PROPERTY

12 Months Ended

Dec. 31, 2017

Property, Plant and Equipment [Abstract]

PROPERTY

PROPERTY

The following table provides a breakdown of property:

Property at Dec 31 1	Estimated Useful  Lives (Years)	2017		2016
In millions
Land and land improvements	0-25	$	2,535	$	2,524
Buildings	5-50	5,920		5,935
Machinery and equipment	3-25	43,208		38,499
Other property	3-50	5,277		4,380
Construction in progress	—	3,486		6,100
Total property		$	60,426	$	57,438

1. Updated to conform with the presentation adopted for DowDuPont.

In millions	2017		2016		2015
Depreciation expense	$	2,329	$	2,130	$	1,908
Capitalized interest	$	240	$	243	$	218