Selected Quarterly Financial Data (Unaudited) (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended				4 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	4 Months Ended	12 Months Ended	3 Months Ended		12 Months Ended	3 Months Ended	4 Months Ended	12 Months Ended												3 Months Ended	12 Months Ended
	Dec. 29, 2012		Dec. 31, 2011	Dec. 25, 2010	Dec. 29, 2012 2012 Deferred Vested Payout Plan for Former Employees [Member]	Dec. 29, 2012 2012 Deferred Vested Payout Plan for Former Employees [Member]	Mar. 24, 2012 Little Sheep Group Limited [Member]	Dec. 29, 2012 Little Sheep Group Limited [Member]	Mar. 24, 2012 PH UK	Dec. 29, 2012 PH UK	Dec. 29, 2012 PH UK	Sep. 03, 2011 LJS and AW	Mar. 19, 2011 LJS and AW	Dec. 31, 2011 LJS and AW	Mar. 24, 2012 U.S.	Dec. 29, 2012 U.S.	Dec. 29, 2012 U.S.		Dec. 31, 2011 U.S.		Dec. 25, 2010 U.S.		Dec. 29, 2012 Unallocated Amount to Segment [Member]		Dec. 31, 2011 Unallocated Amount to Segment [Member]		Dec. 25, 2010 Unallocated Amount to Segment [Member]		Sep. 03, 2011 Unallocated Amount to Segment [Member] PH UK	Dec. 31, 2011 Unallocated Amount to Segment [Member] PH UK
Facility Actions [Line Items]
Gain upon acquisition of Little Sheep	$ 74	[1]	$ 0	$ 0			$ 74	$ 74
Refranchising (gain) loss	(78)		72	63					24	46	70				(45)	(69)	(122)	[2]	17	[2]	18	[2]	(78)	[3],[4]	72	[3],[4]	63	[3],[4]
YUM Retirement Plan settlement charge	84		0	0	84	84
Pre-tax losses recognized on business divestitures												17	68	86
Refranchising loss due to impairment and probable obligations																													$ 76	$ 76

[1] See Note 4 for further details on the acquisition of Little Sheep.

[2] U.S. Refranchising (gain) loss in the year ended December 29, 2012 is primarily due to gains on sales of Taco Bells. U.S. Refranchising (gain) loss in the years ended December 31, 2011 and December 25, 2010 is primarily due to losses on sales of and offers to refranchise KFCs in the U.S. The non-cash impairment charges that were recorded related to our offers to refranchise these company-operated KFC restaurants in the U.S. decreased depreciation expense versus what would have otherwise been recorded by $3 million, $10 million and $9 million in the years ended December 29, 2012, December 31, 2011 and December 25, 2010, respectively. These depreciation reductions were not allocated to the U.S. segment resulting in depreciation expense in the U.S. segment results continuing to be recorded at the rate at which it was prior to the impairment charges being recorded for these restaurants.

[3] Amounts have not been allocated to the U.S., YRI or China Division segments for performance reporting purposes.

[4] See Note 4 for further discussion of Refranchising gain (loss).