Short-term Borrowings and Long-term Debt (Details)		3 Months Ended					12 Months Ended
		Dec. 31, 2018 USD ($) Rate		Sep. 30, 2018	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2018 USD ($) Months Years Rate		Dec. 31, 2017 USD ($)		Dec. 31, 2016 USD ($)	Apr. 03, 2018 USD ($)	Jun. 07, 2017 USD ($)	Mar. 21, 2017 USD ($)
Debt Instrument [Line Items]
Debt Issuance Costs, Current, Net		$ (10,000,000)					$ (10,000,000)		$ (11,000,000)
Short-term Borrowings
Total Short-term Borrowings		321,000,000					321,000,000		375,000,000
Long-term Debt
Long-term debt including hedge accounting adjustment		9,751,000,000					9,751,000,000		9,429,000,000
Capital Lease Obligations Excluded from Annual Maturities		71,000,000					71,000,000
Line of Credit Facility [Abstract]
Capital Lease Obligations, Noncurrent		71,000,000					71,000,000		105,000,000
Long-term debt and capital less obligations, including current maturities and debt issuance costs		10,167,000,000					10,167,000,000		9,901,000,000
Debt Issuance Costs, Noncurrent, Net		(85,000,000)					$ (85,000,000)		(86,000,000)
Senior Unsecured Notes [Abstract]
Maturity date							Nov. 01, 2043
Long-term Debt, Current Maturities		331,000,000					$ 331,000,000		386,000,000
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
2016		324,000,000					324,000,000
2017		430,000,000					430,000,000
2018		455,000,000					455,000,000
2019		424,000,000					424,000,000
2020		1,626,000,000					1,626,000,000
Thereafter		6,837,000,000					6,837,000,000
Total		10,096,000,000					10,096,000,000
Interest expense on short-term borrowings and long-term debt							496,000,000		473,000,000		$ 331,000,000
Interest Income (Expense), Net	[1]						$ (452,000,000)		(445,000,000)		(307,000,000)
Senior Unsecured Notes Due November 2037 [Member]
Senior Unsecured Notes [Abstract]
Issuance date	[2]						Oct. 19, 2007
Maturity date							Nov. 15, 2037
Principal amount		$ 325,000,000					$ 325,000,000
Interest rate, stated (in hundredths)		6.88%					6.88%
Interest rate, effective (in hundredths)	[3]	7.45%					7.45%
Senior Unsecured Notes Due September 2019 [Member]
Senior Unsecured Notes [Abstract]
Issuance date	[2]						Aug. 25, 2009
Maturity date							Sep. 15, 2019
Principal amount		$ 250,000,000					$ 250,000,000
Interest rate, stated (in hundredths)		5.30%					5.30%
Interest rate, effective (in hundredths)	[3]	5.59%					5.59%
Senior Unsecured Notes Due November 2020 [Member]
Senior Unsecured Notes [Abstract]
Issuance date	[2]						Aug. 31, 2010
Maturity date							Nov. 01, 2020
Principal amount		$ 350,000,000					$ 350,000,000
Interest rate, stated (in hundredths)		3.88%					3.88%
Interest rate, effective (in hundredths)	[3]	4.01%					4.01%
Senior Unsecured Notes Due November 2021 [Member]
Senior Unsecured Notes [Abstract]
Issuance date	[2]						Aug. 29, 2011
Maturity date							Nov. 01, 2021
Principal amount		$ 350,000,000					$ 350,000,000
Interest rate, stated (in hundredths)		3.75%					3.75%
Interest rate, effective (in hundredths)	[3]	3.88%					3.88%
Senior Unsecured Notes Due November 2023 [Member]
Senior Unsecured Notes [Abstract]
Issuance date	[2]						Oct. 31, 2013
Maturity date							Nov. 01, 2023
Principal amount		$ 325,000,000					$ 325,000,000
Interest rate, stated (in hundredths)		3.88%					3.88%
Interest rate, effective (in hundredths)	[3]	4.01%					4.01%
Senior Unsecured Notes Due November 2043 [Member]
Senior Unsecured Notes [Abstract]
Issuance date	[2]						Oct. 31, 2013
Principal amount		$ 275,000,000					$ 275,000,000
Interest rate, stated (in hundredths)		5.35%					5.35%
Interest rate, effective (in hundredths)	[3]	5.42%					5.42%
Variable Funding Notes [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Interest expense on short-term borrowings and long-term debt									2,000,000
Secured Debt [Member] | The Credit Agreement and Subsidiary Senior Unsecured Notes [Member] [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Payments of Debt Issuance Costs											56,000,000
