Segment Data - Financial Information for Company's Segments (Detail) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Integration and restructuring expense	$ (75)	$ (44)
Income Before Income Taxes	359	481
Operating Segments
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	1,198	1,288
Operating Segments | Medical
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	535	554
Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	372	433
Operating Segments | Interventional
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	291	301
Segment Reconciling Items
Segment Reporting Information [Line Items]
Integration and restructuring expense	(75)	(44)
Net interest expense	(77)	(96)
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	$ (688)	$ (667)