Goodwill and Other Intangible Assets - Components of Identifiable Intangible Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Identifiable Intangible Assets Acquired [Line Items]
Gross carrying amount	$ 9,749.4	$ 9,477.8
Accumulated amortization	(5,601.0)	(5,083.0)
Gross carrying amount	450.0	461.6
Total identifiable intangible assets	4,598.4	4,856.4
Technology [Member]
Identifiable Intangible Assets Acquired [Line Items]
Gross carrying amount	3,438.1	3,177.4
Accumulated amortization	(2,056.6)	(1,894.2)
Total identifiable intangible assets	1,381.5	1,283.2
Intellectual Property Rights [Member]
Identifiable Intangible Assets Acquired [Line Items]
Gross carrying amount	478.0	473.2
Accumulated amortization	(346.3)	(295.1)
Total identifiable intangible assets	131.7	178.1
Trademarks and trade names [Member]
Identifiable Intangible Assets Acquired [Line Items]
Gross carrying amount	520.4	523.8
Accumulated amortization	(313.0)	(289.9)
Gross carrying amount	450.0	454.6
Total identifiable intangible assets	657.4	688.5
Customer relationships [Member]
Identifiable Intangible Assets Acquired [Line Items]
Gross carrying amount	5,124.5	5,130.7
Accumulated amortization	(2,761.4)	(2,495.4)
Total identifiable intangible assets	2,363.1	2,635.3
In Process Research and Development (IPR&D) [Member]
Identifiable Intangible Assets Acquired [Line Items]
Gross carrying amount		7.0
Total identifiable intangible assets		7.0
Other [Member]
Identifiable Intangible Assets Acquired [Line Items]
Gross carrying amount	188.4	172.7
Accumulated amortization	(123.7)	(108.4)
Total identifiable intangible assets	$ 64.7	$ 64.3