Secured Debt [Member] | Term Loan A and B Facilities and Revolving Facility [Domain]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Payments of Debt Issuance Costs									32,000,000
Secured Debt [Member] | Term Loan A Facility [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt					$ 500,000,000
Long-term Debt		$ 488,000,000					$ 488,000,000		500,000,000				$ 500,000,000
Senior Unsecured Notes [Abstract]
Maturity date							Jun. 07, 2022
Interest rate, effective (in hundredths) | Rate		3.43%					3.43%
Frequency of interest payments							quarterly
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Payment Terms							amortization payments beginning one full fiscal quarter after the first anniversary of the closing date
Term Loan A Facility, Repayments of Principal in Year Two and Three | Rate							1.25%
Term Loan A Facility, Repayments of Principal in Year Four | Rate							1.875%
Term Loan A, Repayments of Principal in Year Five | Rate							3.75%
Principal assigned to new lenders or existing lenders							$ 146,000,000
Secured Debt [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Line of credit facility, maximum borrowing capacity		$ 1,000,000,000					1,000,000,000
Secured Debt [Member] | Term Loan B Facility [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt					2,000,000,000.0
Long-term Debt		$ 1,955,000,000					$ 1,955,000,000		1,975,000,000			$ 1,970,000,000		$ 1,990,000,000
Amount of basis points Term Loan B interest rate reduced by due to repricing							75
Senior Unsecured Notes [Abstract]
Maturity date							Apr. 03, 2025
Interest rate, effective (in hundredths) | Rate		3.74%					3.74%
Frequency of interest payments							quarterly
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Term Loan B, Repayment of Principal | Rate							0.25%
Principal assigned to new lenders or existing lenders							$ 192,000,000
Interest Income (Expense), Net							$ 5,000,000		8,000,000
Secured Debt [Member] | Term Loan A Facility and Revolving Facility [Member]
Line of Credit Facility [Abstract]
Amount of basis points Term Loan A and Revolving Facility interest rate reduced by due to repricing							75
Secured Debt [Member] | Class A-2 Notes [Member]
Senior Unsecured Notes [Abstract]
Issuance date						May 11, 2016
Maturity date							May 01, 2046
Frequency of interest payments							quarterly
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Payment Terms							no amortization of principal of the Securitization Notes is required prior to their anticipated repayment dates
Long-term Debt, Contingent Payment of Principal or Interest							as of any quarterly measurement date the consolidated leverage ratio (the ratio of total debt to Net Cash Flow (as defined in the Indenture)) for the preceding four fiscal quarters of either the Company and its subsidiaries or the Issuer and its subsidiaries exceeds 5.0:1, in which case amortization payments of 1% per year of the outstanding principal as of the closing of the Securitization Notes is required. As of the most recent quarterly measurement date the consolidated leverage ratio exceeded 5.0:1 and, as a result, amortization payments are required.
Secured Debt [Member] | Revolving Facility [Member]
Debt Instrument [Line Items]
Repayments of Debt							$ 273,000,000
Line of Credit Facility [Abstract]
Line of credit facility, maximum borrowing capacity		$ 1,000,000,000.0					1,000,000,000.0
Outstanding borrowings		0					$ 0
Secured Debt [Member] | the Credit Agreement [Member]
Senior Unsecured Notes [Abstract]
Issuance date				Jun. 16, 2016
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Payment Terms							The Credit Agreement is subject to certain mandatory prepayments, including an amount equal to 50% of excess cash flow (as defined in the Credit Agreement) on an annual basis and the proceeds of certain asset sales, casualty events and issuances of indebtedness, subject to customary exceptions and reinvestment rights.
