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SUBSIDIARY EQUITY OBLIGATIONS - Schedule of Subsidiary Equity Obligations (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Disclosure of financial liabilities [line items] |  |
Subsidiary preferred equity units | $ 1,585 | $ 1,679
Limited-life funds and redeemable fund units | 1,538 | 1,456
Total | 4,308 | 3,699
Real Estate |  |
Disclosure of financial liabilities [line items] |  |
Limited-life funds and redeemable fund units | 859 | 864
Subsidiary preferred shares and capital | 1,185 | 564
Infrastructure |  |
Disclosure of financial liabilities [line items] |  |
Limited-life funds and redeemable fund units | 545 | 517
Corporate Activities |  |
Disclosure of financial liabilities [line items] |  |
Limited-life funds and redeemable fund units | $ 134 | $ 75

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