Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended													12 Months Ended
	Jun. 30, 2017	[2]	Mar. 31, 2017	[2]	Dec. 31, 2016	[2]	Sep. 30, 2016	[2]	Jun. 30, 2016		Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2017		Jun. 30, 2016		Jun. 30, 2015
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Net income available for common shareholders (A)	$ 6,513	[1]	$ 4,801		$ 5,200		$ 4,690		$ 3,122	[3]	$ 3,756	$ 5,018	$ 4,902	$ 21,204	[1],[2]	$ 16,798	[3]	$ 12,193
Weighted average outstanding shares of common stock (B)														7,746		7,925		8,177
Dilutive effect of stock-based awards														86		88		77
Common stock and common stock equivalents (C)														7,832		8,013		8,254
Earnings Per Share
Basic (A/B)	$ 0.84		$ 0.62		$ 0.67		$ 0.60		$ 0.40		$ 0.48	$ 0.63	$ 0.61	$ 2.74	[2]	$ 2.12		$ 1.49
Diluted (A/C)	$ 0.83	[1]	$ 0.61		$ 0.66		$ 0.60		$ 0.39	[3]	$ 0.47	$ 0.62	$ 0.61	$ 2.71	[1],[2]	$ 2.10	[3]	$ 1.48

[1] Includes $306 million of employee severance expenses primarily related to our sales and marketing restructuring plan, which decreased operating income, net income, and diluted EPS by $306 million, $243 million, and $0.03, respectively.

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

[3] Includes $630 million of asset impairment charges related to our phone business, and $480 million of restructuring charges associated with our 2016 restructuring plans, which together decreased operating income, net income, and diluted EPS by $1.1 billion, $895 million, and $0.11, respectively.