Revenue Classified by Significant Product and Service Offerings (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
Revenue from External Customer [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
Microsoft Office system
Revenue from External Customer [Line Items]
Revenue																	25,389		23,588		23,538
Server products and tools
Revenue from External Customer [Line Items]
Revenue																	21,758		19,177		18,612
Xbox
Revenue from External Customer [Line Items]
Revenue																	9,256		9,395		9,121
Windows PC operating system
Revenue from External Customer [Line Items]
Revenue																	8,625	[4]	8,104	[4]	14,826
Advertising
Revenue from External Customer [Line Items]
Revenue																	6,971		6,098		4,557
Consulting and product support services
Revenue from External Customer [Line Items]
Revenue																	5,588		5,641		5,090
Devices
Revenue from External Customer [Line Items]
Revenue																	4,557		7,466		11,602
LinkedIn
Revenue from External Customer [Line Items]
Revenue																	2,268	[5]	0		0
Other products and services
Revenue from External Customer [Line Items]
Revenue																	$ 5,538		$ 5,851		$ 6,234

[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.

[4] Includes the net revenue deferral from Windows 10.

[5] Includes advertising revenue.