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BORROWINGS - Non-Recourse Borrowings (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2022
USD ($)
transaction
Dec. 31, 2021
USD ($)
Disclosure of detailed information about borrowings [line items]    
Current $ 2,567 $ 2,701
Non-current 24,000 23,833
Credit facility, maximum borrowing capacity $ 960  
Brazilian electricity transmission operation    
Disclosure of detailed information about borrowings [line items]    
Number of transmission concessions | transaction 5  
Non-recourse borrowings    
Disclosure of detailed information about borrowings [line items]    
Total $ 26,567 26,534
Increase in borrowings 33  
Credit facility, maximum borrowing capacity   2,500
Non-recourse borrowings | Gross Carrying Amount:    
Disclosure of detailed information about borrowings [line items]    
Total 26,736  
Non-recourse borrowings | Gross Carrying Amount: | 2023    
Disclosure of detailed information about borrowings [line items]    
Total 2,605  
Non-recourse borrowings | Canadian diversified midstream operation | Gross Carrying Amount: | 2023    
Disclosure of detailed information about borrowings [line items]    
Total $ 1,200  
Non-recourse borrowings | Brazilian electricity transmission operation    
Disclosure of detailed information about borrowings [line items]    
Derecognition of borrowings   600
Non-recourse borrowings | Brazilian electricity transmission operation | Held for sale    
Disclosure of detailed information about borrowings [line items]    
Total   $ 400