Document and Entity Information (USD $)	12 Months Ended
	Dec. 29, 2012	Feb. 12, 2013	Jun. 16, 2012
Document And Entity Information [Abstract]
Entity Registrant Name	YUM BRANDS INC
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 29, 2012
Entity Central Index Key	0001041061
Current Fiscal Year End Date	--12-29
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 29,700,000,000
Entity Common Stock, Shares Outstanding		450,729,244
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY