XML 122 R108.htm IDEA: XBRL DOCUMENT v3.4.0.3
RETIREMENT AND POSTRETIREMENT BENEFITS - NET BENEFIT COSTS RECOGNIZED (Details) - CAD
CAD in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Weighted average assumptions made in the measurement of the cost of the pension plans and OPEB    
Offsetting regulatory liabilities CAD 0 CAD 3
Other Postretirement Plans    
Net Benefit Costs Recognized    
Benefits earned during the period 8 8
Interest cost on projected benefit obligations 11 12
Expected return on plan assets (6) (5)
Amortization of actuarial loss 1  
Net benefit costs on an accrual basis 14 15
Pension and Other Postretirement Benefit Expense, Total 14 15
Amount included in AOCI    
Net actuarial (gains)/loss 16 15
Net prior service costs/(credit) (6)  
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, Total 10 15
Total amount recognized in Comprehensive income 24 30
Amount included in AOCI    
Unamortized actuarial losses included in AOCI (44) (26)
Unamortized prior services costs (credits) included in AOCI (1) CAD 6
Amount reclassified into earnings in the next twelve months    
Actuarial Loss CAD 1  
Weighted average assumptions made in the measurement of the cost of the pension plans and OPEB    
Discount rate (as a percent) 3.90% 4.90%
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Actual Long Term Return On Assets 6.00% 6.00%
Pension Plans    
Net Benefit Costs Recognized    
Benefits earned during the period CAD 167 CAD 108
Interest cost on projected benefit obligations 98 93
Expected return on plan assets (142) (123)
Amortization of actuarial loss 49 28
Net benefit costs on an accrual basis 172 106
Defined contribution benefit costs 4 4
Pension and Other Postretirement Benefit Expense, Total 176 110
Amount included in AOCI    
Net actuarial (gains)/loss (107) 232
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, Total (107) 232
Total amount recognized in Comprehensive income 69 342
Amount included in AOCI    
Unamortized actuarial losses included in AOCI (404) CAD (489)
Amount reclassified into earnings in the next twelve months    
Actuarial Loss CAD 35  
Weighted average assumptions made in the measurement of the cost of the pension plans and OPEB    
Discount rate (as a percent) 4.00% 5.00%
Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Actual Long Term Return On Assets 6.70% 6.70%
Average rate of salary increases (as a percent) 4.00% 3.70%