Goodwill and Other Intangible Assets, net - Other Intangibles and Amortization (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Other intangible assets
Accumulated Amortization	$ (672.2)	$ (615.0)
Other intangible assets, net
Other intangible assets, Acquired Cost	1,576.1	1,575.9
Other intangible assets, net	903.9	960.9
Trade names
Assets not subject to amortization:
Trade names	196.1	196.6
Customer relationships
Other intangible assets
Acquired Cost	998.9	1,000.7
Accumulated Amortization	(429.4)	(393.7)
Net Book Value	569.5	607.0
Technology and intellectual property
Other intangible assets
Acquired Cost	261.2	263.0
Accumulated Amortization	(186.0)	(172.6)
Net Book Value	75.2	90.4
Trade Names and Other
Other intangible assets
Acquired Cost	119.9	115.6
Accumulated Amortization	(56.8)	(48.7)
Net Book Value	$ 63.1	$ 66.9