Components of Other Income (Expense), Net (Detail) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Components of Other Income (Expense) [Line Items]
Dividends and interest income	$ 473	$ 293
Interest expense	(672)	(437)
Net recognized gains on investments	573	405
Net losses on derivatives	(50)	(94)
Net losses on foreign currency remeasurements	(9)	(40)
Other, net	(39)	(15)
Total	$ 276	$ 112