Property, Plant, Equipment and Mine Development (Tables)

6 Months Ended

Jun. 30, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

The composition of property, plant, equipment and mine development, net, as of June 30, 2017 and December 31, 2016 is set forth in the table below. Refer to Note 3. "Emergence from the Chapter 11 Cases and Fresh Start Reporting" for details regarding the impact of fresh start reporting on property, plant, equipment and mine development.

	Successor			Predecessor
	June 30, 2017			December 31, 2016
	(Dollars in millions)
Land and coal interests	$	3,785.8		$	10,330.8
Buildings and improvements	467.3			1,507.6
Machinery and equipment	1,084.9			2,130.2
Less: Accumulated depreciation, depletion and amortization	(123.8		)	(5,191.9		)
Total, net	$	5,214.2		$	8,776.7