Segment Data - Financial Information for Company's Segments (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Acquisition-related integration and restructuring expense	$ 192	$ 179	$ 299
Income from Continuing Operations Before Income Taxes	1,783	1,692	414
Total Capital Expenditures	973	1,194	769
Total Depreciation and Amortization	2,229	2,230	2,115
Operating Segments
Segment Reporting Information [Line Items]
Income from Continuing Operations Before Income Taxes	5,006	5,311	3,806
Operating Segments | Medical
Segment Reporting Information [Line Items]
Income from Continuing Operations Before Income Taxes	2,215	1,985	1,675
Total Capital Expenditures	602	740	435
Total Depreciation and Amortization	1,144	1,097	1,064
Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Income from Continuing Operations Before Income Taxes	1,710	2,391	1,405
Total Capital Expenditures	213	297	192
Total Depreciation and Amortization	283	352	286
Operating Segments | Interventional
Segment Reporting Information [Line Items]
Income from Continuing Operations Before Income Taxes	1,081	933	724
Total Capital Expenditures	130	125	119
Total Depreciation and Amortization	789	769	750
Segment Reconciling Items
Segment Reporting Information [Line Items]
Acquisition-related integration and restructuring expense	173	179	299
Net interest expense	(382)	(460)	(521)
Corporate and All Other
Segment Reporting Information [Line Items]
Income from Continuing Operations Before Income Taxes	(2,668)	(2,981)	(2,573)
Total Capital Expenditures	28	32	22
Total Depreciation and Amortization	$ 13	$ 12	$ 14