XML 115 R33.htm IDEA: XBRL DOCUMENT
v3.6.0.2

INVENTORIES, INCLUDING LONG-TERM MILL AND LEACH STOCKPILES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Inventory Disclosure [Abstract] |
Schedule of Inventory, Noncurrent | The components of inventories follow:
| December 31, |
| 2016 |  | 2015 |
Current inventories: |  |  |  |
Total materials and supplies, neta | $ | 1,306 |  |  | $ | 1,575 |  |
Mill stockpiles | $ | 259 |  |  | $ | 137 |  |
Leach stockpiles | 1,079 |  |  | 1,402 |  |
Total current mill and leach stockpiles | $ | 1,338 |  |  | $ | 1,539 |  |
Raw materials (primarily concentrate) | $ | 255 |  |  | $ | 220 |  |
Work-in-process | 114 |  |  | 108 |  |
Finished goods | 629 |  |  | 633 |  |
Total product inventories | $ | 998 |  |  | $ | 961 |  |
Long-term inventories: |  |  |  |
Mill stockpiles | $ | 487 |  |  | $ | 480 |  |
Leach stockpiles | 1,146 |  |  | 1,183 |  |
Total long-term inventoriesb | $ | 1,633 |  |  | $ | 1,663 |  |
a. | Materials and supplies inventory was net of obsolescence reserves totaling $29 million at December 31, 2016, and $26 million at December 31, 2015.
b. | Estimated metals in stockpiles not expected to be recovered within the next 12 months.
Components of Inventories | The components of inventories follow:
| December 31, |
| 2016 |  | 2015 |
Current inventories: |  |  |  |
Total materials and supplies, neta | $ | 1,306 |  |  | $ | 1,575 |  |
Mill stockpiles | $ | 259 |  |  | $ | 137 |  |
Leach stockpiles | 1,079 |  |  | 1,402 |  |
Total current mill and leach stockpiles | $ | 1,338 |  |  | $ | 1,539 |  |
Raw materials (primarily concentrate) | $ | 255 |  |  | $ | 220 |  |
Work-in-process | 114 |  |  | 108 |  |
Finished goods | 629 |  |  | 633 |  |
Total product inventories | $ | 998 |  |  | $ | 961 |  |
Long-term inventories: |  |  |  |
Mill stockpiles | $ | 487 |  |  | $ | 480 |  |
Leach stockpiles | 1,146 |  |  | 1,183 |  |
Total long-term inventoriesb | $ | 1,633 |  |  | $ | 1,663 |  |
a. | Materials and supplies inventory was net of obsolescence reserves totaling $29 million at December 31, 2016, and $26 million at December 31, 2015.
b. | Estimated metals in stockpiles not expected to be recovered within the next 12 months.

X
- References No definition available. + Details
Name: | us-gaap_InventoryDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfInventoryCurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle including inventoried costs relating to long-term contracts or programs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(d)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfInventoryNoncurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration