Leases, Other supplemental data related to operating leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases
Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases	$ 103.2	$ 88.1	$ 86.0
Right-of-use assets obtained in exchange for lease liabilities	$ 121.5	$ 104.7	$ 98.6
Weighted Average Remaining Lease Term	5 years	5 years	6 years
Weighted Average Discount Rate	2.20%	2.60%	3.20%