Nature of Operations and Basis of Presentation	6 Months Ended
Nature of Operations and Basis of Presentation	Jun. 30, 2025
Nature Of Operations And Basis Of Presentation [Abstract]
Nature of Operations and Basis of Presentation	Nature of Operations and Basis of Presentation General Motors Company (sometimes referred to in this Quarterly Report on Form 10-Q as we, our, us, ourselves, the Company, General Motors or GM) designs, builds and sells trucks, crossovers, cars and automobile parts and provides software-enabled services and subscriptions worldwide. We also provide automotive financing services through General Motors Financial Company, Inc. (GM Financial). We analyze the results of our operations through the following segments: GM North America (GMNA), GM International (GMI) and GM Financial. In December 2024, we announced that we will no longer fund Cruise's robotaxi development work and in February 2025, began to wind down the Cruise robotaxi operations and combined the GM and Cruise ongoing personal autonomous technical efforts in our GMNA Automotive segment. Corporate includes certain centrally recorded income and costs such as interest, income taxes, corporate expenditures and certain revenues and expenses that are not part of a reportable segment. The condensed consolidated financial statements are prepared in conformity with U.S. generally accepted accounting principles (GAAP) pursuant to the rules and regulations of the Securities and Exchange Commission (SEC) for interim financial information. Accordingly, they do not include all of the information and notes required by U.S. GAAP for complete financial statements. The condensed consolidated financial statements include all adjustments, which consist of normal recurring adjustments and transactions or events discretely impacting the interim periods, considered necessary by management to fairly state our results of operations, financial position and cash flows. The operating results for interim periods are not necessarily indicative of results that may be expected for any other interim period or for the full year. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our 2024 Form 10-K. Except for per share amounts or as otherwise specified, amounts presented within tables are stated in millions. Certain columns and rows may not add due to rounding. Throughout this report, we refer to General Motors Company and its consolidated subsidiaries in a simplified manner and on a collective basis, using words like "we," "our," "us" and "the Company." This drafting style is suggested by the SEC and is not meant to indicate that General Motors Company, the publicly traded parent company, or any particular subsidiary of the parent company, owns or operates any particular asset, business or property. The operations and businesses described in this report are owned and operated by distinct subsidiaries of General Motors Company. Principles of Consolidation We consolidate entities that we control due to ownership of a majority voting interest and we consolidate variable interest entities (VIEs) when we are the primary beneficiary. All intercompany balances and transactions are eliminated in consolidation. Our share of earnings or losses of nonconsolidated affiliates is included in our consolidated operating results using the equity method of accounting when we are able to exercise significant influence over the operating and financial decisions of the affiliate. GM Financial The amounts presented for GM Financial are adjusted to reflect the impact on GM Financial's deferred tax positions and provision for income taxes resulting from the inclusion of GM Financial in our consolidated tax returns and to eliminate the effect of transactions between GM Financial and the other members of the consolidated group. Accordingly, the amounts presented will differ from those presented by GM Financial on a stand-alone basis. Subsequent Event On July 4, 2025, the One Big Beautiful Bill Act (the Act) was signed into law that includes the extension and modification of certain key provisions of the U.S. Tax Cuts and Jobs Act of 2017 (TCJA), modification of certain Inflation Reduction Act (IRA) incentives, acceleration of the phase-out of clean vehicle and other clean energy credits and sets the civil penalties to zero for noncompliance with corporate average fuel economy (CAFE) standards. The Act also introduces a new auto loan interest deductibility provision that allows some individuals to deduct up to $10,000 per year in interest on new, U.S.-assembled personal vehicles purchased between 2025 and 2028. There are a variety of effective dates in the Act and only certain key provisions with financial reporting implications are expected to affect our financial statements for the year ending December 31, 2025. We are currently unable to estimate the financial impacts of the Act which could be material and may adversely affect electric vehicle (EV) profitability.