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Guarantees, Commitments and Contingencies (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 21, 2015
Franchise lending program guarantee  
Guarantor Obligations [Line Items]  
Loss contingency, amount of guarantee $ 27yum_AmountOfPossibleLossForContingencies
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_PerformanceGuaranteeMember
Total loans outstanding 75yum_TotalLoansOutstanding
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_PerformanceGuaranteeMember
Property Lease Guarantee [Member]  
Guarantor Obligations [Line Items]  
Year longest lease expires 2065
Potential amount of undiscounted payments we could be required to make in the event of non-payment by the primary lessee 625us-gaap_GuaranteeObligationsMaximumExposure
/ us-gaap_GuaranteeObligationsByNatureAxis
= us-gaap_PropertyLeaseGuaranteeMember
Present value of potential payments we could be required to make in the event of non-payment by the primary lessee $ 550yum_GuaranteeObligationsMaximumExposureAtPresentValue
/ us-gaap_GuaranteeObligationsByNatureAxis
= us-gaap_PropertyLeaseGuaranteeMember