Subsequent Events Subsequent Events (Tables)

6 Months Ended

Jun. 30, 2014

Subsequent Events [Abstract]

Major Classes of Assets and Liabilities

Summarized below are the major classes of assets and liabilities within our coal business:

	June 30, 2014
	(Unaudited)
Inventories	$	22.8
Properties, plant and equipment, net	38.3
Lease and mineral rights, net	18.7
Accrual for black lung benefits	25.3
Retirement benefit liabilities	18.9
Asset retirement obligations	10.9
Other liabilities, net	17.1
Equity	7.6