XML 35 R8.htm IDEA: XBRL DOCUMENT v3.8.0.1
PROPERTIES AND ACCUMULATED DEPRECIATION
12 Months Ended
Dec. 31, 2017
Property, Plant and Equipment [Abstract]  
PROPERTIES AND ACCUMULATED DEPRECIATION
PROPERTIES AND ACCUMULATED DEPRECIATION
 
December 31,
(Dollars in millions)
2017
 
2016
Properties
 
 
 
Land
$
161

 
$
157

Buildings
1,325

 
1,256

Machinery and equipment
10,122

 
9,646

Construction in progress
762

 
640

Properties and equipment at cost
$
12,370

 
$
11,699

Less:  Accumulated depreciation
6,763

 
6,423

Net properties
$
5,607

 
$
5,276



Depreciation expense was $420 million, $412 million, and $402 million for 2017, 2016, and 2015, respectively.

Cumulative construction-period interest of $111 million and $169 million, reduced by accumulated depreciation of $49 million and $111 million, is included in net properties at December 31, 2017 and 2016, respectively.

Eastman capitalized $8 million of interest in 2017 and $7 million of interest in both 2016 and 2015.