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SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2020
Corporate Information And Statement Of IFRS Compliance [Abstract] |
Disclosure of estimated useful lives of property, plant and equipment | Property, plant and equipment are depreciated on a straight-line or declining-balance basis over the estimated useful lives of each component of the assets as follows:
Buildings | Up to 75 years
Transmission stations, towers and related fixtures | Up to 40 years
Leasehold improvements | Up to 50 years
Plant and equipment | Up to 40 years
Network systems | Up to 65 years
Track | Up to 40 years
District energy systems | Up to 50 years
Pipelines | Up to 20 years
Gas storage assets | Up to 50 years

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