Segment and Geographic Area Information - Sales and Earnings (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net Sales to External Customers	$ 43,653	$ 43,075	$ 34,608
Operating Earnings	8,362	8,425	5,357
Operating Segments
Segment Reporting Information [Line Items]
Net Sales to External Customers	43,642	43,023	34,542
Operating Earnings	12,831	13,422	9,308
Operating Segments | Established Pharmaceutical Products
Segment Reporting Information [Line Items]
Net Sales to External Customers	4,912	4,718	4,303
Operating Earnings	1,049	889	794
Operating Segments | Nutritional Products
Segment Reporting Information [Line Items]
Net Sales to External Customers	7,459	8,294	7,647
Operating Earnings	706	1,763	1,751
Operating Segments | Diagnostic Products
Segment Reporting Information [Line Items]
Net Sales to External Customers	16,584	15,644	10,805
Operating Earnings	6,667	6,256	3,725
Operating Segments | Medical Devices
Segment Reporting Information [Line Items]
Net Sales to External Customers	14,687	14,367	11,787
Operating Earnings	4,409	4,514	3,038
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Net Sales to External Customers	$ 11	$ 52	$ 66