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Intangible Assets - Reconciliation of Goodwill by Business Segment (Detail) $ in Millions	6 Months Ended
	Mar. 31, 2025 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 26,465
Purchase price allocation adjustments	56
Currency translation	(77)
Goodwill, ending balance	26,444
Medical
Goodwill [Roll Forward]
Goodwill, beginning balance	12,832
Purchase price allocation adjustments	56
Currency translation	(30)
Goodwill, ending balance	12,858
Life Sciences
Goodwill [Roll Forward]
Goodwill, beginning balance	904
Purchase price allocation adjustments	0
Currency translation	(5)
Goodwill, ending balance	899
Interventional
Goodwill [Roll Forward]
Goodwill, beginning balance	12,729
Purchase price allocation adjustments	0
Currency translation	(42)
Goodwill, ending balance	$ 12,687

X

- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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X

- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) asset representing future economic benefit from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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- Definition

Amount of increase (decrease) from measurement period adjustment of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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