XML 167 R94.htm IDEA: XBRL DOCUMENT v3.25.4
Retirement Benefits (Assumptions Used To Determine Net Periodic Benefit Cost) (Details)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase for 2024   4.00%  
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase for 2023     4.50%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate for 2024   6.42%  
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate, Pre-Medicare Plan Participants 7.00%    
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate, Post-Medicare Plan Participants 7.00%    
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year, Post-Medicare Plan Participants Adjustment 3.00% 3.00%  
Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate at measurement date 5.70% 5.25% 5.55%
Expected return on plan assets 6.75% 6.75% 6.75%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase 4.00% 3.50% 3.50%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate 5.50% 5.50% 5.00%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase for 2024   4.00%  
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate for 2024   5.50%  
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate for 2023     5.50%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate for 2025 5.20%    
Postretirement Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate at measurement date 5.70% 5.25% 5.55%
Expected return on plan assets 6.75% 6.75% 6.75%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase 4.00% 3.50% 3.50%
Medical cost trend rate (ultimate) 5.00% 5.00% 5.00%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase for 2024   4.00%  
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate, Pre-Medicare Plan Participants   6.93% 7.25%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate, Post-Medicare Plan Participants   6.50% 6.75%
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year, Post-Medicare Plan Participants Adjustment   3.00% 3.00%
Postretirement Health Coverage      
Defined Benefit Plan Disclosure [Line Items]      
Medical cost trend rate (initial) 2.50% 2.50%  
Medical cost trend rate (ultimate) 2.50% 2.50% 2.50%