Income (Loss) Per Common Share - Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net income (loss) attributable to Newmont stockholders:
Continuing operations	$ 202	$ 210	$ 440	$ 509
Discontinued operations	17	3	34	(16)
Net income (loss) attributable to Newmont stockholders	$ 219	$ 213	$ 474	$ 493
Weighted average common shares (millions):
Basic	529	499	511	499
Effect of employee stock-based awards	1	1	1
Diluted	530	500	512	499
Basic:
Continuing operations	$ 0.38	$ 0.42	$ 0.86	$ 1.02
Discontinued operations	0.04	0.01	0.07	(0.03)
Income (loss) per common share, basic	0.42	0.43	0.93	0.99
Diluted:
Continuing operations	0.38	0.42	0.86	1.02
Discontinued operations	0.04	0.01	0.07	(0.03)
Income (loss) per common share, diluted	$ 0.42	$ 0.43	$ 0.93	$ 0.99