XML 54 R33.htm IDEA: XBRL DOCUMENT v3.8.0.1

PROPERTY: (Tables)

12 Months Ended

Dec. 31, 2017

PROPERTY:

Schedule of major classes of property, plant and equipment

		At December 31,
(in millions)		2017			2016
Buildings and equipment		$	12,552.8		$	12,177.1
Construction in progress			2,301.9			1,811.8
Mine development			267.9			259.1
Mineral assets			83.2			83.2
Land, other than mineral			218.4			142.1
​	​	​	​	​	​	​	​
Total property			15,424.2			14,473.3
Accumulated depreciation, amortization and depletion			(6,324.6	)		(5,706.8	)
​	​	​	​	​	​	​	​
Total property and mine development, net		$	9,099.6		$	8,766.5
​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	​

X

- References

No definition available.

+ Details

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

X

- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration