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ORGANIZATION AND DESCRIPTION OF OUR BUSINESS - Narrative (Details) | Mar. 30, 2020 USD ($) agreement $ / shares shares | Dec. 31, 2020 USD ($) | Jul. 29, 2020
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Disclosure of corporate information [line items] |  |  |
Class A shares to limited partner units, conversion ratio | shares | 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% |  | 19.30%
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 |  |

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