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v3.10.0.1

Revenue Recognition Accounting Policy (Details) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2018 USD ($) Rate
Minimum [Member] |  |
Continuing Fees Rate | 4.00% |
Maximum [Member] |  |
Continuing Fees Rate | 6.00% |
Master Franchise Agreement [Member] |  |
Continuing Fees Rate | 3.00% |
Foreign Currency Gain (Loss) and Refranchising Gain (Loss) [Member] |  |
Deferred Revenue, Period Increase (Decrease) | $ | $ 11 | [1]
[1] | Includes impact of foreign currency translation as well as the recognition of deferred franchise fees into Refranchising (gain) loss upon the modification of existing franchise agreements when entering into master franchise agreements.

X
- Definition Amount of increase (decrease) in deferred revenue. + References No definition available. + Details
Name: | us-gaap_DeferredRevenuePeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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- Definition Continuing Fees Rate + References No definition available. + Details
Name: | yum_ContinuingFeesRate
Namespace Prefix: | yum_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=yum_MasterFranchiseAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=yum_ForeignCurrencyGainLossandRefranchisingGainLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |