Pension and Other Postretirement Benefits (Details 5) $ in Millions	12 Months Ended
	Jul. 03, 2015 USD ($)
Net periodic benefit cost
Service cost	$ 8
Interest cost	25
Expected return on plan assets	34
Amortization of net actuarial loss	7
Amortization of prior service credit	(13)
Total net periodic benefit cost	(7)
Other changes in plan assets and benefit obligations recognized in other comprehensive income
Net actuarial gain	(122)
Prior service credit	(19)
Amortization of net actuarial loss	(7)
Amortization of prior service credit	13
Total change recognized in other comprehensive income	(135)
Total impact from net periodic benefit cost and changes in other comprehensive income	(142)
Pension
Net periodic benefit cost
Service cost	7
Interest cost	23
Expected return on plan assets	32
Amortization of net actuarial loss	1
Total net periodic benefit cost	(1)
Other changes in plan assets and benefit obligations recognized in other comprehensive income
Net actuarial gain	(117)
Amortization of net actuarial loss	(1)
Total change recognized in other comprehensive income	(118)
Total impact from net periodic benefit cost and changes in other comprehensive income	(119)
Other benefits
Net periodic benefit cost
Service cost	1
Interest cost	2
Expected return on plan assets	2
Amortization of net actuarial loss	6
Amortization of prior service credit	(13)
Total net periodic benefit cost	(6)
Other changes in plan assets and benefit obligations recognized in other comprehensive income
Net actuarial gain	(5)
Prior service credit	(19)
Amortization of net actuarial loss	(6)
Amortization of prior service credit	13
Total change recognized in other comprehensive income	(17)
Total impact from net periodic benefit cost and changes in other comprehensive income	$ (23)