Revenue - Summary of Revenue by Sales Category (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting Information [Line Items]
Net sales	$ 9,964	$ 9,747
Operating Segments
Segment Reporting Information [Line Items]
Net sales	9,961	9,744
Other
Segment Reporting Information [Line Items]
Net sales	3	3
U.S.
Segment Reporting Information [Line Items]
Net sales	3,846	3,928
U.S. | Other
Segment Reporting Information [Line Items]
Net sales	3	3
Int’l
Segment Reporting Information [Line Items]
Net sales	6,118	5,819
Int’l | Other
Segment Reporting Information [Line Items]
Net sales	0	0
Established Pharmaceutical Products | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,226	1,189
Established Pharmaceutical Products | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	0	0
Established Pharmaceutical Products | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,226	1,189
Nutritionals | Operating Segments
Segment Reporting Information [Line Items]
Net sales	2,068	1,967
Nutritionals | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	878	812
Nutritionals | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,190	1,155
Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net sales	2,214	2,688
Diagnostics | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	931	1,335
Diagnostics | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,283	1,353
Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net sales	4,453	3,900
Medical Devices | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	2,034	1,778
Medical Devices | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	2,419	2,122
Key Emerging Markets | Established Pharmaceutical Products | Operating Segments
Segment Reporting Information [Line Items]
Net sales	928	912
Key Emerging Markets | Established Pharmaceutical Products | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	0	0
Key Emerging Markets | Established Pharmaceutical Products | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	928	912
Other | Established Pharmaceutical Products | Operating Segments
Segment Reporting Information [Line Items]
Net sales	298	277
Other | Established Pharmaceutical Products | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	0	0
Other | Established Pharmaceutical Products | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	298	277
Pediatric Nutritionals | Nutritionals | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,009	924
Pediatric Nutritionals | Nutritionals | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	514	459
Pediatric Nutritionals | Nutritionals | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	495	465
Adult Nutritionals | Nutritionals | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,059	1,043
Adult Nutritionals | Nutritionals | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	364	353
Adult Nutritionals | Nutritionals | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	695	690
Core Laboratory | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,205	1,182
Core Laboratory | Diagnostics | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	310	289
Core Laboratory | Diagnostics | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	895	893
Molecular | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net sales	129	147
Molecular | Diagnostics | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	42	47
Molecular | Diagnostics | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	87	100
Point of Care | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net sales	139	134
Point of Care | Diagnostics | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	98	93
Point of Care | Diagnostics | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	41	41
Rapid Diagnostics | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net sales	741	1,225
Rapid Diagnostics | Diagnostics | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	481	906
Rapid Diagnostics | Diagnostics | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	260	319
Rhythm Management | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net sales	562	527
Rhythm Management | Medical Devices | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	271	260
Rhythm Management | Medical Devices | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	291	267
Electrophysiology | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net sales	587	505
Electrophysiology | Medical Devices | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	269	238
Electrophysiology | Medical Devices | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	318	267
Heart Failure | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net sales	305	281
Heart Failure | Medical Devices | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	237	218
Heart Failure | Medical Devices | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	68	63
Vascular | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net sales	689	617
Vascular | Medical Devices | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	254	218
Vascular | Medical Devices | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	435	399
Structural Heart | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net sales	515	461
Structural Heart | Medical Devices | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	233	210
Structural Heart | Medical Devices | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	282	251
Neuromodulation | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net sales	226	196
Neuromodulation | Medical Devices | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	181	155
Neuromodulation | Medical Devices | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	45	41
Diabetes Care | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net sales	1,569	1,313
Diabetes Care | Medical Devices | U.S. | Operating Segments
Segment Reporting Information [Line Items]
Net sales	589	479
Diabetes Care | Medical Devices | Int’l | Operating Segments
Segment Reporting Information [Line Items]
Net sales	$ 980	$ 834