Name:	nem_ConcentrateInventoryNetOfReserves
Namespace Prefix:	nem_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Excludes ore stockpiles on leach pads.

No definition available.

Name:	nem_InventoryOtherThanOreStockpilesOnLeachpadsNetOfReserves
Namespace Prefix:	nem_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of materials, supplies and other inventory expected to be sold, or consumed within one year or operating cycle, if longer.

No definition available.

Name:	nem_MaterialsSuppliesAndOtherInventoryNetOfReserves
Namespace Prefix:	nem_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of precious metals expected to be sold, or consumed within one year or operating cycle, if longer.

No definition available.

Name:	nem_PreciousMetalsInventoryNetOfReserves
Namespace Prefix:	nem_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- References

No definition available.

Name:	us-gaap_InventoryNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.BB)
-URI https://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6)(a)(3))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682