REVENUE - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 CAD ($)
Revenue from Contract with Customer [Abstract]
Revenue recognized	$ 166
Increase (decrease) in contract with customers, liability	453
Remaining performance obligation	58,600
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 7,600
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, period	1 year