Segment Reporting (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue and Long-Lived Assets and Goodwill by Geographic Region
REVENUE	$ 3,578.1	$ 3,443.4	$ 10,631.3	$ 10,420.9
Americas
Revenue and Long-Lived Assets and Goodwill by Geographic Region
REVENUE	2,082.6	2,046.3	6,146.8	6,002.4
Long-lived assets and goodwill	7,742.2	7,753.2	7,742.2	7,753.2
EMEA
Revenue and Long-Lived Assets and Goodwill by Geographic Region
REVENUE	1,068.4	970.2	3,213.4	3,133.9
Long-lived assets and goodwill	3,355.4	3,039.2	3,355.4	3,039.2
Asia-Pacific
Revenue and Long-Lived Assets and Goodwill by Geographic Region
REVENUE	427.1	426.9	1,271.1	1,284.6
Long-lived assets and goodwill	$ 695.4	$ 724.2	$ 695.4	$ 724.2