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v3.19.3.a.u2

Capital Disclosure of components of capital (Details) - CAD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Jun. 28, 2018 | Dec. 31, 2016
Disclosure of components of capital [Line Items] |  |  |  |  |  |
Long-term debt |  | $ 3,212 | $ 3,267 |  |  |
Increase (decrease) in financial liabilities |  | (55) |  |  |  |
Exchangeable securities |  | 326 | 0 |  |  |
Increase (decrease) in exchangeable securities |  | 326 |  |  |  |
Equity |  | 4,062 | 4,134 | $ 4,385 |  |
Preferred shares |  |  |  |  | $ 33 |
Contributed surplus |  | 42 | 11 |  |  |
Deficit |  | (1,455) | (1,496) |  |  |
Accumulated other comprehensive income |  | 454 | 481 |  |  |
Non-controlling interests |  | 1,101 | 1,137 |  |  |
Cash and cash equivalents |  | (411) | (89) | (314) |  | $ (305)
Increase (decrease) in cash and cash equivalents |  | (322) | 225 | (9) |  |
Current restricted cash and cash equivalents |  | (32) | (66) |  |  |
Fair value asset of hedging instruments on long-term debt |  | (7) | (10) |  |  |
Increase (decrease) in hedging instruments, liabilities |  | 3 |  |  |  |
Total capital |  | 7,172 | 7,275 |  |  |
Increase (decrease) in capital |  | (103) |  |  |  |
Common shares |  |  |  |  |  |
Disclosure of components of capital [Line Items] |  |  |  |  |  |
Equity |  | 2,978 | 3,059 |  |  |
Increase (decrease) in equity |  | (81) |  |  |  |
Preferred shares |  |  |  |  |  |
Disclosure of components of capital [Line Items] |  |  |  |  |  |
Equity |  | 942 | 942 |  |  |
Increase (decrease) in equity |  | 0 |  |  |  |
Contributed surplus |  |  |  |  |  |
Disclosure of components of capital [Line Items] |  |  |  |  |  |
Equity |  | 42 | 11 | 10 |  |
Increase (decrease) in equity |  | 31 |  |  |  |
Deficit |  |  |  |  |  |
Disclosure of components of capital [Line Items] |  |  |  |  |  |
Equity |  | (1,455) | (1,496) | (1,209) |  |
Increase (decrease) in equity |  | 41 |  |  |  |
Accumulated other comprehensive income |  |  |  |  |  |
Disclosure of components of capital [Line Items] |  |  |  |  |  |
Equity | [1] | 454 | 481 | 489 |  |
Increase (decrease) in equity |  | (27) |  |  |  |
Non-controlling interests |  |  |  |  |  |
Disclosure of components of capital [Line Items] |  |  |  |  |  |
Equity |  | 1,101 | 1,137 | $ 1,059 |  |
Increase (decrease) in equity |  | (36) |  |  |  |
TransAlta OCP |  |  |  |  |  |
Disclosure of components of capital [Line Items] |  |  |  |  |  |
Current restricted cash and cash equivalents |  | (10) | $ (27) |  |  |
Increase (decrease) in restricted cash and cash equivalents |  | $ 17 |  |  |  |
[1] | (1) Refer to Note 28 for details on components of, and changes in, accumulated other comprehensive income (loss).

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