Components of Other Income (Expense), Net (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Components of Other Income (Expense) [Line Items]
Dividends and interest income	$ 380	$ 230	$ 984	$ 629
Interest expense	(609)	(340)	(1,567)	(898)
Net recognized gains on investments	790	85	1,893	193
Net losses on derivatives	(200)	(155)	(340)	(414)
Net losses on foreign currency remeasurements	0	(18)	(134)	(52)
Other, net	(39)	(49)	(228)	(156)
Total	$ 322	$ (247)	$ 608	$ (698)