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Provisions and Other Liabilities (Tables)
 12 Months Ended
Dec. 31, 2018
Text block [abstract]  
Summary of Provisions and Other Liabilities

(CAD$ in millions)

    December 31,
2018		      December 31,
2017		  

Provisions (a)

    $ 1,653      $ 1,905  

Derivative liabilities (net of current portion of $6 (2017 – $nil))

      39        43  

IMSA payable

      58        —    

Other

      42        29  
  

 

 

     

 

 

  
   $ 1,792      $ 1,977  
  

 

 

     

 

 

  
Summary of Movements in Provisions

The following table summarizes the movements in provisions for the year ended December 31, 2018:

 

(CAD$ in millions)

   

Decommissioning and
Restoration Provisions

     

Other

     

Total

  

As at January 1, 2018

    $ 1,844      $ 194      $ 2,038  

Settled during the year

      (76 )       (29 )       (105 ) 

Change in discount rate

      (409 )       —          (409 ) 

Change in amount and timing of cash flows

      111        18        129  

Accretion

      101        2        103  

Other

      (2 )       —          (2 ) 

Changes in foreign exchange rates

      45        9        54  
  

 

 

     

 

 

     

 

 

  

As at December 31, 2018

      1,614        194        1,808  

Less current portion of provisions (Note 18)

      (91 )       (64 )       (155 ) 
  

 

 

     

 

 

     

 

 

  

Long-term provisions

    $ 1,523      $ 130      $ 1,653