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GOODWILL (Tables) | 12 Months Ended
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Dec. 31, 2021
Intangible Assets [Abstract] |
Disclosure of reconciliation of changes in intangible assets and goodwill | The following table presents the carrying amount for our company’s goodwill:
|  | As of
US$ MILLIONS |  | Dec. 31, 2021 |  | Dec. 31, 2020
Balance at beginning of the year |  | $ | 528 |  |  | $ | 667 |
Foreign currency translation and other |  | (39) |  |  | (139) |
Balance at end of the year |  | $ | 489 |  |  | $ | 528 |
Disclosure of detailed information about intangible assets | Intangible assets are allocated to the following cash generating units:
|  | As of
US$ MILLIONS |  | Dec. 31, 2021 |  | Dec. 31, 2020
Brazilian regulated gas transmission operation |  | $ | 2,645 |  |  | $ | 2,903 |
U.K. regulated distribution operation |  | 42 |  |  | 45 |
Total |  | $ | 2,687 |  |  | $ | 2,948 |
Goodwill is allocated to the following cash generating units or group of cash generating units:
|  | As of
US$ MILLIONS |  | Dec. 31, 2021 |  | Dec. 31, 2020
U.K. regulated distribution operation |  | $ | 33 |  |  | $ | 38 |
Brazilian regulated gas transmission operation |  | 456 |  |  | 490 |
Total |  | $ | 489 |  |  | $ | 528 |

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