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Debt (Tables) | 9 Months Ended
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Sep. 30, 2025
Debt Disclosure [Abstract] |
Schedule of Debt Maturing Within One Year | Debt maturing within one year:
(in Millions) | September 30, 2025 |  | December 31, 2024
Short-term foreign debt (1) | $ | 201.5 |  |  | $ | 135.7 |
Commercial paper (2) | 981.8 |  |  | 125.6 |
Total short-term debt | $ | 1,183.3 |  |  | $ | 261.3 |
Current portion of long-term debt | 88.4 |  |  | 76.1 |
Total short-term debt and current portion of long-term debt (3) | $ | 1,271.7 |  |  | $ | 337.4 |
____________________ (1)At September 30, 2025, the average effective interest rate on the borrowings was 8.9 percent. (2)At September 30, 2025, the average effective interest rate on the borrowings was 5.0 percent. (3)Based on cash generated from operations, our existing liquidity facilities, which includes the revolving credit agreement with the option to increase capacity up to $2.75 billion, and our continued access to debt capital markets, we have adequate liquidity to meet any of the company's debt obligations in the near term including any current portion of long-term debt.
Schedule of Long-Term Debt | Long-term debt:
(in Millions) | September 30, 2025 |  |  |  |
Interest Rate Percentage |  | Maturity Date |  | September 30, 2025 |  | December 31, 2024
Pollution control and industrial revenue bonds (less unamortized discounts of $0.1 and $0.1, respectively) | 6.45% |  | 2032 |  | $ | 49.9 |  |  | $ | 49.9 |
Senior notes (less unamortized discount of $1.4 and $1.6, respectively) | 3.2% - 6.4% |  | 2026 - 2053 |  | 2,498.6 |  |  | 2,998.4 |
Subordinated Notes | 8.45% |  | 2055 |  | 750.0 |  |  | — |
Revolving Credit Facility (1) | 6.8% |  | 2028 |  | — |  |  | — |
Foreign debt | 12.6% - 17.1% |  | 2025 - 2026 |  | 88.4 |  |  | 76.1 |
Debt issuance cost |  |  |  |  | (28.0) |  |  | (20.4) |
Total long-term debt |  |  |  |  | $ | 3,358.9 |  |  | $ | 3,104.0 |
Less: debt maturing within one year |  |  |  |  | 88.4 |  |  | 76.1 |
Total long-term debt, less current portion |  |  |  |  | $ | 3,270.5 |  |  | $ | 3,027.9 |
____________________ (1)Letters of credit outstanding under our Revolving Credit Facility totaled $209.8 million and available funds under this facility were $808.4 million at September 30, 2025.

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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 235 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477314/942-235-S99-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-4 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69B -Publisher FASB -URI https://asc.fasb.org/1943274/2147481568/470-20-55-69B Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 69E -Publisher FASB -URI https://asc.fasb.org/1943274/2147481568/470-20-55-69E Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482925/835-30-45-2 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477734/942-470-50-3 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-8 Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-6 Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-7 + Details
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- Definition Tabular disclosure of short-term debt arrangements (having initial terms of repayment within one year or the normal operating cycle, if longer) including: (1) description of the short-term debt arrangement; (2) identification of the lender or type of lender; (3) repayment terms; (4) weighted average interest rate; (5) carrying amount of funds borrowed under the specified short-term debt arrangement as of the balance sheet date; (6) description of the refinancing of a short-term obligation when that obligation is excluded from current liabilities in the balance sheet; and (7) amount of a short-term obligation that has been excluded from current liabilities in the balance sheet because of a refinancing of the obligation. + References Reference 1: 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)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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