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Contingencies (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 27, 2014
Guarantor Obligations [Line Items]  
Taco Bell Wage and Hour Actions - Proposed number of classes concerning meals and rest breaks at Taco Bell in California Supreme Court for which plaintiffs sought certification 4yum_TacoBellWageAndHourActionsProposedNumberOfClassesConcerningMealsAndRestBreaksAtTacoBellInCaliforniaSupremeCourtForWhichPlaintiffsSoughtCertification
Guarantor Exposure as percent of outstanding loans 20.00%yum_GuarantorExposureaspercentofoutstandingloans
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 650us-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 575yum_GuaranteeObligationsMaximumExposureAtPresentValue
/ us-gaap_GuaranteeObligationsByNatureAxis
= us-gaap_PropertyLeaseGuaranteeMember