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Supplemental Cash Flow Information - Summary of Cash Flow Information (Detail) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Cash and cash equivalents |  |  |
Cash | $ 137 | $ 149 |
Investments with maturities from the date of acquisition of three months or less | 313 | 877 |
Cash and cash equivalents | 450 | 1,026 | $ 1,734
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) |
Net change in non-cash working capital items | (241) | (160) |
Cash and cash equivalents | 450 | $ 1,026 | $ 1,734
Antamina |  |  |
Cash and cash equivalents |  |  |
Cash and cash equivalents | 26 |  |
Net change in non-cash working capital items |  |  |
Cash and cash equivalents | 26 |  |
Quebrada Blanca |  |  |
Cash and cash equivalents |  |  |
Cash and cash equivalents | 82 |  |
Net change in non-cash working capital items |  |  |
Cash and cash equivalents | $ 82 |  |

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- Definition Adjustments for increase (decrease) in trade and other payables to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Trade and other payables; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_20&doctype=Standard -URIDate 2020-01-01 + Details
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