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share-based compensation - Expense (Details) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
share-based compensation |  |
Employee benefits expense | $ 141 | $ 121
Associated operating cash outflows | (135) | (104)
Statement of cash flows adjustment | 6 | 17
Income tax benefit arising from share-based compensation | 37 | 32
Restricted stock units |  |
share-based compensation |  |
Employee benefits expense | 99 | 83
Associated operating cash outflows | (98) | (67)
Statement of cash flows adjustment | 1 | 16
Cash inflows from cash-settled equity forward agreements | 9 | 14
Employee share purchase plan |  |
share-based compensation |  |
Employee benefits expense | 37 | 37
Associated operating cash outflows | (37) | (37)
Share option awards |  |
share-based compensation |  |
Employee benefits expense | 5 | 1
Statement of cash flows adjustment | $ 5 | $ 1

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- Definition Adjustments for share-based payments to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2018-01-01 -Paragraph 20 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2018-03-01&anchor=para_20_b&doctype=Standard -URIDate 2018-03-16 + 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 amount of expense arising from equity-settled share-based payment transactions in which the goods or services received did not qualify for recognition as assets. [Refer: Expense from share-based payment transactions in which goods or services received did not qualify for recognition as assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2018-01-01 -Paragraph 51 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2018-03-01&anchor=para_51_a&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The cash inflow from cash-settled equity forward agreements. + References No definition available. + Details
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- Definition The amount of cash outflows associated with expense from share-based payment transactions. + References No definition available. + Details
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- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. + References No definition available. + Details
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- Details
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- Details
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- Details
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