XML 144 R120.htm IDEA: XBRL DOCUMENT v3.22.0.1
PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Other Postretirement Benefits) (Details) - Other Postretirement Benefit Plans
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]      
Discount rate - benefit obligations 2.85% 2.38%  
Discount rate - net periodic costs 2.38% 3.19% 4.01%
Health Care Cost Trend Rate Assumed for Next Year - benefit obligations 6.50% 6.75%  
Health Care Cost Trend Rate Assumed for Next Year - net periodic costs 6.75% 6.25% 6.50%
Rate to which the cost trend rate is assumed to decline (the ultimate health care cost trend rate) - benefit obligations 5.00% 5.00%  
Rate to which the cost trend rate is assumed to decline (the ultimate health care cost trend rate) - net periodic costs 5.00% 5.00% 5.00%
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate to Calculate PBO, End of Year 2028 2028  
Year that the Rate Reaches the Ultimate Health Care Cost Trend Rate 2028 2025 2025