LEASES - Narrative (Details) - CAD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Lessee, Lease, Description [Line Items] | |||
| Operating lease, expense | $ 132 | $ 131 | $ 118 |
| Operating lease, payments | $ 128 | $ 129 | $ 123 |
| Minimum | |||
| Lessee, Lease, Description [Line Items] | |||
| Remaining lease term | 2 months | ||
| Lessor, operating lease, remaining lease term | 3 months | ||
| Maximum | |||
| Lessee, Lease, Description [Line Items] | |||
| Remaining lease term | 41 years | ||
| Lessor, operating lease, remaining lease term | 27 years | ||