Goodwill - Summary of Change in Carrying Value of Goodwill (Detail) $ in Millions	6 Months Ended
Jun. 30, 2025 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Beginning balance	$ 9,218.1
Acquisitions completed in the current year	6.0
Effect of foreign currency translation	196.8
Ending balance	$ 9,420.9

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details