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SEGMENTED INFORMATION - Narrative (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Disclosure of operating segments [line items] |  |  |  |
Number of operating business groups | 5 |  | 5 |
Number of reportable segments | 7 |  | 7 |
Revenue |  |  | $ 75,731 | $ 62,752
Interest |  |  | (7,604) | (7,213)
Realized disposition gains in fair value changes or equity |  |  | 2,861 | 1,554
Realized disposition gains related to prior periods |  |  | 2,000 | 499
Realized disposition gains recorded directly in equity |  |  | 751 | 1,100
Realized Disposition Gain (Loss), in Fair Value Changes |  |  | 136 | 29
Asset management |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
Revenue |  |  | 306 | 246
Private Equity |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
Revenue |  |  | 46,252 | 37,161
Elimination of intersegment amounts |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
Revenue | $ 5,381 | $ 3,930 |  |
Intersegment interest income and other revenues | 33 |  | 42 |
Interest |  |  | 28 | 8
Elimination of intersegment amounts | Asset management |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
Revenue | 4,900 |  | 4,930 | 3,278
Elimination of intersegment amounts | Private Equity |  |  |  |
Disclosure of operating segments [line items] |  |  |  |
Revenue |  |  | $ 431 | $ 614
Revenue from construction contracts | $ 418 | $ 610 |  |

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