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Long-Term Debt and Credit Agreements - Narrative (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 31, 2025 | Sep. 30, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, interest rate during period |  |  | 5.60% |  |
Total debt |  | $ 3,900,000,000 | $ 3,900,000,000 |  | $ 3,500,000,000
Proceeds from issuance of debt |  |  | 1,446,000,000 | $ 499,000,000 |
Repayment of long-term debt |  |  | $ 1,046,000,000 | $ 575,000,000 |
Debt weighted average interest rate |  | 5.80% | 5.80% |  |
Revolving Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Borrowed and repaid |  |  | $ 446,000,000 |  |
Debt instrument, interest rate during period |  | 7.70% | 7.70% |  | 0.00%
Line of Credit | Revolving Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Total debt |  | $ 0 | $ 0 |  |
Remaining borrowing capacity |  | $ 2,000,000,000 | $ 2,000,000,000 |  |
3.77% senior notes due September 18, 2026 | Senior Notes |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Weighted average interest rate |  | 3.77% | 3.77% |  |
Total debt |  | $ 250,000,000 | $ 250,000,000 |  | $ 250,000,000
Tranche A | Line of Credit | Secured Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Issuance of term loan for FME and Avant acquisitions |  |  |  |  | 500,000,000
Proceeds from issuance of debt | $ 500,000,000 |  |  |  |
Repayment of long-term debt |  |  | 500,000,000 |  |
Tranche B | Line of Credit | Secured Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Issuance of term loan for FME and Avant acquisitions |  |  |  |  | $ 500,000,000
Proceeds from issuance of debt | $ 500,000,000 |  |  |  |
Repayment of long-term debt |  |  | $ 100,000,000 |  |

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