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Inventory (Details) - CAD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
12. Inventory |  |
Fuel | $ 232 | $ 213
Raw Materials | 235 | 241
Emission Credits | 0 | 20
Inventory, Net, Total | $ 467 | $ 474

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