Components of Other Income (Expense), Net (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Components of Other Income (Expense) [Line Items]
Dividends and interest income	$ 200	$ 183	$ 399	$ 408
Interest expense	(309)	(162)	(558)	(323)
Net recognized gains on investments	106	317	108	396
Net losses on derivatives	(156)	(138)	(259)	(272)
Net gains (losses) on foreign currency remeasurements	2	83	(34)	161
Other	(14)	(209)	(107)	(244)
Total	$ (171)	$ 74	$ (451)	$ 126