Debt (Summary of Long-Term Debt) (Details) € in Millions, $ in Millions	Sep. 30, 2024 USD ($)	Sep. 16, 2024 EUR (€)	Sep. 16, 2024 USD ($)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Current portion of long-term debt	$ 1,438.7			$ 1,934.7
Unamortized debt issuance expense	(25.2)			(29.5)
Long-term debt	14,303.4			16,188.1
Other Current Portion of Long-term Debt
Debt Instrument [Line Items]
Current portion of long-term debt	0.6			0.4
2020 Euro Senior Notes
Debt Instrument [Line Items]
Long-term debt	278.5			283.6
Other
Debt Instrument [Line Items]
Long-term debt	$ 3.0			2.4
2024 Euro Senior Notes, 1.023%
Debt Instrument [Line Items]
Stated percentage rate	1.023%
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 | 2024 Euro Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	2.25%
Current portion of long-term debt	$ 1,113.4			1,103.5
Senior Notes | 2025 Euro Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	2.125%
Current portion of long-term debt	$ 325.0			0.0
Long-term debt | €		€ 208.1
Long-term debt	$ 0.0			551.7
Senior Notes | 2026 Senior Notes (3.950% coupon)
Debt Instrument [Line Items]
Stated percentage rate	3.95%
Long-term debt			$ 575.0
Long-term debt	$ 1,672.4			2,245.1
Senior Notes | 2028 Euro Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	3.125%
Long-term debt	$ 831.8			824.1
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	$ 749.2			749.1
Senior Notes | 2043 Senior Notes (5.400% coupon)
Debt Instrument [Line Items]
Stated percentage rate	5.40%
Long-term debt	$ 497.5			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			747.8
Senior Notes | 2024 Euro Senior Notes, 1.023%
Debt Instrument [Line Items]
Current portion of long-term debt	$ 0.0			831.5
Senior Notes | 2025 Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	1.65%
Long-term debt	$ 0.0		$ 432.0	755.7
Senior Notes | 2027 Euro Senior Notes
Debt Instrument [Line Items]
Long-term debt	969.3			967.2
Senior Notes | 2027 Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 765.6			769.8
Senior Notes | 2030 Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	2.70%
Long-term debt	$ 1,499.0			1,505.0
Senior Notes | 2032 Euro Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	1.908%
Long-term debt	$ 1,482.8			1,478.4
Senior Notes | 2040 Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	3.85%
Long-term debt	$ 1,638.9			1,644.0
Senior Notes | 2050 Senior Notes
Debt Instrument [Line Items]
Stated percentage rate	4.00%
Long-term debt	$ 2,192.8			2,196.3
Current Portion of Long-Term Debt
Debt Instrument [Line Items]
Unamortized debt issuance expense	$ (0.3)			$ (0.7)