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SEGMENTED INFORMATION - Reconciliation of FFO to Equity Accounted Investments (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Disclosure of operating segments [abstract] |  |
Consolidated equity accounted income | $ 2,613 | $ 2,451
Non-FFO items from equity accounted investments | 1,840 | 1,355
FFO from equity accounted investments | $ 4,453 | $ 3,806

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