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FINANCIAL LIABILITIES - Exchangeable and Class B Shares (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of financial liabilities [line items] |  |  |  |
Ending balance, unit price (in dollars per share) |  | $ 60.81 |  |
Beginning balance, exchangeable and Class B shares |  | $ 2,221 |  |
Remeasurement of liability, value |  | (447) | $ (511) | $ 0
Ending balance, exchangeable and Class B shares |  | 4,466 | 2,221 |
Equity issued, exchangeable shares (in shares) | $ 2,100,000 |  |  |
Exchangeable shares issued, net of costs |  | $ 128 | $ 0 | $ 0
Exchangeable shares outstanding (Shares) |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |
Beginning balance (in shares) |  | 44,960,449 | 0 |
Share issuance (in shares) |  | 28,130,103 | 46,349,323 |
Issuance of exchangeable LP units (in shares) |  | 371,327 |  |
Share exchanges (in shares) |  | (24,366) | (1,388,874) |
Remeasurement of liability (in shares) |  | 0 | 0 |
Ending balance (in shares) |  | 73,437,513 | 44,960,449 | 0
Class B shares outstanding (Shares) |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |
Beginning balance (in shares) |  | 1 | 0 |
Share issuance (in shares) |  | 0 | 1 |
Issuance of exchangeable LP units (in shares) |  | 0 |  |
Share exchanges (in shares) |  | 0 | 0 |
Remeasurement of liability (in shares) |  | 0 | 0 |
Ending balance (in shares) |  | 1 | 1 | 0
Exchangeable and class B shares (US$ Millions) |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |
Beginning balance, exchangeable and Class B shares |  | $ 2,221 | $ 0 |
Share issuance, value |  | 1,776 | 1,765 |
Issuance of exchangeable LP units, value |  | 23 |  |
Exchangeable share conversion, value |  | (1) | (55) |
Remeasurement of liability, value |  | 447 | 511 |
Ending balance, exchangeable and Class B shares |  | $ 4,466 | $ 2,221 | $ 0
Share capital |  |  |  |
Disclosure of financial liabilities [line items] |  |  |  |
Ending balance, unit price (in dollars per share) | $ 62.70 |  |  |

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