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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, 2019 |  | 1,777,927 |  |  |  |  |  |  |
Beginning balance at Dec. 31, 2019 | $ 29,827 | $ 29,231 | $ (9,722) | $ (122) | [1] | $ 2,045 | [2] | $ 21,432 | $ 8,395
Net income | 1,285 |  | 757 |  |  |  |  | 757 | 528
Total other comprehensive income | 85 |  | 0 | 85 | [1] | 0 |  | 85 | 0
Total comprehensive income | 1,370 |  | 757 | 85 | [1] | 0 |  | 842 | 528
Transactions with owners |  |  |  |  |  |  |  |  |
Dividends | (246) | $ 0 | (246) | 0 |  | 0 |  | (246) |
Issuance of 16% interest in Tanzania mines | 238 |  |  |  |  |  |  |  | 238
Number of shares issued on exercise of stock options |  | 40 |  |  |  |  |  |  |
Funding from non-controlling interests | 1 |  |  |  |  |  |  |  | 1
Disbursements to non-controlling interests | (448) |  |  |  |  |  |  |  | (448)
Number of shares issued in dividend reinvestment plan with owners |  | 101 |  |  |  |  |  |  |
Dividend reinvestment plan (note 16) |  | $ 3 | (3) |  |  |  |  |  |
Share-based payments | 4 |  |  |  |  | 4 | [2] | 4 |
Total transactions with owners (shares) |  | 141 |  |  |  |  |  |  |
Total transactions with owners | (451) | $ 3 | (249) |  |  | 4 | [2] | (242) | (209)
Ending balance (shares) at Jun. 30, 2020 |  | 1,778,068 |  |  |  |  |  |  |
Ending balance at Jun. 30, 2020 | 30,746 | $ 29,234 | (9,214) | (37) | [1] | 2,049 | [2] | 22,032 | 8,714
Beginning balance (shares) at Dec. 31, 2019 |  | 1,777,927 |  |  |  |  |  |  |
Beginning balance at Dec. 31, 2019 | 29,827 | $ 29,231 | (9,722) | (122) | [1] | 2,045 | [2] | 21,432 | 8,395
Transactions with owners |  |  |  |  |  |  |  |  |
Funding from non-controlling interests | 11 |  |  |  |  |  |  |  |
Disbursements to non-controlling interests | (1,578) |  |  |  |  |  |  |  |
Ending balance (shares) at Dec. 31, 2020 |  | 1,778,190 |  |  |  |  |  |  |
Ending 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 |  |  |  |  |  |  |  |  |
Dividends | (317) | 0 | (317) | 0 |  | 0 |  | (317) |
Return of capital (note 16) | (250) | $ (250) |  |  |  | 0 |  | (250) | 0
Number of shares issued on exercise of stock options |  | 50 |  |  |  |  |  |  |
Funding from non-controlling interests | 12 |  |  |  |  |  |  |  | 12
Disbursements to non-controlling interests | (471) |  |  |  |  |  |  |  | (471)
Number of shares issued in dividend reinvestment plan with owners |  | 104 |  |  |  |  |  |  |
Dividend reinvestment plan (note 16) |  | $ 3 | (3) |  |  | 0 | [2] |  |
Increase (decrease) through share-based payment transactions, shares |  | 898 |  |  |  |  |  |  |
Share-based payments | 0 | $ 6 |  |  |  | (6) | [2] | 0 |
Total transactions with owners (shares) |  | 1,052 |  |  |  |  |  |  |
Total transactions with owners | (1,026) | $ (241) | (320) | 0 | [1] | (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
[1] | Includes cumulative translation losses at June 30, 2021: $95 million (December 31, 2020: $95 million; June 30, 2020: $92 million)
[2] | Includes additional paid-in capital as at June 30, 2021: $1,996 million (December 31, 2020: $2,002 million; June 30, 2020: $2,011 million).

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