Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jan. 01, 2016	Jul. 03, 2015
Components of accumulated other comprehensive loss
Foreign currency translation, net of income taxes of $27 million and $15 million at January 1, 2016 and July 3, 2015, respectively	$ (109)	$ (62)
Net unrealized loss on hedging derivatives, net of income taxes of $12 million at January 1, 2016 and July 3, 2015	(18)	(19)
Unrecognized postretirement obligations, net of income taxes of $40 million and $42 million at January 1, 2016 and July 3, 2015, respectively	61	65
Accumulated other comprehensive loss	(66)	(16)
Tax effect on foreign currency translation	27	15
Tax effect on unrealized loss on hedging derivatives	12	12
Tax effect on unrecognized post-retirement obligations	$ 40	$ 42