Corporate and Other Operating Income (Loss) Activity (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)		$ 5,283	$ 6,594	$ 17,102	$ 20,214
Corporate and Other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)		(1,544)	(192)	(4,705)	(1,279)
Corporate and Other | Revenue reconciling amounts and other
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	[1]	(1,544)	(2)	(4,705)	294
Corporate and Other | Impairment, integration, and restructuring expenses
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)		$ 0	$ (190)	$ 0	$ (1,573)

[1] Revenue reconciling amounts and other for the three months ended March 31, 2016 primarily consisted of a net $1.6 billion of revenue deferrals related to sales of Windows 10. Revenue reconciling amounts and other for the nine months ended March 31, 2016 primarily consisted of a net $4.6 billion of revenue deferrals related to sales of Windows 10. Revenue reconciling amounts and other for the nine months ended March 31, 2015 included the net recognition of $296 million of previously deferred revenue related to bundled products and services.