Income Taxes (Schedule of Components of Income Tax Expense (Benefit), Current and Deferred) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Current:
Federal	$ 295	$ 341	$ 273
State and local	89	41	10
Non-U.S.	85	143	56
Total current	469	525	339
Deferred:
Federal	(28)	(1,003)	258
State and local	(37)	16	37
Non-U.S.	(18)	(25)	(4)
Total deferred	(83)	(1,012)	291
Provision for/(benefit from) income taxes	$ 386	$ (487)	$ 630