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Consolidated Statements of Stockholders' Equity - USD ($)
shares in Millions, $ in Millions
Total
Adoption of new accounting standards
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive (Loss) Income
Accumulated Other Comprehensive (Loss) Income
Adoption of new accounting standards
Retained Earnings
Retained Earnings
Adoption of new accounting standards
Beginning Balance (in shares) at Dec. 31, 2018     62          
Beginning Balance at Dec. 31, 2018 $ 1,647 $ 85 $ 0 $ 643 $ (8) $ 0 $ 1,012 $ 85
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income 737           737  
Common stock purchases (54)     (1)     (53)  
Termination of warrants (514)     (514)        
Other comprehensive income (loss), net 12       12      
Share-based compensation 47     47        
Ending Balance (in shares) at Dec. 31, 2019     62          
Ending Balance at Dec. 31, 2019 1,960   $ 0 175 4   1,781  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income 673           673  
Common stock purchases (in shares)     (4)          
Common stock purchases (605)     (11)     (594)  
Termination of warrants (30)     (30)        
Other comprehensive income (loss), net 33       33      
Share-based compensation (in shares)     1          
Share-based compensation 65     65        
Ending Balance (in shares) at Dec. 31, 2020     59          
Ending Balance at Dec. 31, 2020 2,096   $ 0 199 37   1,860  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income 659           659  
Common stock purchases (in shares)     (1)          
Common stock purchases (122)     (2)     (120)  
Other comprehensive income (loss), net (42)       (42)      
Share-based compensation 39     39        
Ending Balance (in shares) at Dec. 31, 2021     58          
Ending Balance at Dec. 31, 2021 $ 2,630   $ 0 $ 236 $ (5)   $ 2,399