Acquisitions, Goodwill, and Other Intangible Assets, Net - Pro Forma Results (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Intangible Asset, Goodwill and Other [Abstract]
Revenue	$ 5,252.0	$ 4,346.5	$ 14,288.8	$ 11,477.5
Net income	$ 174.3	$ 174.6	$ 403.0	$ 276.9

Amount, after tax, of pro forma income (loss) of combined entity as if acquisition date of business combination occurred as of beginning of period.

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