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GOODWILL (Tables) | 12 Months Ended
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Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of goodwill |
| Liquids Pipelines | Gas Transmission and Midstream | Gas Distribution and Storage |  | Energy Services |  | Consolidated
(millions of Canadian dollars) |  |  |  |  |  |  |
Balance at January 1, 2020 | 7,951 |  | 19,844 |  | 5,356 |  |  | 2 |  |  | 33,153 |
Foreign exchange and other | (123) |  | (364) |  | — |  |  | — |  |  | (487) |
Acquisition | — |  | — |  | 22 |  |  | — |  |  | 22 |
Balance at December 31, 2020 1,2 | 7,828 |  | 19,480 |  | 5,378 |  |  | 2 |  |  | 32,688 |
Foreign exchange and other | (55) |  | (145) |  | — |  |  | — |  |  | (200) |
Acquisition 3 | 268 |  | — |  | 19 |  |  | — |  |  | 287 |
Balance at December 31, 2021 1,2 | 8,041 |  | 19,335 |  | 5,397 |  |  | 2 |  |  | 32,775 |
1 Gross cost of goodwill as at December 31, 2021 and 2020 was $34.4 billion and $34.3 billion, respectively. 2 Accumulated impairment as at December 31, 2021 and 2020 was $1.6 billion. 3 In 2021, we recorded $268 million of goodwill related to the acquisition of Moda. See Note 8 - Acquisitions and Dispositions for further discussion.

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