Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Segments:
Total revenue	$ 2,495.9	$ 2,521.0
Net revenue	2,182.9	2,176.9
Segment EBITA	204.9	209.2
Amortization of acquired intangibles	(20.7)	(20.9)
Depreciation	44.5	45.6
Capital expenditures	35.1	32.9
Total assets	17,286.1		$ 19,267.3
Operating income	184.2	188.3
Total (expenses) and other income	(23.6)	(22.3)
Income before income taxes	160.6	166.0
Restructuring charges	0.6	1.6
MD&E
Segments:
Total revenue	973.3	986.9
Net revenue	961.3	965.9
Segment EBITA	93.2	79.8
Amortization of acquired intangibles	19.2	19.4
Depreciation	26.5	26.3
Capital expenditures	21.5	22.4
Total assets	9,556.1		10,737.5
Restructuring charges	0.0	0.0
IA&C
Segments:
Total revenue	963.8	959.0
Net revenue	881.4	870.5
Segment EBITA	107.9	98.1
Amortization of acquired intangibles	1.0	0.9
Depreciation	12.4	14.1
Capital expenditures	2.4	1.8
Total assets	4,662.1		4,790.4
Restructuring charges	0.3	0.3
Lease impairment costs	0.3
SC&E
Segments:
Total revenue	558.8	575.1
Net revenue	340.2	340.5
Segment EBITA	43.9	45.2
Amortization of acquired intangibles	0.5	0.6
Depreciation	3.5	4.2
Capital expenditures	0.8	0.5
Total assets	1,679.8		1,800.6
Restructuring charges	0.3	1.3
Lease impairment costs	0.3	1.2
Corporate and Other
Segments:
Segment EBITA	(40.1)	(13.9)
Amortization of acquired intangibles	0.0	0.0
Depreciation	2.1	1.0
Capital expenditures	10.4	8.2
Total assets	1,388.1		$ 1,938.8
Restructuring charges	$ 0.0	$ 0.0