Leases Lease Disclosure (Details)	12 Months Ended
	Jan. 01, 2017 Property Restaurant
Property Subject to or Available for Operating Lease [Line Items]
Number of Restaurants | Restaurant	6,537
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	149
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	53
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	128
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	979
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	519
Entity Operated Units [Member]
Property Subject to or Available for Operating Lease [Line Items]
Number of Restaurants | Restaurant	330