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Other long-term obligations (Tables)
3 Months Ended
Mar. 31, 2021
Other Long-Term Obligations
     As at
Mar 31
     As at
Dec 31
 
millions of Canadian dollars
  
2021
     2020  
Employee retirement benefits
(a)
  
 
2,036
 
     2,105  
Asset retirement obligations and other environmental liabilities
(b)
  
 
1,680
 
     1,676  
Share-based incentive compensation liabilities
  
 
68
 
     45  
Operating lease liability
(c)
  
 
92
 
     95  
Other obligations
  
 
218
 
     179  
Total other long-term obligations
  
 
4,094
 
     4,100  
(a)
Total recorded employee retirement benefits obligations also included $
58
 million in current liabilities (2020 - $
58
million).
(b)
Total asset retirement obligations and other environmental liabilities also included $
100
 million in current liabilities (2020 - $
100
million).
(c)
Total operating lease liability also included $
82
 million in current liabilities (2020 - $
97
million). In addition to the total operating lease liability, additional undiscounted commitments for leases not yet commenced totalled $
30
 million (2020 - $
27
million).