Income Taxes (Schedule of Components of Income Tax Expense (Benefit), Current and Deferred) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Current:
Federal	$ (989)	$ 659	$ 295
State and local	92	154	89
Non-U.S.	112	69	85
Total current	(785)	882	469
Deferred:
Federal	539	(822)	(28)
State and local	(28)	(127)	(37)
Non-U.S.	(15)	(12)	(18)
Total deferred	496	(961)	(83)
Provision for/(benefit from) income taxes	$ (289)	$ (79)	$ 386