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Stockholders' Equity - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2026 | Mar. 31, 2025 | Mar. 31, 2026 | Mar. 31, 2025 | Sep. 16, 2024 | Sep. 14, 2021
Share Repurchase Program [Line Items] |  |  |  |  |  |
Amount of shares repurchased to settle employee tax withholding related to vesting of stock awards | $ 1,200,000,000 | $ 1,300,000,000 | $ 4,400,000,000 | $ 4,100,000,000 |  |
Share Repurchase Program 2021 |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |
Amount available for repurchase under the share repurchase program approved by the company's Board of Directors |  |  |  |  |  | $ 60,000,000,000
Share Repurchase Program 2024 |  |  |  |  |  |
Share Repurchase Program [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 | $ 44,000,000,000 |  | $ 44,000,000,000 |  |  |

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- Definition Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-15 + Details
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