Segment Information (Tables)

9 Months Ended

Sep. 30, 2014

Segment Reporting [Abstract]

Reportable segment results

Reportable segment results were as follows:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2013			2014			2013
	(Dollars in millions)
Revenues:
Australian Mining	$	676.3		$	705.3		$	1,995.5		$	2,188.1
Western U.S. Mining	711.1			705.4			2,119.7			1,986.4
Midwestern U.S. Mining	312.9			346.6			920.5			1,013.3
Trading and Brokerage	15.0			32.1			46.3			54.6
Corporate and Other	7.6			8.2			25.7			28.5
Total	$	1,722.9		$	1,797.6		$	5,107.7		$	5,270.9
Adjusted EBITDA:
Australian Mining	$	16.9		$	74.8		$	30.9		$	287.7
Western U.S. Mining	194.8			193.5			590.7			508.9
Midwestern U.S. Mining	86.8			112.4			235.4			331.5
Trading and Brokerage	3.3			17.2			7.7			(7.8		)
Corporate and Other	(85.5		)	(85.9		)	(258.4		)	(273.9		)
Total	$	216.3		$	312.0		$	606.3		$	846.4

Reconciliation of Adjusted EBITDA to consolidated (loss) income from continuing operations, net of income taxes

A reconciliation of Adjusted EBITDA to consolidated (loss) income from continuing operations, net of income taxes follows:

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2014			2013			2014			2013
	(Dollars in millions)
Adjusted EBITDA	$	216.3		$	312.0		$	606.3		$	846.4
Depreciation, depletion and amortization	(163.6		)	(186.4		)	(483.9		)	(542.8		)
Asset impairment	—			—			—			(21.5		)
Amortization of basis difference related to equity affiliates	(1.5		)	—			(4.0		)	(4.0		)
Asset retirement obligation expenses	(15.0		)	(13.4		)	(46.5		)	(50.7		)
Interest expense	(114.5		)	(111.0		)	(323.0		)	(323.1		)
Interest income	3.7			4.2			11.7			11.2
Income tax (provision) benefit	(79.4		)	18.6			(30.9		)	199.6
(Loss) income from continuing operations, net of income taxes	$	(154.0	)	$	24.0		$	(270.3	)	$	115.1