Segment and Geographic Area Information - Depreciation and Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Depreciation	$ 1,254	$ 1,491	$ 1,195
Additions to Property and Equipment	1,775	1,872	2,193
Total Assets	74,438	75,196
Operating Segments
Segment Reporting Information [Line Items]
Depreciation	1,057	1,290	1,000
Additions to Property and Equipment	1,593	1,671	1,975
Total Assets	22,337	21,174	20,955
Operating Segments | Established Pharmaceuticals
Segment Reporting Information [Line Items]
Depreciation	97	94	88
Additions to Property and Equipment	175	169	109
Total Assets	2,883	2,789	2,888
Operating Segments | Nutritionals
Segment Reporting Information [Line Items]
Depreciation	155	151	143
Additions to Property and Equipment	251	174	201
Total Assets	3,625	3,425	3,478
Operating Segments | Diagnostics
Segment Reporting Information [Line Items]
Depreciation	494	760	488
Additions to Property and Equipment	832	980	1,263
Total Assets	7,985	7,699	7,696
Operating Segments | Medical Devices
Segment Reporting Information [Line Items]
Depreciation	311	285	281
Additions to Property and Equipment	335	348	402
Total Assets	7,844	7,261	6,893
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Depreciation	197	201	195
Additions to Property and Equipment	$ 182	$ 201	$ 218