Condensed Consolidated Balance Sheets - Successor - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 1,451.7	$ 1,012.1
Restricted cash	0.0	40.1
Accounts receivable, net of allowance for doubtful accounts of $4.8 at June 30, 2018 and $4.6 at December 31, 2017	503.0	552.1
Inventories	290.5	291.3
Other current assets	223.2	294.4
Total current assets	2,468.4	2,190.0
Property, plant, equipment and mine development, net	4,945.7	5,111.9
Collateral arrangements	0.0	323.1
Investments and other assets	296.1	470.6
Deferred tax assets, noncurrent	85.5	85.6
Total assets	7,795.7	8,181.2
Current liabilities
Current portion of long-term debt	45.0	42.1
Accounts payable and accrued expenses	1,038.9	1,202.8
Total current liabilities	1,083.9	1,244.9
Long-term debt, less current portion	1,358.0	1,418.7
Deferred income taxes	5.1	5.4
Asset retirement obligations	672.6	657.0
Accrued postretirement benefit costs	726.8	730.0
Other noncurrent liabilities	404.0	469.4
Total liabilities	4,250.4	4,525.4
Stockholders’ equity
Peabody Energy Corporation stockholders’ equity	3,501.9	3,606.4
Noncontrolling interests	43.4	49.4
Total stockholders’ equity	3,545.3	3,655.8
Total liabilities and stockholders’ equity	7,795.7	8,181.2
Preferred Stock
Stockholders’ equity
Total stockholders’ equity	0.0	576.0
Common Stock
Stockholders’ equity
Total stockholders’ equity	1.4	1.0
Additional Paid-in Capital
Stockholders’ equity
Additional paid-in capital	3,285.7	2,590.3
Total stockholders’ equity	3,285.7	2,590.3
Treasury Stock
Stockholders’ equity
Treasury stock, at cost	(564.9)	(175.9)
Total stockholders’ equity	(564.9)	(175.9)
Retained earnings
Stockholders’ equity
Retained earnings	781.3	613.6
Total stockholders’ equity	781.3	613.6
Accumulated Other Comprehensive Income (Loss)
Stockholders’ equity
Accumulated other comprehensive (loss) income	(1.6)	1.4
Total stockholders’ equity	(1.6)	1.4
Convertible Preferred Stock
Stockholders’ equity
Preferred stock	0.0	576.0
Preferred Stock
Stockholders’ equity
Preferred stock	0.0	0.0
Series Common Stock
Stockholders’ equity
Common Stock	0.0	0.0
Common Stock | Common Stock
Stockholders’ equity
Common Stock	$ 1.4	$ 1.0