XML 133 R120.htm IDEA: XBRL DOCUMENT v3.22.4
Benefit Plans (Actuarial Assumptions for Net Cost or Benefit) (Details)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 2.75% 2.35% 3.15%
Expected long term rate of return 6.25% 6.75% 7.25%
Interest crediting rate 3.00% 3.00% 5.00%
Postretirement Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate 2.25% 1.60% 2.30%