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DISTRIBUTIONS - Narrative (Details) $ / shares in Units, shares in Millions, $ in Millions | 1 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2020 $ / shares shares | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Nov. 01, 2021 shares | Oct. 01, 2021 shares | Aug. 01, 2021 shares | Jun. 30, 2021 $ / shares | Jul. 01, 2020 $ / shares
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |
Partnership distributions (usd per share) | $ 0.5375 |  |  |  |  |  |  |  |
Exchangeable shares issued as a result of special distribution | shares | 46.3 |  |  |  | 2.1 | 8.1 | 17.9 |  |
Preference Limited Partnership Units, Series 1 |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |
Quarterly distribution rate (as a percent) |  |  |  |  |  |  |  | 4.50% | 3.974%
Quarterly distribution (usd per share) |  |  |  |  |  |  |  | $ 0.2813 | $ 0.2484
Special General Partner |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |
Dividends recognised as incentive distributions to owners | $ |  | $ 206 | $ 183 | $ 158 |  |  |  |  |

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