Revenue - Revenue by Sales Category (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Net Sales	$ 41,950	$ 40,109	$ 43,653
Operating Segments
Segment Reporting Information [Line Items]
Net Sales	41,934	40,095	43,642
Other
Segment Reporting Information [Line Items]
Net Sales	16	14	11
United States
Segment Reporting Information [Line Items]
Net Sales	16,323	15,452	18,142
United States | Other
Segment Reporting Information [Line Items]
Net Sales	16	14	11
International
Segment Reporting Information [Line Items]
Net Sales	25,627	24,657	25,511
International | Other
Segment Reporting Information [Line Items]
Net Sales	0	0	0
Established Pharmaceuticals | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	5,194	5,066	4,912
Established Pharmaceuticals | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	0	0	0
Established Pharmaceuticals | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	5,194	5,066	4,912
Nutritionals | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	8,413	8,154	7,459
Nutritionals | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	3,689	3,413	2,919
Nutritionals | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	4,724	4,741	4,540
Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	9,341	9,988	16,469
Diagnostics | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	3,830	4,329	8,531
Diagnostics | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	5,511	5,659	7,938
Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	18,986	16,887	14,802
Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	8,788	7,696	6,681
Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	10,198	9,191	8,121
Key Emerging Markets | Established Pharmaceuticals | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	3,858	3,807	3,766
Key Emerging Markets | Established Pharmaceuticals | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	0	0	0
Key Emerging Markets | Established Pharmaceuticals | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	3,858	3,807	3,766
Other | Established Pharmaceuticals | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,336	1,259	1,146
Other | Established Pharmaceuticals | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	0	0	0
Other | Established Pharmaceuticals | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,336	1,259	1,146
Pediatric Nutritionals | Nutritionals | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	4,023	3,934	3,481
Pediatric Nutritionals | Nutritionals | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,208	1,977	1,562
Pediatric Nutritionals | Nutritionals | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,815	1,957	1,919
Adult Nutritionals | Nutritionals | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	4,390	4,220	3,978
Adult Nutritionals | Nutritionals | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,481	1,436	1,357
Adult Nutritionals | Nutritionals | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,909	2,784	2,621
Core Laboratory | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	5,235	5,159	4,888
Core Laboratory | Diagnostics | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,332	1,243	1,137
Core Laboratory | Diagnostics | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	3,903	3,916	3,751
Molecular | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	521	574	995
Molecular | Diagnostics | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	150	172	370
Molecular | Diagnostics | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	371	402	625
Point of Care | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	588	565	525
Point of Care | Diagnostics | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	408	396	372
Point of Care | Diagnostics | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	180	169	153
Rapid Diagnostics | Diagnostics | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Net Sales			(115)
Rapid Diagnostics | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,997	3,690	10,061
Rapid Diagnostics | Diagnostics | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,940	2,518	6,652
Rapid Diagnostics | Diagnostics | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,057	1,172	3,409
Rhythm Management | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,390	2,255	2,119
Rhythm Management | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,154	1,085	1,029
Rhythm Management | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,236	1,170	1,090
Electrophysiology | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,467	2,195	1,927
Electrophysiology | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,141	1,008	909
Electrophysiology | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,326	1,187	1,018
Heart Failure | Medical Devices | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Net Sales			115
Heart Failure | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,279	1,161	1,035
Heart Failure | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	986	888	809
Heart Failure | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	293	273	226
Vascular | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,837	2,681	2,483
Vascular | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,056	978	864
Vascular | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,781	1,703	1,619
Structural Heart | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,246	1,944	1,712
Structural Heart | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,051	883	818
Structural Heart | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,195	1,061	894
Neuromodulation | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	962	890	770
Neuromodulation | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	767	725	619
Neuromodulation | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	195	165	151
Diabetes Care | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	6,805	5,761	4,756
Diabetes Care | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,633	2,129	1,633
Diabetes Care | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	$ 4,172	$ 3,632	$ 3,123