v3.25.2
Commitments and Contingencies - Schedule of Loss Contingencies by Contingency (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Sep. 30, 2024
Loss Contingencies [Line Items]    
Reserve for environmental liabilities, current $ 23 $ 32
Reserve for environmental liabilities, noncurrent 170 179
Total reserves for environmental liabilities 193 211
Total asbestos-related liabilities 395 408
Total asbestos-related assets 328 334
Insurance Settlements Receivable, Asbestos-Related 44 47
Net asbestos-related liabilities 67 74
Restricted    
Total self-insured liabilities 384 351
Insurance receivables, current 5 5
Insurance receivables, noncurrent 13 13
Total insurance receivables 18 18
Asbestos Issue    
Loss Contingencies [Line Items]    
Total asbestos-related assets 284 287
Restricted    
Cash 6 6
Investments 278 281
Other current liabilities    
Loss Contingencies [Line Items]    
Total asbestos-related liabilities 58 58
Restricted    
Total self-insured liabilities 96 92
Other noncurrent liabilities    
Loss Contingencies [Line Items]    
Total asbestos-related liabilities 337 350
Restricted    
Total self-insured liabilities 256 239
Other current assets    
Loss Contingencies [Line Items]    
Total asbestos-related assets 14 14
Other noncurrent assets    
Loss Contingencies [Line Items]    
Total asbestos-related assets 314 320
Accrued compensation and benefits    
Restricted    
Total self-insured liabilities $ 32 $ 20