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Statements of Changes in Stockholders' Equity - USD ($)
$ in Millions
Total
Common stock [member]
Additional paid-in capital [member]
Other Equity Reserves And Subordinated Notes [Member]
Retained earnings [member]
Total controlling interest [Member]
Non-controlling interests
Balance as of (Restated balance [member]) at Dec. 31, 2017 $ 11,053 $ 318 $ 10,013 $ (2,472) $ 1,622 $ 9,481 $ 1,572
Effects from adoption of IFRIC 23 6       6 6  
Balance as of at Dec. 31, 2018 11,059 318 10,013 (2,472) 1,628 9,487 1,572
Net income for the period 179       143 143 36
Other comprehensive income (loss) for the period (217)     (112)   (112) (105)
Total of other comprehensive income (loss) for the period (38)     (112) 143 31 (69)
Dividends (150)       (150) (150)  
Effects of mandatorily convertible securities     151 (151)      
Own shares purchased under share repurchase program (50)   (75) 25   (50)  
Share-based compensation 32   17 15   32  
Coupons paid on perpetual debentures (29)     (29)   (29)  
Balance as of (Restated balance [member]) at Dec. 31, 2019   318 10,106 (2,724) 1,621 9,321 1,503
Balance as of at Dec. 31, 2019 10,824            
Net income for the period (1,446)       (1,467) (1,467) 21
Other comprehensive income (loss) for the period (348)     (146)   (146) (202)
Total of other comprehensive income (loss) for the period (1,794)     (146) (1,467) (1,613) (181)
Own shares purchased under share repurchase program (83)   (50) (33)   (83)  
Restitution of retained earnings     (2,481)   2,481    
Changes in non-controlling interest       445   445 (445)
Share-based compensation 29     29   29  
Coupons paid on perpetual debentures (24)     (24)   (24)  
Balance as of at Dec. 31, 2020 8,952 318 7,575 (2,453) 2,635 8,075 877
Net income for the period 778       753 753 25
Other comprehensive income (loss) for the period (42)     (31)   (31) (11)
Total of other comprehensive income (loss) for the period 736     (31) 753 722 14
Own shares purchased under share repurchase program 0   (83) 83      
Changes in non-controlling interest and repayment of perpetual debentures (447)           (447)
Share-based compensation 77     77   77  
Issuance of subordinated notes 994     994   994  
Coupons paid on perpetual debentures and subordinated notes (41)     (41)   (41)  
Balance as of at Dec. 31, 2021 $ 10,271 $ 318 $ 7,492 $ (1,371) $ 3,388 $ 9,827 $ 444