Revenue Classified by Major Geographic Areas (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Geographic Information [Line Items]
Revenues		$ 26,819	$ 23,212	$ 80,275	$ 70,966
United States
Geographic Information [Line Items]
Revenues	[1]	13,457	12,298	41,094	37,628
Other Countries
Geographic Information [Line Items]
Revenues		$ 13,362	$ 10,914	$ 39,181	$ 33,338

[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.