XML 54 R40.htm IDEA: XBRL DOCUMENT v3.25.2
Business Combinations and Discontinued Operations - Additional Information (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 18 Months Ended
May 18, 2025
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2025
Dec. 31, 2024
Business Combination [Line Items]          
Common stock, shares issued (in shares)   706,729,115 706,729,115 706,729,115 702,224,674
Treasury stock, shares (in shares)   67,211,809 67,211,809 67,211,809 320,994,331
Preferred stock, shares issued (in shares)   4,980,700 4,980,700 4,980,700 4,975,000
Preferred stock, value, issued   $ 0 $ 0 $ 0 $ 0
Goodwill   28,335 28,335 28,335 $ 15,059
Series D Preferred Stock          
Business Combination [Line Items]          
Per annum dividend rate 6.125%        
Series P          
Business Combination [Line Items]          
Per annum dividend rate 6.125%        
Discover          
Business Combination [Line Items]          
Common stock, shares issued (in shares) 1.0192        
Treasury stock, shares (in shares) 256,497,213        
Treasury stock, value $ 50,600        
Preferred stock, shares issued (in shares) 10,700        
Preferred stock, value, issued $ 1,100        
Business combination, stock-based compensation award 136        
Fair value of purchase consideration 51,793        
Launch and integration expenses   299 $ 409 $ 643  
Business combination, allowance for credit losses PCD loan 8,800        
Goodwill $ 13,242        
Business combination, pro-forma information, interest income from continuing operations   1,700      
Business combination, pro-forma information, non-interest income from continuing operations   347      
Business combination, pro forma information, pro forma income (loss) from continuing operations, after tax   $ (6,400)      
Discover | Series P          
Business Combination [Line Items]          
Per annum dividend rate 6.125%        
Preferred stock, shares issued (in shares) 5,000        
Discover | Discover          
Business Combination [Line Items]          
Common stock, shares issued (in shares) 251,679,740