Debt (Long-Term Debt) (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2025	Dec. 31, 2024
4.5% Senior Notes \| Senior Notes
Percentage interest	4.50%
Recourse
Long-term debt	$ 3,653.1	$ 3,150.0
Less: unamortized debt discounts and debt issuance costs	(20.0)	(17.9)
Less: current maturities	(469.2)	(518.5)
Long-term debt, net of current maturities	$ 3,163.9	2,613.6
Recourse \| 4.5% Senior Notes \| Senior Notes
Percentage interest	4.50%
Maturity Date	Oct. 01, 2025
Senior notes	$ 450.0	450.0
Recourse \| 3.8% Senior Notes \| Senior Notes
Percentage interest	3.80%
Maturity Date	Nov. 15, 2027
Senior notes	$ 300.0	300.0
Recourse \| 1.95% Senior Notes \| Senior Notes
Percentage interest	1.95%
Maturity Date	Aug. 01, 2028
Senior notes	$ 400.0	400.0
Recourse \| 4.75% Senior Notes \| Senior Notes
Percentage interest	4.75%
Maturity Date	Jun. 01, 2030
Senior notes	$ 500.0	500.0
Recourse \| 2.4% Senior Notes \| Senior Notes
Percentage interest	2.40%
Maturity Date	Aug. 01, 2031
Senior notes	$ 450.0	450.0
Recourse \| 3.85% Senior Notes \| Senior Notes
Percentage interest	3.85%
Maturity Date	Mar. 01, 2032
Senior notes	$ 700.0	700.0
Recourse \| 5.89% Senior Notes \| Senior Notes
Percentage interest	5.89%
Maturity Date	Mar. 15, 2035
Senior notes	$ 500.0	0.0
Recourse \| Revolving Credit Facility Due 2028
Revolving credit facility	$ 0.0	0.0
Recourse \| Revolving Credit Facility Due 2028 \| Line of Credit
Maturity Date	Jul. 18, 2028
Recourse \| Other Debt
Finance leases and other debt	$ 353.1	$ 350.0

Finance leases for real property and equipment classified as long-term debt.

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Amount of long-term debt and lease obligation, classified as noncurrent.

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Amount of long-term debt and lease obligation, classified as current.

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- Definition

Amount of long-term debt and lease obligation, including portion classified as current.

+ References

No definition available.

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