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Stockholders' Equity - Additional Information (Detail) - USD ($)
 3 Months Ended 6 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Sep. 14, 2021
Share Repurchases [Line Items]          
Amount of shares repurchased to settle employee tax withholding related to vesting of stock awards $ 1,200,000,000 $ 859,000,000 $ 2,500,000,000 $ 1,800,000,000  
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
Unused amount of share repurchase program $ 15,900,000,000   $ 15,900,000,000