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Digital Assets, Net - Narrative (Detail) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |
Impairment losses |  | $ 0 | $ 204
Increase in digital assets, net | $ 347 |  |
Decrease in deferred tax assets | 77 |  |
Increase in net income (loss) attributable to parent | $ 270 |  |
Increase in earnings per share, diluted (in dollars per share) | $ 0.08 |  |
Increase in earnings per share, basic (in dollars per share) | $ 0.08 |  |

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