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Revenue Classified by Significant Product and Service Offerings (Parenthetical) (Detail) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Revenue from External Customer [Line Items]    
Revenue $ 33,055 $ 29,084
Commercial Cloud    
Revenue from External Customer [Line Items]    
Revenue $ 11,600 $ 8,500