COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	Dec. 31, 2024 CAD ($)
Purchase of services, pipe and other materials, including transportation
Total	$ 14,019
Less than 1 year	4,260
2 years	2,047
3 years	1,755
4 years	1,535
5 years	1,200
Thereafter	3,222
Maintenance agreements
Total	452
Less than 1 year	57
2 years	56
3 years	57
4 years	36
5 years	36
Thereafter	210
Right-of-ways commitments
Total	981
Less than 1 year	52
2 years	48
3 years	53
4 years	49
5 years	49
Thereafter	730
Total
Total	15,452
Less than 1 year	4,369
2 years	2,151
3 years	1,865
4 years	1,620
5 years	1,285
Thereafter	$ 4,162