Segment Information (Tables)

9 Months Ended

Sep. 30, 2013

Segment Reporting [Abstract]

Operating segment results

Reportable segment results were as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
	(Dollars in millions)
Revenues:
Australian Mining	$	705.3		$	866.0		$	2,188.1		$	2,605.0
Western U.S. Mining	705.4			783.5			1,986.4			2,213.5
Midwestern U.S. Mining	346.6			355.7			1,013.3			1,050.3
Trading and Brokerage	32.1			45.6			54.6			173.7
Corporate and Other	8.2			8.0			28.5			18.1
Total	$	1,797.6		$	2,058.8		$	5,270.9		$	6,060.6
Adjusted EBITDA:
Australian Mining	$	74.8		$	221.4		$	287.7		$	757.4
Western U.S. Mining	193.5			243.9			508.9			616.3
Midwestern U.S. Mining	112.4			103.5			331.5			317.4
Trading and Brokerage	17.2			35.7			(7.8		)	109.2
Corporate and Other	(85.9		)	(136.9		)	(273.9		)	(371.1		)
Total	$	312.0		$	467.6		$	846.4		$	1,429.2

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

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
	(Dollars in millions)
Total Adjusted EBITDA	$	312.0		$	467.6		$	846.4		$	1,429.2
Depreciation, depletion and amortization	186.4			172.5			542.8			470.7
Asset impairment	—			7.7			21.5			7.7
Amortization of basis difference related to equity affiliates	—			(0.2		)	4.0			3.0
Asset retirement obligation expenses	13.4			21.1			50.7			53.3
Interest expense	111.0			99.4			323.1			308.3
Interest income	(4.2		)	(5.1		)	(11.2		)	(19.7		)
Income tax (benefit) provision	(18.6		)	49.3			(199.6		)	85.5
Income from continuing operations, net of income taxes	$	24.0		$	122.9		$	115.1		$	520.4