Unearned Revenue by Segment (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Jun. 30, 2021
Contract With Customer Liability [Line Items]
Unearned revenue	$ 41,015	$ 44,141
Productivity and Business Processes
Contract With Customer Liability [Line Items]
Unearned revenue	20,565	22,120
Intelligent Cloud
Contract With Customer Liability [Line Items]
Unearned revenue	16,117	17,710
More Personal Computing
Contract With Customer Liability [Line Items]
Unearned revenue	$ 4,333	$ 4,311

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130531-203044

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130549-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123360276&loc=SL49130532-203044

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant