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, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Accounting Policies [Abstract]
Net Income (Loss)	$ 2,703	$ 2,259	$ 5,216	$ 5,577
Less: Buy-out of noncontrolling interest	0	3	(5)	8
Net income used in computing basic net income per share of common stock	2,703	2,256	5,221	5,569
Less: Dilutive convertible debt	0	0	0	1
Net income used in computing diluted net income per share of common stock	$ 2,703	$ 2,256	$ 5,221	$ 5,568