Other Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Other intangible assets
Acquired Cost	$ 2,072.2	$ 2,048.4
Accumulated Amortization	(576.2)	(543.5)
Net Book Value	1,496.0	1,504.9
Indefinite lived trade names
Assets not subject to amortization:
Acquired Cost	252.6	252.0
Accumulated Amortization	0.0	0.0
Net Book Value	252.6	252.0
Customer relationships
Assets subject to amortization:
Acquired Cost	1,471.4	1,456.0
Accumulated Amortization	(406.3)	(380.5)
Net Book Value	1,065.1	1,075.5
Technology
Assets subject to amortization:
Acquired Cost	191.4	185.6
Accumulated Amortization	(106.7)	(103.4)
Net Book Value	84.7	82.2
Indefinite lived trade names
Assets subject to amortization:
Acquired Cost	117.1	117.0
Accumulated Amortization	(38.5)	(37.0)
Net Book Value	78.6	80.0
Other
Assets subject to amortization:
Acquired Cost	39.7	37.8
Accumulated Amortization	(24.7)	(22.6)
Net Book Value	$ 15.0	$ 15.2