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Acquisitions (Details) - USD ($) $ in Millions			12 Months Ended
	Sep. 03, 2024	Jul. 18, 2022	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Business Acquisition [Line Items]
Goodwill			$ 26,465	$ 24,522	$ 24,621
Advanced Patient Monitoring
Business Acquisition [Line Items]
Business combination. consideration transferred	$ 3,911
Business combination, recognized identifiable assets acquired and liabilities assumed, other net assets	(714)
Goodwill	1,833
Business Acquisition, Goodwill, Expected Tax Deductible Amount			1,100
Revenues			$ 21,069	$ 20,258
Advanced Patient Monitoring | Developed technology
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles	714
Advanced Patient Monitoring | Customer relationships
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles	$ 650
Parata Systems
Business Acquisition [Line Items]
Business combination. consideration transferred		$ 1,548
Business combination, recognized identifiable assets acquired and liabilities assumed, other net assets		(1)
Goodwill		759
Parata Systems | Developed technology
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles		628
Parata Systems | Customer relationships
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, finite-lived intangibles		$ 161

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