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Commitments and Contingencies - Legal, Environmental or Regulatory (Details)
 1 Months Ended 9 Months Ended 12 Months Ended 89 Months Ended
Nov. 01, 2022
USD ($)
Oct. 27, 2022
USD ($)
Sep. 30, 2021
USD ($)
May 31, 2015
bbl
Sep. 30, 2022
USD ($)
lawsuit
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
lawsuit
Dec. 31, 2021
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            
Aggregate total estimated costs         $ 730,000,000   $ 730,000,000      
Coverage limit under insurance program         500,000,000   500,000,000      
Recoveries from insurance carriers             265,000,000      
Total release costs probable of recovery         $ 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 | Consent Decree, 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 | Maximum | Judicial Ruling                    
Legal, Environmental or Regulatory Matters                    
Amount awarded to claimants by court     $ 150,000              
Line 901 Incident | Class Action Lawsuits                    
Legal, Environmental or Regulatory Matters                    
Number of cases filed | lawsuit             9      
Line 901 Incident | Class Action Lawsuits | Pending Litigation                    
Legal, Environmental or Regulatory Matters                    
Number of proceedings pending | lawsuit         2   2      
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 | Subsequent Event                    
Legal, Environmental or Regulatory Matters                    
Payments for legal settlements   $ 230,000,000                
Line 901 Incident | Unitholder Derivative Lawsuits | Pending Litigation                    
Legal, Environmental or Regulatory Matters                    
Number of proceedings pending | lawsuit         1   1      
Line 901 Incident | Unitholder Derivative Lawsuits | Settled Litigation | Subsequent Event                    
Legal, Environmental or Regulatory Matters                    
Litigation settlement agreement, payment of plaintiff's attorneys' fees by our insurers $ 1,000,000                  
Trade accounts payable and Other current liabilities | Line 901 Incident                    
Legal, Environmental or Regulatory Matters                    
Remaining undiscounted liability         $ 330,000,000   $ 330,000,000      
Trade accounts receivable and other receivables, net | Line 901 Incident                    
Legal, Environmental or Regulatory Matters                    
Receivable for remaining portion of release costs probable of recovery from insurance         240,000,000   240,000,000      
Excluding Line 901 Incident                    
Legal, Environmental or Regulatory Matters                    
Estimated undiscounted reserve for environmental liabilities         55,000,000   55,000,000 $ 57,000,000    
Estimated undiscounted reserve for environmental liabilities, short-term         $ 10,000,000   $ 10,000,000 $ 11,000,000    
Estimated undiscounted reserve for environmental liabilities, short-term [Extensible Enumeration]         Other current liabilities   Other current liabilities Other current liabilities    
Estimated undiscounted reserve for environmental liabilities, long-term         $ 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    
Amounts probable of recovery under insurance and from third parties under indemnification agreements         $ 6,000,000   $ 6,000,000 $ 11,000,000    
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