Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Current:
Federal	$ (4)	$ 5	$ 4
State & Local	3	2	8
Foreign	102	118	107
Total current tax	101	125	119
Deferred:
Federal	(45)	26	269
State & Local	(4)	5	(9)
Foreign	(31)	(30)	(24)
Total deferred tax	(80)	1	236
Income tax expense	$ 21	$ 126	$ 355