Revenue Classified by Major Geographic Areas (Detail) - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2017	Sep. 30, 2016
Geographic Information [Line Items]
Revenues		$ 24,538	$ 21,928
United States
Geographic Information [Line Items]
Revenues	[1]	12,527	11,215
Other Countries
Geographic Information [Line Items]
Revenues		$ 12,011	$ 10,713

[1] Includes billings to original equipment manufacturers and certain multinational organizations because of the nature of these businesses and the impracticability of determining the geographic source of the revenue.