Leases Lease Disclosure (Details)	12 Months Ended
	Dec. 28, 2014
Property Subject to or Available for Operating Lease [Line Items]
Number of Restaurants	6,515
Minimum [Member]
Property Subject to or Available for Operating Lease [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	15 years
Maximum [Member]
Property Subject to or Available for Operating Lease [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	20 years
Lessee Disclosure [Member] | Minimum [Member]
Property Subject to or Available for Operating Lease [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	15 years
Lessee Disclosure [Member] | Maximum [Member]
Property Subject to or Available for Operating Lease [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	20 years
Lessee Disclosure [Member] | Land and Building [Member]
Property Subject to or Available for Operating Lease [Line Items]
Property Subject to or Available for Operating Lease, Number of Units	444
Lessor Disclosure [Member] [Member]
Property Subject to or Available for Operating Lease [Line Items]
Lessor Leasing Arrangements, Operating Leases, Term of Contract	20 years
Property Subject to Operating Lease [Member] | Lessee Disclosure [Member] | Land and Building [Member]
Property Subject to or Available for Operating Lease [Line Items]
Property Subject to or Available for Operating Lease, Number of Units	203
Property Subject to Operating Lease [Member] | Lessee Disclosure [Member] | Land
Property Subject to or Available for Operating Lease [Line Items]
Property Subject to or Available for Operating Lease, Number of Units	310
Property Subject to Operating Lease [Member] | Lessor Disclosure [Member] [Member]
Property Subject to or Available for Operating Lease [Line Items]
Property Subject to or Available for Operating Lease, Number of Units	488
Property Subject to Operating Lease [Member] | Lessor Disclosure [Member] [Member] | Assets Leased to Others [Member]
Property Subject to or Available for Operating Lease [Line Items]
Property Subject to or Available for Operating Lease, Number of Units	230
Entity Operated Units [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of Restaurants	957