Items Affecting Comparability of Net Income and Cash Flows (Details 2) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 19, 2016	Mar. 21, 2015	Dec. 26, 2015
Incremental Advertising [Domain] | KFC Global Division [Member]
Costs associated with KFC U.S. Acceleration Agreement	$ 4	$ 0
Property, Plant and Equipment [Domain] | Unallocated and General and administrative expenses [Domain]
Costs associated with KFC U.S. Acceleration Agreement	9	$ 2	$ 72
2015 to 2017 [Domain] | Property, Plant and Equipment [Domain] | Unallocated and General and administrative expenses [Domain]
Costs associated with KFC U.S. Acceleration Agreement	125
2016 [Domain] | Advertising [Domain] | KFC Global Division [Member]
Costs associated with KFC U.S. Acceleration Agreement	20
2016 [Domain] | Property, Plant and Equipment [Domain] | Unallocated and General and administrative expenses [Domain]
Costs associated with KFC U.S. Acceleration Agreement	30
2017 [Domain] | Advertising [Domain] | KFC Global Division [Member]
Costs associated with KFC U.S. Acceleration Agreement	$ 30