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Revenue Recognition Accounting Policy (Details)	Mar. 31, 2018 Rate
Minimum [Member]
Continuing Fees Rate	4.00%
Maximum [Member]
Continuing Fees Rate	6.00%

X

- 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:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: