Segment Reporting and Information about Geographic Areas - Schedule of Total Revenues and Gross Profit by Reportable Segment (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenues	$ 23,329	$ 18,756
Gross profit	4,511	5,460
Automotive Segment [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenues	1,529	616
Gross profit	4,343	5,532
Energy Generation and Storage [Member]
Segment Reporting Revenue Reconciling Item [Line Items]
Total revenues	21,800	18,140
Gross profit	$ 168	$ (72)