Summary of Significant Accounting Policies - Schedule of Reconciliation of Net Income Used in Computing Basic and Diluted Net Income Per Share of Common Stock and Basic to Diluted Weighted Average Shares Used in Computing Net Income Per Share of Common Stock (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accounting Policies [Abstract]
Net income (loss) attributable to common stockholders	$ 2,259	$ 1,142	$ 5,577	$ 1,580
Less: Buy-out of noncontrolling interest	3	0	8	0
Net income (loss) used in computing net income per share of common stock	2,256	1,142	5,569	1,580
Less: Dilutive convertible debt	0	2	(1)	6
Net income (loss) used in computing diluted net income (loss) per share of common stock	$ 2,256	$ 1,144	$ 5,568	$ 1,586