DEBT - Schedule of Maturities (Details) $ in Millions	Dec. 31, 2023 CAD ($)
Debt Disclosure [Abstract]
Total	$ 80,438
Less than 1 year	6,067
2 years	6,405
3 years	5,630
4 years	3,377
5 years	5,307
Thereafter	$ 53,652

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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