Segment Reporting and Information about Geographic Areas - Schedule of Total Revenues and Gross Profit by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Segment Reporting Revenue Reconciling Item [Line Items]
Revenues	$ 22,387	$ 19,335
Cost of revenues	17,667	16,182
Gross profit	4,720	3,153
Automotive segment
Segment Reporting Revenue Reconciling Item [Line Items]
Revenues	19,979	16,605
Cost of revenues	16,211	14,237
Gross profit	3,768	2,368
Depreciation and amortization	1,020	954
Energy generation and storage segment
Segment Reporting Revenue Reconciling Item [Line Items]
Revenues	2,408	2,730
Cost of revenues	1,456	1,945
Gross profit	952	785
Depreciation and amortization	$ 95	$ 83

The aggregate cost of goods produced and sold and services rendered during the reporting period.

- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References + Details

- Definition

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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