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SEGMENT INFORMATION - Consolidated Statements of Income Information (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jul. 01, 2019
Jun. 30, 2019
Dec. 31, 2020
Dec. 31, 2019
Disclosure of operating segments [line items]        
Revenue     $ 12,595 $ 9,717
Depreciation     2,208 2,032
Exploration, evaluation and project expenses     295 342
Other expenses (income)     (178) (3,100)
Profit (loss) before tax     4,946 6,357
Accretion     41 75
Share of income (loss)     1,290 605
Pueblo Viejo        
Disclosure of operating segments [line items]        
Revenue, attributable to non-controlling interests     660 566
Cost of sales, attributable to non-controlling interests     293 286
Share of income (loss)     365 274
Loulo Gounkoto        
Disclosure of operating segments [line items]        
Revenue, attributable to non-controlling interests     242 201
Cost of sales, attributable to non-controlling interests     144 150
Share of income (loss)     90 48
Nevada Gold Mines        
Disclosure of operating segments [line items]        
Revenue, attributable to non-controlling interests     2,432 1,049
Cost of sales, attributable to non-controlling interests     1,369 704
Share of income (loss)     1,036 329
North Mara, Bulyanhulu and Buzwagi [Member]        
Disclosure of operating segments [line items]        
Revenue, attributable to non-controlling interests     194 169
Cost of sales, attributable to non-controlling interests     114 125
Share of income (loss)     76 31
Tongon        
Disclosure of operating segments [line items]        
Revenue, attributable to non-controlling interests     52 39
Cost of sales, attributable to non-controlling interests     39 41
Share of income (loss)     14 (2)
Reportable segments [member]        
Disclosure of operating segments [line items]        
Revenue     12,584 9,717
Direct mining, royalties and community relations     5,205 4,864
Depreciation     2,165 1,991
Exploration, evaluation and project expenses     90 77
Other expenses (income)     123 85
Profit (loss) before tax     5,001 2,700
Operating segments        
Disclosure of operating segments [line items]        
Revenue     13,232 10,222
Direct mining, royalties and community relations     5,428 5,071
Depreciation     2,339 2,187
Exploration, evaluation and project expenses     92 80
Other expenses (income)     128 76
Profit (loss) before tax     5,245 2,808
Accretion     30 53
Operating segments | Carlin        
Disclosure of operating segments [line items]        
Revenue     2,952 1,862
Direct mining, royalties and community relations     1,318 998
Depreciation     306 312
Exploration, evaluation and project expenses     30 17
Other expenses (income)     1 4
Profit (loss) before tax     1,297 531
Operating segments | Cortez1 [Member]        
Disclosure of operating segments [line items]        
Revenue     1,409 1,325
Direct mining, royalties and community relations     543 511
Depreciation     221 240
Exploration, evaluation and project expenses     10 8
Other expenses (income)     4 16
Profit (loss) before tax     631 550
Operating segments | Turquoise Ridge        
Disclosure of operating segments [line items]        
Revenue     960 688
Direct mining, royalties and community relations     391 285
Depreciation     184 140
Exploration, evaluation and project expenses     7 4
Other expenses (income)     3 0
Profit (loss) before tax     375 259
Proportion of ownership interest in joint venture 75.00% 75.00%    
Percent of ownership by other parties in joint ventures 25.00% 25.00%    
Operating segments | Pueblo Viejo        
Disclosure of operating segments [line items]        
Revenue     1,613 1,409
Direct mining, royalties and community relations     511 525
Depreciation     224 196
Exploration, evaluation and project expenses     11 12
Other expenses (income)     (6) 0
Profit (loss) before tax     873 676
Operating segments | Loulo Gounkoto        
Disclosure of operating segments [line items]        
Revenue     1,208 1,007
Direct mining, royalties and community relations     452 456
Depreciation     267 295
Exploration, evaluation and project expenses     11 12
Other expenses (income)     29 6
Profit (loss) before tax     449 238
Operating segments | Kibali [Member]        
Disclosure of operating segments [line items]        
Revenue     648 505
Direct mining, royalties and community relations     223 207
Depreciation     174 196
Exploration, evaluation and project expenses     2 3
Other expenses (income)     5 (9)
Profit (loss) before tax     244 108
Operating segments | Veladero        
Disclosure of operating segments [line items]        
Revenue     333 386
Direct mining, royalties and community relations     144 208
Depreciation     69 115
Exploration, evaluation and project expenses     0 3
Other expenses (income)     6 3
Profit (loss) before tax     114 57
Operating segments | Porgera        
Disclosure of operating segments [line items]        
Revenue     140 403
Direct mining, royalties and community relations     81 242
Depreciation     25 42
Exploration, evaluation and project expenses     2 2
Other expenses (income)     50 4
Profit (loss) before tax     (18) 113
Operating segments | North Mara        
Disclosure of operating segments [line items]        
Revenue     571 462
Direct mining, royalties and community relations     227 213
Depreciation     91 97
Exploration, evaluation and project expenses     0 0
Other expenses (income)     (1) 6
Profit (loss) before tax     254 146
Operating segments | Bulyanhulu [Member]        
Disclosure of operating segments [line items]        
Revenue     240 53
Direct mining, royalties and community relations     112 26
Depreciation     72 19
Exploration, evaluation and project expenses     0 0
Other expenses (income)     25 27
Profit (loss) before tax     31 (19)
Operating segments | Other        
Disclosure of operating segments [line items]        
Revenue     3,158 2,122
Direct mining, royalties and community relations     1,426 1,400
Depreciation     706 535
Exploration, evaluation and project expenses     19 19
Other expenses (income)     12 19
Profit (loss) before tax     995 149
Reconciling items        
Disclosure of operating segments [line items]        
Revenue     11 0
Exploration, evaluation and project expenses     205 265
Other expenses (income)     (261) (3,132)
Reconciling items | Kibali [Member]        
Disclosure of operating segments [line items]        
Revenue     (648) (505)
Direct mining, royalties and community relations     (223) (207)
Depreciation     (174) (196)
Exploration, evaluation and project expenses     (2) (3)
Other expenses (income)     (5) 9
Profit (loss) before tax     $ (244) $ (108)