Goodwill and Other Intangibles (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite-lived intangible assets:
Goodwill, impairment loss	$ 0	$ 0	$ 0
Remaining amortization period (in years)	12 years
Minimum
Finite-lived intangible assets:
Finite-lived intangible asset, useful life (in years)	1 year
Maximum
Finite-lived intangible assets:
Finite-lived intangible asset, useful life (in years)	20 years
Lebrikizumab
Finite-lived intangible assets:
Acquired IPR&D	$ 1,030,000,000.00