XML 99 R123.htm IDEA: XBRL DOCUMENT v3.20.1
Employee Benefit Plans (Changes in Benefit Obligation and Plan Assets and the Funded Status) (Details) - CAD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Defined benefit pension plans    
Change in Projected Benefit Obligation ("PBO") and Accumulated Post-retirement Benefit Obligation ("APBO")    
Benefit Obligation, Beginning Balance $ 2,650 $ 2,683
Service cost 47 51
Plan participant contributions 8 8
Interest cost 102 95
Benefits Paid (130) (143)
Actuarial (gains) losses 231 (133)
Settlement, curtailments (20) (18)
Foreign currency translation adjustment (66) 107
Benefit Obligation, Ending Balance 2,822 2,650
Change in plan assets    
Plan Assets, Beginning Balance 2,300 2,408
Employer contributions 52 51
Plan participant contributions 8 8
Benefits paid (130) (143)
Actual return on assets, net of expenses 424 (105)
Settlements and curtailments (7) (18)
Foreign currency translation adjustment (54) 99
Plan Assets, Ending Balance 2,593 2,300
Funded Status    
Funded status, end of year (229) (350)
Non-pension Benefit Plans    
Change in Projected Benefit Obligation ("PBO") and Accumulated Post-retirement Benefit Obligation ("APBO")    
Benefit Obligation, Beginning Balance 350 356
Service cost 4 6
Plan participant contributions 5 5
Interest cost 14 13
Benefits Paid (23) (33)
Actuarial (gains) losses 19 (25)
Settlement, curtailments 0 0
Foreign currency translation adjustment (16) 28
Benefit Obligation, Ending Balance 353 350
Change in plan assets    
Plan Assets, Beginning Balance 49 45
Employer contributions 19 31
Plan participant contributions 5 5
Benefits paid (23) (33)
Actual return on assets, net of expenses 7 (3)
Settlements and curtailments 0 0
Foreign currency translation adjustment (1) 4
Plan Assets, Ending Balance 56 49
Funded Status    
Funded status, end of year $ (297) $ (301)