Contingencies (Details 3) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013
Valuation and Qualifying Accounts Disclosure [Line Items]
Taco Bell Wage and Hour Actions - Number of proposed classes concerning meals and rest breaks at Taco Bell which were rejected by the District Court		3
Number of states that assert state-law class action claims	16
Mark Smith v. Pizza Hut, Inc. - final number of opt-ins, expected approximate	6,049
Self Insured Property And Casualty Reserves [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning balance	128	142
Liability for Unpaid Claims and Claims Adjustment Expense, Period Increase (Decrease)	42	47
Payments	(54)	(61)
Ending balance	116	128
Guarantee of Indebtedness of Others
Valuation and Qualifying Accounts Disclosure [Line Items]
Loss contingency, amount of guarantee	25