Summary of Significant Accounting Policies (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended									4 Months Ended				12 Months Ended
	Sep. 08, 2012	Jun. 16, 2012	Mar. 24, 2012		Sep. 03, 2011		Jun. 11, 2011	Mar. 19, 2011		Dec. 29, 2012		Dec. 31, 2011		Dec. 29, 2012 Months weeks		Dec. 31, 2011		Dec. 25, 2010
Fiscal Period Adjustment [Line Items]
Week added as a result of the fiscal year ending on the last Saturday in December														53
Frequency of adding a week as a result of the fiscal year ending on the last Saturday in December														five or six
Number of weeks in each of the first three quarters of each fiscal year														12
Number of weeks in the fourth quarter of each fiscal year with 52 weeks														16
Number of weeks in the fourth quarter of each fiscal year with 53 weeks														17
Fiscal period months standard first quarter														2
Fiscal period months standard second and third quarters														3
Fiscal period months standard fourth quarter														4
Number of periods in advance that YRI closes their books														1
Total revenues	$ 3,569	$ 3,168	$ 2,743		$ 3,274		$ 2,816	$ 2,425		$ 4,153		$ 4,111		$ 13,633		$ 12,626		$ 11,343
Restaurant profit	599	423	440		494		386	360		519		513		1,981		1,753
Operating Profit	671	473	645	[1]	488	[2]	419	401	[2]	505	[1]	507	[2]	2,294	[1],[3],[4],[5],[6]	1,815	[2],[3],[4],[5],[7]	1,769	[3],[4],[5]
53rd Week Impact
Fiscal Period Adjustment [Line Items]
Total revenues																91
Restaurant profit																15
Operating Profit												$ 25				$ 25

[1] Includes a non-cash gain recognized upon acquisition of Little Sheep of $74 million in the first quarter, refranchising losses associated with the Pizza Hut UK dine-in business of $24 million and $46 million in the first and fourth quarters, respectively, net U.S. refranchising gains of $45 million and $69 million in the first and fourth quarters, respectively and the YUM Retirement Plan settlement charge of $84 million in the fourth quarter. See Note 4 for further discussion.

[2] Includes losses related to the LJS and A&W divestitures of $68 million and $17 million in the first and third quarters, respectively and a refranchising loss associated with the Pizza Hut UK dine-in business of $76 million in the third quarter. The fourth quarter of 2011 also includes the $25 million impact of the 53rd week in 2011. See Note 4 for further discussion.

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

[4] 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.

[5] 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.

[6] 2012 includes gain upon acquisition of Little Sheep of $74 million. See Note 4.

[7] 2011 represents net losses resulting from the LJS and A&W divestitures. See Note 4.