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Post-employee benefit plans - Funded Status of Post-Employment Benefit Plans Cost (Details) - Plan deficit - CAD ($) $ in Millions | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Disclosure of defined benefit plans [line items] |  |
Present value of post-employment benefit obligations | $ (28,062) | $ (27,179)
Fair value of plan assets | 26,867 | 25,850
Plan surplus (deficit) | (1,195) | (1,329)
FUNDED |  |
Disclosure of defined benefit plans [line items] |  |
Present value of post-employment benefit obligations | (25,790) | (24,961)
Fair value of plan assets | 26,493 | 25,474
Plan surplus (deficit) | 703 | 513
PARTIALLY FUNDED |  |
Disclosure of defined benefit plans [line items] |  |
Present value of post-employment benefit obligations | (1,964) | (1,918)
Fair value of plan assets | 374 | 376
Plan surplus (deficit) | (1,590) | (1,542)
UNFUNDED |  |
Disclosure of defined benefit plans [line items] |  |
Present value of post-employment benefit obligations | (308) | (300)
Fair value of plan assets | 0 | 0
Plan surplus (deficit) | $ (308) | $ (300)

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- Definition The present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods. [Refer: Plan assets, at fair value] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 57 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_57_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 57 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_57_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The fair value of any plan assets, less the present value of the defined benefit obligation. [Refer: Plan assets [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 57 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_57_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Details
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- Details
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- Details
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- Details
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