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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