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Long-Term Debt (Amounts Outstanding Related To Commercial Paper Program) (Details) - USD ($) | Dec. 31, 2024 | Dec. 31, 2023
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Debt Disclosure [Abstract] |  |
Total authorized program | $ 1,200,000,000 | $ 1,200,000,000
Commercial paper outstanding (classified as long-term debt) | 368,000,000.0 | 186,000,000.0
Letters of credit issued under the credit agreement | 0 | 0
Amount limited by restrictive covenants of credit facility | 388,800,000 | 682,100,000
Line of credit facility, remaining borrowing capacity | $ 443,200,000 | $ 331,900,000

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- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(a)(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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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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