Segment Revenue (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Revenue		$ 22,090	$ 20,531	$ 66,633	$ 64,706
Reportable Segments | Productivity and Business Processes
Segment Reporting Information [Line Items]
Revenue		7,958	6,521	21,998	19,517
Reportable Segments | Intelligent Cloud
Segment Reporting Information [Line Items]
Revenue		6,763	6,096	20,006	18,331
Reportable Segments | More Personal Computing
Segment Reporting Information [Line Items]
Revenue		8,836	9,539	29,953	31,474
Corporate and Other
Segment Reporting Information [Line Items]
Revenue	[1]	$ (1,467)	$ (1,625)	$ (5,324)	$ (4,616)

[1] Consists of the net revenue deferral from Windows 10.