Goodwill and Other Intangibles (Schedule of Finite-lived and Indefinite-lived Intangible Assets other than Goodwill) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Finite-lived intangible assets:
Accumulated Amortization	$ (2,277.0)	$ (2,622.7)
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Carrying Amount, Gross	9,183.6	9,829.3
Accumulated Amortization	(2,277.0)	(2,622.7)
Carrying Amount, Net	6,906.6	7,206.6
Acquired IPR&D
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	966.8	1,871.8
Marketed products
Finite-lived intangible assets:
Carrying Amount, Gross	8,216.8	7,957.5
Accumulated Amortization	(2,277.0)	(2,622.7)
Carrying Amount, Net	5,939.8	5,334.8
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Accumulated Amortization	$ (2,277.0)	$ (2,622.7)