XML 131 R109.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
PENSIONS AND OTHER POST RETIREMENT BENEFITS - Investment Objectives (Details) - Defined benefits pension plans - CAD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Pension and other PostRetirement Benefits,      
Employer contributions   $ 157 $ 182
Contribution deposited in solvency reserve account   $ 2 $ 2
Expected cash contributions $ 176    
Equities      
Pension and other PostRetirement Benefits,      
Plan asset allocation percentage   50.00% 48.00%
Equities | Canada      
Pension and other PostRetirement Benefits,      
Plan asset allocation percentage   12.00% 13.00%
Equities | United States      
Pension and other PostRetirement Benefits,      
Plan asset allocation percentage   19.00% 17.00%
Equities | Foreign      
Pension and other PostRetirement Benefits,      
Plan asset allocation percentage   19.00% 18.00%
Fixed income | Canada      
Pension and other PostRetirement Benefits,      
Plan asset allocation percentage   41.00% 43.00%
Real estate      
Pension and other PostRetirement Benefits,      
Plan asset allocation percentage   100.00% 100.00%
Real estate | Canada      
Pension and other PostRetirement Benefits,      
Plan asset allocation percentage   9.00% 9.00%