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PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Nov. 28, 2019
Jan. 01, 2019
Dec. 31, 2019
Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items]        
Additions to right-of-use assets     $ 49  
Depreciation, right-of-use assets     (25)  
Right-of-use assets   $ 85 75  
Additions other than through business combinations, property, plant and equipment     5,127 $ 1,228
Expense relating to short-term leases for which recognition exemption has been used   (6) 56  
Expense relating to variable lease payments not included in measurement of lease liabilities   $ 38 97  
MIning property costs subject to depreciation        
Disclosure of detailed information about property, plant and equipment [line items]        
Additions other than through business combinations, property, plant and equipment     3,458 199
MIning property costs subject to depreciation | Revision of LOM Plan        
Disclosure of detailed information about property, plant and equipment [line items]        
Accumulated expense decrease     49 85
Construction activities        
Disclosure of detailed information about property, plant and equipment [line items]        
Capital commitments     $ 383 82
Turquoise Ridge        
Disclosure of detailed information about property, plant and equipment [line items]        
Additions other than through business combinations, property, plant and equipment       $ 3,422
KCGM [Member]        
Disclosure of detailed information about property, plant and equipment [line items]        
Proportion of Ownership Interest Sold 50.00%