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Other Commitments And Contingencies (Narrative) (Details) $ in Millions	Mar. 31, 2025 USD ($) Rate	Feb. 03, 2025 USD ($)	Jan. 15, 2025 USD ($)	Dec. 31, 2024 USD ($)
Other Commitments And Contingencies [Line Items]
Guaranty Liabilities	$ 465.4			$ 1,127.5
Recorded reserves to cover environmental remediation at various sites	$ 90.4			91.8
Wind Power Purchase Agreement, Purchase Percentage | Rate	100.00%
Payments to Acquire Assets, Investing Activities	$ 144.1	$ 217.6	$ 336.6
Contractual Obligation	$ 61.7
MGP Sites
Other Commitments And Contingencies [Line Items]
Number of waste disposal sites identified by program	51
Liability for Estimated Remediation Costs	$ 83.8			$ 86.4
Reasonably possible remediation costs variance from reserve	16.3
Standby Letters of Credit
Other Commitments And Contingencies [Line Items]
Long-term Line of Credit	$ 9.4

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Liability for Estimated Remediation Costs

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Number of waste disposal sites identified by program.

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Other Commitments And Contingencies [Line Items]

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Wind Power Purchase Agreement, Purchase Percentage

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- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Amount of contractual obligation, including, but not limited to, long-term debt, lease obligation, purchase obligation, and other commitments.

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This item represents a non-contingent liability for the fair value of an obligation to stand ready to perform over the term of a guaranty issued in the event that specified triggering events or conditions occur.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Aggregate cash payments for a combination of transactions that are classified as investing activities in which assets, which may include securities, other types of investments, or productive assets, are purchased from third-party sellers. This element can be used by entities to aggregate payments for all asset purchases that are classified as investing activities.

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