v3.24.0.1
Equity - Narrative (Details)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Feb. 08, 2024
USD ($)
$ / shares
Oct. 31, 2023
$ / shares
Sep. 22, 2023
USD ($)
$ / shares
Aug. 11, 2023
USD ($)
day
$ / shares
shares
Mar. 31, 2026
shares
Mar. 31, 2025
shares
Mar. 31, 2024
shares
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
shares
Feb. 21, 2023
USD ($)
Jan. 03, 2022
USD ($)
Class of Stock [Line Items]                        
Share repurchase program, authorized amount | $                     $ 1,000 $ 1,500
Share repurchase program, additional amount | $                     1,500 $ 1,000
Stock repurchase program, decrease in authorized amount | $                     500  
Stock repurchase program, increase in authorized amount | $                     $ 500  
Preferred stock, shares issued (in shares)               28,750,000 0      
Preferred stock, shares outstanding (in shares)               28,750,000 0      
Preferred stock, redemption price (in dollars per share) | $ / shares     $ 25.00                  
Redemption value | $     $ 575         $ 575 $ 0 $ 0    
Warrants exercisable (in shares)                 12,500,000      
Exercise price of warrants per share (in dollars per share) | $ / shares                 $ 82.80      
Warrants exercisable (in shares)               5,100,000        
Forecast                        
Class of Stock [Line Items]                        
Increase in warrants exercisable (in shares)         2,500,000 2,500,000 2,500,000          
Subsequent Event                        
Class of Stock [Line Items]                        
Share repurchase program, authorized amount | $ $ 3,000                      
AAM Series A Preferred Stock                        
Class of Stock [Line Items]                        
Issuance of common stock related to equity transactions (in shares)       28,750,000                
Preferred stock, aggregate liquidation value | $       $ 1,400                
Preferred stock, dividend rate       6.75%                
Preferred stock, liquidation preference (in dollars per share) | $ / shares     $ 25.00 $ 50.00                
Dividends paid preferred stock (in dollars per share) | $ / shares   $ 0.7500                    
Number of consecutive trading days | day       20                
Preferred stock, par value (in dollars per share) | $ / shares     0.00001                  
AAM Series A Preferred Stock | Subsequent Event                        
Class of Stock [Line Items]                        
Dividend per share of preferred stock (in dollars per share) | $ / shares $ 0.8438                      
AAM Series A Preferred Stock | Minimum                        
Class of Stock [Line Items]                        
Shares issued upon conversion (in shares)       0.5052                
AAM Series A Preferred Stock | Maximum                        
Class of Stock [Line Items]                        
Shares issued upon conversion (in shares)       0.6062                
AAM Series B Preferred Stock                        
Class of Stock [Line Items]                        
Preferred stock, liquidation preference (in dollars per share) | $ / shares     25.00                  
Preferred stock, par value (in dollars per share) | $ / shares     $ 0.00001                  
Common Stock                        
Class of Stock [Line Items]                        
Repurchase of class A common stock (in shares)               7,469,544 9,974,909 3,370,851    
Repurchase of common stock | $               $ 508 $ 588 $ 208    
Issuance of common stock related to equity transactions (in shares)                 4,000,000