Debt (Details) € in Millions, £ in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Mar. 31, 2024 GBP (£)	Mar. 31, 2024 EUR (€)	Jan. 03, 2024 USD ($)	Dec. 31, 2023 USD ($)
Short-Term Borrowings [Abstract]
Short-term debt	$ 11.2					$ 10.9
Long-Term Debt [Abstract]
Long-Term Debt, Gross	6,286.3					5,669.9
Unamortized discount	(8.9)					(7.8)
Unamortized debt issuance costs	(25.7)					(22.3)
Unamortized deferred loss from settlement of interest rate swaps, net	(0.4)					(0.2)
Long-term debt, current portion	(750.3)					(750.5)
Long-Term Debt	5,501.0					4,889.1
Proceeds from borrowings	645.9	$ 0.0
Credit Facility [Member]
Credit Facilities [Abstract]
Credit Facilities, maximum borrowing capacity	$ 2,500.0
Credit Facilities, expiration date	Jun. 02, 2028
Credit Facilities, amount outstanding	$ 0.0
Credit Facilities, covenant terms	The Credit Facility and Term Loan Facility each contain a financial covenant that requires us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA (earnings before interest, taxes, depreciation, amortization and non-cash charges) of no more than 3.5 times for the most recently ended 12-month period.
Credit Facilities, covenant compliance	At March 31, 2024, we were in compliance with this covenant as our Leverage Ratio was 2.5 times.
Delayed Draw Term Loan Agreement
Credit Facilities [Abstract]
Credit Facilities, maximum borrowing capacity	$ 600.0				$ 600.0
Credit Facilities, amount outstanding	$ 0.0
Credit Facilities, covenant terms	The Credit Facility and Term Loan Facility each contain a financial covenant that requires us to maintain a Leverage Ratio of consolidated indebtedness to consolidated EBITDA (earnings before interest, taxes, depreciation, amortization and non-cash charges) of no more than 3.5 times for the most recently ended 12-month period.
Credit Facilities, covenant compliance	At March 31, 2024, we were in compliance with this covenant as our Leverage Ratio was 2.5 times.
Uncommitted credit lines [Member]
Credit Facilities [Abstract]
Credit Facilities, maximum borrowing capacity	$ 507.0
Commercial Paper [Member]
Credit Facilities [Abstract]
Credit Facilities, maximum borrowing capacity	2,000.0
Credit Facilities, amount outstanding	0.0
Euro Commercial Paper [Member]
Credit Facilities [Abstract]
Credit Facilities, maximum borrowing capacity	500.0
Credit Facilities, amount outstanding	0.0
3.65% Senior Notes due 2024
Long-Term Debt [Abstract]
Long-Term Debt, Gross	$ 750.0					750.0
Long-term debt, interest rate	3.65%		3.65%	3.65%
3.60% Senior Notes due 2026
Long-Term Debt [Abstract]
Long-Term Debt, Gross	$ 1,400.0					1,400.0
Long-term debt, interest rate	3.60%		3.60%	3.60%
€500 million 0.80% Senior Notes due 2027
Long-Term Debt [Abstract]
Long-Term Debt, Gross	$ 539.4			€ 500.0		553.0
Long-term debt, interest rate	0.80%		0.80%	0.80%
2.45% Senior Notes due 2030
Long-Term Debt [Abstract]
Long-Term Debt, Gross	$ 600.0					600.0
Long-term debt, interest rate	2.45%		2.45%	2.45%
4.20% Senior Notes due 2030
Long-Term Debt [Abstract]
Long-Term Debt, Gross	$ 600.0					600.0
Long-term debt, interest rate	4.20%		4.20%	4.20%
€500 million 1.40% Senior Notes due 2031
Long-Term Debt [Abstract]
Long-Term Debt, Gross	$ 539.4			€ 500.0		553.0
Long-term debt, interest rate	1.40%		1.40%	1.40%
2.60% Senior Notes due 2031
Long-Term Debt [Abstract]
Long-Term Debt, Gross	$ 800.0					800.0
Long-term debt, interest rate	2.60%		2.60%	2.60%
€600 million $3.70% Senior Notes due 2032
Long-Term Debt [Abstract]
Long-Term Debt, Gross	$ 647.3		£ 600.0			0.0
Long-term debt, interest rate	3.70%		3.70%	3.70%
Proceeds from borrowings	$ 643.1
£325 million 2.25% Senior Notes due 2033
Long-Term Debt [Abstract]
Long-Term Debt, Gross	$ 410.2		£ 325.0			$ 413.9
Long-term debt, interest rate	2.25%		2.25%	2.25%