v3.26.1
Commitments and Contingencies (Guarantees) (Details)
$ in Millions
Mar. 31, 2026
USD ($)
Other Guarantees  
Loss Contingencies [Line Items]  
Maximum potential undiscounted payments $ 185
LOOP and LOCAP LLC | Guarantee of Indebtedness of Others | Financial Guarantee  
Loss Contingencies [Line Items]  
Maximum potential undiscounted payments $ 210
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 $ 78