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EQUITY METHOD INTERESTS - Rollforward Activity (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Movement In Equity Method Interests [Roll Forward]        
Equity method interest, beginning balance [1]   $ 1,365    
Capital contributions   0 $ 28 $ 327
Impairment $ (160) 0 (160) 0
Equity method interest, ending balance [1] 1,365 624 1,365  
Gulf Coast Express Pipeline LLC        
Movement In Equity Method Interests [Roll Forward]        
Impairment     0  
EPIC Crude Holdings, LP        
Movement In Equity Method Interests [Roll Forward]        
Impairment     (160)  
Permian Highway Pipeline LLC        
Movement In Equity Method Interests [Roll Forward]        
Impairment     0  
Shin Oak Pipeline (Breviloba, LLC)        
Movement In Equity Method Interests [Roll Forward]        
Equity method interest, beginning balance   461    
Impairment     0  
Equity method interest, ending balance 461   461  
ALTM        
Movement In Equity Method Interests [Roll Forward]        
Equity method interest, beginning balance   1,365 1,555  
Capital contributions   2 28  
Distributions   (21) (173)  
Equity income (loss), net   21 114  
Accumulated other comprehensive loss     1  
Deconsolidation of Altus   (1,367)    
Equity method interest, ending balance 1,365 0 1,365 1,555
ALTM | Gulf Coast Express Pipeline LLC        
Movement In Equity Method Interests [Roll Forward]        
Equity method interest, beginning balance   274 284  
Capital contributions   0 0  
Distributions   (5) (50)  
Equity income (loss), net   8 40  
Accumulated other comprehensive loss     0  
Deconsolidation of Altus   (277)    
Equity method interest, ending balance 274 0 274 284
ALTM | EPIC Crude Holdings, LP        
Movement In Equity Method Interests [Roll Forward]        
Equity method interest, beginning balance   0 176  
Capital contributions   2 2  
Distributions   0 0  
Equity income (loss), net   (2) (19)  
Accumulated other comprehensive loss     1  
Deconsolidation of Altus   0    
Equity method interest, ending balance 0 0 0 176
ALTM | Permian Highway Pipeline LLC        
Movement In Equity Method Interests [Roll Forward]        
Equity method interest, beginning balance   630 615  
Capital contributions   0 26  
Distributions   (9) (74)  
Equity income (loss), net   10 63  
Accumulated other comprehensive loss     0  
Deconsolidation of Altus   (631)    
Equity method interest, ending balance 630 0 630 615
ALTM | Shin Oak Pipeline (Breviloba, LLC)        
Movement In Equity Method Interests [Roll Forward]        
Equity method interest, beginning balance   461 480  
Capital contributions   0 0  
Distributions   (7) (49)  
Equity income (loss), net   5 30  
Accumulated other comprehensive loss     0  
Deconsolidation of Altus   (459)    
Equity method interest, ending balance $ 461 $ 0 $ 461 $ 480
[1] (1)    The Altus VIE amounts are disclosed as of December 31, 2021. All Altus balances were deconsolidated as of February 22, 2022. Refer to Note 1—Summary of Significant Accounting Policies and Note 2—Acquisitions and Divestitures for further detail.