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Consolidated Statements of Comprehensive Income - CAD CAD in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Statement of comprehensive income [abstract] |  |
Net income for the year | CAD 1,711 | CAD 835
Items that will not be reclassified to income: |  |
Defined benefit pension plans: Remeasurements | (62) | (101)
Defined benefit pension plans: Related income tax recovery | 17 | 27
Items that will not be reclassified to net income | (45) | (74)
Available-for-sale investments: |  |
Increase in fair value | 433 | 90
Reclassification to net income for gain on sale of investment | 0 | (39)
Related income tax expense | (62) | (7)
Available-for-sale investments | 371 | 44
Cash flow hedging derivative instruments: |  |
Unrealized loss in fair value of derivative instruments | (566) | (336)
Reclassification to net income of loss on debt derivatives | 591 | 255
Reclassification to net income or property, plant and equipment of loss (gain) on expenditure derivatives | 39 | (80)
Reclassification to net income for accrued interest | (60) | (69)
Related income tax recovery | 40 | 66
Cash flow hedging derivative instruments | 44 | (164)
Equity-accounted investments: |  |
Share of other comprehensive loss of equity-accounted investments, net of tax | (15) | (8)
Reclassification to net income of realized other comprehensive income for equity-accounted investments | 0 | (15)
Equity-accounted investments | (15) | (23)
Items that may subsequently be reclassified to net income | 400 | (143)
Other comprehensive income (loss) for the year | 355 | (217)
Comprehensive income for the year | CAD 2,066 | CAD 618

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- Definition The amount of income tax relating to amounts recognised in other comprehensive income in relation to available-for-sale financial assets. [Refer: Financial assets available-for-sale; Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2018-01-01 -Name IAS -Number 12 -IssueDate 2017-01-01 -Paragraph 81 -Subparagraph ab -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-02&anchor=para_81_ab&doctype=Standard&book=B -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2018-01-01 -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 90 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-02&anchor=para_90&doctype=Standard&book=B -URIDate 2017-03-09 + Details
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- Definition The amount of income tax relating to amounts recognised in other comprehensive income in relation to remeasurements of defined benefit plans. [Refer: Other comprehensive income; Reserve of remeasurements of defined benefit plans; Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2017-01-01 -Paragraph 81 -Subparagraph ab -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2017-03-01&anchor=para_81_ab&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 90 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_90&doctype=Standard -URIDate 2017-03-09 + Details
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