OPERATING SEGMENTS - Geographical Information (Details) - CAD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Disclosure of geographical areas [line items] | ||
| Revenue | $ 7,515.5 | $ 6,761.3 |
| Non-current assets | 18,394.2 | 18,384.5 |
| Canada | ||
| Disclosure of geographical areas [line items] | ||
| Revenue | 2,946.6 | 2,676.9 |
| Non-current assets | 6,577.0 | 6,236.8 |
| USA | ||
| Disclosure of geographical areas [line items] | ||
| Revenue | 4,568.9 | 4,084.4 |
| Non-current assets | $ 11,817.2 | $ 12,147.7 |