Supplementary Data (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Jan. 01, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Text Block [Abstract]
Goodwill	$ 5,080.9	$ 5,059.1		$ 5,059.1		$ 5,080.9
Goodwill, Acquired During Period				(1.0)
Goodwill, Other Decrease				(20.8)
Goodwill	5,080.9	5,059.1		5,059.1		5,080.9
Goodwill, Transfers	0.0
Goodwill, Acquired During Period				(1.0)
Goodwill, Other Decrease				(20.8)
Restructuring charges		0.3	$ (1.7)	0.9	$ (0.1)
MD&E
Text Block [Abstract]
Goodwill	2,690.8	2,684.9		2,684.9		2,677.5
Goodwill, Acquired During Period				0.0
Goodwill, Other Decrease				(5.9)
Goodwill	2,690.8	2,684.9		2,684.9		2,677.5
Goodwill, Transfers	13.3
Goodwill, Acquired During Period				0.0
Goodwill, Other Decrease				(5.9)
Lease impairment costs		0.2	(1.2)	0.2	(1.3)
Restructuring charges		0.3	(1.2)	0.3	(1.2)
IA&C
Text Block [Abstract]
Goodwill	1,709.9	1,697.8		1,697.8		1,723.2
Goodwill, Acquired During Period				(1.2)
Goodwill, Other Decrease				(10.9)
Goodwill	1,709.9	1,697.8		1,697.8		1,723.2
Goodwill, Transfers	(13.3)
Goodwill, Acquired During Period				(1.2)
Goodwill, Other Decrease				(10.9)
Lease impairment costs			(0.2)	0.3	(0.2)
Restructuring charges		0.0	0.0	0.3	0.3
SC&E
Text Block [Abstract]
Goodwill	680.2	676.4		676.4		680.2
Goodwill, Acquired During Period				0.2
Goodwill, Other Decrease				(4.0)
Goodwill	680.2	676.4		676.4		$ 680.2
Goodwill, Transfers	$ 0.0
Goodwill, Acquired During Period				0.2
Goodwill, Other Decrease				(4.0)
Lease impairment costs			(1.0)	0.3	0.3
Restructuring charges		$ 0.0	$ (0.4)	$ 0.3	$ 0.9