v3.26.1
Commitments and Contingencies (Unaudited) (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Site Contingency [Line Items]    
Accrual for Environmental Remediation Costs $ 552 $ 547
Recorded Third-Party Environmental Recoveries, Amount 508 502
Accrued Environmental Loss Contingencies, Current 215  
Accrued Environmental Loss Contingencies, Noncurrent 337  
Recorded Third-Party Environmental Recoveries, Current 200  
Recorded Third-Party Environmental Recoveries, Noncurrent 308  
Loss Contingency, Range of Possible Loss, Portion Not Accrued 402 $ 380
Financial Arrangements    
Standby Unused Letters Of Credit and bank guarantees 611  
Surety Bond Outstanding $ 271  
Line of Credit Facility    
Line of Credit Facility, Covenant Compliance the company was in compliance with all covenants under its credit agreements.  
Line of Credit Facility, Covenant Terms, Maximum Debt to Capitalization Ratio The company also cannot permit the ratio of its debt to capitalization (as set forth in the credit agreement) to exceed 65 percent.  
Line of Credit Facility [Line Items]    
Line of Credit Facility, Covenant Compliance the company was in compliance with all covenants under its credit agreements.  
Line of Credit Facility, Covenant Terms, Maximum Debt to Capitalization Ratio The company also cannot permit the ratio of its debt to capitalization (as set forth in the credit agreement) to exceed 65 percent.  
2025 Five Year Term    
Line of Credit Facility    
Line of Credit Facility, Maximum Borrowing Capacity $ 3,000  
Line of Credit Outstanding 0  
Line of Credit Facility [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 3,000  
Line of Credit Outstanding 0  
Commercial Paper [Member]    
Line of Credit Facility    
Commercial Paper, Maximum Borrowing Capacity 3,000  
Commercial Paper 0  
Line of Credit Facility [Line Items]    
Commercial Paper, Maximum Borrowing Capacity 3,000  
Commercial Paper $ 0