Valuation and Qualifying Accounts - Schedule of Valuation and Qualifying Accounts (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Allowances for doubtful accounts
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	$ (46)	$ (46)	$ (42)
Additions	(34)	(5)	(11)
Acquisitions and disposals	(9)	(10)	(5)
Utilization	16	14	11
Foreign exchange	0	1	1
Balance at end of year	(73)	(46)	(46)
Allowances for sales returns
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	(192)	(171)	(166)
Additions	(539)	(615)	(526)
Acquisitions and disposals	(1)	0	0
Utilization	557	593	519
Foreign exchange	1	1	2
Balance at end of year	(174)	(192)	(171)
Deferred tax valuation allowance
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of year	(1,468)	(1,385)	(1,187)
Additions	(104)	(53)	(409)
Acquisitions and disposals	(1)	(122)	169
Utilization	(4)	27	13
Foreign exchange	31	65	29
Balance at end of year	$ (1,546)	$ (1,468)	$ (1,385)