Goodwill and Intangible Assets (Components of Intangible Assets) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Intangible Assets by Major Class [Line Items]
Intangible asset disposal & impairment charges	$ 102.0	$ 0.0		$ 102.0	$ 0.0
Finite-lived intangible assets, original cost	33,753.0			33,753.0		$ 34,178.1
Finite-lived intangible assets, accumulated amortization	16,226.1			16,226.1		15,316.4
Finite-lived intangible assets, net book value	17,526.9			17,526.9		18,861.7
In-process research and development	892.1			892.1		319.4
Intangible assets, gross, excluding goodwill	34,645.1			34,645.1		34,497.5
Intangible assets, net book value, excluding goodwill	$ 18,419.0			$ 18,419.0		$ 19,181.1
Patents and technologies
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, estimated useful life, in years	13 years			13 years		13 years
Licensing Agreements
Intangible Assets by Major Class [Line Items]
Write down of intangible assets		$ 32.0	$ 172.9		$ 32.0