Short-term Borrowings and Long-term Debt (Details) - USD ($) $ in Millions			12 Months Ended
		Apr. 01, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Sep. 25, 2020
Debt Instrument [Line Items]
Long-term Debt and Lease Obligation, Current			$ (463.0)	$ (437.0)
Debt Issuance Costs, Current, Net			(10.0)	(10.0)
Short-term Borrowings
Total Short-term Borrowings			453.0	431.0
Long-term Debt
Long-term debt including hedge accounting adjustment			10,272.0	10,131.0
Capital Lease Obligations Excluded from Annual Maturities			72.0
Line of Credit Facility [Abstract]
Capital Lease Obligations, Noncurrent			72.0	77.0
Long-term debt and capital less obligations, excluding current maturities and debt issuance costs			10,813.0	10,648.0
Debt Issuance Costs, Noncurrent, Net			(78.0)	(80.0)
Senior Unsecured Notes [Abstract]
Long-term Debt, Current Maturities			463.0	441.0
Other Short-term Borrowings			0.0	4.0
Restricted Cash and Cash Equivalents, Current			258.0	138.0
Payments of Debt Issuance Costs			20.0	10.0	$ 13.0
Interest expense, net	[1]		$ (543.0)	(486.0)	(452.0)
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed			102.50%
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net			$ 88.0
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
2016			455.0
2017			424.0
2018			1,626.0
2019			36.0
2020			2,452.0
Thereafter			5,748.0
Total			10,741.0
Interest expense on short-term borrowings and long-term debt			558.0	519.0	496.0
Revolving credit facilities, three months or less, net			$ 0.0	0.0	0.0
Senior Unsecured Notes Due November 2037 [Member]
Senior Unsecured Notes [Abstract]
Maturity date			Nov. 15, 2037
Interest rate, stated (in hundredths)			6.88%
Interest rate, effective (in hundredths)			7.45%
Debt Instrument, Face Amount			$ 325.0
Issuance date			Oct. 19, 2007
Senior Unsecured Notes Due November 2021 [Member]
Senior Unsecured Notes [Abstract]
Maturity date			Nov. 01, 2021
Interest rate, stated (in hundredths)			3.75%
Interest rate, effective (in hundredths)			3.88%
Debt Instrument, Face Amount			$ 350.0
Issuance date			Aug. 29, 2011
Senior Unsecured Notes Due November 2023 [Member]
Senior Unsecured Notes [Abstract]
Maturity date			Nov. 01, 2023
Interest rate, stated (in hundredths)			3.88%
Interest rate, effective (in hundredths)			4.01%
Debt Instrument, Face Amount			$ 325.0
Issuance date			Oct. 31, 2013
Senior Unsecured Notes Due November 2043 [Member]
Senior Unsecured Notes [Abstract]
Maturity date			Nov. 01, 2043
Interest rate, stated (in hundredths)			5.35%
Interest rate, effective (in hundredths)			5.42%
Debt Instrument, Face Amount			$ 275.0
Issuance date			Oct. 31, 2013
Senior Unsecured Notes Due January 2030 [Member]
Senior Unsecured Notes [Abstract]
Maturity date			Jan. 15, 2030
Interest rate, stated (in hundredths)			4.75%
Interest rate, effective (in hundredths)			4.90%
Debt Instrument, Face Amount			$ 800.0
Issuance date			Sep. 11, 2019
Term Loan A Facility [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 431.0
Senior Unsecured Notes [Abstract]
Maturity date			Jun. 07, 2022
Issuance date			Jun. 16, 2016
Term Loan B Facility [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 1,916.0
Senior Unsecured Notes [Abstract]
Maturity date			Apr. 03, 2025
Issuance date			Jun. 16, 2016
Subsidiary Senior Unsecured Notes due 2026 [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 1,050.0
Senior Unsecured Notes [Abstract]
Maturity date			May 31, 2026
Interest rate, stated (in hundredths)			5.25%
Issuance date			Jun. 15, 2016
Subsidiary Senior Unsecured Notes due 2027 [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 750.0
Senior Unsecured Notes [Abstract]
Maturity date			May 31, 2027
Interest rate, stated (in hundredths)			4.75%
Issuance date			Jun. 15, 2017
Senior Unsecured Notes Due April 2025
