Components of Other Income (Expense), Net (Detail) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Other Income And Expenses [Abstract]
Interest and dividends income	$ 724	$ 681
Interest expense	(637)	(674)
Net recognized gains (losses) on investments	(57)	243
Net gains (losses) on derivatives	46	(3)
Net gains (losses) on foreign currency remeasurements	(58)	5
Other, net	(18)	14
Total	$ 0	$ 266