XML 109 R81.htm IDEA: XBRL DOCUMENT v3.24.0.1
Asset Retirement Obligations and Accrued Environmental Costs - Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Site Contingency [Line Items]    
Accrued environmental costs $ 184 $ 182
Maximum number of years accrued environmental liabilities will be paid over 30 years  
Expected expenditures for acquired environmental obligations, weighted-average discount factor rate 5.00%  
Total environmental accrual included in balance sheet $ 116  
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Asset Retirement Obligations and Accrued Environmental Cost Non Current  
Accrued environmental costs discounted $ 151  
Cleanup Remediation Activities    
Site Contingency [Line Items]    
Accrued environmental costs 112 107
Corporate and Other Environmental Liabilities    
Site Contingency [Line Items]    
Accrued environmental costs 55 59
Federal Comprehensive Environmental Response Compensation and Liability Act or Similar State Laws    
Site Contingency [Line Items]    
Accrued environmental costs $ 17 $ 16