Items]
Total revenues																		2,644
Operating Profit																		959		981		871
Depreciation and amortization																		58		138		172
Capital Spending																		105		176		216
Total Assets	[4]	1,481								1,791								1,481		1,791
Long-Lived Assets	[3]	868								1,200								868		1,200
Pizza Hut Global Division [Member]
Segment Reporting Information [Line Items]
Total revenues																		988
Operating Profit																		348		341		367
Depreciation and amortization																		10		26		36
Capital Spending																		38		42		69
Total Assets	[4]	701								628								701		628
Long-Lived Assets	[3]	384								311								384		311
Taco Bell Global Division [Member]
Segment Reporting Information [Line Items]
Total revenues																		2,056
Operating Profit																		633		619		595
Depreciation and amortization																		61		82		90
Capital Spending																		85		95		132
Total Assets	[4]	1,074								1,086								1,074		1,086
Long-Lived Assets	[3]	720								778								720		778
Unallocated amounts to segment [Member]
Segment Reporting Information [Line Items]
Franchise and property expenses	[1],[5]																	8		30		24
Corporate expenses	[1],[6]																	(171)		(230)		(280)
Cost of Goods and Services Sold	[1],[7]																	(3)		(10)		0
Revenue from Contract with Customer, Including Assessed Tax	[1],[5]																	0		(5)		(2)
Refranchising gain (loss)	[1]																	540		1,083		163
Other (income) expense	[1],[8]																	(8)		(8)		(8)
Depreciation and amortization																		8		7		12
Capital Spending																		6		5		10
Total Assets	[4],[9]	874								1,806								874		1,806
Long-Lived Assets	[3]	32								31								32		31
U.S.
Segment Reporting Information [Line Items]
Total revenues																		2,900		2,800		3,100
Total Assets		2,000								3,000								2,000		3,000
Continuing Operations [Member]
Segment Reporting Information [Line Items]
Total revenues		1,558		$ 1,391		$ 1,368		$ 1,371		1,577		$ 1,436		$ 1,448		$ 1,417		5,688		5,878		6,356
Operating Profit		741	[10]	$ 553	[10]	$ 449	[10]	$ 553	[10]	1,215	[11]	$ 643	[11]	$ 419	[11]	$ 484	[11]	2,296	[10]	2,761	[11]	1,682
Other Pension (income) expense																		(14)		(47)		(32)
Cost of Goods and Services Sold																		1,634		2,954		3,489
Other (income) expense																		(7)		(10)		(18)
Interest expense, net																		(452)		(445)		(307)
Depreciation and amortization																		137		253		310
Capital Spending																		234		318		427
Total Assets		$ 4,130								$ 5,311								4,130		5,311
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest																		1,839		2,274		1,345
General and administrative expenses																		895		999		1,129
Loss associated with corporate aircraft	[12]																	0		2		9
Continuing Operations [Member] | KFC Global Division [Member]
Segment Reporting Information [Line Items]
Total revenues	[4]																	2,644		3,110		3,225
Continuing Operations [Member] | Pizza Hut Global Division [Member]
Segment Reporting Information [Line Items]
Total revenues	[4]																	988		893		1,108
Continuing Operations [Member] | Taco Bell Global Division [Member]
Segment Reporting Information [Line Items]
Total revenues	[4]																	2,056		1,880		2,025
General and Administrative Expense [Member] | Unallocated amounts to segment [Member]
Segment Reporting Information [Line Items]
Restructuring and Related Cost, Incurred Cost																		8		21
Costs associated with PH U.S. Acceleration Agreement																				13
Other Nonoperating Income (Expense) [Member]
Segment Reporting Information [Line Items]
Loss associated with corporate aircraft																				2
U.S. Pension Plans [Member]
Segment Reporting Information [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	[13]																	0		19		32
U.S. Pension Plans [Member] | Other pension (income) expense [Member]
Segment Reporting Information [Line Items]
Pension data adjustment																		0		22	[14]	0
U.S. Pension Plans [Member] | Deferred Vested Project [Member]
Segment Reporting Information [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	[13]																					24
Executive Income Deferral Plan [Member] | Mark-to-Market of YUM China Funds [Member]
Segment Reporting Information [Line Items]
General and administrative expenses																		3		18		$ 30
Executive Income Deferral Plan [Member] | Mark-to-Market of YUM China Funds [Member] | Unallocated amounts to segment [Member]
Segment Reporting Information [Line Items]
General and administrative expenses																		$ 3		$ 18

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

[2] Amounts in 2017 include a non-cash charge of $22 million related to the adjustment of certain historical deferred vested liability balances in our qualified U.S. plan. See Note 5.

[3] Includes PP&E, goodwill, and intangible assets, net.

[4] U.S. revenues included in the combined KFC, Pizza Hut and Taco Bell Divisions totaled $2.9 billion in 2018, $2.8 billion in 2017 and $3.1 billion in 2016.

[5] Represents costs associated with the KFC U.S. Acceleration Agreement and Pizza Hut U.S. Transformation Agreement. See Note 5.

[6] Amounts in 2018 include costs related to YUM's Strategic Transformation Initiatives of $8 million, partially offset by non-cash credits associated with modifications of share-based compensation awards of $3 million. Amounts in 2017 include costs related to YUM’s Strategic Transformation Initiatives of $21 million, non-cash charges associated with modifications of share-based compensation awards of $18 million and costs associated with the Pizza Hut U.S. Transformation Agreement of $13 million. See Note 5.

[7] Represents depreciation reductions arising primarily from KFC restaurants that were held-for-sale. See Note 5.

[8] Amounts include losses associated with the sale of corporate aircraft related to YUM’s Strategic Transformation Initiatives of $2 million in 2017. See Note 7.

[9] Primarily includes cash, our Grubhub investment and deferred tax assets.

[10] Includes net gains from refranchising initiatives of $156 million, $29 million, $100 million and $255 million in the first, second, third and fourth quarters, respectively.

[11] Includes net gains from refranchising initiatives of $111 million, $19 million, $201 million and $752 million in the first, second, third and fourth quarters, respectively.

[12] During 2016, we made the decision to no longer operate a corporate aircraft fleet and offered our owned aircraft for sale, one of which was sold during 2016 and one that was sold in 2017. The losses associated with these sales reflect the shortfall of the proceeds, including estimated proceeds in held-for-sale impairment evaluations, less any selling costs, over the carrying value of the aircraft.

[13] Settlement losses result when benefit payments exceed the sum of the service cost and interest cost within a plan during the year. These losses were recorded in Other pension (income) expense.

[14] Reflects a non-cash, out-of-year charge related to the adjustment of certain historical deferred vested liability balances in the Plan during the first quarter of 2017 recorded in Other pension (income) expense. See Note 5.