Fair Value Disclosures (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 23, 2013		Mar. 24, 2012		Dec. 29, 2012	Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets (liabilites), net	$ 19		$ 24		$ 19	$ 34
Debt obligations, excluding capital leases, carrying amount	2,800
Refranchising (gain) loss	(17)		(26)
Gain upon acquisition of Little Sheep	0		(74)
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt obligations, excluding capital leases, estimate of fair value	3,200
Nonrecurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
(Gains) losses recognized from all non-recurring fair value measurements	0		(54)
Recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Level 1 to Level 2 Transfers, Amount	0
Fair Value, Level 2 to Level 1 Transfers, Amount	0
Total	37				36
Recurring basis | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Investments	18				17
Recurring basis | Level 2 | Foreign Currency Forwards [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets (liabilites), net	(3)				(5)
Recurring basis | Level 2 | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets (liabilites), net	22				24
Unallocated Amount to Segment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Refranchising (gain) loss	(17)	[1],[2]	(26)	[1],[2]
U.S.
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Refranchising (gain) loss	(17)	[3]	(45)	[3]
PH | UK
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Refranchising (gain) loss			21
PH | UK | Unallocated Amount to Segment [Member] | Nonrecurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Refranchising (gain) loss			21
Little Sheep Group Limited [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain upon acquisition of Little Sheep			(74)
Little Sheep Group Limited [Member] | Unallocated Amount to Segment [Member] | Nonrecurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain upon acquisition of Little Sheep			(74)	[4]
Other (income) expense | Little Sheep Group Limited [Member] | Nonrecurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain upon acquisition of Little Sheep	0	[4]	(74)	[4]
Refranchising (gain) loss | PH | UK | Unallocated Amount to Segment [Member] | Nonrecurring basis | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Refranchising (gain) loss	$ 0		$ 20	[4]

[1] Amounts have not been allocated to any segment for performance reporting purposes.

[2] Includes U.S. refranchising gains of $17 million and $45 million for the quarters ended March 23, 2013 and March 24, 2012, respectively, and a loss of $21 million related to the planned refranchising of our Pizza Hut UK dine-in business for the quarter ended March 24, 2012. See Note 4.

[3] In the quarters ended March 23, 2013 and March 24, 2012, U.S. Refranchising (gain) loss primarily relates to gains on the sales of Taco Bell restaurants.

[4] See Note 4 for further discussions of the Pizza Hut UK dine-in refranchising and the acquisition of Little Sheep.