Segment Reporting and Information about Geographic Areas - Schedule of Total Revenues and Gross Profit by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting Revenue Reconciling Item [Line Items]
Revenues	$ 22,496	$ 25,500	$ 41,831	$ 46,801
Cost of revenues	18,618	20,922	34,800	38,527
Gross profit	3,878	4,578	7,031	8,274
Automotive segment
Segment Reporting Revenue Reconciling Item [Line Items]
Revenues	19,707	22,486	36,312	42,152
Cost of revenues	16,675	18,648	30,912	35,021
Gross profit	3,032	3,838	5,400	7,131
Depreciation and amortization	891	885	1,840	1,760
Energy generation and storage segment
Segment Reporting Revenue Reconciling Item [Line Items]
Revenues	2,789	3,014	5,519	4,649
Cost of revenues	1,943	2,274	3,888	3,506
Gross profit	846	740	1,631	1,143
Depreciation and amortization	$ 87	$ 94	$ 170	$ 185