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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Dec. 31, 2021 | Sep. 30, 2021 | Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2021
Income Taxes [Line Items] |  |  |  |  |  |
Effective tax rate | 17.00% |  | 16.00% | 9.00% | 15.00% |
Provision (benefit) for income taxes | $ (3,750) |  | $ (2,874) | $ (3,769) | $ (5,105) |
Long-term income taxes | 26,121 |  |  | 26,121 |  | $ 27,190
Unrecognized Tax Benefits and Other Income Tax Liabilities |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |
Long-term income taxes | $ 16,300 |  |  | $ 16,300 |  | $ 15,900
Transfer of Intangible Properties |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |
Provision (benefit) for income taxes |  | $ 3,300 |  |  |  |

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