Income Per Common Share - Summary of Income Per Common Share (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net income (loss) attributable to Newmont stockholders
Continuing operations	$ 182	$ (2,133)	$ 299	$ (1,819)
Discontinued operations	(2)	74	(19)	74
Net income attributable to Newmont stockholders	$ 180	$ (2,059)	$ 280	$ (1,745)
Weighted average common shares (millions):
Basic	499	497	498	497
Effect of employee stock-based awards			1
Diluted	499	497	499	497
Basic:
Continuing operations	$ 0.37	$ (4.29)	$ 0.60	$ (3.66)
Discontinued operations	$ (0.01)	$ 0.15	$ (0.04)	$ 0.15
Income per common share, basic	$ 0.36	$ (4.14)	$ 0.56	$ (3.51)
Diluted:
Continuing operations	$ 0.37	$ (4.29)	$ 0.60	$ (3.66)
Discontinued operations	$ (0.01)	$ 0.15	$ (0.04)	$ 0.15
Income per common share, diluted	$ 0.36	$ (4.14)	$ 0.56	$ (3.51)