Income Taxes, Provision and Effective tax rate impacts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Taxes
Provision for income taxes	$ (570.3)	$ (509.3)	$ (550.6)
Effective tax rate	18.90%	20.70%	22.30%
Discrete tax benefit comprised of the settlement of tax audits and lapses of statutes of limitation, along with a difference in a non-U.S. tax filing position	$ 18.6
Impact on the effective tax rate associated with the discrete tax benefit comprised of the settlement of tax audits and lapses of statutes of limitation, along with a difference in a non-U.S. tax filing position.	(0.60%)
Excess tax benefit from option exercises	$ 142.6	$ 82.4	$ 56.0
Excess tax benefit, impact on effective tax rate	(4.70%)	(3.40%)	(2.30%)
Impact of gain associated with the bargain purchase acquisition on the effective tax rate		(0.10%)
Impact of acquisition-related expenses on the effective tax rate	0.30%	0.20%	0.10%