Income Tax Expense (Benefit) Components of Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 29, 2018	Jun. 30, 2017	Jul. 01, 2016
Current:
Foreign	$ 166	$ 127	$ 59
Domestic - Federal	1,597	229	2
Domestic - State	(5)	4	(1)
Current income tax expense (benefit)	1,758	360	60
Deferred:
Foreign	(39)	56	(39)
Domestic - Federal	(300)	(44)	(109)
Domestic - State	(9)	0	(1)
Deferred income tax expense (benefit)	(348)	12	(149)
Income tax expense (benefit)	$ 1,410	$ 372	$ (89)