Items Affecting Comparability of Net Income and/or Cash Flows (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended							3 Months Ended				6 Months Ended				3 Months Ended					6 Months Ended				3 Months Ended					6 Months Ended				12 Months Ended
	Jun. 11, 2011		Jun. 12, 2010		Jun. 11, 2011		Jun. 12, 2010		Dec. 25, 2010	Jun. 11, 2011 Little Sheep [Member]	May 13, 2011 Little Sheep [Member]	Jun. 11, 2011 China		Jun. 12, 2010 China		Jun. 11, 2011 China		Jun. 12, 2010 China		Jun. 11, 2011 YRI		Jun. 12, 2010 YRI		Mar. 20, 2010 YRI restaurants	Jun. 11, 2011 YRI		Jun. 12, 2010 YRI		Jun. 11, 2011 U.S.		Jun. 12, 2010 U.S.		Dec. 25, 2010 U.S.	Jun. 11, 2011 U.S.		Jun. 12, 2010 U.S.		Dec. 25, 2010 U.S.
Facility Actions [Abstract]
Refranchising (gain) loss	$ 5	[1],[2]	$ (10)	[1]	$ 3	[1],[2]	$ 53	[1],[2],[3]				$ (2)	[1]	$ (4)	[1]	$ (3)	[1]	$ (4)	[1]	$ (1)	[1]	$ (1)	[1]		$ (1)	[1]	$ 6	[1],[3]	$ 8	[1],[2]	$ (5)	[1]		$ 7	[1],[2]	$ 51	[1],[2]
Store closure (income) costs	2	[4]	(1)	[4]	3	[4]	0	[4]				0	[4]	0	[4]	(1)	[4]	0	[4]	0	[4]	(1)	[4]		1	[4]	(1)	[4]	2	[4]	0	[4]		3	[4]	1	[4]
Store impairment charges	17		13		19		16					3		5		4		5		7		2			8		4		7		6			7		7
Closure and impairment (income) expenses	19		12		22	[5]	16					3		5		3	[5]	5		7		1			9	[5]	3		9		6			10	[5]	8
Impairment charge related to LJS and AW businesses not allocated to a segment					66
Number of KFCs refranchised in Taiwan																								124
Non-cash write-off of Goodwill upon refranchsing of the Taiwan equity market																								7
Carrying value of goodwill related to Taiwan business																								30
Impairment of Long Lived Assets Held for Use related to restaurants offered to refranchise in the U.S.																													2				12	2		73		85
Business Combinations [Abstract]
Current ownership percentage										27.00%
Pre-conditional cash offer for potential acquisition											570
Potential ownership percentage after acquisition											93.00%
Escrow deposit for potential acquisition										300
Letter of credit provided for potential acquisition										300
Repayments of Senior Unsecured Notes	650
Assets held for sale	$ 22				$ 22				$ 23

[1] Refranchising (gain) loss is not allocated to segments for performance reporting purposes.

[2] U.S. refranchising loss for the year to date ended June 12, 2010 included $73 million in non-cash impairment charges related to our offer to refranchise a substantial portion of our Company operated KFCs in the U.S.  We recorded an additional $12 million and $2 million in non-cash impairment charges related to these restaurants in the quarters ended December 25, 2010 and June 11, 2011, respectively.  The majority of these restaurants offered for sale in 2010 continue to be Company operated at June 11, 2011.  We believed in 2010 and continue to believe at June 11, 2011 that the restaurant groups for which we have not yet entered into agreements to sell do not meet the criteria to be classified as held for sale.  Consistent with our historical policy, we are reviewing these restaurant groups for impairment on a held for use basis each quarter as a result of our intent to refranchise.  To the extent the carrying value of these restaurant groups are not recoverable based upon our estimate of expected refranchising proceeds and holding period cash flows while we continue to operate the restaurants, they are written down to current estimates of their fair value.  These fair value estimates, which are based on the sales price we would expect to receive for each restaurant group, consider current market conditions, real-estate values, trends in the KFC-U.S. business, prices for similar transactions in the restaurant industry and preliminary offers for any restaurant groups to date.  We continue to depreciate the carrying values of the restaurant assets, net of the aforementioned impairment charges, and will continue to do so through the date we believe the held for sale criteria for any restaurant groups are met.  The $85 million and $2 million in impairment charges recorded in 2010 and 2011, respectively, do not include any allocation of the KFC reporting unit goodwill in the restaurant groups’ carrying values.  This additional non-cash write down is being recorded, consistent with our historical policy, when a restaurant group ultimately meets the criteria to be classified as held for sale.  We will also be required to record a charge for the fair value of our guarantee of future lease payments for leases we assign to the franchisee upon any sale.

[3] During the quarter ended March 20, 2010 we refranchised all of our remaining company restaurants in Taiwan, which consisted of 124 KFCs.  We included in our March 20, 2010 financial statements a non-cash 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, and was not allocated to any segment for performance reporting purposes.  The amount of goodwill write-off was based on the relative fair values of the Taiwan business disposed of and the portion of the business that was retained.  The fair value of the business disposed of was determined by reference to the discounted value of the future cash flows expected to be generated by the restaurants and retained by the franchisee, which included a deduction for the anticipated royalties the franchisee will pay the Company associated with the franchise agreement entered into in connection with this refranchising transaction. The fair value of the Taiwan business retained consisted of expected net cash flows to be derived from royalties from franchisees, including the royalties associated with the franchise agreement entered into in connection with this refranchising transaction.  We believed the terms of the franchise agreement entered into in connection with the Taiwan refranchising were substantially consistent with market.  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 subsequent to the refranchising as the fair value of the Taiwan reporting unit exceeded its carrying amount.

[4] 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.

[5] During the quarter ended March 19, 2011, we recognized an impairment charge of $66 million resulting from the planned sale of the LJS and A&W businesses that was not allocated to segments for performance reporting purposes and is not included in this table.