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Income Taxes - Movement in Net Deferred Tax Assets (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | $ 1,526 | $ 1,251
Acquisitions (disposals) through business combinations | (226) |
Charged to statement of operations | 93 | 196
Charged to other comprehensive income | 237 | 85
Charged to equity, other than other comprehensive income | 15 |
Foreign exchange rate movements and Other | 7 | (6)
Ending balance, deferred tax assets | 1,652 | 1,526
Investments |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | (1,178) | (1,240)
Acquisitions (disposals) through business combinations | 1 |
Charged to statement of operations | 492 | 53
Charged to other comprehensive income | 135 | 25
Charged to equity, other than other comprehensive income | 0 |
Foreign exchange rate movements and Other | 13 | (16)
Ending balance, deferred tax assets | (537) | (1,178)
Policy liabilities |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | 1,727 | 1,621
Acquisitions (disposals) through business combinations | 10 |
Charged to statement of operations | (380) | 48
Charged to other comprehensive income | 85 | 30
Charged to equity, other than other comprehensive income | 0 |
Foreign exchange rate movements and Other | (19) | 28
Ending balance, deferred tax assets | 1,423 | 1,727
Deferred acquisition costs |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | 74 | 82
Acquisitions (disposals) through business combinations | 0 |
Charged to statement of operations | 4 | (9)
Charged to other comprehensive income | 0 | 0
Charged to equity, other than other comprehensive income | 0 |
Foreign exchange rate movements and Other | 6 | 1
Ending balance, deferred tax assets | 84 | 74
Losses available for carry forward |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | 853 | 708
Acquisitions (disposals) through business combinations | 32 |
Charged to statement of operations | (10) | 125
Charged to other comprehensive income | 92 | 17
Charged to equity, other than other comprehensive income | 15 |
Foreign exchange rate movements and Other | 4 | 3
Ending balance, deferred tax assets | 986 | 853
Pension and other employee benefits |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | 301 | 322
Acquisitions (disposals) through business combinations | 8 |
Charged to statement of operations | (6) | (14)
Charged to other comprehensive income | (75) | 9
Charged to equity, other than other comprehensive income | 0 |
Foreign exchange rate movements and Other | 14 | (16)
Ending balance, deferred tax assets | 242 | 301
Other |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | (251) | (242)
Acquisitions (disposals) through business combinations | (277) |
Charged to statement of operations | (7) | (7)
Charged to other comprehensive income | 0 | 4
Charged to equity, other than other comprehensive income | 0 |
Foreign exchange rate movements and Other | (11) | (6)
Ending balance, deferred tax assets | $ (546) | $ (251)

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- Definition The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph g -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_g_ii&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of deferred tax liabilities or assets. [Refer: Deferred tax liabilities; Deferred tax assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph g -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The increase (decrease) in deferred tax liability (asset) resulting from business combinations. [Refer: Deferred tax liability (asset)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The increase (decrease) in deferred tax liability (asset) resulting from the net exchange differences arising when the financial statements are translated from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Deferred tax liability (asset)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Income Tax Relating To Components Of Equity Other Than Other Comprehensive Income, Related To Deferred Tax Assets, Net + References No definition available. + Details
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