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v3.20.4

provisions (Details) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2020
provisions reconciliation |  |  |
Balance at beginning of period | $ 878 | $ 800 |
Additions | 397 | 184 |
Reversals | (140) | (23) |
Uses | (327) | (224) |
Interest effects | 176 | 160 |
Effects of foreign exchange, net | 13 | (19) |
Balance at end of period | 997 | 878 |
Current |  |  | $ 73
Non-current |  |  | 924
Total | 997 | 878 | 997
Differences of interest effect due to change in discount rates as compared to interest accretion on provisions | 160 | 138 |
Asset retirement obligation |  |  |
provisions reconciliation |  |  |
Balance at beginning of period | 495 | 336 |
Additions |  | 15 |
Reversals | (5) |  |
Uses | (3) | (5) |
Interest effects | 174 | 149 |
Balance at end of period | 661 | 495 |
Current |  |  | 8
Non-current |  |  | 653
Total | 661 | 495 | 661
Employee-related |  |  |
provisions reconciliation |  |  |
Balance at beginning of period | 64 | 88 |
Additions | 48 | 64 |
Reversals | (1) |  |
Uses | (69) | (88) |
Balance at end of period | 42 | 64 |
Current |  |  | 36
Non-current |  |  | 6
Total | 42 | 64 | 42
Written put options and contingent consideration |  |  |
provisions reconciliation |  |  |
Balance at beginning of period | 227 | 282 |
Additions | 149 | 32 |
Reversals | (114) | (17) |
Uses | (112) | (62) |
Interest effects | 2 | 11 |
Effects of foreign exchange, net | 13 | (19) |
Balance at end of period | 165 | 227 |
Non-current |  |  | 165
Total | 165 | 227 | 165
Other |  |  |
provisions reconciliation |  |  |
Balance at beginning of period | 92 | 94 |
Additions | 200 | 73 |
Reversals | (20) | (6) |
Uses | (143) | (69) |
Balance at end of period | 129 | 92 |
Current |  |  | 29
Non-current |  |  | 100
Total | $ 129 | $ 92 | $ 129

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- Definition The increase (decrease) in other provisions resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2020-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_84&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount recognised for new other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2020-01-01 -Paragraph 84 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_84_b&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of provisions other than provisions for employee benefits. [Refer: Provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2020-01-01 -Paragraph 84 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_84_a&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_78_d&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount used (ie incurred and charged against the provision) for other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2020-01-01 -Paragraph 84 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_84_c&doctype=Standard -URIDate 2020-01-01 + Details
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- References No definition available. + Details
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- Definition The amount reversed for unused other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2020-01-01 -Paragraph 84 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_84_d&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The increase (decrease) in other provisions resulting from interest effect. + References No definition available. + Details
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- Definition The difference between the interest effect on other provisions and the interest accretion on provisions included in financing costs due to the change in the discount rates applicable to the provision. + References No definition available. + Details
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- Definition The amount of current provisions other than provisions for employee benefits. + References No definition available. + Details
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- Definition The amount of non-current provisions other than provisions for employee benefits. + References No definition available. + Details
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