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v3.22.4

Income Taxes Deferred Tax (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Deferred Tax Liabilities, Gross [Abstract] |  |  |  |
Depreciation and amortization | $ 430.5 | $ 456.2 |  |
Depletion | 613.5 | 430.1 |  |
Partnership tax basis differences | 59.3 | 66.3 |  |
Other liabilities | 37.6 | 39.1 |  |
Total deferred tax liabilities | 1,140.9 | 991.7 |  |
Deferred Tax Assets, Gross [Abstract] |  |  |  |
Capital loss carryforwards | 3.6 | 0.0 |  |
Foreign tax credit carryforwards | 736.7 | 775.1 |  |
Net operating loss carryforwards | 255.8 | 232.3 |  |
Pension plans and other benefits | 14.3 | 19.8 |  |
Asset retirement obligations | 369.4 | 337.3 |  |
Disallowed interest expense under 163(j) | 0.0 | 31.6 |  |
Other assets | 413.2 | 351.2 |  |
Subtotal | 1,793.0 | 1,747.3 |  |
Net of valuation allowance |  |  |  |
Valuation allowance | 909.9 | 774.7 | $ 683.0 | $ 1,457.1
Deferred Tax Assets, Net of Valuation Allowance | 883.1 | 972.6 |  |
Deferred Tax Assets, Net |  | 19.1 |  |
Deferred Tax Liabilities, Net, Total | 257.8 |  |  |
Anticipatory Foreign Tax Credit Carryforward |  |  |  |
Net of valuation allowance |  |  |  |
Valuation allowance | 202.2 | 229.6 |  |
Deferred Tax Liabilities and Assets [Line Items] |  |  |  |
Deferred Tax Assets Foreign Tax Credits Netted Against Related Deferred Tax Liabilities | $ 202.2 | $ 185.1 |  |

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