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Cash Flow Information - Disclosure of Non-cash Operating Working Capital (Details) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of cash flow statement [Abstract] |  |  |
Accounts receivable | $ (869) | $ (28) | $ (79)
Prepaid expenses | 0 | 9 | 2
Income taxes receivable | (61) | 0 | (4)
Inventory | 6 | 42 | 6
Accounts payable, accrued liabilities and provisions | 548 | 153 | 160
Income taxes payable | 60 | (2) | 4
Change in non-cash operating working capital | $ (316) | $ 174 | $ 89

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- Definition Adjustments for decrease (increase) in trade accounts receivable to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 20 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_20_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The increase (decrease) in working capital. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 20 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_20&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Adjustments for decrease (increase) in inventory + References No definition available. + Details
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- Definition Adjustments for income tax payable + References No definition available. + Details
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- Definition Adjustments for income tax receivable + References No definition available. + Details
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- Definition Adjustments for Increase Decrease in Accounts Payable and Other Current Liabilities + References No definition available. + Details
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- Definition Disclosure of cash flow statement [Abstract] + References No definition available. + Details
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