Pensions and other postretirement benefits (Details 9) (CAD) In Millions, unless otherwise specified	Dec. 31, 2013
Pensions [Member]
Defined Benefit Plan Estimated Future Benefit Payments [Line Items]
2014	991
2015	1,011
2016	1,033
2017	1,048
2018	1,058
Years 2019 to 2023	5,367
Other postretirement benefits [Member]
Defined Benefit Plan Estimated Future Benefit Payments [Line Items]
2014	18
2015	19
2016	19
2017	19
2018	19
Years 2019 to 2023	95

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Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

+ Details

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- Definition

Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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- Definition

Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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- Definition

Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan.

+ References

+ Details

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- Definition

Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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- Definition

Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan.

+ References

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