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Commitments and Contingencies (Guarantees) (Details)
$ in Millions
Mar. 31, 2023
USD ($)
Other Guarantees  
Loss Contingencies [Line Items]  
Maximum potential undiscounted payments $ 160
LOOP and LOCAP LLC | Guarantee of Indebtedness of Others | Financial Guarantee  
Loss Contingencies [Line Items]  
Maximum potential undiscounted payments $ 171
Bakken Pipeline System | Indirect  
Loss Contingencies [Line Items]  
Ownership percentage 9.19%
Bakken Pipeline System | Guarantee of Indebtedness of Others | Financial Guarantee  
Loss Contingencies [Line Items]  
Maximum potential undiscounted payments $ 170
Crowley Blue Water Partners  
Loss Contingencies [Line Items]  
Ownership percentage 50.00%
Crowley Blue Water Partners | Guarantee of Indebtedness of Others | Financial Guarantee  
Loss Contingencies [Line Items]  
Maximum potential undiscounted payments $ 97