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Investment and other income (Tables)
 3 Months Ended
Mar. 31, 2021
Gains and Losses on Asset Sales
Investment and other income included gains and losses on asset sales as follows:
 
    
    Three Months
    to March 31
  
millions of Canadian dollars
   
2021
     2020  
Proceeds from asset sales
   
 
7
 
     9  
Book value of asset sales
   
 
4
 
     2  
Gain (loss) on asset sales,
before
 
tax
   
 
3
 
     7  
Gain (loss) on asset sales,
after
 
tax
   
 
       2
 
            6