Business Combinations (Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross	$ 39,424	$ 39,188
Finite-Lived Intangible Assets, Accumulated Amortization	(11,242)	(9,368)
Indefinite-lived Intangible Assets (Excluding Goodwill)	8,641	8,696
Intangible Assets, Gross (Excluding Goodwill)	48,065	47,884
Collaboration [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross	5,536	5,319
Finite-Lived Intangible Assets, Accumulated Amortization	(1,408)	(1,173)
Exclusivity Assets [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross	2,911	2,673
Finite-Lived Intangible Assets, Accumulated Amortization	(323)	(318)
Developed technology and other
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross	1,202	1,214
Finite-Lived Intangible Assets, Accumulated Amortization	(544)	(466)
Customer Relationships [Member]
Business Acquisition [Line Items]
Finite-Lived Intangible Assets, Gross	29,775	29,982
Finite-Lived Intangible Assets, Accumulated Amortization	$ (8,967)	$ (7,411)