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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 |  |

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