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Goodwill and Intangible Assets - Goodwill Acquired by Segment (Details) - Goodwill - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | $ 6,517 | $ 6,072
Acquisitions | 2,030 | 479
Impairment | (170) |
Foreign exchange rate movements | 328 | (34)
Ending balance | 8,705 | 6,517
Disposal groups classified as held for sale | Sun Life UK |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Impairment | (170) |
Canada |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 2,607 | 2,607
Acquisitions | 0 | 0
Impairment | 0 |
Foreign exchange rate movements | 0 | 0
Ending balance | 2,607 | 2,607
U.S. (Employee Benefits) |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 1,108 | 1,062
Acquisitions | 2,030 | 53
Impairment | 0 |
Foreign exchange rate movements | 226 | (7)
Ending balance | 3,364 | 1,108
Asia |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 659 | 665
Acquisitions | 0 | 3
Impairment | 0 |
Foreign exchange rate movements | 41 | (9)
Ending balance | 700 | 659
Asset Management |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 1,959 | 1,551
Acquisitions | 0 | 423
Impairment | 0 |
Foreign exchange rate movements | 75 | (15)
Ending balance | 2,034 | 1,959
Corporate |  |
Reconciliation of changes in intangible assets and goodwill [abstract] |  |
Beginning balance | 184 | 187
Acquisitions | 0 | 0
Impairment | (170) |
Foreign exchange rate movements | (14) | (3)
Ending balance | $ 0 | $ 184

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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 2022-03-24 -Paragraph 118 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_118_e_i&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of impairment loss recognised in profit or loss for intangible assets and goodwill. [Refer: Impairment loss recognised in profit or loss; Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2022-03-24 -Paragraph 118 -Subparagraph e -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_118_e_iv&doctype=Standard -URIDate 2022-03-24 + 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 2022-03-24 -Paragraph 118 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_118_e_vii&doctype=Standard -URIDate 2022-03-24 + 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 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 + Details
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