Derivative Instruments (Details) - USD ($) $ in Millions		3 Months Ended	12 Months Ended
		Sep. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Aug. 22, 2019
Term Loan B Facility [Member]
Long-term Debt			$ 1,935
Secured Debt [Member] | Term Loan B Facility [Member]
Long-term Debt	[1]		1,935	$ 1,955
Cross Currency Interest Rate Contract [Member]
Derivative, Cash Received on Hedge		$ 3
Cash Flow Hedging [Member]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			6
Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Derivative, Notional Amount			20	459
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net			$ (8)	(20)	$ 56
Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative, Maturity Date			Jul. 27, 2021
Derivative, Notional Amount			$ 1,550
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net			$ (17)	$ (19)	$ 2
Cash Flow Hedging [Member] | Forward-starting interest rate swap [Member]
Derivative, Maturity Date			Mar. 01, 2025
Derivative, Notional Amount			$ 1,500
Cash Flow Hedging [Member] | Cross Currency Interest Rate Contract [Member]
Derivative, Notional Amount						$ 430
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net		$ 4
Maximum [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Derivative, Maturity Date			Jun. 12, 2020
Minimum [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Derivative, Maturity Date			Feb. 23, 2019
July 2021 through March 2025 [Member] | Fixed Income Interest Rate [Member] | Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivative, Forward Interest Rate			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.