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Spin-Off of Embecta Corp. - Additional Information (Details) - USD ($) $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Apr. 01, 2022 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2020 | Mar. 31, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Cash Transfer Related to Spinoff Transaction |  | $ 265 | $ 0 | $ 0 |
Spin-off of Embecta (See Note 2) |  | 251 |  |  |
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Disposal Groups, Including Discontinued Operation, Consideration, Cash |  |  |  |  | $ 1,266
Disposal Group, Including Discontinued Operation, Other Expense |  | 30 |  |  |
Disposal Group, Including Discontinued Operation, Debt | $ 1,650 |  |  |  |
Cash Transfer Related to Spinoff Transaction | 265 |  |  |  |
Notes 6.750% due February 15, 2030 |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Debt instrument, face amount | 200 |  |  |  | $ 200
Foreign Currency Translation |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Spin-off of Embecta (See Note 2) |  | $ 251 |  |  |
Foreign Currency Translation | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Spin-off of Embecta (See Note 2) | $ 251 |  |  |  |

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