Financial Statement Presentation (Details 3) $ in Millions	Jan. 01, 2018 USD ($)
Other Assets [Member]
Write-off of unamortized tax consequence of certain historical intra-entity transfers of assets	$ 34

Write-off of unamortized tax consequence of certain historical intra-entity transfers of assets

No definition available.

Name:	yum_Writeoffofunamortizedtaxconsequenceofcertainhistoricalintraentitytransfersofassets
Namespace Prefix:	yum_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant