Condensed Consolidating Financial Statements - Balance Sheet (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013
Assets
Cash and cash equivalents	$ 2,964	$ 2,403	$ 1,778	$ 1,555
Trade receivables	175	186
Other accounts receivables	174	290
Investments (Note 16)	25	73
Inventories	766	700
Stockpiles and ore on leach pads	782	666
Deferred income tax assets	193	240
Other current assets	116	881
Current assets	5,195	5,439
Property, plant and mine development, net	14,335	13,650
Investments, Fair/Equity Basis	378	334
Stockpiles and ore on leach pads	3,014	2,820
Deferred income tax assets	1,704	1,790
Other long-term assets	928	883
Total assets	25,554	24,916
Liabilities
Debt	266	166
Accounts payable	435	406
Employee-related benefits	254	307
Income and mining taxes	119	74
Other current liabilities	617	1,245
Current liabilities	1,691	2,198
Debt (Note 20)	6,085	6,480
Reclamation and remediation liabilities (Note 4)	1,712	1,606
Deferred income tax liabilities	763	656
Employee-related benefits	419	492
Reclamation and remediation liabilities (Note 4)	315	395
Total liabilities	10,985	11,827
Equity
Newmont stockholders’ equity	11,544	10,274
Noncontrolling interests	3,025	2,815
Total equity	14,569	13,089	13,099
Total liabilities and equity	25,554	24,916
Reportable Legal Entities | Newmont Mining Corporation
Assets
Intercompany receivable	4,496	4,058
Deferred income tax assets	3	3
Current assets	4,499	4,061
Property, plant and mine development, net	27	28
Investments in subsidiaries	15,907	14,553
Deferred income tax assets	204	275
Long-term intercompany receivable	1,796	1,968
Other long-term assets	43	48
Total assets	22,476	20,933
Liabilities
Intercompany payable	4,895	4,299
Other current liabilities	82	67
Current liabilities	4,977	4,366
Debt (Note 20)	5,874	6,055
Long-term intercompany payable	81	238
Total liabilities	10,932	10,659
Equity
Newmont stockholders’ equity	11,544	10,274
Total equity	11,544	10,274
Total liabilities and equity	22,476	20,933
Reportable Legal Entities | Newmont USA
Assets
Cash and cash equivalents	1,127	1,097	673	428
Trade receivables	33	23
Other accounts receivables	15	21
Intercompany receivable	6,283	6,027
Investments (Note 16)		25
Inventories	162	157
Stockpiles and ore on leach pads	240	201
Deferred income tax assets	137	153
Other current assets	52	95
Current assets	8,049	7,799
Property, plant and mine development, net	3,198	3,190
Investments, Fair/Equity Basis	15	13
Investments in subsidiaries	4,087	4,121
Stockpiles and ore on leach pads	575	580
Deferred income tax assets	490	535
Long-term intercompany receivable	380	220
Other long-term assets	240	238
Total assets	17,034	16,696
Liabilities
Debt	3	1
Accounts payable	81	60
Intercompany payable	5,346	5,034
Employee-related benefits	103	141
Other current liabilities	151	176
Current liabilities	5,684	5,412
Debt (Note 20)	8	5
Reclamation and remediation liabilities (Note 4)	242	236
Deferred income tax liabilities	46	43
Employee-related benefits	268	343
Reclamation and remediation liabilities (Note 4)	39	37
Total liabilities	6,287	6,076
Equity
Newmont stockholders’ equity	10,747	10,620
Total equity	10,747	10,620
Total liabilities and equity	17,034	16,696
Reportable Legal Entities | Other Subsidiaries
Assets
Cash and cash equivalents	1,837	1,306	$ 1,105	$ 1,127
Trade receivables	142	163
Other accounts receivables	159	269
Intercompany receivable	7,811	6,698
Investments (Note 16)	25	48
Inventories	604	543
Stockpiles and ore on leach pads	542	465
Deferred income tax assets	53	84
Other current assets	64	786
Current assets	11,237	10,362
Property, plant and mine development, net	11,150	10,473
Investments, Fair/Equity Basis	363	321
Investments in subsidiaries	2,890	2,822
Stockpiles and ore on leach pads	2,439	2,240
Deferred income tax assets	1,499	1,470
Long-term intercompany receivable	493	700
Other long-term assets	645	597
Total assets	30,716	28,985
Liabilities
Debt	263	165
Accounts payable	354	346
Intercompany payable	8,349	7,450
Employee-related benefits	151	166
Income and mining taxes	119	74
Other current liabilities	384	1,002
Current liabilities	9,620	9,203
Debt (Note 20)	203	420
Reclamation and remediation liabilities (Note 4)	1,470	1,370
Deferred income tax liabilities	1,206	1,103
Employee-related benefits	151	149
Long-term intercompany payable	2,628	2,691
Reclamation and remediation liabilities (Note 4)	276	358
Total liabilities	15,554	15,294
Equity
Newmont stockholders’ equity	10,403	9,225
Noncontrolling interests	4,759	4,466
Total equity	15,162	13,691
Total liabilities and equity	30,716	28,985
Eliminations
Assets
Intercompany receivable	(18,590)	(16,783)
Current assets	(18,590)	(16,783)
Property, plant and mine development, net	(40)	(41)
Investments in subsidiaries	(22,884)	(21,496)
Deferred income tax assets	(489)	(490)
Long-term intercompany receivable	(2,669)	(2,888)
Total assets	(44,672)	(41,698)
Liabilities
Intercompany payable	(18,590)	(16,783)
Current liabilities	(18,590)	(16,783)
Deferred income tax liabilities	(489)	(490)
Long-term intercompany payable	(2,709)	(2,929)
Total liabilities	(21,788)	(20,202)
Equity
Newmont stockholders’ equity	(21,150)	(19,845)
Noncontrolling interests	(1,734)	(1,651)
Total equity	(22,884)	(21,496)
Total liabilities and equity	$ (44,672)	$ (41,698)