v3.22.4
Other Liabilities - Workforce Reduction and Environmental Liabilities (Details) - USD ($)
$ in Millions
 3 Months Ended
Dec. 31, 2020
Dec. 31, 2022
Dec. 31, 2021
Other Liabilities      
Total amounts accrued for workforce reductions   $ 701 $ 1,359
Charge for structural actions $ 1,472    
Total amounts accrued for non-ARO environmental liabilities   $ 271 $ 248
Amounts accrued for non-ARO environmental liabilities, Balance Sheet location   Other accrued expenses and liabilities Other accrued expenses and liabilities
Total amounts accrued for ARO liabilities   $ 107 $ 119