Debt Instrument, Covenant Compliance							We were in compliance with all debt covenants as of December 31, 2018
Secured Debt [Member] | Securitization Notes [Member]
Short-term Borrowings
Senior Notes, Noncurrent		2,928,000,000					$ 2,928,000,000		2,271,000,000
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Debt Default, Description of Violation or Event of Default							The Securitization Notes are also subject to certain customary events of default, including events relating to non-payment of required interest or principal due on the Securitization Notes, failure to comply with covenants within certain time frames, certain bankruptcy events, breaches of specified representations and warranties, failure of security interests to be effective, certain judgments and failure of the Securitization Entities to maintain a stated debt service coverage ratio
Debt Instrument, Covenant Compliance							As of December 31, 2018, we were in compliance with all of our debt covenant requirements and were not subject to any rapid amortization events
Payments of Debt Issuance Costs							$ 13,000,000				31,000,000
Senior Unsecured Notes [Member]
Senior Unsecured Notes [Abstract]
Number of months until first required interest payment after debt issuance | Months							6
Frequency of interest payments							semi-annually
Senior Unsecured Notes [Member] | Subsidiary Senior Unsecured Notes [Member]
Short-term Borrowings
Senior Notes, Noncurrent		$ 2,850,000,000					$ 2,850,000,000		2,850,000,000
Senior Unsecured Notes [Abstract]
Issuance date				Jun. 16, 2016
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Covenant Compliance							We were in compliance with all debt covenants as of December 31, 2018
Senior Unsecured Notes [Member] | Subsidiary Senior Unsecured Notes due 2024 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt						$ 1,050,000,000.00
Senior Unsecured Notes [Abstract]
Maturity date							Jun. 01, 2024
Interest rate, stated (in hundredths) | Rate		5.00%					5.00%
Interest rate, effective (in hundredths) | Rate		5.16%					5.16%
Senior Unsecured Notes [Member] | Subsidiary Senior Unsecured Notes due 2026 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt						$ 1,050,000,000.00
Senior Unsecured Notes [Abstract]
Maturity date							Jun. 01, 2026
Interest rate, stated (in hundredths) | Rate		5.25%					5.25%
Interest rate, effective (in hundredths) | Rate		5.39%					5.39%
Senior Unsecured Notes [Member] | Subsidiary Senior Unsecured Notes due 2027 [Member]
Senior Unsecured Notes [Abstract]
Maturity date							Jun. 01, 2027
Senior Unsecured Notes [Member] | Subsidiary Senior Unsecured Notes due 2027 [Domain]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt							$ 750,000,000
Senior Unsecured Notes [Abstract]
Interest rate, stated (in hundredths) | Rate		4.75%					4.75%
Interest rate, effective (in hundredths) | Rate		4.90%					4.90%
Frequency of interest payments							semi-annually
Senior Unsecured Notes [Member] | YUM Senior Unsecured Notes [Member] [Domain]
Short-term Borrowings
Senior Notes, Noncurrent		$ 1,875,000,000					$ 1,875,000,000		2,200,000,000
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Debt Default, Description of Violation or Event of Default							Our YUM Senior Unsecured Notes contain cross-default provisions whereby the acceleration of the maturity of any of our indebtedness in a principal amount in excess of $50 million will constitute a default under the YUM Senior Unsecured Notes unless such indebtedness is discharged, or the acceleration of the maturity of that indebtedness is annulled, within 30 days after notice.
London Interbank Offered Rate (LIBOR) [Member] | Secured Debt [Member] | Term Loan B Facility [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Basis Spread on Variable Rate | Rate							2.00%
Debt Instrument, Basis Spread on Variable Rate, Stepdown | Rate							1.75%
Base Rate [Member] | Secured Debt [Member] | Term Loan B Facility [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Basis Spread on Variable Rate | Rate							1.00%
Debt Instrument, Basis Spread on Variable Rate, Stepdown | Rate							0.75%
Minimum [Member] | Senior Unsecured Notes [Member] | YUM Senior Unsecured Notes [Member] [Domain]
Senior Unsecured Notes [Abstract]
Interest rate, stated (in hundredths) | Rate		3.75%					3.75%
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Secured Debt [Member] | Term Loan A Facility and Revolving Facility [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Basis Spread on Variable Rate | Rate							1.25%
Minimum [Member] | Base Rate [Member] | Secured Debt [Member] | Term Loan A Facility and Revolving Facility [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Basis Spread on Variable Rate | Rate							0.25%
Maximum [Member] | Senior Unsecured Notes [Member] | YUM Senior Unsecured Notes [Member] [Domain]
Senior Unsecured Notes [Abstract]
Interest rate, stated (in hundredths) | Rate		6.88%					6.88%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Secured Debt [Member] | Term Loan A Facility and Revolving Facility [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Basis Spread on Variable Rate | Rate							1.75%
Maximum [Member] | Base Rate [Member] | Secured Debt [Member] | Term Loan A Facility and Revolving Facility [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Basis Spread on Variable Rate | Rate							0.75%
Total Leverage Ratio [Member] | Secured Debt [Member] | the Credit Agreement [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Covenant Description							require the Borrowers to maintain a total leverage ratio (defined as the ratio of Consolidated Total Debt to Consolidated EBITDA (as these terms are defined in the Credit Agreement)) of 5.0:1 or less
Fixed Charge Coverage Ratio [Member] | Secured Debt [Member] | the Credit Agreement [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Covenant Description							fixed charge coverage ratio (defined as the ratio of EBITDA minus capital expenditures to fixed charges (inclusive of rental expense and scheduled amortization)) of at least 1.5:1
