Operating Income (Loss) by Segment (Detail) - USD ($) $ in Millions	3 Months Ended												12 Months Ended
	Jun. 30, 2017	[1]	Mar. 31, 2017	[1]	Dec. 31, 2016	[1]	Sep. 30, 2016	[1]	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2017		Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Operating income (loss)	$ 5,330		$ 5,594		$ 6,177		$ 5,225		$ 3,080	$ 5,283	$ 6,026	$ 5,793	$ 22,326	[1]	$ 20,182	$ 18,161
Reportable Segments | Productivity and Business Processes
Segment Reporting Information [Line Items]
Operating income (loss)													11,913		12,418	13,274
Reportable Segments | Intelligent Cloud
Segment Reporting Information [Line Items]
Operating income (loss)													9,138		9,315	9,803
Reportable Segments | More Personal Computing
Segment Reporting Information [Line Items]
Operating income (loss)													8,288		6,202	5,095
Corporate and Other
Segment Reporting Information [Line Items]
Operating income (loss)													$ (7,013)		$ (7,753)	$ (10,011)

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