Revenue - Revenue by Sales Category (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net Sales	$ 40,109	$ 43,653	$ 43,075
Operating Segments
Segment Reporting Information [Line Items]
Net Sales	40,095	43,642	43,023
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Net Sales	14	11	52
United States
Segment Reporting Information [Line Items]
Net Sales	15,452	18,142	16,642
United States | Corporate, Non-Segment
Segment Reporting Information [Line Items]
Net Sales	14	11	34
International
Segment Reporting Information [Line Items]
Net Sales	24,657	25,511	26,433
International | Corporate, Non-Segment
Segment Reporting Information [Line Items]
Net Sales	0	0	18
Established Pharmaceutical Products | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	5,066	4,912	4,718
Established Pharmaceutical Products | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	0	0	0
Established Pharmaceutical Products | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	5,066	4,912	4,718
Nutritionals | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	8,154	7,459	8,294
Nutritionals | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	3,413	2,919	3,556
Nutritionals | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	4,741	4,540	4,738
Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	9,988	16,469	15,526
Diagnostics | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	4,329	8,531	7,011
Diagnostics | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	5,659	7,938	8,515
Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	16,887	14,802	14,485
Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	7,696	6,681	6,041
Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	9,191	8,121	8,444
Key Emerging Markets | Established Pharmaceutical Products | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	3,807	3,766	3,565
Key Emerging Markets | Established Pharmaceutical Products | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	0	0	0
Key Emerging Markets | Established Pharmaceutical Products | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	3,807	3,766	3,565
Other | Established Pharmaceutical Products | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,259	1,146	1,153
Other | Established Pharmaceutical Products | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	0	0	0
Other | Established Pharmaceutical Products | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,259	1,146	1,153
Pediatric Nutritionals | Nutritionals | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	3,934	3,481	4,298
Pediatric Nutritionals | Nutritionals | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,977	1,562	2,192
Pediatric Nutritionals | Nutritionals | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,957	1,919	2,106
Adult Nutritionals | Nutritionals | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	4,220	3,978	3,996
Adult Nutritionals | Nutritionals | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,436	1,357	1,364
Adult Nutritionals | Nutritionals | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,784	2,621	2,632
Core Laboratory | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	5,159	4,888	5,128
Core Laboratory | Diagnostics | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,243	1,137	1,145
Core Laboratory | Diagnostics | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	3,916	3,751	3,983
Molecular | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	574	995	1,427
Molecular | Diagnostics | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	172	370	566
Molecular | Diagnostics | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	402	625	861
Point of Care | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	565	525	536
Point of Care | Diagnostics | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	396	372	384
Point of Care | Diagnostics | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	169	153	152
Rapid Diagnostics | Diagnostics | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Net Sales		(115)	(118)
Rapid Diagnostics | Diagnostics | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	3,690	10,061	8,435
Rapid Diagnostics | Diagnostics | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,518	6,652	4,916
Rapid Diagnostics | Diagnostics | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,172	3,409	3,519
Rhythm Management | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,255	2,119	2,198
Rhythm Management | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,085	1,029	1,018
Rhythm Management | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,170	1,090	1,180
Electrophysiology | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,195	1,927	1,907
Electrophysiology | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,008	909	778
Electrophysiology | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,187	1,018	1,129
Heart Failure | Medical Devices | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Net Sales		115	118
Heart Failure | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,161	1,035	1,007
Heart Failure | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	888	809	772
Heart Failure | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	273	226	235
Vascular | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,681	2,483	2,654
Vascular | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	978	864	915
Vascular | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,703	1,619	1,739
Structural Heart | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,944	1,712	1,610
Structural Heart | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	883	818	730
Structural Heart | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	1,061	894	880
Neuromodulation | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	890	770	781
Neuromodulation | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	725	619	616
Neuromodulation | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	165	151	165
Diabetes Care | Medical Devices | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	5,761	4,756	4,328
Diabetes Care | Medical Devices | United States | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	2,129	1,633	1,212
Diabetes Care | Medical Devices | International | Operating Segments
Segment Reporting Information [Line Items]
Net Sales	$ 3,632	$ 3,123	$ 3,116