Exploration and Evaluation Assets (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure Of Exploration And Evaluation Assets [Abstract]

Summary of Exploration and Valuation Assets

	Total
As at December 31, 2017		3,673
Additions		374
Transfers to Assets Held for Sale		(1	)
Transfers From Assets Held for Sale		46
Exploration Expense (Note 10)		(2,123	)
Change in Decommissioning Liabilities		(8	)
Divestitures		(1,176	)
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