Short-term Borrowings and Long-term Debt (Details)		3 Months Ended			6 Months Ended		9 Months Ended
		Jun. 30, 2018 USD ($) Rate	Mar. 31, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Sep. 30, 2017	Apr. 03, 2018 USD ($)	Dec. 31, 2017 USD ($)
Short-term Borrowings and Long-term Debt [Line Items]
Capital lease obligations		$ 95,000,000			$ 95,000,000				$ 105,000,000
Long-term debt and capital less obligations, including current maturities and debt issuance costs		9,752,000,000			9,752,000,000				9,901,000,000
Less Debt Issuance Costs, Noncurrent, Net		(89,000,000)			(89,000,000)				(86,000,000)
Less current maturities of long-term debt		(51,000,000)			(51,000,000)				(386,000,000)
Long-term debt		9,612,000,000			9,612,000,000				9,429,000,000
Other		8,000,000			8,000,000				0
Short-term Debt, including debt issuance costs		59,000,000			59,000,000				386,000,000
Short-term borrowings		54,000,000			54,000,000				375,000,000
Less current portion of debt issuance costs and discounts		(5,000,000)			(5,000,000)				(11,000,000)
Interest Income (Expense), Net		(112,000,000)		$ (105,000,000)	(219,000,000)	$ (215,000,000)
Interest Paid, Including Capitalized Interest, Operating and Investing Activities					236,000,000	$ 207,000,000
Unsecured Debt [Member] | Existing [Member]
Short-term Borrowings and Long-term Debt [Line Items]
Senior Notes	[1]	1,875,000,000			1,875,000,000				2,200,000,000
Repayments of Debt			$ 325,000,000
Unsecured Debt [Member] | Subsidiary Senior Unsecured Notes [Member]
Short-term Borrowings and Long-term Debt [Line Items]
Senior Notes	[2]	2,850,000,000			2,850,000,000				2,850,000,000
Secured Debt [Member]
Short-term Borrowings and Long-term Debt [Line Items]
Senior Notes		2,265,000,000			2,265,000,000				2,271,000,000
Secured Debt [Member] | Securitization Notes [Member]
Short-term Borrowings and Long-term Debt [Line Items]
Senior Notes	[3]	2,265,000,000			2,265,000,000				2,271,000,000
Secured Debt [Member] | Term Loan A Facility [Member]
Short-term Borrowings and Long-term Debt [Line Items]
Long-term Debt	[2]	500,000,000			500,000,000				500,000,000
Secured Debt [Member] | Revolving Credit Facility [Member]
Short-term Borrowings and Long-term Debt [Line Items]
Long-term Line of Credit		202,000,000			202,000,000				0
Line of Credit Facility, Maximum Borrowing Capacity		0			0
Secured Debt [Member] | Term Loan B Facility [Member]
Short-term Borrowings and Long-term Debt [Line Items]
Debt Instrument, Maturity Date							Apr. 03, 2025
Long-term Debt		$ 1,965,000,000			$ 1,965,000,000			$ 1,970,000,000	$ 1,975,000,000	[2]
Amount of basis points Term Loan B interest rate reduced by due to repricing		25
London Interbank Offered Rate (LIBOR) [Member] | Secured Debt [Member] | Term Loan B Facility [Member]
Short-term Borrowings and Long-term Debt [Line Items]
Debt Instrument, Basis Spread on Variable Rate | Rate		1.75%
Base Rate [Member] | Secured Debt [Member] | Term Loan B Facility [Member]
Short-term Borrowings and Long-term Debt [Line Items]
Debt Instrument, Basis Spread on Variable Rate | Rate		0.75%

[1] During the first quarter of 2018, we repaid $325 million in YUM Senior Unsecured Notes that matured in March 2018.

[2] 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.

[3] We estimated the fair value of the Securitization Notes by obtaining broker quotes from two separate brokerage firms that are knowledgeable about the Company’s Securitization Notes and, at times, trade these notes. The markets in which the Securitization Notes trade are not considered active markets.