Segment Information (Tables)

9 Months Ended

Sep. 30, 2012

Segment Reporting [Abstract]

Operating segment results

Reportable segment results were as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2012			2011			2012			2011
	(Dollars in millions)
Revenues:
Australian Mining	$	866.0		$	718.7		$	2,605.0		$	2,155.3
Western U.S. Mining	783.5			758.5			2,213.5			2,124.5
Midwestern U.S. Mining	355.7			368.5			1,050.1			1,025.3
Trading and Brokerage	45.6			131.5			173.7			329.5
Corporate and Other	8.0			3.4			18.3			31.5
Total	$	2,058.8		$	1,980.6		$	6,060.6		$	5,666.1
Adjusted EBITDA:
Australian Mining	$	221.4		$	246.1		$	757.4		$	852.2
Western U.S. Mining	243.9			218.7			616.3			532.2
Midwestern U.S. Mining	103.5			105.4			317.4			292.8
Trading and Brokerage	35.7			57.4			109.2			134.6
Corporate and Other	(144.6		)	(119.1		)	(378.8		)	(273.4		)
Total	$	459.9		$	508.5		$	1,421.5		$	1,538.4

Reconciliation of Adjusted EBITDA to consolidated income from continuing operations

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,
	2012			2011			2012			2011
	(Dollars in millions)
Total Adjusted EBITDA	$	459.9		$	508.5		$	1,421.5		$	1,538.4
Depreciation, depletion and amortization	172.5			108.4			470.7			317.6
Amortization of basis difference related to equity affiliates	(0.2		)	—			3.0			—
Asset retirement obligation expenses	21.1			14.6			53.3			43.3
Interest expense	99.4			59.2			308.3			159.1
Interest income	(5.1		)	(4.1		)	(19.7		)	(11.7		)
Income tax provision	49.3			39.2			85.5			238.8
Income from continuing operations, net of income taxes	$	122.9		$	291.2		$	520.4		$	791.3