Segment Information (Tables)

6 Months Ended

Jun. 30, 2011

Segment Information [Abstract]

Operating segment results

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2011			2010			2011			2010
	(Dollars in millions)
Revenues:
Western U.S. Mining	$	662.3		$	652.1		$	1,366.0		$	1,314.2
Midwestern U.S. Mining		327.9			323.3			694.9			632.7
Australian Mining		885.3			597.4			1,465.9			1,043.9
Trading and Brokerage		114.1			81.8			198.0			171.9
Corporate and Other		18.4			6.8			28.1			14.3
Total	$	2,008.0		$	1,661.4		$	3,752.9		$	3,177.0
Adjusted EBITDA:
Western U.S. Mining	$	134.1		$	207.3		$	313.5		$	415.2
Midwestern U.S. Mining		82.0			71.4			191.9			145.5
Australian Mining		376.9			223.6			567.4			346.9
Trading and Brokerage		50.4			14.3			77.2			46.7
Corporate and Other		(63.9	)		(76.2	)		(154.3	)		(156.7	)
Total	$	579.5		$	440.4		$	995.7		$	797.6

Reconciliation of Adjusted EBITDA to consolidated income from continuing operations

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2011			2010			2011			2010
	(Dollars in millions)
Total Adjusted EBITDA	$	579.5		$	440.4		$	995.7		$	797.6
Depreciation, depletion and amortization		105.3			105.1			214.1			210.6
Asset retirement obligation expense		15.8			10.9			28.9			20.4
Interest expense		49.1			57.9			100.1			107.9
Interest income		(3.5	)		(1.6	)		(7.6	)		(2.6	)
Income tax provision		119.8			53.4			187.6			109.5
Income from continuing operations, net of income taxes	$	293.0		$	214.7		$	472.6		$	351.8