XML 121 R107.htm IDEA: XBRL DOCUMENT v3.4.0.3
RETIREMENT AND POSTRETIREMENT BENEFITS - BENEFIT OBLIGATIONS AND FUNDED STATUS (Details)
CAD in Millions
 12 Months Ended
Dec. 31, 2015
CAD
item
Dec. 31, 2014
CAD
Pension and Other Postretirement Benefit Disclosures    
Number of registered pension plans | item 3  
Number of supplemental pension plans | item 4  
Increase to pension liabilities due to revised of mortality assumptions   CAD 21
Change in accrued benefit obligation    
Offsetting regulatory liabilities CAD 0 3
Presented as follows:    
Other long-term liabilities (517) (584)
Pension Plans    
Change in accrued benefit obligation    
Benefit obligation at beginning of year 2,470 1,903
Actuarial (gains)/loss (172) 411
Benefits paid (90) (75)
Effect of foreign exchange rate changes 79 31
Other (1) (1)
Benefit obligation at end of year 2,551 2,470
Change in plan assets    
Fair value of plan assets at beginning of year 2,062 1,799
Actual return on plan assets 88 179
Employer's contributions 116 138
Benefits paid (90) (75)
Effect of foreign exchange rate changes 54 22
Other (1) (1)
Fair value of plan assets at end of year 2,229 2,062
Underfunded status at end of year (322) (408)
Presented as follows:    
Deferred amounts and other assets 6 5
Other long-term liabilities (328) (413)
Amount recognized in balance sheet CAD (322) CAD (408)
Weighted average assumptions made in the measurement of the projected benefit obligations    
Discount rate (as a percent) 4.20% 4.00%
Average rate of salary increases (as a percent) 3.60% 4.00%
Other Postretirement Plans    
Change in accrued benefit obligation    
Benefit obligation at beginning of year CAD 276 CAD 240
Employees' contributions 1 1
Actuarial (gains)/loss 9 16
Benefits paid (12) (9)
Effect of foreign exchange rate changes 21 8
Other (6)  
Benefit obligation at end of year 308 276
Change in plan assets    
Fair value of plan assets at beginning of year 99 81
Actual return on plan assets (2) 7
Employer's contributions 10 11
Employees' contributions 1 1
Benefits paid (12) (9)
Effect of foreign exchange rate changes 19 8
Fair value of plan assets at end of year 115 99
Underfunded status at end of year (193) (177)
Presented as follows:    
Deferred amounts and other assets 2  
Accounts payable and other (6) (6)
Other long-term liabilities (189) (171)
Amount recognized in balance sheet CAD (193) CAD (177)
Weighted average assumptions made in the measurement of the projected benefit obligations    
Discount rate (as a percent) 4.20% 3.90%
United States Plan    
Presented as follows:    
Deferred amounts and other assets CAD 40 CAD 32