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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) | [1] | Other | [2] | Total equity attributable to shareholders | Non-controlling interests
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance (shares) at Dec. 31, 2015 |  | 1,165,081 |  |  |  |  |
Beginning balance at Dec. 31, 2015 | $ 9,455 | $ 20,869 | $ (13,642) | $ (370) | $ 321 | $ 7,178 | $ 2,277
Net income | 861 |  | 655 |  |  | 655 | 206
Total other comprehensive income | 188 |  | 7 | 181 |  | 188 |
Total comprehensive income | 1,049 |  | 662 | 181 |  | 843 | 206
Transactions with owners |  |  |  |  |  |  |
Dividends | (86) |  | (86) |  |  | (86) |
Dividend reinvestment plan (shares) |  | 493 |  |  |  |  |
Dividend reinvestment plan |  | $ 8 | (8) |  |  |  |
Funding from non-controlling interests | 70 |  |  |  |  |  | 70
Other decrease in non-controlling interests | (175) |  |  |  |  |  | (175)
Total transactions with owners (shares) |  | 493 |  |  |  |  |
Total transactions with owners | (191) | $ 8 | (94) |  |  | (86) | (105)
Ending balance (shares) at Dec. 31, 2016 |  | 1,165,574 |  |  |  |  |
Ending balance at Dec. 31, 2016 | 10,313 | $ 20,877 | (13,074) | (189) | 321 | 7,935 | 2,378
Net income | 1,516 |  | 1,438 |  |  | 1,438 | 78
Total other comprehensive income | 38 |  | 18 | 20 |  | 38 |
Total comprehensive income | 1,554 |  | 1,456 | 20 |  | 1,476 | 78
Transactions with owners |  |  |  |  |  |  |
Dividends | (125) |  | (125) |  |  | (125) |
Dividend reinvestment plan (shares) |  | 1,003 |  |  |  |  |
Dividend reinvestment plan |  | $ 16 | (16) |  |  |  |
Decrease in non-controlling interest (note 4b) | (493) |  |  |  |  |  | (493)
Funding from non-controlling interests | 13 |  |  |  |  |  | 13
Other decrease in non-controlling interests | (195) |  |  |  |  |  | (195)
Total transactions with owners (shares) |  | 1,003 |  |  |  |  |
Total transactions with owners | (800) | $ 16 | (141) |  |  | (125) | (675)
Ending balance (shares) at Dec. 31, 2017 |  | 1,166,577 |  |  |  |  |
Ending balance at Dec. 31, 2017 | $ 11,067 | $ 20,893 | $ (11,759) | $ (169) | $ 321 | $ 9,286 | $ 1,781
[1] | Includes cumulative translation adjustments as at December 31, 2017: $73 million loss (2016: $82 million).
[2] | Includes additional paid-in capital as at December 31, 2017: $283 million (December 31, 2016: $283 million) and convertible borrowings - equity component as at December 31, 2017: $38 million (December 31, 2016: $38 million).

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