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Consolidated Statements of Changes in Equity - USD ($)
shares in Thousands, $ in Millions
Total
Capital stock
Retained earnings (deficit)
Accumulated other comprehensive income (loss)
Other
Total equity attributable to shareholders
Non-controlling interests
Beginning balance (shares) at Dec. 31, 2020   1,778,190          
Beginning balance at Dec. 31, 2020 $ 31,710 $ 29,236 $ (7,949) $ 14 [1] $ 2,040 [2] $ 23,341 $ 8,369
Net income 1,524 0 949 0 0 949 575
Total other comprehensive income (34) 0 0 (34) [1] 0 (34) 0
Total comprehensive income 1,490 $ 0 949 (34) [1] 0 915 575
Transactions with owners              
Number of shares issued on exercise of stock options   50          
Number of shares issued in dividend reinvestment plan with owners   104          
Number of share options exercised in share-based payment arrangement   898          
Number of shares issued in transactions with owners   1,052          
Dividends (317) $ 0 (317) 0 0 (317) 0
Return of capital (note 15) (250) (250) 0 0 0 (250) 0
Issued on exercise of stock options 0 0 0 0 0 0 0
Funding from non-controlling interests 12 0 0 0 0 0 12
Disbursements to non-controlling interests (note 16) (471) 0 0 0 0 0 (471)
Dividend reinvestment plan (note 15) 0 3 (3) 0 0 0 0
Share-based payments 0 6 0 0 (6) [2] 0 0
Total transactions with owners (1,026) $ (241) (320) 0 (6) [2] (567) (459)
Ending balance (shares) at Jun. 30, 2021   1,779,242          
Ending balance at Jun. 30, 2021 32,174 $ 28,995 (7,320) (20) [1] 2,034 [2] 23,689 8,485
Beginning balance (shares) at Dec. 31, 2020   1,778,190          
Beginning balance at Dec. 31, 2020 31,710 $ 29,236 (7,949) 14 [1] 2,040 [2] 23,341 8,369
Ending balance (shares) at Dec. 31, 2021   1,779,331          
Ending balance at Dec. 31, 2021 32,307 $ 28,497 (6,566) (23) [1] 1,949 [2] 23,857 8,450
Net income 1,423 0 926 0 0 926 497
Total other comprehensive income 32 0 0 32 [1] 0 32 0
Total comprehensive income 1,455 $ 0 926 32 [1] 0 958 497
Transactions with owners              
Number of shares issued in dividend reinvestment plan with owners   105          
Increase (decrease) through share repurchase program, shares   (8,500)          
Number of shares issued in transactions with owners   (8,395)          
Dividends (531) $ 0 (531) 0 0 (531) 0
Disbursements to non-controlling interests (note 16) (524) 0 0 0 0 0 (524)
Dividend reinvestment plan (note 15) 0 2 (2) 0 0 0 0
Increase (decrease) through treasury share transactions, equity (173) (136) 0 0 (37) [2] (173) 0
Total transactions with owners (1,228) $ (134) (533) 0 (37) [2] (704) (524)
Ending balance (shares) at Jun. 30, 2022   1,770,936          
Ending balance at Jun. 30, 2022 $ 32,534 $ 28,363 $ (6,173) $ 9 [1] $ 1,912 [2] $ 24,111 $ 8,423
[1] Includes cumulative translation losses at June 30, 2022: $93 million (December 31, 2021: $94 million; June 30, 2021: $95 million)
[2] Includes additional paid-in capital as at June 30, 2022: $1,874 million (December 31, 2021: $1,911 million; June 30, 2021: $1,996 million).