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Consolidated Balance Sheets - USD ($) shares in Millions, $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Current liabilities |  |
Liabilities subject to compromise |  | $ 8,440.2
Predecessor |  |
Allowance for Doubtful Accounts Receivable, Current |  | 13.1
Current assets |  |
Cash and cash equivalents |  | 872.3
Restricted Cash and Investments, Current |  | 54.3
Accounts receivable, net of allowance for doubtful accounts of $13.1 at December 31, 2016 and $6.6 at December 31, 2015 |  | 473.0
Inventories |  | 203.7
Assets from coal trading activities, net |  | 0.7
Other current assets |  | 486.6
Total current assets |  | 2,090.6
Property, plant, equipment and mine development, net |  | 8,776.7
Restricted cash collateral |  | 529.3
Investments and other assets |  | 381.1
Deferred income taxes |  | 0.0
Total assets |  | 11,777.7
Current liabilities |  |
Current portion of long-term debt |  | 20.2
Liabilities from coal trading activities, net |  | 1.2
Accounts payable and accrued expenses |  | 990.4
Total current liabilities |  | 1,011.8
Long-term debt, less current portion |  | 0.0
Deferred income taxes |  | 173.9
Asset retirement obligations, noncurrent |  | 717.8
Accrued postretirement benefit costs |  | 756.3
Other noncurrent liabilities |  | 496.2
Total liabilities |  | 11,596.2
Total liabilities not subject to compromise |  | 3,156.0
Liabilities subject to compromise |  | 8,440.2
Stockholders' equity |  |
Additional paid-in capital |  | 2,422.0
Treasury stock, at cost - 0.8 shares as of December 31, 2016 and December 31, 2015 |  | (371.8)
(Accumulated deficit) retained earnings |  | (1,399.5)
Accumulated other comprehensive loss | $ 0.0 | (477.0)
Peabody Energy Corporation's stockholders' equity |  | 173.9
Noncontrolling interests |  | 7.6
Total stockholders' equity |  | 181.5
Total liabilities and stockholders' equity |  | $ 11,777.7
Predecessor | Preferred Stock |  |
Preferred Stock, shares authorized |  | 10.0
Stockholders' equity |  |
Preferred stock |  | $ 0.0
Preferred Stock, Shares Issued |  | 0.0
Preferred Stock, shares outstanding |  | 0.0
Preferred Stock, Par or Stated Value Per Share |  | $ 0.01
Predecessor | Perpetual Preferred Stock [Member] |  |
Preferred Stock, shares authorized |  | 0.8
Stockholders' equity |  |
Preferred stock |  | $ 0.0
Preferred Stock, Shares Issued |  | 0.0
Preferred Stock, shares outstanding |  | 0.0
Predecessor | Series Common Stock [Member] |  |
Stockholders' equity |  |
Common Stock |  | $ 0.0
Common stock, par value per share (in dollars per share) |  | $ 0.01
Common Stock, Shares Authorized |  | 40.0
Common stock, shares issued (in shares) |  | 0.0
Common stock, shares outstanding (in shares) |  | 0.0
Predecessor | Common Stock |  |
Stockholders' equity |  |
Common Stock |  | $ 0.2
Common stock, par value per share (in dollars per share) |  | $ 0.01
Common Stock, Shares Authorized |  | 53.3
Common stock, shares issued (in shares) |  | 19.3
Common stock, shares outstanding (in shares) |  | 18.5
Successor |  |
Allowance for Doubtful Accounts Receivable, Current | 4.6 |
Current assets |  |
Cash and cash equivalents | 1,012.1 |
Restricted Cash and Investments, Current | 40.1 |
Accounts receivable, net of allowance for doubtful accounts of $13.1 at December 31, 2016 and $6.6 at December 31, 2015 | 552.1 |
Inventories | 291.3 |
Assets from coal trading activities, net | 2.6 |
Other current assets | 291.8 |
Total current assets | 2,190.0 |
Property, plant, equipment and mine development, net | 5,111.9 |
Restricted cash collateral | 323.1 |
Investments and other assets | 470.6 |
Deferred income taxes | 85.6 |
Total assets | 8,181.2 |
Current liabilities |  |
Current portion of long-term debt | 42.1 |
Liabilities from coal trading activities, net | 11.7 |
Accounts payable and accrued expenses | 1,191.1 |
Total current liabilities | 1,244.9 |
Long-term debt, less current portion | 1,418.7 |
Deferred income taxes | 5.4 |
Asset retirement obligations, noncurrent | 657.0 |
Accrued postretirement benefit costs | 730.0 |
Other noncurrent liabilities | 469.4 |
Total liabilities | 4,525.4 |
Total liabilities not subject to compromise | 4,525.4 |
Liabilities subject to compromise | 0.0 |
Stockholders' equity |  |
Additional paid-in capital | 2,590.3 |
Treasury stock, at cost - 0.8 shares as of December 31, 2016 and December 31, 2015 | (175.9) |
(Accumulated deficit) retained earnings | 613.6 |
Accumulated other comprehensive loss | 1.4 |
Peabody Energy Corporation's stockholders' equity | 3,606.4 |
Noncontrolling interests | 49.4 |
Total stockholders' equity | 3,655.8 |
Total liabilities and stockholders' equity | $ 8,181.2 |
Preferred Stock, shares outstanding | 13.5 |
Common stock, shares outstanding (in shares) | 105.2 |
Successor | Preferred Stock |  |
Preferred Stock, shares authorized | 50.0 |
Stockholders' equity |  |
Preferred stock | $ 0.0 |
Preferred Stock, Shares Issued | 0.0 |
Preferred Stock, shares outstanding | 0.0 |
Preferred Stock, Par or Stated Value Per Share | $ 0.01 |
Successor | Series Common Stock [Member] |  |
Stockholders' equity |  |
Common Stock | $ 0.0 |
Common stock, par value per share (in dollars per share) | $ 0.01 |
Common Stock, Shares Authorized | 50.0 |
Common stock, shares issued (in shares) | 0.0 |
Common stock, shares outstanding (in shares) | 0.0 |
Successor | Common Stock |  |
Stockholders' equity |  |
Common Stock | $ 1.0 |
Common stock, par value per share (in dollars per share) | $ 0.01 |
Common Stock, Shares Authorized | 450.0 |
Common stock, shares issued (in shares) | 111.8 |
Common stock, shares outstanding (in shares) | 105.2 |
Successor | Convertible Preferred Stock [Member] |  |
Preferred Stock, shares authorized | 50.0 |
Stockholders' equity |  |
Preferred stock | $ 576.0 |
Preferred Stock, Shares Issued | 30.0 |
Preferred Stock, shares outstanding | 13.5 |
Preferred Stock, Par or Stated Value Per Share | $ 0.01 |

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