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PROPERTIES AND ACCUMULATED DEPRECIATION

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

PROPERTIES AND ACCUMULATED DEPRECIATION

PROPERTIES AND ACCUMULATED DEPRECIATION

	December 31,
(Dollars in millions)	2015				2014
Properties
Land	$	163			$	175
Buildings and building equipment	1,148				1,128
Machinery and equipment	9,333				9,252
Construction in progress	590				471
Properties and equipment at cost	$	11,234			$	11,026
Less:  Accumulated depreciation	6,104				5,939
Net properties	$	5,130			$	5,087

Depreciation expense was $402 million, $355 million, and $345 million for 2015, 2014, and 2013, respectively.

Cumulative construction-period interest of $163 million and $162 million, reduced by accumulated depreciation of $107 million and $103 million, is included in net properties at December 31, 2015 and 2014, respectively.

Interest capitalized during 2015, 2014, and 2013 was $7 million, $7 million, and $4 million, respectively.

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- References

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- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

+ 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 210.5-02.13-14)
-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 205
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1361-107760

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2921-110230

Reference 4: 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

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