Financial Instruments and Financial Risk Management - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 CAD ($)	Dec. 31, 2020 CAD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Disclosure of detailed information about financial instruments [line items]
Risk exposure			$ 221	$ (135)
Settlement payables	$ 9,000,000	$ 6,000,000
Non-current derivative financial liabilities	51,000,000	26,000,000
Non-current derivative financial assets	63,000,000	77,000,000
Non-current derivative financial liabilities	51,000,000	26,000,000
Sale and Purchase Contracts
Disclosure of detailed information about financial instruments [line items]
Current derivative financial assets	1,100,000,000	949,000,000
Settlement payables	39,000,000	61,000,000
Zinc | Embedded Derivatives
Disclosure of detailed information about financial instruments [line items]
Non-current derivative financial liabilities	60,000,000	32,000,000
Non-current derivative financial liabilities	60,000,000	32,000,000
Zinc | Trade accounts payable and other liabilities | Embedded Derivatives
Disclosure of detailed information about financial instruments [line items]
Non-current derivative financial liabilities	9,000,000	6,000,000
Non-current derivative financial liabilities	9,000,000	6,000,000
Zinc | Provisions and other liabilities | Embedded Derivatives
Disclosure of detailed information about financial instruments [line items]
Non-current derivative financial liabilities	51,000,000	26,000,000
Non-current derivative financial liabilities	51,000,000	26,000,000
Gold | Embedded Derivatives
Disclosure of detailed information about financial instruments [line items]
Current derivative financial assets	$ 43,000,000	51,000,000
Ongoing payment percent	15.00%
Gold | Prepaid and other current assets | Embedded Derivatives
Disclosure of detailed information about financial instruments [line items]
Current derivative financial assets	$ 3,000,000	5,000,000
Gold | Financial and other assets | Embedded Derivatives
Disclosure of detailed information about financial instruments [line items]
Current derivative financial assets	40,000,000	46,000,000
Silver | Embedded Derivatives
Disclosure of detailed information about financial instruments [line items]
Non-current derivative financial liabilities	$ 25,000,000
Ongoing payment percent	5.00%
Non-current derivative financial assets		33,000,000
Non-current derivative financial liabilities	$ 25,000,000
Silver | Prepaid and other current assets | Embedded Derivatives
Disclosure of detailed information about financial instruments [line items]
Non-current derivative financial assets	2,000,000	2,000,000
Silver | Financial and other assets | Embedded Derivatives
Disclosure of detailed information about financial instruments [line items]
Non-current derivative financial liabilities	23,000,000	31,000,000
Non-current derivative financial liabilities	23,000,000	31,000,000
Swap contract
Disclosure of detailed information about financial instruments [line items]
Settlement payables	9,000,000
Swap contract | Zinc
Disclosure of detailed information about financial instruments [line items]
Current derivative financial assets	9,000,000
Canada, Dollars | Hedges of net investment in foreign operations
Disclosure of detailed information about financial instruments [line items]
Gains (losses) on hedges of net investments in foreign operations, before tax	13,000,000	128,000,000
Canada, Dollars | Borrowings | Hedges of net investment in foreign operations
Disclosure of detailed information about financial instruments [line items]
Risk exposure			$ 2,700	$ 3,600
Currency risk | Canada, Dollars
Disclosure of detailed information about financial instruments [line items]
Reasonably possible change in risk variable, amount	0.10
Impact on pre-tax earnings	(17,000,000)	(18,000,000)
Reasonably possible change in risk variable, impact on other comprehensive income (loss)	(582,000,000)	(415,000,000)
Interest rate risk
Disclosure of detailed information about financial instruments [line items]
Impact on pre-tax earnings	$ 1,000,000	4,000,000
Commodity Price Risk
Disclosure of detailed information about financial instruments [line items]
Reasonably possible change In risk variable, percent	10.00%
Risk exposure	$ 23,000,000	32,000,000
Commodity Price Risk | Zinc
Disclosure of detailed information about financial instruments [line items]
Impact on pre-tax earnings	$ 7,000,000	$ (2,000,000)