Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2016	Jul. 01, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation, net of income taxes of $30 million and $29 million at September 30, 2016 and July 1, 2016, respectively	$ (134)	$ (131)
Net unrealized loss on hedging derivatives, net of income taxes of $11 million at September 30, 2016 and July 1, 2016	(18)	(18)
Unrecognized postretirement obligations, net of income taxes of $213 million at September 30, 2016 and July 1, 2016	(345)	(346)
Accumulated other comprehensive loss	(497)	(495)
Tax effect on foreign currency translation	30	29
Tax effect on unrealized loss on hedging derivatives	11	11
Tax effect on unrecognized post-retirement obligations	$ 213	$ 213