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NON-CONTROLLING INTERESTS - Summarized Statements of Income (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Disclosure of subsidiaries [line items]    
Revenue $ 8,374 $ 8,558
Net income 1,516 861
Other comprehensive income (loss) 38 188
Total comprehensive income 1,554 1,049
Net cash provided by (used in) operating activities 2,065 2,640
Net cash used in investing activities (337) (412)
Net cash provided by (used in) financing activities (1,886) (2,297)
Net decrease in cash and equivalents (155) (66)
Pueblo Viejo    
Disclosure of subsidiaries [line items]    
Revenue 1,417 1,548
Net income 293 810
Other comprehensive income (loss) 0 0
Total comprehensive income 293 810
Dividends paid to NCI 0 0
Net cash provided by (used in) operating activities 283 602
Net cash used in investing activities (112) (54)
Net cash provided by (used in) financing activities (539) (350)
Net decrease in cash and equivalents (368) 198
Acacia    
Disclosure of subsidiaries [line items]    
Revenue 751 1,045
Net income (630) 81
Other comprehensive income (loss) 0 0
Total comprehensive income (630) 81
Dividends paid to NCI 13 7
Net cash provided by (used in) operating activities (15) 324
Net cash used in investing activities (160) (190)
Net cash provided by (used in) financing activities (62) (49)
Net decrease in cash and equivalents $ (237) $ 85