Unearned Revenue by Segment (Detail) - USD ($) $ in Millions	Sep. 30, 2025	Jun. 30, 2025
Contract With Customer Liability [Line Items]
Unearned revenue	$ 61,533	$ 67,265
Productivity and Business Processes
Contract With Customer Liability [Line Items]
Unearned revenue	46,357	50,567
Intelligent Cloud
Contract With Customer Liability [Line Items]
Unearned revenue	12,659	14,022
More Personal Computing
Contract With Customer Liability [Line Items]
Unearned revenue	$ 2,517	$ 2,676