Income Taxes (Schedule of Components of Income Tax Expense (Benefit), Current and Deferred) (Details) - USD ($) $ in Millions		12 Months Ended
	Jun. 28, 2018	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Current:
Federal		$ 341	$ 273	$ 633
State and local		41	10	52
Non-U.S.		143	56	73
Total current		525	339	758
Deferred:
Federal	$ (163)	(1,003)	258	96
State and local		16	37	12
Non-U.S.		(25)	(4)	(21)
Total deferred		(1,012)	291	87
Provision for/(benefit from) income taxes		$ (487)	$ 630	$ 845