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ENVIRONMENTAL MATTERS AND ASSET RETIREMENT OBLIGATIONS (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Accrual for Environmental Loss Contingencies [Roll Forward]    
Beginning of period $ 281  
End of period 277 $ 281
Accrual for Environmental Loss Contingencies, Balance Sheet Classification [Abstract]    
Accrued Environmental Loss Contingencies, Current 10 20
Accrued Environmental Loss Contingencies, Noncurrent 267 261
Environmental Remediation [Member]    
Accrual for Environmental Loss Contingencies [Roll Forward]    
Beginning of period 253 257
Changes in estimates recognized in earnings and other 4 9
Cash reductions (8) (13)
End of period $ 249 253
Expected Payment Period of Environmental Contingencies approximately 30 years  
Environmental Remediation [Member] | Minimum [Member]    
Site Contingency [Line Items]    
Loss Contingency, Estimate of Possible Loss $ 249 253
Environmental Remediation [Member] | Maximum [Member]    
Site Contingency [Line Items]    
Loss Contingency, Estimate of Possible Loss 464 473
Environmental ARO [Member]    
Site Contingency [Line Items]    
Best Estimate Accrued to-date For Asset Retirement Obligation 28 28
Non Environmental ARO [Member]    
Site Contingency [Line Items]    
Best Estimate Accrued to-date For Asset Retirement Obligation $ 51 $ 51