Components of Other Income (Expense), Net (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Components of Other Income (Expense) [Line Items]
Dividends and interest income	$ 1,387	$ 903	$ 766
Interest expense	(2,222)	(1,243)	(781)
Net recognized gains on investments	2,583	668	716
Net losses on derivatives	(510)	(443)	(423)
Net gains (losses) on foreign currency remeasurements	(164)	(121)	335
Other, net	(251)	(195)	(267)
Total	$ 823	$ (431)	$ 346