Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Current assets
Cash and cash equivalents	$ 334.3	$ 298.0
Accounts receivable, net of allowance for doubtful accounts of $10.0 at September 30, 2015 and $5.8 at December 31, 2014	370.0	563.1
Inventories	348.1	406.5
Assets from coal trading activities, net	42.3	57.6
Deferred income taxes	76.5	80.0
Other current assets	382.4	305.8
Total current assets	1,553.6	1,711.0
Property, plant, equipment and mine development, net	9,475.4	10,577.3
Deferred income taxes	1.0	0.7
Investments and other assets	633.4	902.1
Total assets	11,663.4	13,191.1
Current liabilities
Current portion of long-term debt	19.5	21.2
Liabilities from coal trading activities, net	28.1	32.7
Accounts payable and accrued expenses	1,468.6	1,809.2
Total current liabilities	1,516.2	1,863.1
Long-term debt, less current portion	6,282.4	5,965.6
Deferred income taxes	101.1	89.1
Asset retirement obligations	738.4	722.3
Accrued postretirement benefit costs	782.1	781.9
Other noncurrent liabilities	932.8	1,042.6
Total liabilities	10,353.0	10,464.6
Stockholders' equity
Additional paid-in capital	2,406.6	2,386.0
Treasury stock, at cost — 0.8 shares as of September 30, 2015 and 0.9 shares as of December 31, 2014	(371.6)	(467.1)
(Accumulated deficit) retained earnings	(34.0)	1,570.5
Accumulated other comprehensive loss	(695.8)	(764.8)
Peabody Energy Corporation stockholders' equity	1,305.4	2,724.8
Noncontrolling interests	5.0	1.7
Total stockholders' equity	1,310.4	2,726.5
Total liabilities and stockholders' equity	11,663.4	13,191.1
Preferred Stock [Member]
Stockholders' equity
Preferred Stock	0.0	0.0
Perpetual Preferred Stock [Member]
Stockholders' equity
Preferred Stock	0.0	0.0
Series Common Stock [Member]
Stockholders' equity
Common Stock	0.0	0.0
Common Stock [Member]
Stockholders' equity
Common Stock	$ 0.2	$ 0.2