Basis of Presentation	6 Months Ended
Basis of Presentation	Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and, in the opinion of the management of Becton, Dickinson and Company (the "Company" or "BD"), include all adjustments which are of a normal recurring nature, necessary for a fair presentation of the financial position and the results of operations and cash flows for the periods presented. However, the financial statements do not include all information and accompanying notes required for a presentation in accordance with U.S. generally accepted accounting principles ("U.S. GAAP"). These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s 2021 Annual Report on Form 10-K. Within the financial statements and tables presented, certain columns and rows may not add due to the use of rounded numbers for disclosure purposes. Percentages and earnings per share amounts presented are calculated from the underlying amounts. The results of operations for the interim periods are not necessarily indicative of the results of operations to be expected for the full year. Spin-Off of Diabetes Care Business On April 1, 2022, the Company completed the spin-off of its Diabetes Care business as a separate publicly traded company named Embecta Corp. (“Embecta”) through a distribution of Embecta’s publicly traded common stock to BD’s shareholders of record as of the close of business on March 22, 2022 (the “record date”). The Company distributed one share of Embecta common stock for every five common shares of BD outstanding as of the record date. Shareholders received cash in lieu of fractional shares of Embecta common stock. The spin-off is expected to qualify as a tax-free transaction for U.S. federal income tax purposes. Embecta is an independent, publicly traded company focused on diabetes management, and BD retains no ownership interest. Embecta’s common stock is listed on NASDAQ under the ticker symbol “EMBC”. The historical financial results of Embecta are included in these condensed consolidated financial statements. Subsequent to the spin-off, and in future filings, the historical results of the Diabetes Care business will be reflected as discontinued operations in the Company’s consolidated financial statements. Disclosures pertaining to Embecta’s issuance of debt in connection with the spin-off are provided in Note 12. In connection with the spin-off, the Company and Embecta entered into various agreements to effect the spin-off and provide a framework for the relationship between the Company and Embecta after the spin-off. Such agreements include the separation and distribution agreement, as well as the following ongoing agreements: a cannula supply agreement, an intellectual property matters agreement, a transition services agreement, manufacturing and supply agreements, a lease agreement, a distribution agreement to support commercial operations, a logistics services agreement and other agreements including an employee matters agreement and a tax matters agreement. Under these agreements the Company will continue to provide certain products and services to Embecta following the spin-off.