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INVENTORY (Tables) | 12 Months Ended
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Dec. 31, 2020
Inventories [Abstract] |
Disclosure of inventories |
US$ MILLIONS |  | 2020 |  | 2019
Natural gas inventory |  | $ | 71 |  |  | $ | 127 |
Raw materials and other |  | 150 |  |  | 115 |
Carrying amount of inventories |  | $ | 221 |  |  | $ | 242 |

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