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Inventory Components of Inventory (Details) - CAD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Disclosure of inventories [Abstract]
Parts, materials and supplies	$ 83	$ 82
Coal	43	27
Emission credits	27	55
Natural gas	4	3
Total	$ 157	$ 167

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- Definition

A classification of current inventory representing the amount of fuel. [Refer: Inventories]

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A classification of current inventory representing the amount of a naturally occurring hydrocarbon gas mixture. [Refer: Inventories]

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