Income Taxes (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended						3 Months Ended		12 Months Ended											3 Months Ended	12 Months Ended
	Dec. 29, 2012		Dec. 31, 2011		Dec. 25, 2010		Sep. 03, 2011 LJS and AW	Mar. 19, 2011 LJS and AW	Dec. 29, 2012 LJS and AW	Dec. 31, 2011 LJS and AW	Dec. 31, 2011 U.S. state [Member] LJS and AW	Dec. 29, 2012 Current Year Operations	Dec. 31, 2011 Current Year Operations	Dec. 25, 2010 Current Year Operations	Dec. 31, 2011 Current Year Operations LJS and AW	Dec. 31, 2011 Current Year Operations U.S. state [Member] LJS and AW	Dec. 29, 2012 Changes in Judgement	Dec. 31, 2011 Changes in Judgement	Dec. 25, 2010 Changes in Judgement	Mar. 24, 2012 Little Sheep Group Limited [Member]	Dec. 29, 2012 Little Sheep Group Limited [Member]	Dec. 29, 2012 Non-recurring basis Fair Value, Inputs, Level 2 [Member] Little Sheep Group Limited [Member]		Dec. 31, 2011 Non-recurring basis Fair Value, Inputs, Level 2 [Member] Little Sheep Group Limited [Member]		Dec. 29, 2012 Non-recurring basis Fair Value, Inputs, Level 2 [Member] Little Sheep Group Limited [Member] Unallocated Amount to Segment [Member]
U.S. and foreign income before income taxes [Abstract]
U.S.	$ 504		$ 266		$ 345
Foreign	1,641		1,393		1,249
Income Before Income Taxes	2,145	[1],[2],[3],[4]	1,659	[1],[2],[3],[5]	1,594	[1],[2],[3]
Details of income tax provision (benefit) [Abstract]
Current: Federal	160		78		155
Current: Foreign	314		374		356
Current: State	35		9		15
Total current income tax provision (benefit)	509		461		526
Deferred: Federal	91		(83)		(82)
Deferred: Foreign	(57)		(40)		(29)
Deferred: State	(6)		(14)		1
Total deferred income tax provision (benefit)	28		(137)		(110)
Effective income tax rate	537		324		416
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
U.S. federal statutory rate	751		580		558
State income tax, net of federal tax benefit	4		2		12
Statutory rate differential attributable to foreign operations	(165)		(218)		(235)
Adjustments to reserves and prior years	(47)		24		55
Net benefit from LJS and A&W divestitures	0		(72)		0
Change in valuation allowance	14		22		22
Other, net	(20)		(14)		4
Effective income tax rate	537		324		416
Effective income tax rate reconciliation [Abstract]
U.S. federal statutory rate (in hundredths)	35.00%		35.00%		35.00%
State income tax, net of federal tax benefit (in hundredths)	0.20%		0.10%		0.70%
Statutory rate differential attributable to foreign operations (in hundredths)	(7.70%)		(13.10%)		(14.70%)
Adjustments to reserves and prior years (in hundredths)	(2.20%)		1.40%		3.50%
Net tax benefit from LJS and A&W divestitures (in hundreths)	0.00%		(4.30%)		0.00%
Change in valuation allowance (in hundredths)	0.60%		1.30%		1.40%
Other, net (in hundredths)	(0.90%)		(0.90%)		0.20%
Effective income tax rate (in hundredths)	25.00%		19.50%		26.10%
Changes in valuation allowance [Roll Forward]
Valuation Allowance, Change in Amount												(16)	(15)	25	(45)	4	2	(7)	(3)
Income Tax And Effective Tax Rate [Abstract]
Tax benefit recognized on business divestitures										(117)	(8)
Tax benefit on net pre-tax losses and other costs related to business divestitures										(32)
Pre-tax losses recognized on business divestitures							17	68		86
Net tax benefit on business divestitures, including benefit on pre-tax losses and valuation allowance related to capital losses									(104)	(104)
Gain upon acquisition of Little Sheep	74	[6]	0		0															74	74	74	[7]	0	[7]	74
Income tax expense (benefit) related to business combination, step acquisition, equity interest in acquiree, remeasurement gain																					$ 0

[1] Includes equity income from investments in unconsolidated affiliates of $47 million, $47 million and $42 million in 2012, 2011 and 2010, respectively, for China.

[2] 2012, 2011 and 2010 include depreciation reductions arising from the impairment of KFC restaurants we offered to sell of $3 million, $10 million and $9 million, respectively. 2012 and 2011 include depreciation reductions arising from the impairment of Pizza Hut UK restaurants we decided to sell in 2011 of $13 million and $3 million, respectively. See Note 4.

[3] 2012 includes the YUM Retirement Plan settlement charge of $84 million. 2012, 2011 and 2010 include approximately $5 million, $21 million and $9 million, respectively, of charges relating to U.S. general and administrative productivity initiatives and realignment of resources. See Note 4.

[4] 2012 includes gain upon acquisition of Little Sheep of $74 million. See Note 4.

[5] 2011 represents net losses resulting from the LJS and A&W divestitures. See Note 4.

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

[7] See Note 4 for further discussions of Refranchising (gain) loss, including the Pizza Hut UK dine-in refranchising and the acquisition of Little Sheep.