v3.25.4
Debt - Automotive and GM Financial Debt (Details) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Automotive      
Debt Instrument [Line Items]      
Finance lease liabilities   $ 615 $ 383
Carrying Amount   16,247 15,467
Finance lease liabilities, Fair Value   614 391
Fair Value   16,213 15,204
Available under credit facility agreements   $ 13,913 $ 13,793
Weighted-average interest rate on outstanding short-term debt   12.60% 7.30%
Weighted-average interest rate on outstanding long-term debt   5.80% 5.80%
Net discount and debt issuance costs   $ 445 $ 439
Automotive | Secured Debt      
Debt Instrument [Line Items]      
Total debt   164 105
Fair Value   164 105
Automotive | Unsecured Debt      
Debt Instrument [Line Items]      
Total debt   15,468 14,980
Fair Value   15,434 14,709
Automotive | Level 1      
Debt Instrument [Line Items]      
Fair Value   15,065 14,366
Automotive | Level 2      
Debt Instrument [Line Items]      
Fair Value   1,148 838
GM Financial      
Debt Instrument [Line Items]      
Total debt   114,031 114,264
Fair Value   115,860 115,010
GM Financial | Secured Debt      
Debt Instrument [Line Items]      
Total debt   46,904 49,573
Fair Value   47,252 49,753
GM Financial | Unsecured Debt      
Debt Instrument [Line Items]      
Total debt   67,127 64,691
Fair Value   $ 68,607 65,258
GM Financial | Unsecured Debt | Line of Credit | $2.0 Billion Dollar Revolving Credit Facility      
Debt Instrument [Line Items]      
Debt term 364 days 364 days  
Aggregate borrowing capacity $ 2,000 $ 2,000  
GM Financial | Level 2      
Debt Instrument [Line Items]      
Fair Value   113,180 112,941
GM Financial | Level 3      
Debt Instrument [Line Items]      
Fair Value   $ 2,679 $ 2,070