Unearned Revenue by Segment (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Jun. 30, 2019
Contract With Customer Liability [Line Items]
Unearned revenue	$ 30,397	$ 37,206
Productivity and Business Processes
Contract With Customer Liability [Line Items]
Unearned revenue	14,077	16,831
Intelligent Cloud
Contract With Customer Liability [Line Items]
Unearned revenue	12,984	16,988
More Personal Computing
Contract With Customer Liability [Line Items]
Unearned revenue	$ 3,336	$ 3,387