Leases (Details) $ in Millions	12 Months Ended
	Dec. 26, 2015 USD ($) Years	Dec. 27, 2014 USD ($)	Dec. 28, 2013 USD ($)
Leases [Abstract]
Approximate number of restaurants operated	8,900
Approximate number of restaurants operated on leased land and/or buildings	8,025
Maximum duration of lease commitments from inception for the vast majority of our lease commitments (in years) | Years	20
Capital leases, future minimum commitments [Abstract]
2016	$ 20
2017	20
2018	20
2019	20
2020	19
Thereafter	188
Capital leases, total future minimum commitments	287
Operating leases, future minimum commitments [Abstract]
2016	672
2017	620
2018	569
2019	516
2020	457
Thereafter	2,123
Operating leases, total future minimum commitments	4,957
Direct financing leases, lease receivables [Abstract]
2016	2
2017	2
2018	2
2019	2
2020	1
Thereafter	3
Direct financing leases, total lease receivables	12
Operating leases, lease receivables [Abstract]
2016	55
2017	50
2018	47
2019	40
2020	33
Thereafter	125
Operating leases, total lease receivables	350
Present value of minimum payments under capital leases	169	$ 175
Unearned income associated with direct financing lease receivables	3
Rental expense
Minimum	737	766	$ 759
Contingent	294	302	293
Total rental expense	1,031	1,068	1,052
Rental income	$ 97	$ 103	$ 94
Approximate number of units leased or subleased to franchisees	825