XML 156 R115.htm IDEA: XBRL DOCUMENT v3.25.4
Commitments and Contingencies (Detail) - USD ($)
$ in Millions
1 Months Ended
Dec. 15, 2020
Jul. 31, 2020
Dec. 31, 2025
Dec. 31, 2024
Commitments And Contingencies [Line Items]        
Accrual for environmental loss contingencies     $ 21 $ 15
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]     Other Liabilities, Current, Other Long-term Liabilities Other Liabilities, Current, Other Long-term Liabilities
Loss Contingency, Damages Sought, Value   $ 187    
Loss Contingency, Damages Paid, Value $ 4      
Capital Addition Purchase Commitments        
Commitments And Contingencies [Line Items]        
Contractual commitments to acquire property, plant and equipment     $ 311  
Indirect Ownership Interest | Bakken Pipeline System | Crude Oil and Products Logistics [Member]        
Commitments And Contingencies [Line Items]        
Equity Method Investment, Ownership Percentage     9.19%  
Financial Guarantee | Bakken Pipeline System | Guarantee of Indebtedness of Others        
Commitments And Contingencies [Line Items]        
Guarantor Obligations, Maximum Exposure, Undiscounted     $ 78  
Performance Guarantee | WPC Parent, LLC        
Commitments And Contingencies [Line Items]        
Guarantor Obligations, Maximum Exposure, Undiscounted     $ 109