Derivative Instruments (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Apr. 03, 2018	Dec. 31, 2017
Other investment (income) expense, net	$ (23,000,000)	$ (1,000,000)	$ (89,000,000)	$ (2,000,000)
Secured Debt [Member] | Term Loan B Facility [Member]
Long-term Debt	1,965,000,000		1,965,000,000		$ 1,970,000,000	$ 1,975,000,000	[1]
Cash Flow Hedging [Member]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	20,000,000
Cash Flow Hedging [Member] | Forward-starting interest rate swap [Member]
Derivative, Notional Amount	$ 1,500,000,000		1,500,000,000
Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative, Maturity Date	Jul. 27, 2021
Derivative, Notional Amount	$ 1,550,000,000		1,550,000,000
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net	0
Intercompany receivables and payables [Domain] | Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Derivative, Notional Amount	$ 456,000,000		$ 456,000,000			$ 456,000,000
Fixed Income Interest Rate [Member] | July 2021 through March 2025 [Member] | Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative, Fixed Interest Rate	4.81%		4.81%

[1] We estimated the fair value of the YUM and Subsidiary Senior Unsecured Notes, Term Loan A Facility, and Term Loan B Facility using market quotes and calculations based on market rates.