Debt Service Coverage Ratio - Rapid Amortization Events [Member] | Secured Debt [Member] | Securitization Notes [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Covenant Description							debt service coverage ratio (as defined in the Indenture) of at least 1.1:1
Debt Service Coverage Ratio - Cash Trap Reserve Account [Member] | Secured Debt [Member] | Securitization Notes [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Covenant Description							debt service coverage ratio (or the ratio of Net Cash Flow to all debt service payments for the preceding four fiscal quarters) of at least 1.75:1
Debt Instrument, Covenant Compliance							During the quarter ended December 31, 2018, the Securitization Entities maintained a debt service coverage ratio significantly in excess of the 1.75:1 requirement
Line of Credit [Member] | Variable Funding Notes [Member]
Line of Credit Facility [Abstract]
Line of credit facility, maximum borrowing capacity					100,000,000
Letter of Credit [Member] | Revolving Facility [Member]
Line of Credit Facility [Abstract]
Outstanding letters of credit		$ 7,000,000					$ 7,000,000
Letter of Credit [Member] | Variable Funding Notes [Member]
Line of Credit Facility [Abstract]
Line of credit facility, maximum borrowing capacity					50,000,000
Continuing Operations [Member]
Short-term Borrowings
Total Short-term Borrowings		321,000,000					321,000,000		375,000,000
Long-term Debt
Long-term debt including hedge accounting adjustment		9,751,000,000					9,751,000,000		9,429,000,000
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Payments of Debt Issuance Costs							13,000,000		32,000,000		86,000,000
Interest Income (Expense), Net							(452,000,000)		(445,000,000)		(307,000,000)
Continuing Operations [Member] | Prepaid Expenses and Other Current Assets [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Restricted Cash and Cash Equivalents, Current	[5]	151,000,000	[4]				151,000,000	[4]	$ 60,000,000	[4]	$ 55,000,000
Continuing Operations [Member] | Prepaid Expenses and Other Current Assets [Member] | Securitization Notes [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Restricted Cash and Cash Equivalents, Current		$ 82,000,000					82,000,000
2016 [Member] | Class A-2-I Notes [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Interest expense on short-term borrowings and long-term debt							$ 4,000,000
2016 [Member] | Secured Debt [Member] | Class A-2-I Notes [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt					800,000,000
Senior Unsecured Notes [Abstract]
Interest rate, stated (in hundredths) | Rate		3.832%					3.832%
2016 [Member] | Secured Debt [Member] | Class A-2-II Notes [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt					500,000,000
Senior Unsecured Notes [Abstract]
Interest rate, stated (in hundredths) | Rate		4.377%					4.377%
Interest rate, effective (in hundredths) | Rate		4.59%					4.59%
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Long-term Debt, Anticipated Repayment Date | Years							7
2016 [Member] | Secured Debt [Member] | Class A-2-III Notes [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt					$ 1,000,000,000.0
Senior Unsecured Notes [Abstract]
Interest rate, stated (in hundredths) | Rate		4.97%					4.97%
Interest rate, effective (in hundredths) | Rate		5.14%					5.14%
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Long-term Debt, Anticipated Repayment Date | Years							10
2018 [Member] | Secured Debt [Member] | Term Loan B Facility [Member]
Debt Instrument [Line Items]
Amount of basis points Term Loan B interest rate reduced by due to repricing							25
2018 [Member] | Secured Debt [Member] | Class A-2 Notes [Member]
Senior Unsecured Notes [Abstract]
Maturity date							Nov. 01, 2048
2018 [Member] | Secured Debt [Member] | Class A-2-I Notes [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt		$ 825,000,000
Senior Unsecured Notes [Abstract]
Interest rate, stated (in hundredths) | Rate		4.318%					4.318%
Interest rate, effective (in hundredths) | Rate		4.53%					4.53%
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Long-term Debt, Anticipated Repayment Date | Years							5
2018 [Member] | Secured Debt [Member] | Class A-2-II Notes [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt		$ 625,000,000
Senior Unsecured Notes [Abstract]
Interest rate, stated (in hundredths) | Rate		4.94%					4.94%
Interest rate, effective (in hundredths) | Rate		5.06%					5.06%
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Long-term Debt, Anticipated Repayment Date | Years							10
2018 [Member] | London Interbank Offered Rate (LIBOR) [Member] | Secured Debt [Member] | Term Loan B Facility [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Basis Spread on Variable Rate | Rate							1.75%
2018 [Member] | Base Rate [Member] | Secured Debt [Member] | Term Loan B Facility [Member]
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Debt Instrument, Basis Spread on Variable Rate | Rate							0.75%

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

[2] Interest payments commenced approximately six months after issuance date and are payable semi-annually thereafter.

[3] Includes the effects of the amortization of any (1) premium or discount; (2) debt issuance costs; and (3) gain or loss upon settlement of related treasury locks and forward starting interest rate swaps utilized to hedge the interest rate risk prior to debt issuance.

[4] Increase from 2017 primarily due to the adoption of Topic 606 beginning with the year ended December 31, 2018. See Note 2.

[5] Restricted cash within Prepaid expenses and other current assets reflects the cash related to advertising cooperatives that we consolidate that can only be used to settle obligations of the respective cooperatives and Taco Bell Securitization interest reserves. See Note 10.