v3.19.2
Revenue Classified by Significant Product and Service Offerings (Parenthetical) (Detail) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Revenue from External Customer [Line Items]                      
Revenue $ 33,717 $ 30,571 $ 32,471 $ 29,084 $ 30,085 $ 26,819 $ 28,918 $ 24,538 $ 125,843 $ 110,360 $ 96,571
Commercial Cloud                      
Revenue from External Customer [Line Items]                      
Revenue                 $ 38,100 $ 26,600 $ 16,200