Debt	9 Months Ended
	Jun. 30, 2023
Debt Disclosure [Abstract]
Debt	DebtIn February 2023, the Company issued $800 million of 4.693% notes due February 13, 2028. Also in February 2023, Becton Dickinson Euro Finance S.à r.l., a private limited liability company (société à responsabilité limitée), which is an indirect, wholly-owned finance subsidiary of the Company, issued €800 million ($868 million) of 3.553% Euro-denominated notes due September 13, 2029 (the “BD Finance Notes”). The BD Finance Notes are fully and unconditionally guaranteed on a senior unsecured basis by the Company. No other of the Company's subsidiaries provide any guarantees with respect to the BD Finance Notes. The indenture covenants included a limitation on liens and a restriction on sale and leasebacks, change of control and consolidation, merger and sale of assets covenants. These covenants are subject to a number of exceptions, limitations and qualifications. The indenture does not restrict the Company, Becton Dickinson Euro Finance S.à r.l., or any other of the Company's subsidiaries from incurring additional debt or other liabilities, including additional senior debt. Additionally, the indenture does not restrict Becton Dickinson Euro Finance S.à r.l. and the Company from granting security interests over its assets.