SHORT-TERM BORROWINGS - Overcollateralization in Receivables Securitization Program (Details) - CAD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Disclosure of detailed information about borrowings [line items] | |||
| Short-term borrowings from buyer | $ (4,000) | $ (2,959) | |
| Receivables securitization program | |||
| Disclosure of detailed information about borrowings [line items] | |||
| Proceeds received from short-term borrowings | 400 | 800 | |
| Receivables sold to buyer as security | 3,251 | 3,186 | |
| Short-term borrowings from buyer | (2,000) | (2,000) | $ (1,600) |
| Overcollateralization | 1,251 | $ 1,186 | |
| Receivables securitization program | Maximum | |||
| Disclosure of detailed information about borrowings [line items] | |||
| Proceeds received from short-term borrowings | $ 2,400 | ||