Segment Revenue (Detail) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Jun. 30, 2016	[1]	Mar. 31, 2016	[1]	Dec. 31, 2015	[1]	Sep. 30, 2015	[1]	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2016		Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Revenue	$ 20,614		$ 20,531		$ 23,796		$ 20,379		$ 22,180	$ 21,729	$ 26,470	$ 23,201	$ 85,320	[1]	$ 93,580	$ 86,833
Reportable Segments | Productivity and Business Processes
Segment Reporting Information [Line Items]
Revenue													26,487		26,430	26,976
Reportable Segments | Intelligent Cloud
Segment Reporting Information [Line Items]
Revenue													25,042		23,715	21,735
Reportable Segments | More Personal Computing
Segment Reporting Information [Line Items]
Revenue													40,460		43,160	38,460
Corporate and Other
Segment Reporting Information [Line Items]
Revenue													$ (6,669)		$ 275	$ (338)

[1] Reflects the impact of the net revenue deferral from Windows 10 of $1.3 billion, $1.7 billion, $1.6 billion, and $2.0 billion, for the first, second, third, and fourth quarter of fiscal year 2016, respectively, and $6.6 billion for fiscal year 2016.