Cash Collateral, Percentage of the aggregate amount of letters of credit outstanding

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- Definition

Debt Instrument, Transaction Support Agreement, Additional Collateral Demands

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- Definition

Debt Instrument, Transaction Support Agreements, Additional Collateral Term, Free Cash Flow In Any Twelve-Month Period

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No definition available.

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- Definition

Debt Instrument, Transaction Support Agreements, Additional Collateral Term, Sale Of Assets Benchmark

+ References

No definition available.

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- Definition

Debt Instrument, Transaction Support Agreements, Additional Collateral To Be Posted Per Year Through 2025

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No definition available.

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- Definition

Debt Instrument, Transaction Support Agreements, Fair Value Of Second Liens On Mining Equipment

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No definition available.

+ Details

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- Definition

Debt Instrument, Transaction Support Agreements, One-Time Additional Collateral To Be Posted

+ References

No definition available.

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- Definition

Deposit Rate, Percentage, Cash Collateral Posted

+ References

No definition available.

+ Details

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- Definition

Financial Instrument, Surety Bonds Amount

+ References

No definition available.

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Balance Type:	credit
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- Definition

Letters of Credit Outstanding for Reclamation

+ References

No definition available.

+ Details

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- Definition

Surety Bonds Outstanding For Reclamation

+ References

No definition available.

+ Details

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- Definition

The amount owed to the reporting entity by counterparties in securitized loan transactions.

+ References

No definition available.

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- Definition

The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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- Definition

Carrying amount as of the balance sheet date of cash collateral held for borrowed securities, for which the cash is restricted as to withdrawal or usage.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- 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

No definition available.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Financial Instruments and Other Guarantees (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Apr. 01, 2022	Jan. 31, 2022	Nov. 06, 2020	Apr. 03, 2017
Guarantee Obligations [Line Items]
Letters of credit outstanding, amount	$ 469.1
Surety bonds amount	1,484.9
Asset retirement obligations	724.5
Net interest expense	39.4	$ 52.4
Surety Bonds Outstanding For Reclamation	1,312.1
Letters of Credit Outstanding for Reclamation	340.0
Surety Bond
Guarantee Obligations [Line Items]
Transaction support agreements, additional collateral to be posted					$ 75.0
Transaction support agreements, additional collateral to be posted per year through 2025				$ 13.0	25.0
Debt instrument, transaction support agreements, fair value of second liens on mining equipment					200.0
Transaction support agreements, additional collateral term, free cash flow in any twelve-month period					100.0
Transaction support agreements, additional collateral term, sale of assets benchmark (in excess of)					$ 10.0
Accounts Receivable Securitization Program, April 1, 2022
Guarantee Obligations [Line Items]
Line of credit facility, maximum borrowing capacity						$ 250.0
Accounts Receivable Securitization Program, April 1, 2022 \| Forecast
Guarantee Obligations [Line Items]
Line of credit facility, maximum borrowing capacity			$ 175.0
Accounts Receivable Securitization Program, April 1, 2022 \| Secured debt
Guarantee Obligations [Line Items]
Outstanding borrowings	0.0
Net interest expense	0.9	$ 0.7
Accounts Receivable from Securitization	1.6
Cash Collateral for Borrowed Securities	24.7
Secured debt \| Accounts Receivable Securitization Program, April 1, 2022
Guarantee Obligations [Line Items]
Letters of credit outstanding, amount	$ 161.8
Secured debt \| Accounts Receivable Securitization Program, April 1, 2022 \| London Interbank Offered Rate (LIBOR) Swap Rate
Guarantee Obligations [Line Items]
Basis spread on variable rate	2.10%
Letter of Credit
Guarantee Obligations [Line Items]
Line of credit facility, maximum borrowing capacity	$ 250.0
Cash Collateral, Percentage of the aggregate amount of letters of credit outstanding	103.00%
Stated interest rate	0.75%
Deposit Rate, Percentage, Cash Collateral Posted	0.0035
Letter of Credit \| Maximum
Guarantee Obligations [Line Items]
Transaction support agreements, additional collateral demands	$ 5.0