Debt (Issuances) (Details) - Senior Notes $ in Millions	Jun. 30, 2025 USD ($)
Debt Instrument [Line Items]
Long-term debt, principal amount	$ 2,867.9
4.300% Notes due 2028
Debt Instrument [Line Items]
Interest rate	4.30%
Long-term debt, principal amount	$ 600.0
4.900% Notes due 2033
Debt Instrument [Line Items]
Interest rate	4.90%
Long-term debt, principal amount	$ 500.0
2.950% Notes due 2031
Debt Instrument [Line Items]
Interest rate	2.95%
Long-term debt, principal amount	$ 589.3
3.250% Notes due 2032
Debt Instrument [Line Items]
Interest rate	3.25%
Long-term debt, principal amount	$ 589.3
3.450% Notes due 2037
Debt Instrument [Line Items]
Interest rate	3.45%
Long-term debt, principal amount	$ 589.3