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Other Income, Net (Components of other income (expenses), net) (Details) - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
9. Other Income, Net    
Allowance for equity funds used during construction $ 52 $ 61
TECO Guatemala Holdings award 63 0
Other 30 32
Other income (expenses), net $ 145 $ 93