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Asset Impairment Charges - Disclosure of Fair Value Less Cost of Disposal (Details)
Dec. 31, 2022
Dec. 31, 2021
Canada | Wind and Solar | Contract Discount Rate    
Disclosure of detailed information about property, plant and equipment [line items]    
Current year Contract and Merchant discount rates 6.40%  
Prior period Contract and Merchant discount rates   500.00%
Canada | Wind and Solar | Merchant Discount Rate    
Disclosure of detailed information about property, plant and equipment [line items]    
Current year Contract and Merchant discount rates 7.10%  
Prior period Contract and Merchant discount rates   500.00%
Canada | Hydro | Contract Discount Rate    
Disclosure of detailed information about property, plant and equipment [line items]    
Current year Contract and Merchant discount rates 5.90%  
Prior period Contract and Merchant discount rates   360.00%
Canada | Hydro | Merchant Discount Rate    
Disclosure of detailed information about property, plant and equipment [line items]    
Current year Contract and Merchant discount rates 6.40%  
Prior period Contract and Merchant discount rates   490.00%
US | Wind and Solar | Contract Discount Rate    
Disclosure of detailed information about property, plant and equipment [line items]    
Current year Contract and Merchant discount rates 6.50%  
Prior period Contract and Merchant discount rates   510.00%
US | Wind and Solar | Merchant Discount Rate    
Disclosure of detailed information about property, plant and equipment [line items]    
Current year Contract and Merchant discount rates 7.70%  
Prior period Contract and Merchant discount rates   500.00%