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Stockholders' Equity - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Sep. 14, 2021
Sep. 18, 2019
Share Repurchases [Line Items]            
Amount of shares repurchased to settle employee tax withholding related to vesting of stock awards $ 1,200,000,000 $ 785,000,000 $ 2,700,000,000 $ 2,300,000,000    
Share Repurchase Program 2019            
Share Repurchases [Line Items]            
Amount available for repurchase under the share repurchase program approved by the company's Board of Directors           $ 40,000,000,000.0
Share Repurchase Program 2021            
Share Repurchases [Line Items]            
Amount available for repurchase under the share repurchase program approved by the company's Board of Directors         $ 60,000,000,000.0  
Unused amount of share repurchase program $ 56,300,000,000   $ 56,300,000,000