Goodwill and Intangible Assets (Components of Intangible Assets) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Intangible Assets by Major Class [Line Items]
Intangible asset impairment charges	$ 0.0	$ 83.4
Finite-lived intangible assets, original cost	38,550.7		$ 39,006.2
Finite-lived intangible assets, accumulated amortization	13,344.6		12,918.5
Finite-lived intangible assets, net book value	25,206.1		26,087.7
In-process research and development	45.7		46.5
Intangible assets, gross, excluding goodwill	38,596.4		39,052.7
Intangible assets, net book value, excluding goodwill	$ 25,251.8		$ 26,134.2
Patents and technologies
Intangible Assets by Major Class [Line Items]
Finite-lived intangible assets, estimated useful life, in years	15 years		15 years