Goodwill and Other Intangible Assets, net - Other Intangibles and Amortization (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Other intangible assets
Accumulated Amortization	$ (725.1)	$ (695.7)
Other intangible assets, net
Other intangible assets, Acquired Cost	1,725.9	1,730.5
Other intangible assets, net	1,000.8	1,034.8
Trade names
Assets not subject to amortization:
Trade names	237.8	238.6
Customer relationships
Other intangible assets
Acquired Cost	1,058.0	1,060.6
Accumulated Amortization	(454.3)	(436.4)
Net Book Value	603.7	624.2
Technology and intellectual property
Other intangible assets
Acquired Cost	311.6	313.6
Accumulated Amortization	(215.6)	(208.9)
Net Book Value	96.0	104.7
Trade Names and Other
Other intangible assets
Acquired Cost	118.5	117.7
Accumulated Amortization	(55.2)	(50.4)
Net Book Value	$ 63.3	$ 67.3