Segment Revenue (Detail) - USD ($) $ in Millions	3 Months Ended																12 Months Ended
	Jun. 30, 2017	[1],[2]	Mar. 31, 2017	[1],[2]	Dec. 31, 2016	[1],[2]	Sep. 30, 2016	[1],[2]	Jun. 30, 2016	[3]	Mar. 31, 2016	[3]	Dec. 31, 2015	[3]	Sep. 30, 2015	[3]	Jun. 30, 2017		Jun. 30, 2016		Jun. 30, 2015
Segment Reporting Information [Line Items]
Revenue	$ 23,317		$ 22,090		$ 24,090		$ 20,453		$ 20,614		$ 20,531		$ 23,796		$ 20,379		$ 89,950	[1],[2]	$ 85,320	[3]	$ 93,580
Reportable Segments | Productivity and Business Processes
Segment Reporting Information [Line Items]
Revenue																	30,444		26,487		26,430
Reportable Segments | Intelligent Cloud
Segment Reporting Information [Line Items]
Revenue																	27,440		25,042		23,715
Reportable Segments | More Personal Computing
Segment Reporting Information [Line Items]
Revenue																	38,773		40,434		43,435
Corporate and Other
Segment Reporting Information [Line Items]
Revenue																	$ (6,707)		$ (6,643)		$ 0

[1] On December 8, 2016, we acquired LinkedIn Corporation. LinkedIn has been included in our consolidated results of operations starting on the acquisition date.

[2] Reflects the impact of the net revenue deferral from Windows 10 of $1.9 billion, $2.0 billion, $1.5 billion, and $1.4 billion, for the first, second, third, and fourth quarter of fiscal year 2017, respectively, and $6.7 billion for fiscal year 2017.

[3] 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.