CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 988.5	$ 1,307.3
Accounts receivable, net of allowance for credit losses of $0.0 at September 30, 2023 and December 31, 2022	348.4	465.5
Inventories, net	352.0	296.1
Other current assets	244.1	303.6
Total current assets	1,933.0	2,372.5
Property, plant, equipment and mine development, net	2,805.5	2,865.0
Operating lease right-of-use assets	36.0	26.9
Restricted cash and collateral	866.1	187.4
Investments and other assets	79.1	84.3
Deferred income taxes	2.5	74.7
Total assets	5,722.2	5,610.8
Current liabilities
Current portion of long-term debt	12.7	13.2
Accounts payable and accrued expenses	826.8	905.5
Total current liabilities	839.5	918.7
Long-term debt, less current portion	320.9	320.6
Deferred income taxes	20.0	20.4
Asset retirement obligations	669.7	665.8
Accrued postretirement benefit costs	150.6	156.5
Operating lease liabilities, less current portion	21.6	11.0
Other noncurrent liabilities	187.4	223.0
Total liabilities	2,209.7	2,316.0
Stockholders’ equity
Preferred Stock — $0.01 per share par value; 100.0 shares authorized, no shares issued or outstanding as of September 30, 2023 and December 31, 2022	0.0	0.0
Series Common Stock — $0.01 per share par value; 50.0 shares authorized, no shares issued or outstanding as of September 30, 2023 and December 31, 2022	0.0	0.0
Common Stock — $0.01 per share par value; 450.0 shares authorized, 188.6 shares issued and 132.2 shares outstanding as of September 30, 2023 and 187.1 shares issued and 143.9 shares outstanding as of December 31, 2022	1.9	1.9
Additional paid-in capital	3,981.2	3,975.9
Treasury stock, at cost — 56.4 and 43.2 common shares as of September 30, 2023 and December 31, 2022	(1,655.7)	(1,372.9)
Retained earnings	930.6	383.9
Accumulated other comprehensive income	200.6	242.5
Peabody Energy Corporation stockholders’ equity	3,458.6	3,231.3
Noncontrolling interests	53.9	63.5
Total stockholders’ equity	3,512.5	3,294.8
Total liabilities and stockholders’ equity	$ 5,722.2	$ 5,610.8
Treasury stock, shares (in shares)	56,400,000	43,200,000
Preferred Stock
Stockholders’ equity
Preferred stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000,000.0	100,000,000.0
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Series Common Stock
Stockholders’ equity
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	50,000,000.0	50,000,000.0
Common stock, shares issued (in shares)	0	0
Common stock, shares outstanding (in shares)	0	0
Common Stock
Stockholders’ equity
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	450,000,000.0	450,000,000.0
Common stock, shares issued (in shares)	188,600,000	187,100,000
Common stock, shares outstanding (in shares)	132,200,000	143,900,000