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