GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - CAD ($) $ in Millions |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|
| Disclosure of reconciliation of changes in intangible assets and goodwill [line items] | ||
| Intangible assets and goodwill | $ 10,946.8 | $ 11,427.4 |
| Revenue growth rate | 6.50% | |
| Accumulated impairment | ||
| Disclosure of reconciliation of changes in intangible assets and goodwill [line items] | ||
| Intangible assets and goodwill | $ 0.0 | $ 0.0 |
| Bottom of range | ||
| Disclosure of reconciliation of changes in intangible assets and goodwill [line items] | ||
| Discount rate | 7.70% | 7.20% |
| Top of range | ||
| Disclosure of reconciliation of changes in intangible assets and goodwill [line items] | ||
| Discount rate | 8.60% | 9.80% |
| Terminal growth rate | 2.20% |