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Investments - Change in Investments (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Change In Investments [Roll Forward] |  |  |
Equity income (loss) | $ 9 | $ 9 | $ 1
Changes in foreign exchange rates | 10 | 0 | 0
SP Skookumchuck Investment, LLC | Equity-accounted |  |  |
Change In Investments [Roll Forward] |  |  |
Beginning balance | 93 | 85 |
Equity income (loss) | 10 | 12 |
Investment | 0 |  |
Distributions received | (5) | (4) |
Changes in foreign exchange rates | (7) |  |
Net change in fair value recognized in OCI | 0 |  |
Ending balance | 105 | 93 | 85
EMG | Equity-accounted |  |  |
Change In Investments [Roll Forward] |  |  |
Beginning balance | 12 | 15 |
Equity income (loss) | (1) | (3) |
Investment | 0 |  |
Distributions received | 0 | 0 |
Changes in foreign exchange rates | (1) |  |
Net change in fair value recognized in OCI | 0 |  |
Ending balance | 12 | 12 | 15
EIP | FVTPL |  |  |
Change In Investments [Roll Forward] |  |  |
Beginning balance | 0 | 0 |
Equity income (loss) | 0 | 0 |
Investment | 10 |  |
Distributions received | 0 | 0 |
Changes in foreign exchange rates | (1) |  |
Net change in fair value recognized in OCI | 0 |  |
Ending balance | 11 | 0 | 0
Ekona | FVTOCI |  |  |
Change In Investments [Roll Forward] |  |  |
Beginning balance | 0 | 0 |
Equity income (loss) | 0 | 0 |
Investment | 2 |  |
Distributions received | 0 | 0 |
Changes in foreign exchange rates | 0 |  |
Net change in fair value recognized in OCI | (1) |  |
Ending balance | 1 | 0 | 0
Consolidated structured entities |  |  |
Change In Investments [Roll Forward] |  |  |
Beginning balance | 105 | 100 |
Equity income (loss) | 9 | 9 | 1
Investment | 12 |  |
Distributions received | (5) | (4) |
Changes in foreign exchange rates | (9) |  |
Net change in fair value recognized in OCI | (1) |  |
Ending balance | $ 129 | $ 105 | $ 100

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