Items Affecting Comparability of Net Income and Cash Flows (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended							3 Months Ended		12 Months Ended			3 Months Ended	4 Months Ended	12 Months Ended																	12 Months Ended	4 Months Ended	12 Months Ended				12 Months Ended			3 Months Ended	4 Months Ended	12 Months Ended																													3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended			12 Months Ended	4 Months Ended	12 Months Ended
	Dec. 29, 2012		Dec. 31, 2011		Dec. 25, 2010	Dec. 29, 2012 Closed Stores [Member]	Dec. 31, 2011 Closed Stores [Member]	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 LJS and AW Closures and impairment (income) expenses	Mar. 24, 2012 PH UK	Dec. 29, 2012 PH UK	Dec. 28, 2013 PH UK	Dec. 29, 2012 PH UK	Dec. 29, 2012 China		Dec. 31, 2011 China		Dec. 25, 2010 China		Dec. 29, 2012 YRI		Dec. 31, 2011 YRI		Dec. 25, 2010 YRI		Dec. 29, 2012 YRI Russia	Dec. 31, 2011 YRI Russia	Jul. 01, 2010 YRI Russia restaurants	Dec. 29, 2012 YRI LJS and AW	Dec. 29, 2012 YRI PH UK restaurants	Dec. 29, 2012 YRI PH UK	Dec. 31, 2011 YRI PH UK	Dec. 25, 2010 YRI PH Mexico restaurants	Oct. 31, 2011 YRI KFC South Africa restaurants	Dec. 25, 2010 YRI KFC Mexico restaurants	Dec. 29, 2012 YRI KFC Taiwan	Dec. 25, 2010 YRI KFC Taiwan restaurants	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 U.S. Employee Severance [Member]	Dec. 31, 2011 U.S. Employee Severance [Member]	Dec. 25, 2010 U.S. Employee Severance [Member]	Dec. 29, 2012 U.S. LJS and AW	Dec. 29, 2012 U.S. KFC	Dec. 31, 2011 U.S. KFC	Dec. 25, 2010 U.S. KFC	Dec. 29, 2012 India		Dec. 31, 2011 India	Dec. 25, 2010 India	Dec. 29, 2012 Total amount allocated to segments		Dec. 31, 2011 Total amount allocated to segments		Dec. 25, 2010 Total amount allocated to segments		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	Mar. 24, 2012 Little Sheep Group Limited [Member]	Dec. 29, 2012 Little Sheep Group Limited [Member]	Feb. 01, 2012 Little Sheep Group Limited [Member]	Dec. 31, 2011 Little Sheep Group Limited [Member]	Dec. 29, 2012 Little Sheep Group Limited [Member] China	Dec. 29, 2012 2012 Deferred Vested Payout Plan for Former Employees [Member]	Dec. 29, 2012 2012 Deferred Vested Payout Plan for Former Employees [Member]	Dec. 29, 2012 United States Pension Plans of US Entity, Defined Benefit [Member]		Dec. 31, 2011 United States Pension Plans of US Entity, Defined Benefit [Member]
Facility Actions [Line Items]
Deferred vested pension payout																																																																																$ (227)	$ (278)	[1]	$ (29)
Pre-tax settlement charge for service and interest costs	84		0		0																																																																										84	84
Number of restaurants refranchised																																	331			123		222		124
Deferred franchise royalty incentives														53		53
Amortization period of deferred franchise royalty incentives														4 years 0 months 0 days		4 years 0 months 0 days
Recognition of Deferred Revenue															16
U.S. Business Transformation [Abstract]
Charges relating to U.S. general and administrative productivity initiatives and realignment of resources																																											5		21		9
Unpaid portion of current severance liability related to U.S. Business Transformation																																																	5	18
U.S. Business Transformation severance payments																																																	14	4	7
Depreciation reduction from the impairment of restaurants we offered to sell																																		13	3																		3	10	9
Divestiture of Business [Abstract]
Pre-tax losses recognized on business divestitures								17	68		86	80
Net tax benefit on business divestitures, including benefit on pre-tax losses and valuation allowance related to capital losses										(104)	(104)					(9)
Percentage impact on system sales																																1.00%																				5.00%
Percentage impact on Franchise license fees and income																																1.00%																				6.00%
Percentage impact on Operating Profit																																1.00%																				1.00%
Business Combination
Additional percentage of ownership acquired (in hundredths)																																																																												66.00%
Payments for acquisitions, net of cash acquired	543		81		62																																																																					540
Cash acquired due to acquisition																																																																										44
Current ownership percentage																																																																											93.00%		27.00%
Equity method investment in Little Sheep																																																																												107
Gain upon acquisition of Little Sheep	74	[2]	0		0																																																																					74	74
Current assets																																																																												109
Property, plant and equipment																																																																												64
Goodwill																																																																												376
Intangibles Assets																																																																												421
Indefinite-lived trademark																																																																												404
Other assets																																																																												35
Total assets acquired																																																																												1,005
Deferred taxes																																																																												105
Other liabilities																																																																												60
Total liabilities assumed																																																																												165
Redeemable noncontrolling interest	59		0																																																																									59
Other noncontrolling interest																																																																												16
Net assets acquired																																																																												765
Redeemable noncontrolling interest ownership percentage																																																																											7.00%
Percentage impact on revenue																																																																														4.00%
Number of restaurants acquired																																					68
Amount of cash paid to acquire interest in restaurants																													9		60						71
Number of company owned stores acquired																															50
Number of franchise owned stores to which we gained full rights and responsibilities as franchisor																															81
Amount of long term note receivable settled as part of acquisition																															11
Amount of long term debt assumed as part of acquisition																															10
Remaining balance of the purchase price anticipated to be paid in cash																														12
Facility Actions [Abstract]
Refranchising (gain) loss	(78)		72		63								24	46		70	(17)		(14)		(8)		61	[3]	69	[3]	53	[4],[5]										(52)			(45)	(69)	(122)	[6]	17	[6]	18	[6]								0		0	0							(78)	[7],[8]	72	[7],[8]	63	[7],[8]
Goodwill write-off related to sale of business											26					14																							7
Store closure (income) costs																	(4)	[9]	(1)	[9]	0	[9]	12	[9]	4	[9]	2	[9]															0	[9]	4	[9]	3	[9]								0	[9]	0	0	8	[9]	7	[9]	5	[9]
Store impairment charges																	13		13		16		7		18		12																9		17		14									0		0	0	29		48		42
Closure and impairment (income) expenses	37		135		47												9		12		16		19		22		14																9		21		17									0		0	0	37		55		47		0	[7]	80	[10],[7]	0	[7]
Number of PHs a Latin American franchise buyer will serve as the master franchisor for Mexico																																				53
Carrying value of goodwill	1,034	[11]	681	[12]	659									87		87	466		88		85		271		282		252													30		297	297		311	[12]	322									0		0	0
Number of KFCs a Latin American franchise buyer will serve as the master franchisor for Mexico																																						102
Refranchising loss due to impairment and probable obligations																																																																								76	76
Activity related to reserves for remaining lease obligations for closed stores [Roll Forward]
Beginning Balance						34	28
Amounts Used						(14)	(12)
New Decisions						3	17
Estimate/Decision Changes						3	2
CTA/Other						1	(1)
Ending Balance						$ 27	$ 34

