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Risk Management Activities - Maturity of Non-Hedges (Details) - Electricity - Non-hedge - Commodity risk management
Dec. 31, 2024
CAD ($)
$ / MWh
2025  
Disclosure of maturity analysis for non-derivative financial liabilities [line items]  
Notional amount | $ $ 2,628
Average prices | $ / MWh 86.25
2026  
Disclosure of maturity analysis for non-derivative financial liabilities [line items]  
Notional amount | $ $ 0
Average prices | $ / MWh 0
2027  
Disclosure of maturity analysis for non-derivative financial liabilities [line items]  
Notional amount | $ $ 0
Average prices | $ / MWh 0
2028  
Disclosure of maturity analysis for non-derivative financial liabilities [line items]  
Notional amount | $ $ 0
Average prices | $ / MWh 0
2029  
Disclosure of maturity analysis for non-derivative financial liabilities [line items]  
Notional amount | $ $ 0
Average prices | $ / MWh 0
2030 and thereafter  
Disclosure of maturity analysis for non-derivative financial liabilities [line items]  
Notional amount | $ $ 0
Average prices | $ / MWh 0