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PREFERRED SHARES (Details) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Sep. 14, 2016
Disclosure of classes of share capital [line items]      
Number of shares issued     115,000,000
Preferred shares $ 20,000,000 $ 20,000,000  
Dividend payables $ 0 0  
Preference shares      
Disclosure of classes of share capital [line items]      
Expected dividend payable as percentage 6.00%    
Brookfield Infrastructure Holdings (Canada) Inc.      
Disclosure of classes of share capital [line items]      
Preferred shares $ 5,000,000 5,000,000  
Brookfield Infrastructure Holdings (Canada) Inc. | Preference shares      
Disclosure of classes of share capital [line items]      
Number of shares issued 196,000    
Brookfield Infrastructure US Holdings I Corporation      
Disclosure of classes of share capital [line items]      
Preferred shares $ 5,000,000 5,000,000  
Brookfield Infrastructure US Holdings I Corporation | Preferred shares      
Disclosure of classes of share capital [line items]      
Redemption price per share $ 5,000,000    
Brookfield Infrastructure US Holdings I Corporation | Preference shares      
Disclosure of classes of share capital [line items]      
Number of shares issued 1    
BIP Bermuda Holdings I Limited      
Disclosure of classes of share capital [line items]      
Preferred shares $ 10,000,000 $ 10,000,000  
BIP Bermuda Holdings I Limited | Preference shares      
Disclosure of classes of share capital [line items]      
Number of shares issued 400,000    
Brookfield Infrastructure Holdings (Canada) Inc. and BIP Bermuda Holdings I Limited | Preferred shares      
Disclosure of classes of share capital [line items]      
Redemption price per share $ 25