Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 745.6	$ 261.3
Restricted Cash	84.9	0.0
Accounts receivable, net of allowance for doubtful accounts of $12.0 at March 31, 2016 and $6.6 at December 31, 2015	263.7	228.8
Inventories	315.8	307.8
Assets from coal trading activities, net	21.2	23.5
Deferred income taxes	53.5	53.5
Other current assets	467.4	447.6
Total current assets	1,952.1	1,322.5
Property, plant, equipment and mine development, net	9,162.8	9,258.5
Deferred income taxes	2.3	2.2
Investments and other assets	377.8	363.7
Total assets	11,495.0	10,946.9
Current liabilities
Current portion of long-term debt	6,820.2	5,874.9
Liabilities from coal trading activities, net	19.3	15.6
Accounts payable and accrued expenses	1,284.9	1,446.3
Total current liabilities	8,124.4	7,336.8
Long-term debt, less current portion	367.0	366.3
Deferred income taxes	51.1	69.1
Asset retirement obligations	698.0	686.6
Accrued postretirement benefit costs	720.5	722.9
Other noncurrent liabilities	722.7	846.7
Total liabilities	10,683.7	10,028.4
Stockholders' equity
Additional paid-in capital	2,412.7	2,410.7
Treasury stock, at cost — 0.8 shares as of March 31, 2016 and December 31, 2015	(371.8)	(371.7)
Accumulated deficit	(668.5)	(503.4)
Accumulated other comprehensive loss	(562.9)	(618.9)
Peabody Energy Corporation stockholders' equity	809.7	916.9
Noncontrolling interests	1.6	1.6
Total stockholders' equity	811.3	918.5
Total liabilities and stockholders' equity	11,495.0	10,946.9
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