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Segment Data - Financial Information for Company's Segments (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting Information [Line Items]
Integration, restructuring and transaction expense	$ (97)	$ (112)	$ (279)	$ (288)
Income Before Income Taxes	703	500	1,371	1,491
Medical | Cost of Sales
Segment Reporting Information [Line Items]
Inventory recall expense			98
Inventory Step Up Amortization			336
Operating Segments
Segment Reporting Information [Line Items]
Total Segment Operating Income	1,647	1,505	4,229	4,168
Operating Segments | Medical
Segment Reporting Information [Line Items]
Total Segment Operating Income	880	753	1,922	1,950
Operating Segments | Life Sciences
Segment Reporting Information [Line Items]
Total Segment Operating Income	391	387	1,152	1,174
Operating Segments | Interventional
Segment Reporting Information [Line Items]
Total Segment Operating Income	376	365	1,155	1,044
Segment Reconciling Items
Segment Reporting Information [Line Items]
Integration, restructuring and transaction expense	(97)	(112)	(279)	(288)
Net interest expense	(147)	(89)	(425)	(265)
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Total Segment Operating Income	$ (701)	$ (804)	$ (2,154)	$ (2,124)

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