v3.22.4
Equity In Net Assets Of Nonconsolidated Affiliates (Details)
$ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
numberOfJointVenture
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Schedule of Equity Method Investments [Line Items]      
Equity income (loss) $ 837 $ 1,301 $ 674
Equity in net assets of nonconsolidated affiliates 10,176 9,677 8,406
Basis Difference $ 4,300 4,300  
Number of joint ventures engaged in production, import and sale of products | numberOfJointVenture 4    
SGM      
Schedule of Equity Method Investments [Line Items]      
Number of interests in other joint ventures | numberOfJointVenture 3    
Automotive China      
Schedule of Equity Method Investments [Line Items]      
Equity income (loss) $ 677 1,098 512
Equity in net assets of nonconsolidated affiliates 6,714 7,156  
Ultium Cells Holdings LLC      
Schedule of Equity Method Investments [Line Items]      
Equity in net assets of nonconsolidated affiliates 1,463 650  
Other joint ventures      
Schedule of Equity Method Investments [Line Items]      
Equity income (loss) 159 203 $ 162
Equity in net assets of nonconsolidated affiliates $ 1,998 $ 1,871  
SGM      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 50.00% 50.00%  
SGM | SAIC      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 50.00%    
PATAC      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 50.00% 50.00%  
SGMS      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 49.00% 49.00%  
SGMW      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 44.00% 44.00%  
Shanghai OnStar      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 40.00% 40.00%  
Shanghai OnStar | SGM      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 20.00%    
SGM Norsom      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 25.00% 25.00%  
SGM Norsom | SGM      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 50.00%    
SGM Norsom | SAIC      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 25.00%    
SGM DY      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 25.00% 25.00%  
SGM DY | SGM      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 50.00%    
SGM DY | SAIC      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 25.00%    
SGM DYPT      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 25.00% 25.00%  
SGM DYPT | SGM      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 50.00%    
SGM DYPT | SAIC      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 25.00%    
SAIC-GMAC      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 35.00% 35.00%  
SAIC-GMAC | SGM      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 20.00%    
SAIC-GMAC | Shanghai Automotive Group Finance Company Ltd.      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 45.00%    
SAIC-GMF Leasing Co., Ltd.      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 35.00% 35.00%  
SAIC-GMF Leasing Co., Ltd. | SGM      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 20.00%    
SAIC-GMF Leasing Co., Ltd. | SAIC Financial Holdings Company      
Schedule of Equity Method Investments [Line Items]      
Ownership Percentage 45.00%