XML 70 R57.htm IDEA: XBRL DOCUMENT
v3.25.2

Financial Instruments and Other Guarantees (Details) $ in Millions, $ in Millions | Jun. 30, 2025 USD ($) | Jun. 30, 2025 AUD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2024 AUD ($)
--- | --- | --- | --- | ---
Guarantee Obligations [Line Items] |  |  |  |
Restricted Cash | $ 714.2 |  | $ 682.2 |
Restricted cash and collateral | 847.1 |  | 809.8 |
Surety Trust Account |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Restricted Cash | 392.7 |  | 394.6 |
Deposits with Regulatory Authorities |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Deposits Assets | 132.9 | $ 203.0 | 127.6 | $ 205.0
Cash backed bank guarantees |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Restricted Cash |  | $ 309.0 |  | $ 271.0
Collateralized letters of credit funding |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Restricted Cash | 321.5 |  | $ 287.6 |
Asset Retirement Obligations |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Surety bonds amount | 925.8 |  |  |
Letters of credit outstanding, amount | 55.2 |  |  |
Surety Bonds and Letters of Credit Outstanding for Reclamation Support | 981.0 |  |  |
Less: Letters of Credit in Support of Surety Bonds | 55.2 |  |  |
Total Obligations Supported, Net | 925.8 |  |  |
Asset Retirement and Other Obligations |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Surety bonds amount | 1,014.0 |  |  |
Letters of credit outstanding, amount | 107.9 |  |  |
Total Surety Bonds and Letters of Credit Outstanding | 1,121.9 |  |  |
Total Letters of Credit in Support of Surety Bonds | (55.3) |  |  |
Total Obligations Supported, Net | 1,066.6 |  |  |
Other Obligations |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Surety bonds amount | 88.2 |  |  |
Letters of credit outstanding, amount | 52.7 |  |  |
Surety Bonds and Letters of Credit Outstanding for Other Support | 140.9 |  |  |
Less: Letters of Credit in Support of Surety Bonds | 0.1 |  |  |
Total Obligations Supported, Net | 140.8 |  |  |
Secured debt | Accounts Receivable Securitization Program |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Letters of credit outstanding, amount | 58.6 |  |  |
Letter of Credit |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Letters of credit outstanding, amount | 49.3 |  |  |
Collateralized Letter of Credit Agreement |  |  |  |
Guarantee Obligations [Line Items] |  |  |  |
Letters of credit outstanding, amount | $ 115.6 |  |  |

X
- Definition Financial Instrument, Surety Bonds Amount + References No definition available. + Details
Name: | btu_FinancialInstrumentSuretyBondsAmount
Namespace Prefix: | btu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Letters of Credit in Support of Surety Bonds + References No definition available. + Details
Name: | btu_LettersOfCreditInSupportOfSuretyBonds
Namespace Prefix: | btu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition restricted cash and collateral + References No definition available. + Details
Name: | btu_RestrictedCashAndCollateral
Namespace Prefix: | btu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Surety Bonds and Letters of Credit Outstanding for Other Support + References No definition available. + Details
Name: | btu_SuretyBondsAndLettersOfCreditOutstandingForOtherSupport
Namespace Prefix: | btu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Surety Bonds and Letters of Credit Outstanding for Reclamation Support + References No definition available. + Details
Name: | btu_SuretyBondsAndLettersOfCreditOutstandingForReclamationSupport
Namespace Prefix: | btu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total Letters of Credit in Support of Surety Bonds + References No definition available. + Details
Name: | btu_TotalLettersOfCreditInSupportOfSuretyBonds
Namespace Prefix: | btu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total Obligations Supported, Net + References No definition available. + Details
Name: | btu_TotalObligationsSupportedNet
Namespace Prefix: | btu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total Surety Bonds and Letters of Credit Outstanding + References No definition available. + Details
Name: | btu_TotalSuretyBondsAndLettersOfCreditOutstanding
Namespace Prefix: | btu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment in the future. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_DepositsAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 + Details
Name: | us-gaap_GuaranteeObligationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 605 -Name Accounting Standards Codification -Section 55 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477548/944-605-55-15 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 605 -Name Accounting Standards Codification -Section 55 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477548/944-605-55-12 + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-8 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
Name: | us-gaap_RestrictedCash
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=btu_SuretyTrustAccountMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=btu_DepositsWithRegulatoryAuthoritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=btu_CashBackedBankGuaranteesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAssetAxis=btu_CollateralizedLettersOfCreditFundingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=btu_AssetRetirementObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=btu_AssetRetirementAndOtherObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryLiabilityAxis=btu_OtherObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_SecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=btu_AccountsReceivableSecuritizationProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=btu_CollateralizedLetterOfCreditAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |