SEGMENT INFORMATION - Summary of Financial Information for Our Segments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Net sales	$ 3,812	$ 3,707	$ 7,404	$ 7,220
United States
Segment Reporting Information [Line Items]
Net sales	1,797	1,750	3,456	3,417
International
Segment Reporting Information [Line Items]
Net sales	2,015	1,957	3,948	3,803
Operating Segments | Medical Products and Therapies
Segment Reporting Information [Line Items]
Net sales	1,322	1,276	2,551	2,433
Operating Segments | Healthcare Systems and Technologies
Segment Reporting Information [Line Items]
Net sales	748	743	1,415	1,474
Operating Segments | Pharmaceuticals
Segment Reporting Information [Line Items]
Net sales	602	550	1,180	1,073
Operating Segments | Kidney Care
Segment Reporting Information [Line Items]
Net sales	1,118	1,116	2,220	2,188
Operating Segments | United States | Medical Products and Therapies
Segment Reporting Information [Line Items]
Net sales	729	720	1,402	1,378
Operating Segments | United States | Healthcare Systems and Technologies
Segment Reporting Information [Line Items]
Net sales	550	538	1,023	1,057
Operating Segments | United States | Pharmaceuticals
Segment Reporting Information [Line Items]
Net sales	197	182	388	355
Operating Segments | United States | Kidney Care
Segment Reporting Information [Line Items]
Net sales	305	294	616	587
Operating Segments | International | Medical Products and Therapies
Segment Reporting Information [Line Items]
Net sales	593	556	1,149	1,055
Operating Segments | International | Healthcare Systems and Technologies
Segment Reporting Information [Line Items]
Net sales	198	205	392	417
Operating Segments | International | Pharmaceuticals
Segment Reporting Information [Line Items]
Net sales	405	368	792	718
Operating Segments | International | Kidney Care
Segment Reporting Information [Line Items]
Net sales	813	822	1,604	1,601
Operating Segments | Infusion Therapies and Technologies | Medical Products and Therapies
Segment Reporting Information [Line Items]
Net sales	1,045	1,004	2,011	1,915
Operating Segments | Infusion Therapies and Technologies | United States | Medical Products and Therapies
Segment Reporting Information [Line Items]
Net sales	579	570	1,105	1,084
Operating Segments | Infusion Therapies and Technologies | International | Medical Products and Therapies
Segment Reporting Information [Line Items]
Net sales	466	434	906	831
Operating Segments | Advanced Surgery | Medical Products and Therapies
Segment Reporting Information [Line Items]
Net sales	277	272	540	518
Operating Segments | Advanced Surgery | United States | Medical Products and Therapies
Segment Reporting Information [Line Items]
Net sales	150	150	297	294
Operating Segments | Advanced Surgery | International | Medical Products and Therapies
Segment Reporting Information [Line Items]
Net sales	127	122	243	224
Operating Segments | Care and Connectivity Solutions | Healthcare Systems and Technologies
Segment Reporting Information [Line Items]
Net sales	452	436	854	865
Operating Segments | Care and Connectivity Solutions | United States | Healthcare Systems and Technologies
Segment Reporting Information [Line Items]
Net sales	332	311	610	609
Operating Segments | Care and Connectivity Solutions | International | Healthcare Systems and Technologies
Segment Reporting Information [Line Items]
Net sales	120	125	244	256
Operating Segments | Front Line Care | Healthcare Systems and Technologies
Segment Reporting Information [Line Items]
Net sales	296	307	561	609
Operating Segments | Front Line Care | United States | Healthcare Systems and Technologies
Segment Reporting Information [Line Items]
Net sales	218	227	413	448
Operating Segments | Front Line Care | International | Healthcare Systems and Technologies
Segment Reporting Information [Line Items]
Net sales	78	80	148	161
Operating Segments | Injectables and Anesthesia | Pharmaceuticals
Segment Reporting Information [Line Items]
Net sales	341	332	669	637
Operating Segments | Injectables and Anesthesia | United States | Pharmaceuticals
Segment Reporting Information [Line Items]
Net sales	197	182	388	355
Operating Segments | Injectables and Anesthesia | International | Pharmaceuticals
Segment Reporting Information [Line Items]
Net sales	144	150	281	282
Operating Segments | Drug Compounding | Pharmaceuticals
Segment Reporting Information [Line Items]
Net sales	261	218	511	436
Operating Segments | Drug Compounding | United States | Pharmaceuticals
Segment Reporting Information [Line Items]
Net sales	0	0	0	0
Operating Segments | Drug Compounding | International | Pharmaceuticals
Segment Reporting Information [Line Items]
Net sales	261	218	511	436
Operating Segments | Chronic Renal | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Net sales		(8)		(16)
Operating Segments | Chronic Renal | Kidney Care
Segment Reporting Information [Line Items]
Net sales	917	928	1,805	1,812
Operating Segments | Chronic Renal | United States | Kidney Care
Segment Reporting Information [Line Items]
Net sales	228	230	454	459
Operating Segments | Chronic Renal | International | Kidney Care
Segment Reporting Information [Line Items]
Net sales	689	698	1,351	1,353
Operating Segments | Acute Therapies | Revision of Prior Period, Reclassification, Adjustment
Segment Reporting Information [Line Items]
Net sales		8		16
Operating Segments | Acute Therapies | Kidney Care
Segment Reporting Information [Line Items]
Net sales	201	188	415	376
Operating Segments | Acute Therapies | United States | Kidney Care
Segment Reporting Information [Line Items]
Net sales	77	64	162	128
Operating Segments | Acute Therapies | International | Kidney Care
Segment Reporting Information [Line Items]
Net sales	124	124	253	248
Other
Segment Reporting Information [Line Items]
Net sales	22	22	38	52
Other | United States
Segment Reporting Information [Line Items]
Net sales	16	16	27	40
Other | International
Segment Reporting Information [Line Items]
Net sales	$ 6	$ 6	$ 11	$ 12