Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Segments:
Total revenue	$ 2,637.7	$ 2,542.0	$ 7,941.9	$ 7,308.6
Net revenue	2,296.2	2,261.7	6,898.9	6,559.0
Segment EBITA	362.0	373.0	999.2	1,043.6
Amortization of acquired intangibles	(20.2)	(21.5)	(62.6)	(64.7)
Depreciation	46.8	47.9	139.3	144.0
Capital expenditures	46.2	61.3	118.5	123.4
Total assets	16,875.2		16,875.2		$ 19,909.2
Operating income	341.8	351.5	936.6	978.9
Total (expenses) and other income	(10.4)	(33.2)	(80.5)	(190.1)
Income before income taxes	331.4	318.3	856.1	788.8
MD&E
Segments:
Total revenue	994.6	1,001.5	2,991.2	2,876.0
Net revenue	978.0	980.0	2,927.9	2,815.1
Segment EBITA	160.9	198.5	416.9	535.9
Amortization of acquired intangibles	17.7	17.9	53.4	54.0
Depreciation	26.0	26.0	77.8	75.3
Capital expenditures	26.9	36.6	64.4	66.8
Total assets	8,443.0		8,443.0		9,580.6
IA&C
Segments:
Total revenue	1,057.5	1,033.3	3,215.1	3,035.4
Net revenue	973.3	951.2	2,941.1	2,789.7
Segment EBITA	157.3	152.7	464.9	453.7
Amortization of acquired intangibles	1.7	2.5	6.4	7.7
Depreciation	15.1	15.5	44.3	49.0
Capital expenditures	10.0	15.8	27.0	34.9
Total assets	5,294.0		5,294.0		6,001.1
SC&E
Segments:
Total revenue	585.6	507.2	1,735.6	1,397.2
Net revenue	344.9	330.5	1,029.9	954.2
Segment EBITA	63.8	54.1	179.3	148.0
Amortization of acquired intangibles	0.8	1.1	2.8	3.0
Depreciation	4.2	4.0	12.6	13.3
Capital expenditures	2.4	2.4	5.7	4.7
Total assets	1,649.6		1,649.6		1,594.0
Corporate and Other
Segments:
Segment EBITA	(20.0)	(32.3)	(61.9)	(94.0)
Amortization of acquired intangibles	0.0	0.0	0.0	0.0
Depreciation	1.5	2.4	4.6	6.4
Capital expenditures	6.9	$ 6.5	21.4	$ 17.0
Total assets	$ 1,488.6		$ 1,488.6		$ 2,733.5