Unearned Revenue by Segment (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Jun. 30, 2024
Contract With Customer Liability [Line Items]
Unearned revenue	$ 48,045	$ 60,184
Productivity and Business Processes
Contract With Customer Liability [Line Items]
Unearned revenue	33,582	43,599
Intelligent Cloud
Contract With Customer Liability [Line Items]
Unearned revenue	10,979	13,683
More Personal Computing
Contract With Customer Liability [Line Items]
Unearned revenue	$ 3,484	$ 2,902