v3.23.3
Stockholders' Equity and Noncontrolling Interests - Narrative (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended 9 Months Ended
Mar. 31, 2022
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Aug. 31, 2022
Jun. 30, 2022
Class of Stock [Line Items]                    
Preferred stock shares authorized (in shares)   2,000,000,000       2,000,000,000   2,000,000,000    
Common stock shares authorized (in shares)   5,000,000,000       5,000,000,000   5,000,000,000    
Preferred stock shares outstanding (in shares)   0       0   0    
Preferred stock shares issued (in shares)   0       0   0    
Common stock shares issued (in shares)   1,400,000,000       1,400,000,000   1,400,000,000    
Common stock shares outstanding (in shares)   1,400,000,000       1,400,000,000   1,400,000,000    
Cash dividends paid on common stock   $ 123 $ 124 $ 126 $ 130 $ 373 $ 130      
Purchase of common stock   250 $ 500 $ 369 $ 1,500          
Cruise Stock Incentive Awards                    
Class of Stock [Line Items]                    
Cash used to settle awards           206 327      
GM Cruise Holdings LLC                    
Class of Stock [Line Items]                    
Payments to acquire additional investment $ 1,350                  
GM Cruise Holdings LLC                    
Class of Stock [Line Items]                    
Net income attributable to shareholders and transfers to the noncontrolling interests           8,000 7,100      
Common Class B                    
Class of Stock [Line Items]                    
Recorded value of vested awards   93       93   $ 60    
Common Class B | Cruise Stock Incentive Awards                    
Class of Stock [Line Items]                    
Cash used to settle awards   70       206        
Common Class B | GM Cruise Holdings LLC                    
Class of Stock [Line Items]                    
Amount of stock issued during period   104       278        
Payments for statutory tax withholdings   $ 57       $ 156        
Cruise Preferred Shares                    
Class of Stock [Line Items]                    
Decrease in equity due to preferred stock redemption             $ 820      
SoftBank | Cruise Class A-1, Class F and Class G Preferred Shares | GM Cruise Holdings LLC                    
Class of Stock [Line Items]                    
Payments for repurchase of equity $ 2,100                  
Common Stock Repurchase Program                    
Class of Stock [Line Items]                    
Increased capacity under common stock repurchase plan                 $ 5,000  
Remaining authorized repurchase amount                   $ 3,300
Common stock shares repurchased during period           30,000,000 38,000,000      
Purchase of common stock           $ 1,100 $ 1,500