Inventories (Tables)

12 Months Ended

Dec. 31, 2012

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following:

	December 31,
	2012		2011
	(Dollars in millions)
Materials and supplies	$	157.6	$	123.7
Raw coal	164.3		108.1
Saleable coal	226.5		212.6
Total	$	548.4	$	444.4