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Consolidated Statements of Equity - USD ($)
$ in Millions
Common Stock
Additional Paid-in Capital
Treasury Stock
Accumulated Other Comprehensive Loss
Retained Earnings
Non-Controlling Interests
Total
Balance at Dec. 31, 2017 $ 1 $ 1,138 $ (494) $ (1,013) $ 3,259 $ 26  
Increase (Decrease) in Stockholders' Equity              
Net income (loss)         443 11  
Dividends declared         (173) (9)  
Repurchases of common stock, net   (33) (624)        
Share-based compensation, net of issuance   (5) 27        
Other comprehensive income (loss)       (134)   (7)  
Other   (4)   (7) 7 (1)  
Balance at Dec. 31, 2018 1 1,096 (1,091) (1,154) 3,536 20  
Increase (Decrease) in Stockholders' Equity              
Net income (loss)         413 11  
Dividends declared         (169) (8)  
Repurchases of common stock, net   32 31        
Share-based compensation, net of issuance   9 20        
Other comprehensive income (loss)       (4)   (2)  
Balance at Dec. 31, 2019 1 1,137 (1,040) (1,158) 3,780 21 $ 2,741
Increase (Decrease) in Stockholders' Equity              
Net income (loss)         348 10  
Dividends declared         (171) (8)  
Share-based compensation, net of issuance   13 16        
Other comprehensive income (loss)       25   (1)  
Other           (1)  
Balance at Dec. 31, 2020 $ 1 $ 1,150 $ (1,024) $ (1,133) $ 3,957 $ 21 $ 2,972