Property, Plant, and Equipment

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

PROPERTY, PLANT, AND EQUIPMENT

5. PROPERTY, PLANT, AND EQUIPMENT

Major classes of property, plant, and equipment, which include capital lease assets, consisted of the following (in millions):

	December 31,
	2016			2015
Land	$	400		$	400
Crude oil processing facilities	29,754			28,688
Transportation and terminaling facilities	3,692			3,642
Grain processing equipment	855			792
Administrative buildings	838			789
Other	1,464			1,423
Construction in progress	730			1,173
Property, plant, and equipment, at cost	37,733			36,907
Accumulated depreciation	(11,261		)	(10,204		)
Property, plant, and equipment, net	$	26,472		$	26,703

We have various assets under capital leases that primarily support our refining operations totaling $118 million and $134 million as of December 31, 2016 and 2015, respectively. Accumulated amortization on assets under capital leases was $45 million and $50 million as of December 31, 2016 and 2015, respectively.

Depreciation expense for the years ended December 31, 2016, 2015, and 2014 was $1.3 billion, $1.3 billion, and $1.2 billion, respectively.