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Inventories (Tables) | 12 Months Ended
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Dec. 31, 2017
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Summary of Inventories |
(CAD$ in millions) |  | December 31, 2017 |  |  | December 31, 2016 |
Supplies |  | $ | 563 |  |  | $ | 586 |
Raw materials |  |  | 223 |  |  |  | 204 |
Work in-process |  |  | 529 |  |  |  | 521 |
Finished products |  |  | 430 |  |  |  | 449 |
|  |  | 1,745 |  |  |  | 1,760 |
Less long-term portion (Note 13) |  |  | (108 | ) |  |  | (87 | )
|  | $ | 1,637 |  |  | $ | 1,673 |

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