Postretirement Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2016	Oct. 02, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Reduction in interest and service cost during period as result of change in estimates	$ 26	$ 7
Defined benefit plan, contributions by employer during period	(64)	$ (61)
Defined benefit plan, estimated future employer contributions in remaining fiscal year, maximum	(125)
Change in Assumptions for Pension Plans | United States Pension Plan of US Entity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Reduction in interest and service cost during period as result of change in estimates	$ (11)