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CAPITAL MANAGEMENT (Tables) | 12 Months Ended
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Dec. 31, 2020
Disclosure of Capital Management [Abstract] |
Schedule of invested capital | We define Invested Capital as partnership capital removing the impact of the following items: non-controlling interest - in operating subsidiaries, retained earnings or deficit, accumulated other comprehensive income and ownership changes.
US$ MILLIONS | 2020 |  | 2019
Partnership Capital | $ | 21,673 |  |  | $ | 22,177 |
Remove impact of the following items since inception: |  |  |
Non-controlling interest - in operating subsidiaries | (13,954) |  |  | (14,113) |
Deficit | 2,752 |  |  | 2,048 |
Accumulated other comprehensive income | (731) |  |  | (705) |
Ownership changes | (527) |  |  | (398) |
Invested Capital | $ | 9,213 |  |  | $ | 9,009 |
The following table presents the change in Invested Capital during year ended December 31, 2020:
US$ MILLIONS | 2020 |  | 2019
Opening balance | $ | 9,009 |  |  | $ | 8,156 |
Issuance of preferred units and preferred shares, net of repurchases | 195 |  |  | 72 |
Issuances of limited partnership units and redeemable partnership units, net of repurchases | 9 |  |  | 781 |
Ending balance | $ | 9,213 |  |  | $ | 9,009 |
Weighted Average Invested Capital | $ | 9,067 |  |  | $ | 8,563 |

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