XML 136 R120.htm IDEA: XBRL DOCUMENT v3.22.4
Post-retirement and Similar Obligations - Schedule of Weighted-Average Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost (Details)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate - benefit obligations 5.18% 2.85%  
Rate of compensation increase - benefit obligations 2.99% 3.53%  
Interest crediting rate 2.87% 2.87%  
Discount rate - net periodic benefit 2.85% 2.34% 3.01%
Expected long-term return on plan assets 6.33% 7.30% 7.30%
Rate of compensation increase - net periodic benefit 3.53% 3.52% 3.66%
Postretirement Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Discount rate - benefit obligations 5.12% 2.66%  
Rate of compensation increase - benefit obligations 3.00% 3.50%  
Discount rate - net periodic benefit 2.66% 2.19% 2.99%
Expected long-term return on plan assets 4.66% 4.05% 5.09%
Rate of compensation increase - net periodic benefit 3.50% 3.50% 3.48%