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Goodwill and Intangible Assets - Goodwill Acquired by Segment (Details) - Goodwill - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Balance, Beginning | $ 5,412 | $ 5,183
Acquisitions | 537 | 41
Foreign exchange rate movements | (117) | 188
Balance, Ending | 5,832 | 5,412
Canada |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Balance, Beginning | 2,607 | 2,573
Acquisitions | 0 | 34
Foreign exchange rate movements | 0 | 0
Balance, Ending | 2,607 | 2,607
SLF U.S. |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Balance, Beginning | 1,138 | 1,043
Acquisitions | 0 | 7
Foreign exchange rate movements | (55) | 88
Balance, Ending | 1,083 | 1,138
SLF Asia |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Balance, Beginning | 705 | 655
Acquisitions | 0 | 0
Foreign exchange rate movements | (29) | 50
Balance, Ending | 676 | 705
Asset Management |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Balance, Beginning | 775 | 729
Acquisitions | 537 | 0
Foreign exchange rate movements | (31) | 46
Balance, Ending | 1,281 | 775
Corporate |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Balance, Beginning | 187 | 183
Acquisitions | 0 | 0
Foreign exchange rate movements | (2) | 4
Balance, Ending | $ 185 | $ 187

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- Definition The increase in intangible assets and goodwill resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2019-01-01 -Paragraph 118 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&anchor=para_118_e_i&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The increase (decrease) in intangible assets and goodwill 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: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2019-01-01 -Paragraph 118 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2019-en-r&anchor=para_118_e_vii&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of intangible assets and goodwill held by the entity. [Refer: Goodwill; Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 + Details
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