Segment Reporting (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue and Long-Lived Assets and Goodwill by Geographic Region
Revenue	$ 3,443.4	$ 3,435.0	$ 10,420.9	$ 10,433.6
Americas
Revenue and Long-Lived Assets and Goodwill by Geographic Region
Revenue	2,046.3	1,894.3	6,002.4	5,957.8
Long-lived assets and goodwill	7,753.2	7,567.2	7,753.2	7,567.2
EMEA
Revenue and Long-Lived Assets and Goodwill by Geographic Region
Revenue	970.2	1,082.4	3,133.9	3,170.1
Long-lived assets and goodwill	3,039.2	2,991.1	3,039.2	2,991.1
Asia-Pacific
Revenue and Long-Lived Assets and Goodwill by Geographic Region
Revenue	426.9	458.3	1,284.6	1,305.7
Long-lived assets and goodwill	$ 724.2	$ 686.1	$ 724.2	$ 686.1