Fair Value Measurements Non-Recurring Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended				12 Months Ended
	Sep. 28, 2014		Sep. 29, 2013		Sep. 28, 2014		Sep. 29, 2013		Dec. 29, 2013
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
System Optimization Remeasurement					$ 7,484		$ 18,359
Impairment of long-lived assets	3,408		5,327		3,740		5,327
Impairment of goodwill									9,397
Impairment of long-lived assets					11,224		23,686		31,058
Asset impairment charges, nonrecurring					11,224				45,782
System Optimization [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
System Optimization Remeasurement	5,210	[1]	12,421	[1]	7,484	[1]	18,359	[1]
System Optimization [Member] | Facilities action (income) charges, net [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
System Optimization Remeasurement					7,484				20,506
Properties and Other Intangible Assets, Operating Restaurants [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Impairment of long-lived assets	2,027				2,027				9,094
Properties and Other Intangible Assets, Franchisee Leased / Subleased Assets [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Impairment of long-lived assets	250				250
Properties and Other Intangible Assets, Surplus Properties and Non-SO Held-for-sale [Member] [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Impairment of long-lived assets	1,131				1,463		500		1,458
Aircraft [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Impairment of long-lived assets	0		4,827		0		4,827		5,327
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Long-lived assets	7,581				7,581				14,788
Goodwill									0
Total	7,581				7,581				23,288
Fair Value, Measurements, Nonrecurring [Member] | Aircraft [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Aircraft									8,500
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Long-lived assets	0				0				0
Goodwill									0
Total	0				0				0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member] | Aircraft [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Aircraft									0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Long-lived assets	0				0				0
Goodwill									0
Total	0				0				0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member] | Aircraft [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Aircraft									0
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Long-lived assets	7,581				7,581				14,788
Goodwill									0
Total	7,581				7,581				23,288
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] | Aircraft [Member]
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items]
Aircraft									$ 8,500

[1] Includes remeasurement of land, buildings, leasehold improvements and favorable lease assets at company-owned restaurants included in our system optimization initiative. See Note 5 for more information on non-recurring fair value measurements.