Segment Data - Revenues by Geographic Areas (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Revenues	$ 4,878	$ 4,641	$ 14,285	$ 14,109
Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	2,434	2,191	6,949	6,465
Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Revenues	1,226	1,309	3,803	4,277
Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	1,218	1,142	3,533	3,367
United States
Segment Reporting Information [Line Items]
Revenues	2,772	2,643	8,235	8,014
United States | Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	1,400	1,219	4,042	3,602
United States | Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Revenues	546	646	1,772	2,136
United States | Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	826	777	2,421	2,276
International
Segment Reporting Information [Line Items]
Revenues	2,106	1,998	6,050	6,095
International | Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	1,033	971	2,907	2,863
International | Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Revenues	680	663	2,031	2,140
International | Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	392	364	1,112	1,091
Medication Delivery Solutions | Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	1,086	1,061	3,195	3,207
Medication Delivery Solutions | United States | Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	628	621	1,863	1,831
Medication Delivery Solutions | International | Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	459	439	1,332	1,375
Medication Management Solutions | Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	754	607	2,184	1,838
Medication Management Solutions | United States | Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	587	463	1,701	1,408
Medication Management Solutions | International | Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	167	144	483	430
Pharmaceutical Systems | Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	594	523	1,570	1,420
Pharmaceutical Systems | United States | Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	186	135	478	363
Pharmaceutical Systems | International | Operating Segments | Medical
Segment Reporting Information [Line Items]
Revenues	408	388	1,092	1,057
Integrated Diagnostic Solutions | Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Revenues	858	961	2,699	3,255
Integrated Diagnostic Solutions | United States | Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Revenues	398	499	1,327	1,732
Integrated Diagnostic Solutions | International | Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Revenues	460	461	1,371	1,524
Biosciences | Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Revenues	368	348	1,104	1,022
Biosciences | United States | Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Revenues	148	147	444	405
Biosciences | International | Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Revenues	220	201	660	617
Surgery | Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	388	352	1,131	1,053
Surgery | United States | Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	298	274	880	824
Surgery | International | Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	90	77	252	229
Peripheral Intervention | Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	481	463	1,383	1,327
Peripheral Intervention | United States | Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	256	255	748	712
Peripheral Intervention | International | Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	225	208	635	615
Urology and Critical Care | Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	349	326	1,019	987
Urology and Critical Care | United States | Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	272	248	794	740
Urology and Critical Care | International | Operating Segments | Interventional
Segment Reporting Information [Line Items]
Revenues	$ 77	$ 79	$ 225	$ 247