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Contingencies (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Applicability, Impact and Conclusion of Environmental Loss Contingencies |  |
Environmental contingency accrual | $ 185.5 | $ 57.3
Loss Contingencies [Line Items] |  |
Environmental contingency accrual | $ 185.5 | $ 57.3
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] | Accrued liabilities |
New Wales Phase II East Stack |  |
Loss Contingencies [Line Items] |  |
Estimated loss contingency | $ 73.1 |
Maximum funding of environmental projects | 73.1 |
Brazilian subsidiary judicial and administrative proceedings |  |
Loss Contingencies [Line Items] |  |
Estimated loss contingency | 62.3 |
Maximum funding of environmental projects | 62.3 |
Brazilian subsidiary labor claims |  |
Loss Contingencies [Line Items] |  |
Loss Contingency Accrual | 53.3 |
Maximum | Brazilian subsidiary judicial and administrative proceedings |  |
Loss Contingencies [Line Items] |  |
Estimated loss contingency | 807.7 |
Maximum funding of environmental projects | 807.7 |
Maximum | Brazilian Non Income Tax Proceedings |  |
Loss Contingencies [Line Items] |  |
Estimated loss contingency | 472.5 |
Maximum funding of environmental projects | 472.5 |
Maximum | Brazilian Non Income Tax Proceedings | Indemnification Agreement |  |
Loss Contingencies [Line Items] |  |
Estimated loss contingency | 205.0 |
Maximum funding of environmental projects | 205.0 |
Maximum | Brazilian Non Income Tax Proceedings | PIS And Cofins cases |  |
Loss Contingencies [Line Items] |  |
Estimated loss contingency | 331.4 |
Maximum funding of environmental projects | 331.4 |
Maximum | Brazilian subsidiary labor claims |  |
Loss Contingencies [Line Items] |  |
Estimated loss contingency | 608.5 |
Maximum funding of environmental projects | $ 608.5 |

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