XML 66 R55.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Commitments and Contingencies (Details)
 1 Months Ended 3 Months Ended 9 Months Ended 17 Months Ended 107 Months Ended
Oct. 27, 2022
USD ($)
Oct. 14, 2020
USD ($)
Sep. 30, 2021
USD ($)
May 31, 2015
bbl
Mar. 31, 2024
USD ($)
Mar. 31, 2023
USD ($)
Sep. 20, 2022
USD ($)
Mar. 31, 2024
USD ($)
Mar. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Apr. 25, 2019
USD ($)
Sep. 07, 2018
count
Line 901 Incident                        
Legal, Environmental or Regulatory Matters                        
Estimated size of release (in bbl) | bbl       2,934                
Estimated size of release to reach Pacific Ocean (in bbl) | bbl       598                
Recoveries from insurance carriers                 $ 280,000,000      
Aggregate total estimated costs         $ 750,000,000     $ 750,000,000 750,000,000      
Significant costs related to legal and environmental remediation matters         0 $ 0            
Total release costs probable of recovery         505,000,000     505,000,000 505,000,000      
Line 901 Incident | Civil Penalties | Judicial Ruling                        
Legal, Environmental or Regulatory Matters                        
Amount paid to plaintiff   $ 24,000,000                    
Line 901 Incident | Compensation for Injuries to, Destruction of, Loss of Use of, Natural Resources | Judicial Ruling                        
Legal, Environmental or Regulatory Matters                        
Amount paid to plaintiff   $ 22,325,000                    
Line 901 Incident | May 2016 Indictment                        
Legal, Environmental or Regulatory Matters                        
Number of felony discharges found guilty | count                       1
Number of misdemeanor charges found guilty | count                       8
Number of misdemeanor charges found guilty, reporting | count                       1
Number of misdemeanor charges found guilty, strict liability discharge | count                       1
Number of misdemeanor charges found guilty, strict liability animal takings | count                       6
Number of misdemeanor charges found not guilty, strict liability animal takings | count                       1
Line 901 Incident | May 2016 Indictment | Judicial Ruling                        
Legal, Environmental or Regulatory Matters                        
Fines or penalties assessed                     $ 3,350,000  
Line 901 Incident | May 2016 Indictment | Judicial Ruling | Maximum                        
Legal, Environmental or Regulatory Matters                        
Amount awarded to claimants by court     $ 150,000                  
Line 901 Incident | Class Action Lawsuit Claim of Damages | Pending Litigation                        
Legal, Environmental or Regulatory Matters                        
Litigation settlement agreement amount, subject to approval             $ 230,000,000          
Line 901 Incident | Class Action Lawsuit Claim of Damages | Settled Litigation                        
Legal, Environmental or Regulatory Matters                        
Payments for legal settlements $ 230,000,000                      
Line 901 2015 Insurance Program                        
Legal, Environmental or Regulatory Matters                        
Recoveries from insurance carriers                 275,000,000      
Coverage limit under insurance program         500,000,000     500,000,000 500,000,000      
Exceeded coverage limit under insurance program         250,000,000     250,000,000 250,000,000      
Claim for Reimbursement From Insurance                        
Legal, Environmental or Regulatory Matters                        
Recoveries from insurance carriers               3,600,000        
Receivable for remaining portion of release costs probable of recovery from insurance         225,000,000     225,000,000 225,000,000      
Denial of Insurance Coverage                        
Legal, Environmental or Regulatory Matters                        
Receivable for remaining portion of release costs probable of recovery from insurance         185,000,000     185,000,000 185,000,000      
Not Yet Accepted Nor Denied of Insurance Coverage                        
Legal, Environmental or Regulatory Matters                        
Receivable for remaining portion of release costs probable of recovery from insurance         40,000,000     40,000,000 40,000,000      
Arbitration Proceedings Against Insurers                        
Legal, Environmental or Regulatory Matters                        
Receivable for remaining portion of release costs probable of recovery from insurance         225,000,000     225,000,000 225,000,000      
Other long-term assets, net | Line 901 Incident                        
Legal, Environmental or Regulatory Matters                        
Receivable for remaining portion of release costs probable of recovery from insurance         225,000,000     225,000,000 225,000,000      
Current Liabilities | Line 901 Incident                        
Legal, Environmental or Regulatory Matters                        
Remaining undiscounted liability         90,000,000     90,000,000 90,000,000      
Excluding Line 901 Incident                        
Legal, Environmental or Regulatory Matters                        
Estimated undiscounted reserve for environmental liabilities         56,000,000     56,000,000 56,000,000 $ 56,000,000    
Estimated undiscounted reserve for environmental liabilities, short-term         $ 11,000,000     $ 11,000,000 $ 11,000,000 $ 10,000,000    
Estimated undiscounted reserve for environmental liabilities, short-term [Extensible Enumeration]         Other current liabilities     Other current liabilities Other current liabilities Other current liabilities    
Estimated undiscounted reserve for environmental liabilities, long-term         $ 45,000,000     $ 45,000,000 $ 45,000,000 $ 46,000,000    
Estimated undiscounted reserve for environmental liabilities, long-term [Extensible Enumeration]         Other long-term liabilities and deferred credits     Other long-term liabilities and deferred credits Other long-term liabilities and deferred credits Other long-term liabilities and deferred credits    
Amounts probable of recovery under insurance and from third parties under indemnification agreements         $ 4,000,000     $ 4,000,000 $ 4,000,000 $ 4,000,000    
Excluding Line 901 Incident | Other long-term assets, net                        
Legal, Environmental or Regulatory Matters                        
Amounts probable of recovery under insurance and from third parties under indemnification agreements         $ 1,000,000     $ 1,000,000 $ 1,000,000 $ 1,000,000