Supplementary Data (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Jan. 01, 2022	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Text Block [Abstract]
Goodwill	$ 5,050.6	$ 5,078.4		$ 5,078.4		$ 5,050.6
Goodwill, Acquired During Period				9.4
Goodwill, Other Decrease				18.4
Goodwill	5,050.6	5,078.4		5,078.4		5,050.6
Goodwill, Transfers	0.0
Goodwill, Acquired During Period				9.4
Goodwill, Other Decrease				18.4
Severance and termination costs		0.1	$ 0.0	0.4	$ 0.3
Lease impairment costs		(2.4)	0.0	(1.2)	5.3
Other restructuring costs		0.6	(0.1)	0.7	0.9
Restructuring charges		(1.7)	(0.1)	(0.1)	6.5
MD&E
Text Block [Abstract]
Goodwill	2,665.2	2,674.7		2,674.7		2,484.6
Goodwill, Acquired During Period				0.5
Goodwill, Other Decrease				9.0
Goodwill	2,665.2	2,674.7		2,674.7		2,484.6
Goodwill, Transfers	180.6
Goodwill, Acquired During Period				0.5
Goodwill, Other Decrease				9.0
Lease impairment costs		(1.2)		(1.3)	(0.1)
Restructuring charges		(1.2)	0.0	(1.2)	(0.1)
IA&C
Text Block [Abstract]
Goodwill	1,701.0	1,714.8		1,714.8		1,881.6
Goodwill, Acquired During Period				7.9
Goodwill, Other Decrease				5.9
Goodwill	1,701.0	1,714.8		1,714.8		1,881.6
Goodwill, Transfers	(180.6)
Goodwill, Acquired During Period				7.9
Goodwill, Other Decrease				5.9
Lease impairment costs		(0.2)		(0.2)	5.2
Restructuring charges		0.0	(0.1)	0.3	6.1
SC&E
Text Block [Abstract]
Goodwill	684.4	688.9		688.9		684.4
Goodwill, Acquired During Period				1.0
Goodwill, Other Decrease				3.5
Goodwill	684.4	688.9		688.9		$ 684.4
Goodwill, Transfers	$ 0.0
Goodwill, Acquired During Period				1.0
Goodwill, Other Decrease				3.5
Lease impairment costs		(1.0)		0.3	0.2
Restructuring charges		$ (0.4)	$ 0.0	$ 0.9	$ 0.4