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Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2025
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts | PEABODY ENERGY CORPORATION SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
Description |  | Balance at Beginning of Period |  | Charged to Costs and Expenses |  |  |  | Deductions(1) |  | Other(2) |  | Balance at End of Period
|  | (Dollars in millions)
Year Ended December 31, 2025 |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from asset accounts: |  |  |  |  |  |  |  |  |  |  |  |
Reserve for materials and supplies |  | $ | 3.5 |  |  | $ | 2.9 |  |  |  |  | $ | (1.3) |  |  | $ | — |  |  | $ | 5.1 |
Tax valuation allowances |  | 1,420.9 |  |  | 16.4 |  |  |  |  | — |  |  | 31.9 |  |  | 1,469.2 |
Year Ended December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from asset accounts: |  |  |  |  |  |  |  |  |  |  |  |
Reserve for materials and supplies |  | $ | 7.2 |  |  | $ | 1.7 |  |  |  |  | $ | (5.4) |  |  | $ | — |  |  | $ | 3.5 |
Tax valuation allowances |  | 1,473.5 |  |  | (9.6) |  |  |  |  | — |  |  | (43.0) |  |  | 1,420.9 |
Year Ended December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from asset accounts: |  |  |  |  |  |  |  |  |  |  |  |
Reserve for materials and supplies |  | 9.5 |  |  | 2.6 |  |  |  |  | (4.9) |  |  | — |  |  | 7.2 |
Tax valuation allowances |  | 1,451.0 |  |  | 0.6 |  |  |  |  | — |  |  | 21.9 |  |  | 1,473.5 |
(1)Reserves utilized, unless otherwise indicated. (2)Includes the impact of changes in the Australian dollar exchange rates.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 -Publisher SEC Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-5 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 + Details
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- References No definition available. + Details
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