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Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2020
Cash Flow Statement [Abstract] |
Summary of Cash Flow Information |
(CAD$ in millions) |  | December 31, 2020 |  | December 31, 2019
Cash and cash equivalents |  |  |  |
Cash |  | $ | 137 |  |  | $ | 149 |
Investments with maturities from the date of acquisition of three months or less |  | 313 |  |  | 877 |
|  | $ | 450 |  |  | $ | 1,026 |
Summary of Non-Cash Working Capital Items |
(CAD$ in millions) |  | 2020 |  | 2019
Net change in non-cash working capital items |  |  |  |
Trade and settlement receivables |  | $ | (294) |  |  | $ | 97 |
Prepaids and other current assets |  | (102) |  |  | (69) |
Inventories |  | 100 |  |  | 16 |
Trade accounts payable and other liabilities |  | 55 |  |  | (204) |
|  | $ | (241) |  |  | $ | (160) |

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- Definition Cash Flow Statement [Abstract] + References No definition available. + Details
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