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Exploration and Evaluation Assets
 12 Months Ended
Dec. 31, 2020
Disclosure Of Exploration And Evaluation Assets [Abstract]  
Exploration and Evaluation Assets

17. EXPLORATION AND EVALUATION ASSETS

 

Total

 

As at December 31, 2018

 

785

 

Additions

 

73

 

Exploration Expense (Note 10)

 

(82

)

Change in Decommissioning Liabilities

 

9

 

Exchange Rate Movements and Other

 

2

 

As at December 31, 2019

 

787

 

Additions

 

48

 

Transfers to PP&E (Note 18) (1)

 

(47

)

Exploration Expense (Note 10)

 

(91

)

Depletion

 

(18

)

Change in Decommissioning Liabilities

 

5

 

Divestitures (Note 8)

 

(61

)

As at December 31, 2020

 

623

 

 (1)Includes the $41 million reclassification of the GORR retained in the sale of the Marten Hills assets (see Note 8).