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ENVIRONMENTAL MATTERS (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Accrual for Environmental Loss Contingencies [Roll Forward]      
Beginning of period $ 274    
End of period $ 284 $ 274  
Expected Payment Period of Environmental Contingencies 30 years    
Accrual for Environmental Loss Contingencies [Abstract]      
Accrued Environmental Loss Contingencies, Current $ 10 $ 10  
Accrued Environmental Loss Contingencies, Noncurrent Other long-term liabilities Other long-term liabilities  
Environmental Costs [Abstract]      
Cash expenditures related to environmental protection and improvement $ 314 $ 300 $ 281
Environmental capital expenditures 65 60 38
Environmental Remediation [Member]      
Accrual for Environmental Loss Contingencies [Roll Forward]      
Beginning of period 245 253  
Changes in estimates recorded to earnings and other 19 6  
Cash reductions (12) (14)  
End of period 252 245 $ 253
Letters of Credit Outstanding, Amount 160    
Shared Sites [Member]      
Site Contingency [Line Items]      
Maximum funding required for environmental shared sites 325    
Amounts paid for Environmental Remediation to Date for Shared Sites 123    
Loss Contingency, Estimate of Possible Loss 208    
Environmental ARO [Member]      
Accrual for Environmental Loss Contingencies [Roll Forward]      
Best Estimate Accrued to-date For Asset Retirement Obligation 32 29  
Non Environmental ARO [Member]      
Accrual for Environmental Loss Contingencies [Roll Forward]      
Best Estimate Accrued to-date For Asset Retirement Obligation 51 51  
Minimum [Member] | Environmental Remediation [Member]      
Site Contingency [Line Items]      
Loss Contingency, Estimate of Possible Loss 252 245  
Maximum [Member] | Environmental Remediation [Member]      
Site Contingency [Line Items]      
Loss Contingency, Estimate of Possible Loss $ 497 $ 457