Debt (Summary of Long-Term Debt) (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024
Debt Instrument [Line Items]
Current portion of long-term debt	$ 1,673.1	$ 0.6
Unamortized debt issuance expense	(21.5)	(24.3)
Long-term debt	12,791.6	14,038.9
Other Current Portion of Long-term Debt
Debt Instrument [Line Items]
Current portion of long-term debt	0.8	0.6
2020 Euro Senior Notes
Debt Instrument [Line Items]
Long-term debt	277.7	254.4
Other
Debt Instrument [Line Items]
Long-term debt	$ 2.2	2.2
2027 Euro Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	1.362%
2027 Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	2.30%
Senior Notes | 2026 Senior Notes (3.950% coupon)
Debt Instrument [Line Items]
Stated percentage rate	3.95%
Current portion of long-term debt		0.0	$ 1,673.5
Long-term debt	$ 0.0	1,672.8
Senior Notes | 2028 Euro Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	3.125%
Long-term debt	$ 881.1	773.7
Senior Notes | SeniorNotesTwoThousandTwentyEight [Member]
Debt Instrument [Line Items]
Stated percentage rate	4.55%
Senior Notes | 2028 Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	$ 749.4	749.3
Senior Notes | 2043 Senior Notes (5.400% coupon)
Debt Instrument [Line Items]
Stated percentage rate	5.40%
Long-term debt	$ 497.6	497.5
Senior Notes | 2046 Senior Notes (5.250% coupon)
Debt Instrument [Line Items]
Stated percentage rate	5.25%
Long-term debt	$ 999.9	999.9
Senior Notes | 2048 Senior Notes (5.200%)
Debt Instrument [Line Items]
Stated percentage rate	5.20%
Senior Notes | 2048 Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	$ 747.9	747.9
Senior Notes | 2027 Euro Senior Notes
Debt Instrument [Line Items]
Long-term debt	1,019.5	899.4
Senior Notes | 2027 Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 761.4	764.2
Senior Notes | 2030 Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	2.70%
Long-term debt	$ 1,492.9	1,497.0
Senior Notes | 2032 Euro Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	1.908%
Long-term debt	$ 1,560.7	1,376.2
Senior Notes | 2040 Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	3.85%
Long-term debt	$ 1,633.6	1,637.1
Senior Notes | 2050 Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	4.00%
Long-term debt	$ 2,189.2	2,191.6
Current Portion of Long-Term Debt
Debt Instrument [Line Items]
Unamortized debt issuance expense	$ (1.2)	$ 0.0