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v3.25.1

Long-term Debt (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Dec. 31, 2024
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | $ 2,921.4 | $ 2,920.6
Long-term Debt, Fair Value | 2,727.5 | 2,702.0
Long-term Debt, Current Maturities | 0.1 | 0.1
Long-term Debt, Excluding Current Maturities | 2,921.3 | 2,920.5
4.650% Notes Due 2028 (less unamortized discount and issuance costs of $1.0 and $2.3, respectively) |  |
Debt Instrument [Line Items] |  |
Par Value | $ 500.0 |
Maturity Date | Oct. 01, 2028 |
Interest Rate Stated Percentage | 4.65% |
Effective Interest Rate | 4.78% |
Unamortized Discount | $ 0.6 |
Issuance Cost | 1.6 |
Long-term Debt, Gross | 497.8 | 497.6
4.750% Notes Due 2030 (less unamortized discount and issuance costs of $2.8 and $4.1, respectively) |  |
Debt Instrument [Line Items] |  |
Par Value | $ 650.0 |
Maturity Date | Mar. 30, 2030 |
Interest Rate Stated Percentage | 4.75% |
Effective Interest Rate | 4.92% |
Unamortized Discount | $ 2.1 |
Issuance Cost | 3.1 |
Long-term Debt, Gross | 644.8 | 644.6
2.400% Notes Due 2031 (less unamortized discount and issuance costs of $0.6 and $3.6, respectively) |  |
Debt Instrument [Line Items] |  |
Par Value | $ 500.0 |
Maturity Date | Mar. 01, 2031 |
Effective Interest Rate | 2.512% |
Unamortized Discount | $ 0.5 |
Issuance Cost | 2.8 |
Long-term Debt, Gross | 496.7 | 496.6
5.375% Notes Due 2033 (less unamortized discount and issuance costs of $3.7 and $3.3, respectively) |  |
Debt Instrument [Line Items] |  |
Par Value | $ 300.0 |
Maturity Date | Jun. 15, 2033 |
Interest Rate Stated Percentage | 5.375% |
Effective Interest Rate | 5.65% |
Unamortized Discount | $ 3.2 |
Issuance Cost | 2.6 |
Long-term Debt, Gross | $ 294.2 | 294.0
3.375% Notes Due 2041 (less unamortized discount and issuance costs of $1.0 and $5.1, respectively) |  |
Debt Instrument [Line Items] |  |
Maturity Date | Mar. 01, 2041 |
Effective Interest Rate | 3.448% |
Unamortized Discount | $ 0.9 |
Issuance Cost | 4.6 |
Long-term Debt, Gross | 494.5 | 494.4
5.400% Notes Due 2048 (less unamortized discount and issuance costs of $2.6 and $4.7, respectively) |  |
Debt Instrument [Line Items] |  |
Par Value | $ 500.0 |
Maturity Date | Oct. 01, 2048 |
Interest Rate Stated Percentage | 5.40% |
Effective Interest Rate | 5.48% |
Unamortized Discount | $ 2.5 |
Issuance Cost | 4.4 |
Long-term Debt, Gross | 493.1 | 493.1
Other notes payable and capitalized leases |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | $ 0.3 | $ 0.3
Unsecured Debt 2.400% Note [Member] |  |
Debt Instrument [Line Items] |  |
Interest Rate Stated Percentage | 2.40% |
Unsecured Debt 3.375% Note |  |
Debt Instrument [Line Items] |  |
Par Value | $ 500.0 |
Interest Rate Stated Percentage | 3.375% |

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