Business Combinations - Additional Information (Detail) $ in Millions		6 Months Ended
	Nov. 06, 2014 USD ($)	Dec. 31, 2015 USD ($) Entity	Jun. 30, 2015 USD ($)
Business Acquisition [Line Items]
Goodwill acquired		$ 17,436	$ 16,939
Mojang Synergies AB
Business Acquisition [Line Items]
Name of acquired entity		Mojang Synergies AB
Acquisition date	Nov. 06, 2014
Cash paid, net of cash acquired, to acquire the business	$ 2,500
Goodwill acquired	1,800
Identifiable intangible assets acquired	$ 928
Weighted-average amortization period	6 years 3 months 18 days
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Number of entities acquired | Entity		12
Cash paid to acquire the business		$ 782