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CAPITAL MANAGEMENT - Invested Capital (Details) - USD ($) $ in Millions | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019
Disclosure of objectives, policies and processes for managing capital [line items] |  |  |  |  |  |
Total partnership capital | $ 21,451 | $ 21,952 | $ 21,673 | $ 18,743 | $ 19,058 | $ 22,177
Non-controlling interest - in operating subsidiaries | (13,475) |  | (13,954) |  |  |
Deficit | 2,552 |  | 2,752 |  |  |
Accumulated other comprehensive income | (620) |  | (731) |  |  |
Ownership changes | (495) |  | (527) |  |  |
Invested Capital | $ 9,413 | $ 9,410 | $ 9,213 | $ 9,014 | $ 9,011 | $ 9,009
Bottom of range |  |  |  |  |  |
Disclosure of objectives, policies and processes for managing capital [line items] |  |  |  |  |  |
Targeted returns on invested capital | 12.00% |  |  |  |  |
Top of range |  |  |  |  |  |
Disclosure of objectives, policies and processes for managing capital [line items] |  |  |  |  |  |
Targeted returns on invested capital | 15.00% |  |  |  |  |

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