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Income Taxes - Movement in Net Deferred Tax Assets (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | $ 887 | $ 892
Acquisitions (disposals) | (48) |
Charged to statement of operations | 254 | (37)
Charged to other comprehensive income | (51) | 24
Charged to equity, other than other comprehensive income | 9 | 9
Foreign exchange rate movements and Other | (2) | (1)
Ending balance, deferred tax assets | 1,049 | 887
Investments |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | (746) | (957)
Acquisitions (disposals) | 0 |
Charged to statement of operations | (263) | 195
Charged to other comprehensive income | (52) | 45
Charged to equity, other than other comprehensive income | 0 | 0
Foreign exchange rate movements and Other | 21 | (29)
Ending balance, deferred tax assets | (1,040) | (746)
Policy liabilities |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | 737 | 896
Acquisitions (disposals) | 0 |
Charged to statement of operations | 406 | (170)
Charged to other comprehensive income | (9) | 0
Charged to equity, other than other comprehensive income | 0 | 0
Foreign exchange rate movements and Other | (13) | 11
Ending balance, deferred tax assets | 1,121 | 737
Deferred acquisition costs |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | 96 | 77
Acquisitions (disposals) | 0 |
Charged to statement of operations | (9) | 6
Charged to other comprehensive income | 0 | 0
Charged to equity, other than other comprehensive income | 0 | 6
Foreign exchange rate movements and Other | (4) | 7
Ending balance, deferred tax assets | 83 | 96
Losses available for carry forward |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | 648 | 549
Acquisitions (disposals) | 0 |
Charged to statement of operations | 63 | 107
Charged to other comprehensive income | (10) | (13)
Charged to equity, other than other comprehensive income | 0 | 0
Foreign exchange rate movements and Other | (4) | 5
Ending balance, deferred tax assets | 697 | 648
Pension and other employee benefits |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | 319 | 351
Acquisitions (disposals) | 0 |
Charged to statement of operations | 7 | (26)
Charged to other comprehensive income | 21 | (17)
Charged to equity, other than other comprehensive income | 0 | 0
Foreign exchange rate movements and Other | (9) | 11
Ending balance, deferred tax assets | 338 | 319
Other |  |
Reconciliation of changes in deferred tax assets [abstract] |  |
Beginning balance, deferred tax assets | (167) | (24)
Acquisitions (disposals) | (48) |
Charged to statement of operations | 50 | (149)
Charged to other comprehensive income | (1) | 9
Charged to equity, other than other comprehensive income | 9 | 3
Foreign exchange rate movements and Other | 7 | (6)
Ending balance, deferred tax assets | $ (150) | $ (167)

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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 2019-01-01 -Paragraph 81 -Subparagraph g -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_g_ii&doctype=Standard -URIDate 2019-03-27 + 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 2019-01-01 -Paragraph 81 -Subparagraph g -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_g_i&doctype=Standard -URIDate 2019-03-27 + 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 2019-01-01 -Paragraph 81 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81&doctype=Standard -URIDate 2019-03-27 + 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 2019-01-01 -Paragraph 81 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81&doctype=Standard -URIDate 2019-03-27 + 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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