v3.3.1.900

Defined benefit plan - assumptions, future benefits (Details) - CAD CAD in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Weighted-Average Assumptions used to calculate benefit obligations
Discount rate (as a percent)	4.30%	4.00%
Rate of compensation increase (as a percent)	3.00%	4.00%
Weighted-Average Assumptions used to calculate benefit expense
Discount rate (as a percent)	4.00%	5.00%
Rate of return on plan assets (as a percent)	6.00%	6.00%
Rate of compensation increase (as a percent)	4.00%
Period over which corporate AA rated yield curve extrapolated to derive CIA/Natcan curve	10 years
Maturity period of corporate bonds rated AA	10 years
Percentage of plan assets	100.00%	100.00%
Expected future benefit payments
2016	CAD 0.2
2017	0.3
2018	0.4
2019	0.5
2020	0.6
2021-2024	CAD 4.5
Maximum
Weighted-Average Assumptions used to calculate benefit expense
Rate of compensation increase (as a percent)		4.00%
Canadian equity
Weighted-Average Assumptions used to calculate benefit expense
Percentage of plan assets	29.00%	30.00%
U.S. equity
Weighted-Average Assumptions used to calculate benefit expense
Percentage of plan assets	14.00%	14.00%
International equity
Weighted-Average Assumptions used to calculate benefit expense
Percentage of plan assets	14.00%	13.00%
Canadian fixed income
Weighted-Average Assumptions used to calculate benefit expense
Percentage of plan assets	40.00%	40.00%
International fixed income
Weighted-Average Assumptions used to calculate benefit expense
Percentage of plan assets	3.00%	3.00%

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Represents the maturity period of corporate bonds rated AA.

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Represents the period over which corporate AA rated yield curve extrapolated to derive CIA/Natcan curve.

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The interest rate used to adjust for the time value of money for the plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
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Expected rate of compensation increases (for pay-related plans).

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The interest rate used to adjust for the time value of money.

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- Definition

An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Expected Long-Term Rate of Return on Plan Assets
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Expected rate of compensation increases (for pay-related plans).

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Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of benefits from a defined benefit plan expected to be paid in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

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