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Intangible Assets - Reconciliation of Goodwill by Business Segment (Detail) $ in Millions	9 Months Ended
	Jun. 30, 2025 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 26,465
Acquisitions	4
Purchase price allocation adjustments	64
Currency translation	63
Goodwill, ending balance	26,597
Medical
Goodwill [Roll Forward]
Goodwill, beginning balance	12,832
Acquisitions	0
Purchase price allocation adjustments	64
Currency translation	31
Goodwill, ending balance	12,928
Life Sciences
Goodwill [Roll Forward]
Goodwill, beginning balance	904
Acquisitions	4
Purchase price allocation adjustments	0
Currency translation	4
Goodwill, ending balance	913
Interventional
Goodwill [Roll Forward]
Goodwill, beginning balance	12,729
Acquisitions	0
Purchase price allocation adjustments	0
Currency translation	27
Goodwill, ending balance	$ 12,756

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