XML 146 R104.htm IDEA: XBRL DOCUMENT v3.22.0.1
PENSION PLANS (Asset Allocations) (Details) - Pension Plan - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS    
Asset allocations by asset category 100.00% 100.00%
Equity securities    
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS    
Asset allocations by asset category 0.00% 39.50%
Equity securities included the entity's common stock   $ 0.1
Debt Securities    
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS    
Asset allocations by asset category 85.90% 56.10%
Money market funds    
PENSION AND SUPPLEMENTAL EXECUTIVE RETIREMENT PLANS    
Asset allocations by asset category 14.10% 4.40%