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Long-term Debt (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2023 | Dec. 31, 2022
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | $ 3,165.7 | $ 2,871.3
Long-term Debt, Fair Value | 2,892.7 | 2,552.3
Long-term Debt, Current Maturities | 250.3 | 0.6
Long-term Debt, Excluding Current Maturities | $ 2,915.4 | 2,870.7
4.200% Notes Due 2024 (less unamortized discount and issuance costs of $0.0 and $0.2, respectively) |  |
Debt Instrument [Line Items] |  |
Effective Interest Rate | 4.24% |
Long-term Debt, Gross |  | 249.7
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 | $ 1.0 |
Issuance Cost | 2.3 |
Long-term Debt, Gross | 496.7 | 496.4
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 | $ 2.8 |
Issuance Cost | 4.1 |
Long-term Debt, Gross | 643.1 | 642.6
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 | $ 0.6 |
Issuance Cost | 3.6 |
Long-term Debt, Gross | 495.8 | 495.5
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 |
Interest Rate Stated Percentage | 5.375% |
Effective Interest Rate | 5.65% |
Long-term Debt, Gross | $ 293.0 | 0.0
Unsecured Debt | 292.9 |
Debt Instrument, Unamortized Discount | 3.8 |
Debt Issuance Costs, Gross | $ 3.3 |
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 | $ 1.0 |
Issuance Cost | 5.1 |
Long-term Debt, Gross | 493.9 | 493.7
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 | $ 2.6 |
Issuance Cost | 4.7 |
Long-term Debt, Gross | 492.7 | 492.6
Other notes payable and capitalized leases |  |
Debt Instrument [Line Items] |  |
Long-term Debt, Gross | $ 0.7 | $ 0.8
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% |
Unsecured Debt 4.200% Notes Remaining Principal |  |
Debt Instrument [Line Items] |  |
Par Value | $ 250.0 |
Maturity Date | Apr. 15, 2024 |
Interest Rate Stated Percentage | 4.20% |
Unamortized Discount | $ 0.0 |
Issuance Cost | 0.2 |
Long-term Debt, Gross | $ 249.8 |

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