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ORGANIZATION AND DESCRIPTION OF OUR BUSINESS - Narrative (Details)
Mar. 30, 2020
USD ($)
agreement
$ / shares
shares
Dec. 31, 2021
USD ($)
Disclosure of corporate information [line items]    
Class A shares to limited partner units, conversion ratio 0.11111  
Exchangeable shares issued as a result of the holding LP distribution, Brookfield (in shares) | shares 13,700,000  
Exchangeable shares issued as a result of the holding LP distribution, Partnership (in shares) | shares 32,600,000  
Percentage of issued and outstanding exchangeable shares held by holders of units 70.40%  
Percentage of issued and outstanding exchangeable shares held by Brookfield 29.60%  
Percentage of voting interest in company 82.40%  
Credit facility, maximum borrowing capacity   $ 1,000,000,000
Equity commitment from parent $ 1,000,000,000  
Class C exchangeable shares, conversion ratio (in shares) | shares 1  
Exchangeable shares listing term 5 years  
Preferred shares (in dollars per share) | $ / shares $ 25.00  
Subsidiaries    
Disclosure of corporate information [line items]    
Percentage of voting interest in company 75.00%  
Holders of exchangeable shares    
Disclosure of corporate information [line items]    
Percentage of voting interest in company 25.00%  
Brookfield Infrastructure Partners L.P    
Disclosure of corporate information [line items]    
Percentage of voting interest in company 7.40%  
Holders of exchangeable shares, excluding Parent    
Disclosure of corporate information [line items]    
Percentage of voting interest in company 17.60%  
Senior Unsecured Revolving Credit Facility    
Disclosure of corporate information [line items]    
Number of credit agreements | agreement 2  
Borrowings maturity, term 10 years  
Credit facility, maximum borrowing capacity $ 1,000,000,000  
Senior Unsecured Revolving Credit Facility | Subsidiaries    
Disclosure of corporate information [line items]    
Credit facility, maximum borrowing capacity 1,000,000,000  
Senior Unsecured Revolving Credit Facility | Brookfield Infrastructure Partners L.P    
Disclosure of corporate information [line items]    
Credit facility, maximum borrowing capacity $ 1,000,000,000