Segment Reporting - Geographical (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue and long-lived assets and goodwill by geographic region
Revenue	$ 15,689.1	$ 14,692.2	$ 14,289.1
Americas
Revenue and long-lived assets and goodwill by geographic region
Revenue	9,083.9	8,337.8	8,185.0
Long-lived assets and goodwill	8,166.6	7,749.5	7,727.0
EMEA
Revenue and long-lived assets and goodwill by geographic region
Revenue	4,758.2	4,576.5	4,357.2
Long-lived assets and goodwill	3,693.9	3,523.3	3,315.2
Asia-Pacific
Revenue and long-lived assets and goodwill by geographic region
Revenue	1,847.0	1,777.9	1,746.9
Long-lived assets and goodwill	$ 685.2	$ 730.8	$ 757.2