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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021
Income Taxes [Line Items] |  |  |  |  |
Provision (benefit) for income taxes |  | $ 19,651 | $ 16,950 | $ 10,978 |
Income taxes paid, net of refunds |  | 23,400 | 23,100 | 16,000 |
Gross unrecognized tax benefits related to uncertain tax positions |  | 22,760 | 17,120 | 15,593 | $ 14,550
Gross unrecognized tax benefits related to uncertain tax positions, if recognized would affect our effective tax rates |  | 19,600 | 14,400 | 13,300 |
Accrued interest expense related to uncertain tax positions net of federal income tax benefits |  | 6,800 | 5,200 | 4,300 |
Interest expense related to uncertain tax positions, net of income tax benefits |  | $ 1,500 | $ 918 | $ 36 |
Regional Operating Centers |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Foreign earnings, taxed at rates lower than U.S. rate as a percentage of foreign income before tax |  | 83.00% | 81.00% | 71.00% |
Federal |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Operating loss carryforwards |  | $ 476 |  |  |
Capital loss carryforwards |  | $ 456 |  |  |
Capital loss carryforwards expiration year |  | 2025 |  |  |
State |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Operating loss carryforwards |  | $ 899 |  |  |
Foreign Country |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Operating loss carryforwards |  | $ 2,600 |  |  |
Transfer of Intangible Properties |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Provision (benefit) for income taxes | $ (3,300) |  |  |  |
Earliest Tax Year | Federal and State |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Operating loss carryforwards expiration year |  | 2025 |  |  |
Latest Tax Year | Federal and State |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |
Operating loss carryforwards expiration year |  | 2044 |  |  |

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