Operating Income (Loss) by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting Information [Line Items]
Operating Income (Loss)	$ 10,341	$ 8,292	$ 30,554	$ 24,679
Productivity and Business Processes
Segment Reporting Information [Line Items]
Operating Income (Loss)	3,979	3,115	11,875	9,458
Intelligent Cloud
Segment Reporting Information [Line Items]
Operating Income (Loss)	3,208	2,654	9,418	7,623
More Personal Computing
Segment Reporting Information [Line Items]
Operating Income (Loss)	$ 3,154	$ 2,523	$ 9,261	$ 7,598