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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) CAD in Millions | 12 Months Ended
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Dec. 31, 2015 CAD item
RETIREMENT AND POSTRETIREMENT BENEFITS |
Percentage by which if, amortization of cumulative unrecognized net actuarial gains and losses exceeds the greater of the accrued benefit obligation or the fair value of plan assets, then the incremental amortization of cumulative unrecognized net actuarial gains and losses would be included in pension cost | 10.00%
REGULATION |
Regulatory assets | CAD | CAD 0
PROPERTY, PLANT AND EQUIPMENT |
Number of primary methods of depreciation which are utilized | item | 2
Performance stock units |
STOCK-BASED COMPENSATION |
Vesting period | 3 years
Restricted stock units |
STOCK-BASED COMPENSATION |
Vesting period | 35 months

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- Definition Represents the percentage by which if, amortization of cumulative unrecognized net actuarial gains and losses exceeds the greater of the accrued benefit obligation or the fair value of plan assets, then the incremental amortization of cumulative unrecognized net actuarial gains and losses would be included in pension cost. + References No definition available. + Details
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- Definition Represents the number of primary methods of depreciation which are utilized. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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