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Consolidated Statements of Changes In Stockholders' Equity - USD ($)
$ in Millions
Total
Common Stock
Additional Paid-In Capital
Accumulated other comprehensive loss
Retained Income
Balance at Beginning of Year at Dec. 31, 2018 $ 15,362 $ 269 $ 2,216 $ (563) $ 13,440
Comprehensive income:          
Net income 2,722       2,722
Other comprehensive income (loss) 72     72  
Total comprehensive income 2,794        
Dividends on common stock (949)       (949)
Share repurchases (2,099) (11) (88)   (2,000)
Stock-based compensation 76 1 81   (6)
Balance at End of Year at Dec. 31, 2019 15,184 259 2,209 (491) 13,207
Comprehensive income:          
Net income 2,013       2,013
Other comprehensive income (loss) (103)     (103)  
Total comprehensive income 1,910        
Dividends on common stock (960)       (960)
Share repurchases (1,439) (7) (59)   (1,373)
Stock-based compensation 96 2 98   (4)
Balance at End of Year at Dec. 31, 2020 14,791 254 2,248 (594) 12,883
Comprehensive income:          
Net income 3,005       3,005
Other comprehensive income (loss) 192     192  
Total comprehensive income 3,197        
Dividends on common stock (1,028)       (1,028)
Share repurchases (3,390) (13) (106)   (3,271)
Stock-based compensation 71 1 73   (3)
Balance at End of Year at Dec. 31, 2021 $ 13,641 $ 242 $ 2,215 $ (402) $ 11,586