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Discontinued Operations | 12 Months Ended
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Dec. 31, 2021
Discontinued Operations and Disposal Groups [Abstract] |
Discontinued Operations | Discontinued Operations Discontinued operations include certain former Seaborne Thermal Mining and Other U.S. Thermal Mining segment assets that have ceased production and other previously divested legacy operations, including Patriot Coal Corporation and certain of its wholly-owned subsidiaries (Patriot). In the third quarter of 2021, the Company executed the sale of the closed Wilkie Creek Mine, which reduced its closed mine reclamation liabilities and associated costs. Refer to Note 19. “Other Events” for additional information associated with the Company’s sale of the Wilkie Creek Mine. Summarized Results of Discontinued Operations Results from discontinued operations were as follows during the years ended December 31, 2021, 2020 and 2019:
| Year Ended December 31,
| 2021 |  | 2020 |  | 2019
| (Dollars in millions)
Income (loss) from discontinued operations, net of income taxes | $ | 24.0 |  |  | $ | (14.0) |  |  | $ | 3.2 |
There were no significant revenues from discontinued operations during the years ended December 31, 2021, 2020 and 2019. Liabilities of Discontinued Operations Liabilities classified as discontinued operations included in the Company’s consolidated balance sheets were as follows:
| December 31,
| 2021 |  | 2020
| (Dollars in millions)
Liabilities: |  |  |
Accounts payable and accrued expenses | $ | 45.0 |  |  | $ | 62.3 |
Other noncurrent liabilities | 59.0 |  |  | 91.4 |
Total liabilities classified as discontinued operations | $ | 104.0 |  |  | $ | 153.7 |
Patriot-Related Matters A significant portion of the liabilities in the table above relate to Patriot. In 2012, Patriot filed voluntary petitions for relief under Chapter 11 of Title 11 of the U.S. Code (the Bankruptcy Code). In 2013, the Company entered into a definitive settlement agreement (2013 Agreement) with Patriot and the United Mine Workers of America (UMWA), on behalf of itself, its represented Patriot employees and its represented Patriot retirees, to resolve all then-disputed issues related to Patriot’s bankruptcy. In May 2015, Patriot again filed voluntary petitions for relief under the Bankruptcy Code in the U.S. District Court for the Eastern District of Virginia and subsequently initiated a process to sell substantially all of its assets to qualified bidders. On October 9, 2015, Patriot’s bankruptcy court entered an order confirming Patriot’s plan of reorganization, which provided, among other things, for the sale of substantially all of Patriot’s assets to two different buyers. Black Lung Occupational Disease Liabilities. Patriot had federal and state black lung occupational disease liabilities related to workers employed in periods prior to Patriot’s spin-off from the Company in 2007. Upon spin-off, Patriot indemnified the Company against any claim relating to these liabilities, which amounted to approximately $150 million at that time. The indemnification included any claim made by the U.S. Department of Labor (DOL) against the Company with respect to these obligations as a potentially liable operator under the Federal Coal Mine Health and Safety Act of 1969. The 2013 Agreement included Patriot’s affirmance of indemnities provided in the spin-off agreements, including the indemnity relating to such black lung liabilities; however, Patriot rejected this indemnity in its May 2015 bankruptcy. By statute, the Company had secondary liability for the black lung liabilities related to Patriot’s workers employed by former subsidiaries of the Company. The Company’s accounting for the black lung liabilities related to Patriot is based on an interpretation of applicable statutes. Management believes that inconsistencies exist among the applicable statutes, regulations promulgated under those statutes and the DOL’s interpretative guidance. The Company has sought clarification from the DOL regarding these inconsistencies. The amount of these liabilities could be reduced in the future. Whether the Company will ultimately be required to fund certain of those obligations in the future as a result of Patriot’s May 2015 bankruptcy remains uncertain. The amount of the liability, which was determined on an actuarial basis based on the best information available to the Company was $87.2 million and $90.1 million at December 31, 2021 and 2020, respectively. In connection with the actuarial valuation, the Company recorded mark-to-market adjustments of $2.1 million to decrease the liability during the year ended December 31, 2021, $4.2 million to increase the liability during the year ended December 31, 2020 and $18.3 million to decrease the liability during the year ended December 31, 2019. While the Company has recorded a liability, it intends to review each claim on a case-by-case basis and contest liability estimates as appropriate. The amount of the Company’s recorded liability reflects only Patriot workers employed by former subsidiaries of the Company that are presently retired, disabled or otherwise not actively employed. The Company cannot reliably estimate the potential liabilities for Patriot’s workers employed by former subsidiaries of the Company that are presently active in the workforce because of the potential for such workers to continue to work for another coal operator that is a going concern.

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- Definition The entire disclosure related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2122178 + Details
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