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Supplemental Cash Flow Information | 12 Months Ended
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Dec. 31, 2017
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Supplemental Cash Flow Information |
10. | Supplemental Cash Flow Information
(CAD$ in millions) |  | December 31, 2017 |  |  | December 31, 2016 |
Cash and cash equivalents |  |  |  |  |  |  |  |
Cash |  | $ | 230 |  |  | $ | 254 |
Investments with maturities from the date of acquisition of three months or less |  |  | 722 |  |  |  | 1,153 |
|  | $ | 952 |  |  | $ | 1,407 |
(CAD$ in millions) |  | 2017 |  |  | 2016 |
Net change in non-cash working capital items |  |  |  |  |  |  |  |
Trade accounts receivable |  | $ | (250 | ) |  | $ | (480 | )
Inventories |  |  | (1 | ) |  |  | (86 | )
Trade accounts payable and other liabilities |  |  | 345 |  |  |  | 206 |
|  | $ | 94 |  |  | $ | (360 | )

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- Definition Text block1 [abstract] + References No definition available. + Details
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