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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) | 12 Months Ended
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Dec. 31, 2020
Disclosure of analysis of other comprehensive income by item [abstract] |
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) | ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Attributable to Brookfield Infrastructure Partners L.P.
US$ MILLIONS |  | Revaluation Surplus |  | Foreign Currency Translation |  | Cash Flow Hedges |  | Accumulated Other Comprehensive Income
Balance at December 31, 2018 |  | $ | 729 |  |  | $ | (449) |  |  | $ | (2) |  |  | $ | 278 |
Other comprehensive income |  | 230 |  |  | 12 |  |  | 3 |  |  | 245 |
Balance at December 31, 2019 |  | $ | 959 |  |  | $ | (437) |  |  | $ | 1 |  |  | $ | 523 |
Other comprehensive income |  | 118 |  |  | (105) |  |  | 3 |  |  | 16 |
Balance at December 31, 2020 |  | $ | 1,077 |  |  | $ | (542) |  |  | $ | 4 |  |  | $ | 539 |

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