Fair Value Measurements (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 04, 2015	Jun. 28, 2014	Mar. 29, 2014	Jul. 04, 2015	Jan. 03, 2015
Fair Value Inputs, Liabilities, Quantitative Information
Cost method investments				$ 75	$ 71
Fixed rate debt obligations fair value disclosure				2,274
Fixed rate debt obligations carrying value				2,265
Other debt carrying value				1,476
Cash equivalents at carrying value excluding money market securities				$ 448	$ 713
Fixed Asset Charges | 2012 Business Realignment Restructuring Plan
Fair Value Inputs, Liabilities, Quantitative Information
Fixed asset charges	$ 1	$ 14	$ 1