Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 26, 2015	Dec. 27, 2014
Schedule of Equity Method Investments [Line Items]
Future lease payments due from franchisees on a nominal basis	$ 250
Reclassification of Retained Earnings to Common Stock for Share Repurchase	$ 5,399	$ 1,124	$ 725