Revenue Major Geographical Area (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Total revenues:
Total revenue	$ 2,666.5	$ 2,735.7	$ 5,187.5	$ 5,304.2
Net revenue	2,328.5	2,375.5	4,505.4	4,602.7
United States
Total revenues:
Total revenue	1,737.2	1,777.1	3,420.4	3,427.5
Net revenue	1,531.8	1,554.9	3,002.4	3,025.0
United Kingdom
Total revenues:
Total revenue	216.3	219.2	412.1	451.3
Net revenue	184.9	184.8	355.1	367.2
Continental Europe
Total revenues:
Total revenue	214.8	221.1	408.4	425.8
Net revenue	192.5	199.8	356.2	379.1
Asia Pacific
Total revenues:
Total revenue	211.7	217.8	403.6	433.1
Net revenue	177.3	187.8	336.5	362.4
Latin America
Total revenues:
Total revenue	110.4	110.0	201.1	204.4
Net revenue	102.4	101.9	187.1	189.6
Other
Total revenues:
Total revenue	176.1	190.5	341.9	362.1
Net revenue	139.6	146.3	268.1	279.4
International
Total revenues:
Total revenue	929.3	958.6	1,767.1	1,876.7
Net revenue	796.7	820.6	1,503.0	1,577.7
MD&E
Total revenues:
Total revenue	1,070.2	1,089.0	2,052.0	2,085.8
Net revenue	1,055.5	1,065.3	2,016.3	2,039.0
MD&E | United States
Total revenues:
Total revenue	674.5	676.0	1,322.8	1,316.3
Net revenue	670.8	663.1	1,306.7	1,291.6
MD&E | International
Total revenues:
Total revenue	395.7	413.0	729.2	769.5
Net revenue	384.7	402.2	709.6	747.4
IA&C
Total revenues:
Total revenue	1,010.6	1,055.8	1,974.7	2,068.4
Net revenue	913.7	961.8	1,789.3	1,878.7
IA&C | United States
Total revenues:
Total revenue	644.8	670.8	1,268.5	1,303.6
Net revenue	609.0	645.1	1,202.7	1,250.8
IA&C | International
Total revenues:
Total revenue	365.8	385.0	706.2	764.8
Net revenue	304.7	316.7	586.6	627.9
SC&E
Total revenues:
Total revenue	585.7	590.9	1,160.8	1,150.0
Net revenue	359.3	348.4	699.8	685.0
SC&E | United States
Total revenues:
Total revenue	417.9	430.3	829.1	807.6
Net revenue	252.0	246.7	493.0	482.6
SC&E | International
Total revenues:
Total revenue	167.8	160.6	331.7	342.4
Net revenue	$ 107.3	$ 101.7	$ 206.8	$ 202.4