Senior Unsecured Notes [Abstract]
Maturity date			Apr. 01, 2025
Interest rate, stated (in hundredths)			7.75%
Interest rate, effective (in hundredths)			8.05%
Debt Instrument, Face Amount			$ 600.0
Payments of Debt Issuance Costs			$ 7.0
Issuance date			Apr. 01, 2020
Senior Unsecured Notes Due March 2031
Senior Unsecured Notes [Abstract]
Maturity date			Mar. 15, 2031
Interest rate, stated (in hundredths)			3.63%
Interest rate, effective (in hundredths)			3.77%
Debt Instrument, Face Amount			$ 1,050.0
Payments of Debt Issuance Costs			$ 13.0
Issuance date			Sep. 25, 2020
Secured Debt [Member] | Class A-2-II Notes [Member] | 2016 [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 483.0
Senior Unsecured Notes [Abstract]
Maturity date			May 25, 2023
Interest rate, stated (in hundredths)			4.377%
Interest rate, effective (in hundredths)			4.59%
Issuance date			May 11, 2016
Secured Debt [Member] | Class A-2-II Notes [Member] | 2018 [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 613.0
Senior Unsecured Notes [Abstract]
Maturity date			Nov. 25, 2028
Interest rate, stated (in hundredths)			4.94%
Interest rate, effective (in hundredths)			5.06%
Issuance date			Nov. 28, 2018
Secured Debt [Member] | Term Loan A Facility [Member]
Debt Instrument [Line Items]
Long-term Debt	[2]		$ 431.0	463.0
Senior Unsecured Notes [Abstract]
Interest rate, effective (in hundredths)	[3]		3.22%
Frequency of interest payments			quarterly
Term Loan A Facility, Repayments of Principal in Year Four			1.875%
Annual maturities of short-term borrowings and long-term debt excluding capital lease obligations and derivative instrument adjustments [Abstract]
Term Loan A, Repayments of Principal in Year Five			3.75%
Secured Debt [Member] | Term Loan B Facility [Member]
Debt Instrument [Line Items]
Long-term Debt	[2]		$ 1,916.0	1,935.0
Senior Unsecured Notes [Abstract]
Interest rate, effective (in hundredths)	[3]		3.53%
Frequency of interest payments			quarterly
Term Loan B, Repayment of Principal			0.25%
Secured Debt [Member] | Revolving Facility [Member]
Line of Credit Facility [Abstract]
Line of credit facility, maximum borrowing capacity			$ 1,000.0
Secured Debt [Member] | the Credit Agreement [Member]
Senior Unsecured Notes [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, 2020
Secured Debt [Member] | Class A-2-I Notes [Member] | 2018 [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 808.0
Senior Unsecured Notes [Abstract]
Maturity date			Nov. 25, 2023
Interest rate, stated (in hundredths)			4.318%
Interest rate, effective (in hundredths)			4.53%
Issuance date			Nov. 28, 2018
Secured Debt [Member] | Class A-2-III Notes [Member] | 2016 [Member]
Debt Instrument [Line Items]
Long-term Debt			$ 965.0
Senior Unsecured Notes [Abstract]
Maturity date			May 25, 2026
Interest rate, stated (in hundredths)			4.97%
Interest rate, effective (in hundredths)			5.14%
Issuance date			May 11, 2016
Secured Debt [Member] | Securitization Notes [Member]
Short-term Borrowings
Senior Notes, Noncurrent	[4]		$ 2,869.0	2,898.0
Senior Unsecured Notes [Abstract]
Frequency of interest payments			quarterly
Debt Instrument, Payment Terms			no amortization of principal of the Securitization Notes is required prior to their anticipated repayment dates
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, 2020, we were in compliance with all of our debt covenant requirements and were not subject to any rapid amortization events
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 related 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 are required. As of the most recent quarterly measurement date the consolidated leverage ratio for both the Company and its subsidiaries as well as the Issuer and its subsidiaries exceeded 5.0:1 and, as a result, amortization payments are required.
