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RELATED PARTY TRANSACTIONS - Narrative (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
RELATED PARTY TRANSACTIONS |  |  |
Affiliate loan receivable | $ 954 | $ 1,108 |
Interest income | $ 39 | $ 44 | $ 40
Minimum |  |  |
RELATED PARTY TRANSACTIONS |  |  |
Annual interest rate on the loans (as a percent) | 3.00% |  |
Maximum |  |  |
RELATED PARTY TRANSACTIONS |  |  |
Annual interest rate on the loans (as a percent) | 8.00% |  |

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