[1] See Note 4 for discussion of the settlement payments and settlement loss related to the U.S. Plan's deferred vested benefit program.

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

[3] During the fourth quarter of 2012, we refranchised our remaining 331 Company-owned Pizza Hut dine-in restaurants in the United Kingdom. The newly signed franchise agreement for these stores allows the franchisee to pay continuing franchise fees in the initial years of the agreement at a reduced rate. We agreed to allow the franchisee to pay these reduced fees in part as consideration for their assumption of lease liabilities related to underperforming stores that we anticipate they will close that were part of the refranchising. We recognize the estimated value of terms in franchise agreements entered into concurrently with a refranchising transaction that are not consistent with market terms as part of the upfront refranchising gain (loss). Accordingly, upon the closing of this refranchising we recognized a loss of $53 million representing the estimated value of these reduced continuing fees. The associated deferred credit is recorded within Other liabilities and deferred credits in our Consolidated Balance Sheet as of December 29, 2012 and will be amortized into YRI's Franchise and license fees and income over the next 4 years, including $16 million in 2013. This upfront loss largely contributed to a $70 million Refranchising loss we recognized during 2012 as a result of this refranchising. Also included in that loss was the write-off of $14 million in goodwill allocated to the Pizza Hut UK reporting unit. The remaining carrying value of goodwill allocated to our Pizza Hut UK business of $87 million, after the aforementioned write-off, was determined not to be impaired as the fair value of the Pizza Hut UK reporting unit exceeded its carrying amount. An income tax benefit of $9 million was recorded in 2012 as a result of this $70 million refranchising loss.During 2011, we recorded a $76 million charge in Refranchising gain (loss) as a result of our decision to refranchise or close all of our remaining company-owned Pizza Hut UK dine-in restaurants, primarily to write down these restaurants' long-lived assets to their then estimated fair value. Impairment charges of Pizza Hut UK long-lived assets incurred as a result of this decision, including the charge mentioned in the previous sentence, reduced depreciation expense versus what would have otherwise been recorded by $13 million and $3 million for the years ended December 29, 2012 and December 31, 2011, respectively.

[4] In the year ended December 25, 2010 we recorded a $52 million loss on the refranchising of our Mexico equity market as we sold all of our Company-owned restaurants, comprised of 222 KFCs and 123 Pizza Huts, to an existing Latin American franchise partner. The buyer is serving as the master franchisee for Mexico which had 102 KFC and 53 Pizza Hut franchise restaurants at the time of the transaction. The write-off of goodwill included in this loss was minimal as our Mexico reporting unit included an insignificant amount of goodwill. This loss did not result in any related income tax benefit.

[5] During the year ended December 25, 2010 we refranchised all of our remaining company restaurants in Taiwan, which consisted of 124 KFCs. We included in our December 25, 2010 financial statements a write-off of $7 million of goodwill in determining the loss on refranchising of Taiwan. This loss did not result in a related income tax benefit. The remaining carrying value of goodwill related to our Taiwan business of $30 million, after the aforementioned write-off, was determined not to be impaired as the fair value of the Taiwan reporting unit exceeded its carrying amount.

[6] 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.

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

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

[9] Store closure (income) costs include the net gain or loss on sales of real estate on which we formerly operated a Company restaurant that was closed, lease reserves established when we cease using a property under an operating lease and subsequent adjustments to those reserves and other facility-related expenses from previously closed stores.

[10] 2011 represents net losses resulting from the LJS and A&W divestitures. See Note 4.

[11] We recorded goodwill of $376 million related to our acquisition of Little Sheep. See Note 4.

[12] As a result of the LJS and A&W divestitures in 2011, we disposed of $26 million of goodwill assigned to our LJS and A&W reporting unit that was previously fully impaired. Goodwill that was assigned to our KFC U.S. and Taco Bell U.S. reporting units upon the acquisition of LJS and A&W and that has not been previously included in the carrying amounts of restaurants disposed of was not impaired, totals approximately $130 million and remains on our Consolidated Balance Sheet at December 29, 2012.