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Other Contingencies and Commitments (Details)
$ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
Location
guaranty
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Guarantees      
Number of guarantees | guaranty 1    
Guarantee for payments under terminal use agreements $ 175    
Long-Term Unconditional Purchase Obligations and Commitments, Including Throughput and Take-or-Pay Agreements      
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in year one 897    
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in year two 959    
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in year three 941    
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in year four 1,002    
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in year five 1,053    
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements after year five 6,489    
Total payments under long term unconditional purchase obligations and commitments including throughput and Take-or-Pay agreements $ 1,866 $ 861 $ 514
Environmental      
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Accrued Liabilities, Current, Deferred credits and other noncurrent obligations    
Environmental reserve balance $ 868    
Sites with potential remediation activities (in sites) | Location 143    
Upstream      
Environmental      
Environmental reserve $ 222    
United States | Downstream      
Environmental      
Environmental reserve 384    
International | Downstream      
Environmental      
Environmental reserve $ 44    
Affiliates      
Guarantees      
Term of guarantee for payments under terminal use agreement (in years) 5 years    
Other Obligations      
Long-Term Unconditional Purchase Obligations and Commitments, Including Throughput and Take-or-Pay Agreements      
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in year one $ 349    
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in year two 425    
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in year three 322    
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in year four 358    
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements in year five 311    
Long term unconditional purchase obligations and commitments, including throughout and take or pay agreements after year five 1,233    
Sites with Potential Remediation Activities      
Environmental      
Environmental reserve 218    
Environmental Reserve Less Environmental Reserve for Sites with Potential Remediation Activities      
Environmental      
Environmental reserve $ 650