PENSION AND OTHER POSTRETIREMENT BENEFITS - Assumed Health Care Cost Trend Rates (Details) |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Canada | ||
| MEDICAL COST TRENDS (as percent) | ||
| Health care cost trend rate assumed for next year | 4.00% | 4.00% |
| Rate to which the cost trend is assumed to decline (ultimate trend rate) | 4.00% | 4.00% |
| US | ||
| MEDICAL COST TRENDS (as percent) | ||
| Health care cost trend rate assumed for next year | 3.20% | 4.70% |
| Rate to which the cost trend is assumed to decline (ultimate trend rate) | 3.70% | 3.30% |
| US | Enbridge Employee Services, Inc. Health Reimbursement Account Plan | ||
| MEDICAL COST TRENDS (as percent) | ||
| Three- year increase in healthcare costs (percent) | 5.00% |