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Financial Instruments and Risk Management - Fair Value Hierarchy (Details) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021
Financial Instruments and Risk Management |  |
Balance, at fair value | $ (65) | $ (98)
Transfers of financial liabilities from level 1 to 2 | 0 |
Transfers of financial liabilities from level 2 to 1 | 0 |
Accounts receivables |  |
Financial Instruments and Risk Management |  |
Financial assets, at fair value | 143 | 123
Accounts payable |  |
Financial Instruments and Risk Management |  |
Financial liabilities, at fair value | (208) | (221)
Level 1 |  |
Financial Instruments and Risk Management |  |
Balance, at fair value | (49) | (99)
Level 1 | Accounts receivables |  |
Financial Instruments and Risk Management |  |
Financial assets, at fair value | 36 | 35
Level 1 | Accounts payable |  |
Financial Instruments and Risk Management |  |
Financial liabilities, at fair value | (85) | (134)
Level 2 |  |
Financial Instruments and Risk Management |  |
Balance, at fair value | (16) | 1
Level 2 | Accounts receivables |  |
Financial Instruments and Risk Management |  |
Financial assets, at fair value | 107 | 88
Level 2 | Accounts payable |  |
Financial Instruments and Risk Management |  |
Financial liabilities, at fair value | $ (123) | $ (87)

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- Definition The amount of transfers out of Level 1 and into Level 2 of the fair value hierarchy of liabilities held at the end of the reporting period. [Refer: Level 1 of fair value hierarchy [member]; Level 2 of fair value hierarchy [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2022-03-24 -Paragraph 93 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2022-en-r&anchor=para_93_c&doctype=Standard -URIDate 2022-03-24 + Details
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