XML 124 R104.htm IDEA: XBRL DOCUMENT v3.10.0.1
Stockholders' Equity and Noncontrolling Interests Preferred and Common Stock (Details)
$ / shares in Units, shares in Millions
 1 Months Ended 12 Months Ended
Oct. 31, 2018
USD ($)
Sep. 30, 2018
USD ($)
$ / shares
Jun. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
$ / shares
Dec. 31, 2018
USD ($)
Votes
$ / shares
shares
Dec. 31, 2017
USD ($)
shares
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2027
USD ($)
Class of Stock [Line Items]                
Preferred stock shares authorized | shares         2,000      
Common stock shares authorized | shares         5,000      
Common stock number of shares issued | shares         1,400      
Common stock shares outstanding | shares         1,400 1,400    
Dividends declared per common share (in dollars per share) | $ / shares         $ 1.52      
Cash dividends paid on common stock         $ 2,144,000,000 $ 2,215,000,000 $ 2,337,000,000  
Number of votes per share | Votes         1      
Common shares purchased during period | shares         3 120 77  
Amount of common stock purchased during period         $ 190,000,000 $ 4,492,000,000 $ 2,500,000,000  
Guarantees - maximum liability         $ 2,400,000,000 $ 1,900,000,000    
GM Cruise [Member]                
Class of Stock [Line Items]                
Investment amount     $ 1,100,000,000          
GM Cruise [Member] | Convertible Preferred Stock [Member]                
Class of Stock [Line Items]                
Annual dividend rate         7.00%      
Proceeds from issuance of preferred stock     $ 900,000,000          
GM Cruise [Member] | SoftBank Investment Holdings Limited [Member] | Convertible Preferred Stock [Member]                
Class of Stock [Line Items]                
Ownership interest     10.90%          
Additional purchase amount         $ 1,350,000,000      
Ownership interest after completed purchase obligation         18.60%      
GM Cruise [Member] | Honda Motor Co., Ltd [Member] | Common Class E [Member]                
Class of Stock [Line Items]                
Ownership interest 5.70%              
Proceeds from issuance of common stock $ 750,000,000              
Agreed upon future contributions $ 2,000,000,000              
GM Korea [Member] | Korea Development Bank [Member] | Class B Preferred Shares [Member]                
Class of Stock [Line Items]                
Annual dividend rate         1.00%      
Proceeds from issuance of preferred stock         $ 720,000,000      
Period to call preferred shares     6 years          
Financial Guarantee [Member] | GM Korea [Member]                
Class of Stock [Line Items]                
Guarantees - maximum liability         2,800,000,000.0      
Forecast [Member] | GM Korea [Member]                
Class of Stock [Line Items]                
Planned capital expenditures               $ 2,000,000,000
GM Financial [Member] | Fixed-to-Floating Rate Cumulative Perpetual Preferred Stock, Series B [Member]                
Class of Stock [Line Items]                
Preferred stock issued   $ 500,000,000            
Preferred stock par value (in dollars per share) | $ / shares   $ 0.01            
Liquidation preference of preferred stock per share (in dollars per share) | $ / shares   $ 1,000            
Annual dividend rate   6.50%            
GM Financial [Member] | Series A Preferred Stock [Member]                
Class of Stock [Line Items]                
Preferred stock issued       $ 1,000,000,000        
Preferred stock par value (in dollars per share) | $ / shares       $ 0.01        
Liquidation preference of preferred stock per share (in dollars per share) | $ / shares       $ 1,000        
Annual dividend rate       5.75%        
GM                
Class of Stock [Line Items]                
Amount of common stock purchased during period         $ 100,000,000