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Discontinued operations - Income Statement (Details) - CAD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Operating revenues |  | $ 23,449 | $ 22,883
Operating costs |  | (13,556) | (13,276)
Depreciation |  | (3,627) | (3,475)
Amortization |  | (982) | (929)
Other income (expense) |  | 160 | (194)
Gain on sale (net of taxes of $3 million) | $ 211 |  |
Net earnings attributable to common shareholders |  | $ 0 | 226
Tax expense (income) relating to gain (loss) on discontinuance |  |  | (3)
Discontinued operations |  |  |
Disclosure of analysis of single amount of discontinued operations [line items] |  |  |
Operating revenues |  |  | 118
Operating costs |  |  | (57)
Depreciation |  |  | (18)
Amortization |  |  | (7)
Interest expense |  |  | (6)
Other income (expense) |  |  | (8)
Income taxes |  |  | (7)
Net earnings attributable to common shareholders before gain on sale |  |  | 15
Gain on sale (net of taxes of $3 million) |  |  | 211
Net earnings attributable to common shareholders |  |  | $ 226

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- Definition The amount of amortisation expense. Amortisation is the systematic allocation of depreciable amounts of intangible assets over their useful lives. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of depreciation expense. Depreciation is the systematic allocation of depreciable amounts of tangible assets over their useful lives. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The gain (loss) recognised on the measurement to fair value less costs to sell or on the disposal of the assets or disposal group(s) constituting the discontinued operation. [Refer: Discontinued operations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2021-01-01 -Paragraph 33 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2021-en-r&anchor=para_33_b_iii&doctype=Standard -URIDate 2021-03-24 + Details
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