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Commitment and Contingencies - Asset Retirement Obligations (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2022 USD ($)
Commitments and Contingencies Disclosure [Abstract] |
Increase in ARO liability and asset retirement cost asset | $ 45
Frequency of closure costs updates | 6 years
Frequency of financial assurance mechanism updates | 2 years

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- Definition Mine Reclamation and Closing Liability, Facilities Covered by Aquifier Protection Permits, Frequency of Closure Costs Updates + References No definition available. + Details
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- Definition Mine Reclamation and Closing Liability, Facilities Covered by Aquifier Protection Permits, Frequency of Financial Assurance Mechanism Updates + References No definition available. + Details
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- Definition Amount of increase (decrease) in asset retirement obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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- References No definition available. + Details
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