Equity Incentive Plans - Additional Information (Detail) - USD ($) shares in Millions, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2023	Jun. 30, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation				$ 863	$ 779
Performance Based Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation	$ 20	$ 34		45	$ 103
2021 Performance-Based Stock Option & RSU Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation expense	$ 140			$ 140
Weighted-average period of recognition of unrecognized compensation, in years				2 years 9 months
Number of RSUs, Granted			2.2