Revenue Major Geographical Area (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Total revenues:
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
United States
Total revenues:
Total revenue	1,744.3	1,612.1	5,171.8	4,595.8
Net revenue	1,523.0	1,459.3	4,548.0	4,204.6
United Kingdom
Total revenues:
Total revenue	195.5	224.3	646.8	637.4
Net revenue	176.5	195.1	543.7	573.7
Continental Europe
Total revenues:
Total revenue	184.4	200.2	610.2	625.6
Net revenue	160.1	178.1	539.2	559.4
Asia Pacific
Total revenues:
Total revenue	219.8	229.0	652.9	673.1
Net revenue	187.1	192.0	549.5	553.6
Latin America
Total revenues:
Total revenue	113.6	104.3	318.0	290.1
Net revenue	107.4	96.3	297.0	268.6
Other
Total revenues:
Total revenue	180.1	172.1	542.2	486.6
Net revenue	142.1	140.9	421.5	399.1
International
Total revenues:
Total revenue	893.4	929.9	2,770.1	2,712.8
Net revenue	773.2	802.4	2,350.9	2,354.4
MD&E
Total revenues:
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
MD&E | United States
Total revenues:
Total revenue	613.1	614.4	1,841.3	1,752.5
Net revenue	606.5	606.8	1,811.9	1,733.2
MD&E | International
Total revenues:
Total revenue	381.5	387.1	1,149.9	1,123.5
Net revenue	371.5	373.2	1,116.0	1,081.9
IA&C
Total revenues:
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
IA&C | United States
Total revenues:
Total revenue	689.9	644.0	2,081.7	1,883.8
Net revenue	665.5	620.5	2,002.5	1,810.8
IA&C | International
Total revenues:
Total revenue	367.6	389.3	1,133.4	1,151.6
Net revenue	307.8	330.7	938.6	978.9
SC&E
Total revenues:
Total revenue	585.6	507.2	1,735.6	1,397.2
Net revenue	344.9	330.5	1,029.9	954.2
SC&E | United States
Total revenues:
Total revenue	441.3	353.7	1,248.8	959.5
Net revenue	251.0	232.0	733.6	660.6
SC&E | International
Total revenues:
Total revenue	144.3	153.5	486.8	437.7
Net revenue	$ 93.9	$ 98.5	$ 296.3	$ 293.6