Segment Data - Additional Information (Detail) $ in Millions	12 Months Ended
	Sep. 30, 2021 USD ($) customer segment	Sep. 30, 2020 USD ($) customer	Sep. 30, 2019 USD ($) customer
Segment Reporting Information [Line Items]
Number of principal business segments (segments) | segment	3
Number of customers accounted for 10% or more of revenues (customers) | customer	0	0	0
Revenues	$ 20,248	$ 17,117	$ 17,290
Product Liability Accrual, Period Expense	361
Gain (Loss) on Disposition of Business	0	0	336
United States
Segment Reporting Information [Line Items]
Revenues	10,969	9,716	9,730
Non-US
Segment Reporting Information [Line Items]
Revenues	9,279	7,401	7,560
Advanced Bioprocessing
Segment Reporting Information [Line Items]
Gain (Loss) on Disposition of Business			336
Medical
Segment Reporting Information [Line Items]
Inventory Recall Expense	56	244	75
Asset Impairment Charges		41
Life Sciences
Segment Reporting Information [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)		57
Interventional
Segment Reporting Information [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)			30
Other Operating Income (Expense)
Segment Reporting Information [Line Items]
Product Liability Accrual, Period Expense	361	$ 378	$ 914
Sale and Leaseback Transaction, Gain (Loss), Net	158
Separation and Related Costs	$ 35