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v3.19.3.a.u2

Decommissioning and Other Provisions - Current and Non-Current Portion of Decommissioning and Other Provisions (Details) - CAD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Disclosure of other provisions [line items] |  |  |
Balance | $ 546 | $ 456 | $ 470
Current portion | 58 | 70 |
Non-current portion | 488 | 386 |
Decommissioning and restoration |  |  |
Disclosure of other provisions [line items] |  |  |
Balance | 501 | 407 | 437
Current portion | 36 | 35 |
Non-current portion | 465 | 372 |
Other |  |  |
Disclosure of other provisions [line items] |  |  |
Balance | 45 | 49 | $ 33
Current portion | 22 | 35 |
Non-current portion | $ 23 | $ 14 |

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