Revenue Major Geographical Area (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Total revenues:
Total revenue	$ 2,710.0	$ 2,666.5	$ 5,205.9	$ 5,187.5
Net revenue	2,327.1	2,328.5	4,510.0	4,505.4
United States
Total revenues:
Total revenue	1,755.8	1,737.2	3,417.8	3,420.4
Net revenue	1,525.5	1,531.8	3,001.8	3,002.4
United Kingdom
Total revenues:
Total revenue	237.5	216.3	448.4	412.1
Net revenue	193.7	184.9	371.7	355.1
Continental Europe
Total revenues:
Total revenue	229.5	214.8	433.4	408.4
Net revenue	199.2	192.5	378.7	356.2
Asia Pacific
Total revenues:
Total revenue	202.6	211.7	375.7	403.6
Net revenue	167.3	177.3	310.1	336.5
Latin America
Total revenues:
Total revenue	110.2	110.4	202.8	201.1
Net revenue	102.2	102.4	189.3	187.1
Other
Total revenues:
Total revenue	174.4	176.1	327.8	341.9
Net revenue	139.2	139.6	258.4	268.1
International
Total revenues:
Total revenue	954.2	929.3	1,788.1	1,767.1
Net revenue	801.6	796.7	1,508.2	1,503.0
MD&E
Total revenues:
Total revenue	1,075.4	1,075.8	2,048.7	2,062.7
Net revenue	1,063.5	1,060.9	2,024.8	2,026.8
MD&E | United States
Total revenues:
Total revenue	680.6	676.1	1,318.3	1,325.8
Net revenue	677.8	672.4	1,311.3	1,309.7
MD&E | International
Total revenues:
Total revenue	394.8	399.7	730.4	736.9
Net revenue	385.7	388.5	713.5	717.1
IA&C
Total revenues:
Total revenue	999.4	1,005.0	1,963.2	1,964.0
Net revenue	910.1	908.3	1,791.5	1,778.8
IA&C | United States
Total revenues:
Total revenue	626.9	643.2	1,251.5	1,265.5
Net revenue	599.3	607.4	1,200.0	1,199.7
IA&C | International
Total revenues:
Total revenue	372.5	361.8	711.7	698.5
Net revenue	310.8	300.9	591.5	579.1
SC&E
Total revenues:
Total revenue	635.2	585.7	1,194.0	1,160.8
Net revenue	353.5	359.3	693.7	699.8
SC&E | United States
Total revenues:
Total revenue	448.3	417.9	848.0	829.1
Net revenue	248.4	252.0	490.5	493.0
SC&E | International
Total revenues:
Total revenue	186.9	167.8	346.0	331.7
Net revenue	$ 105.1	$ 107.3	$ 203.2	$ 206.8