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Debt, Activity Under Credit Facilities (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Accounts Receivable Sales Facility [Member] | Line of Credit [Member]    
Line of Credit Facility    
Borrowings, short-term credit facilities $ 1,200 $ 0
Repayments, short-term credit facilities (1,200) 0
DGD Revolver [Member] | Line of Credit [Member] | DGD [Member] | Variable Interest Entity, Primary Beneficiary [Member]    
Line of Credit Facility    
Borrowings, long-term credit facilities 659 100
Repayments, long-term credit facilities (659) 0
DGD Loan Agreement [Member] | Line of Credit [Member] | DGD [Member] | Variable Interest Entity, Primary Beneficiary [Member]    
Line of Credit Facility    
Borrowings, short-term credit facilities 25 0
Repayments, short-term credit facilities (50) 0
IEnova Revolver [Member] | Line of Credit [Member] | Central Mexico Terminals [Member] | Variable Interest Entity, Primary Beneficiary [Member]    
Line of Credit Facility    
Borrowings, long-term credit facilities 73 29
Repayments, long-term credit facilities $ (47) $ 0