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INVESTMENTS - Reconciliation of Summarized Financial Information to Carrying Value (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Joint ventures      
Disclosure of joint ventures [line items]      
Carrying value $ 4,594 $ 4,670 $ 4,527
Kibali [Member]      
Disclosure of joint ventures [line items]      
Beginning balance 4,817    
Net income 432 422  
Dividends received from equity investees (461)    
Dividends declared in prior year and received in current year 0    
Ending balance 4,788 4,817  
Barrick's share of net assets 2,156    
Equity earnings adjustment 0    
Goodwill recognition 1,111    
Carrying value 3,267 3,279 3,218
Jabal Sayid [Member]      
Disclosure of joint ventures [line items]      
Beginning balance 493    
Net income 318 148  
Dividends received from equity investees (292)    
Dividends declared in prior year and received in current year 0    
Ending balance 519 493  
Barrick's share of net assets 259    
Equity earnings adjustment 0    
Goodwill recognition 123    
Carrying value 382 369 296
Zaldivar [Member]      
Disclosure of joint ventures [line items]      
Beginning balance 1,823    
Net income 138 24  
Dividends received from equity investees (285)    
Dividends declared in prior year and received in current year 130    
Ending balance 1,806 1,823  
Barrick's share of net assets 903    
Equity earnings adjustment (10)    
Goodwill recognition 0    
Carrying value $ 893 $ 967 $ 955