Income Taxes (Details 5) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Unrecognized tax benefits [Abstract]
Percentage threshold that the positions taken or expected to be taken is more likely than not sustained upon examination by tax authorities (in hundredths)	50.00%
Unrecognized tax benefits, which, if recognized, would affect effective tax rate	$ 17	$ 170
Unrecognized tax benefits reconciliation [Roll Forward]
Beginning of Year	243us-gaap_UnrecognizedTaxBenefits	309us-gaap_UnrecognizedTaxBenefits
Additions on tax positions related to the current year	19	19
Additions for tax positions of prior years	31	55
Reductions for tax positions of prior years	(20)	(102)
Reductions for settlements	(144)	(23)
Reductions due to statute expiration	(13)	(16)
Foreign currency translation adjustment	(1)	1
End of Year	115us-gaap_UnrecognizedTaxBenefits	243us-gaap_UnrecognizedTaxBenefits	309us-gaap_UnrecognizedTaxBenefits
Income Tax Examination [Line Items]
Accrued interest and penalties	5	64
Total interest and penalties recorded during the period	11	18	3
Income Tax Examination Payment	$ 200yum_IncomeTaxExaminationPayment

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The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

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The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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-Glossary Unrecognized Tax Benefit

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Income Tax Examination Payment

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Percentage Threshold That Positions Taken Or Expected To Be Taken Is More Likely Than Not Sustained Upon Examination

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The gross amount of increases or decreases in unrecognized tax benefits resulting from foreign currency translation adjustment.

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