Secured Debt [Member] | Class A-2 Notes [Member] | 2016 [Member]
Senior Unsecured Notes [Abstract]
Maturity date			May 01, 2046
Secured Debt [Member] | Class A-2 Notes [Member] | 2018 [Member]
Senior Unsecured Notes [Abstract]
Maturity date			Nov. 01, 2048
Senior Unsecured Notes [Member] | Subsidiary Senior Unsecured Notes [Member]
Short-term Borrowings
Senior Notes, Noncurrent	[2]		$ 1,800.0	2,850.0
Senior Unsecured Notes [Abstract]
Interest rate, stated (in hundredths)			5.00%
Debt Instrument, Covenant Compliance			We were in compliance with all debt covenants as of December 31, 2020
Repayments of Debt, Maturing in More than Three Months			$ 1,050.0
Gain (Loss) on Extinguishment of Debt			26.0
Write off of Deferred Debt Issuance Cost			6.0
Senior Unsecured Notes [Member] | Subsidiary Senior Unsecured Notes [Member] | Interest Expense [Member]
Senior Unsecured Notes [Abstract]
Gain (Loss) on Extinguishment of Debt			$ 2.0
Senior Unsecured Notes [Member] | Subsidiary Senior Unsecured Notes due 2026 [Member]
Senior Unsecured Notes [Abstract]
Interest rate, effective (in hundredths)	[3]		5.39%
Senior Unsecured Notes [Member] | Subsidiary Senior Unsecured Notes due 2027 [Member]
Senior Unsecured Notes [Abstract]
Interest rate, effective (in hundredths)	[3]		4.90%
Senior Unsecured Notes [Member] | YUM Senior Unsecured Notes [Member]
Short-term Borrowings
Senior Notes, Noncurrent	[2]		$ 3,725.0	2,425.0
Senior Unsecured Notes [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 ($100 million or more in the case of the 2025 Notes, the 2030 Notes and the 2031 Notes) 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
Senior Unsecured Notes [Member] | Unsecured Notes Due April 2025 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt		$ 600.0
Senior Unsecured Notes [Abstract]
Interest rate, stated (in hundredths)		7.75%
Senior Unsecured Notes [Member] | Unsecured Notes Due March 2031 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt		$ 1,050.0
Senior Unsecured Notes [Abstract]
Interest rate, stated (in hundredths)						3.625%
London Interbank Offered Rate (LIBOR) [Member] | Secured Debt [Member] | Term Loan A and B Facilities and Revolving Facility [Domain]
Senior Unsecured Notes [Abstract]
Debt Instrument, Basis Spread on Variable Rate			1.25%
London Interbank Offered Rate (LIBOR) [Member] | Secured Debt [Member] | Term Loan B Facility [Member]
Senior Unsecured Notes [Abstract]
Debt Instrument, Basis Spread on Variable Rate			1.75%
Base Rate [Member] | Secured Debt [Member] | Term Loan A and B Facilities and Revolving Facility [Domain]
Senior Unsecured Notes [Abstract]
Debt Instrument, Basis Spread on Variable Rate			0.25%
Base Rate [Member] | Secured Debt [Member] | Term Loan B Facility [Member]
Senior Unsecured Notes [Abstract]
Debt Instrument, Basis Spread on Variable Rate			0.75%
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Secured Debt [Member] | Term Loan A Facility and Revolving Facility [Member]
Senior Unsecured Notes [Abstract]
Debt Instrument, Basis Spread on Variable Rate			1.25%
Minimum [Member] | Base Rate [Member] | Secured Debt [Member] | Term Loan A Facility and Revolving Facility [Member]
Senior Unsecured Notes [Abstract]
Debt Instrument, Basis Spread on Variable Rate			0.25%
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Secured Debt [Member] | Term Loan A Facility and Revolving Facility [Member]
Senior Unsecured Notes [Abstract]
Debt Instrument, Basis Spread on Variable Rate			1.75%
Maximum [Member] | Base Rate [Member] | Secured Debt [Member] | Term Loan A Facility and Revolving Facility [Member]
Senior Unsecured Notes [Abstract]
Debt Instrument, Basis Spread on Variable Rate			0.75%
Total Leverage Ratio [Member] | Secured Debt [Member] | the Credit Agreement [Member]
Senior Unsecured Notes [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]
Senior Unsecured Notes [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]
Senior Unsecured Notes [Abstract]
Debt Instrument, Covenant Description			debt service coverage ratio (as defined in the related indenture) of at least 1.1:1
Debt Service Coverage Ratio - Cash Trap Reserve Account [Member] | Secured Debt [Member] | Securitization Notes [Member]
Senior Unsecured Notes [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 most recent quarter ended December 31, 2020, the Securitization Entities maintained a debt service coverage ratio significantly in excess of the 1.75:1 requirement
Prepaid Expenses and Other Current Assets [Member]
Senior Unsecured Notes [Abstract]
Restricted Cash and Cash Equivalents, Current	[5]		$ 258.0	$ 138.0	$ 151.0
Prepaid Expenses and Other Current Assets [Member] | Securitization Notes [Member]
Senior Unsecured Notes [Abstract]
Restricted Cash and Cash Equivalents, Current			85.0
Letter of Credit [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Outstanding letters of credit			$ 1.3

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

[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] Includes the effects of the amortization of any discount and debt issuance costs as well as the impact of the interest rate swaps on the Term Loan B Facility (See Note 13). The effective rates related to our Term Loan A and B Facilities are based on LIBOR-based interest rates through December 31, 2020.

[4] We estimated the fair value of the Securitization Notes using market quotes and calculations. The markets in which the Securitization Notes trade are not considered active markets.

[5] Restricted cash within Prepaid expenses and other current assets reflects 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 11).