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Consolidated Statements of Stockholders' Equity - USD ($)
shares in Millions, $ in Millions
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive (Loss) Income
Retained Earnings
Beginning Balance (in shares) at Dec. 31, 2019   62      
Beginning 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
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 792       792
Common stock purchases (in shares)   (1)      
Common stock purchases (400)   (5)   (395)
Other comprehensive income (loss), net (155)     (155)  
Share-based compensation (in shares)   1      
Share-based compensation 97   97    
Ending Balance (in shares) at Dec. 31, 2022   58      
Ending Balance at Dec. 31, 2022 $ 2,964 $ 0 $ 328 $ (160) $ 2,796