XML 37 R77.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Litigation, Claims and Contingencies - Additional Information (Details)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2019
USD ($)
WasteTreatmentorDisposalSite
Facility
ServiceStationProperty
Jun. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Sep. 30, 2016
USD ($)
Environmental Remediation Costs Recognized [Abstract]              
Number of waste treatment or disposal sites were company is identified as a potentially responsible party under the superfund or similar state laws | WasteTreatmentorDisposalSite 80            
Number of current and former operating facilities subject to various environmental laws | Facility 113            
Total number of service station properties subject to various environmental laws | ServiceStationProperty 1,225            
Number of service stations being actively remediated | ServiceStationProperty 29            
Accrual for environmental loss contingencies $ 179   $ 184 $ 186 $ 187    
Accrued environmental loss contingencies, noncurrent 137     143      
Recorded third-party environmental recoveries receivable 12     13      
Recorded third-party environmental recoveries, noncurrent $ 11     12      
Maximum reserve for remediation reserve related to any one site (in hundredths) 15.00%            
Minimum [Member]              
Asbestos litigation cost projection [Abstract]              
Number of Years Included in Asbestos Assumption 40 years            
Maximum [Member]              
Asbestos litigation cost projection [Abstract]              
Number of Years Included in Asbestos Assumption 50 years            
Environmental Remediation Costs Recognized [Abstract]              
Environmental exit costs, reasonably possible additional loss $ 430            
Ashland [Member]              
Asbestos claims [Roll Forward]              
Increase (Decrease) in asbestos-related claims 0 $ 1 0 1 (8) $ 36  
Total reserves for asbestos claims 342 [1]   369 [1] 352 [1] 380 [1] 419 [1] $ 415
Movement in Loss Contingency Receivable, Increase (Decrease) [Roll Forward]              
Insurance receivable 122 [2]   139 [2] 123 [2] 140 [2] 155 [2] 151
Receivable adjustment 0 (5) 0 (5) (5) 15  
Asbestos litigation cost projection [Abstract]              
Possible total future litigation defense and claim settlement costs 600            
Total reserves for asbestos claims 342 [1]   369 [1] 352 [1] 380 [1] 419 [1] 415
Hercules [Member]              
Asbestos claims [Roll Forward]              
Increase (Decrease) in asbestos-related claims 0 (10) 0 (10) (19) 16  
Total reserves for asbestos claims 247 [3]   276 [3] 252 [3] 282 [3] 323 [3] 321
Movement in Loss Contingency Receivable, Increase (Decrease) [Roll Forward]              
Insurance receivable 49   54 49 54 68 63
Receivable adjustment 0 $ (5) 0 (5) (14) 5  
Asbestos litigation cost projection [Abstract]              
Possible total future litigation defense and claim settlement costs 450            
Total reserves for asbestos claims $ 247 [3]   $ 276 [3] $ 252 [3] $ 282 [3] $ 323 [3] $ 321
[1] Included $28 million classified in accrued expenses and other liabilities on the Condensed Consolidated Balance Sheets as of both December 31, 2019 and September 30, 2019.
[2] Included $15 million classified in accounts receivable on the Condensed Consolidated Balance Sheets as of both December 31, 2019 and September 30, 2019
[3] Included $21 million classified in accrued expenses and other liabilities on the Condensed Consolidated Balance Sheets as of both December 31, 2019 and September 30, 2019.