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PENSION, POST-RETIREMENT AND POST-EMPLOYMENT PLANS - Fair Value of Plan Assets by Asset Category (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Disclosure    
Total $ 163.6 $ 223.7
Fair Value, Inputs, Level 1, 2 and 3    
Defined Benefit Plan Disclosure    
Total 92.6 110.7
Assets using net asset value (or NAV) as a practical expedient    
Defined Benefit Plan Disclosure    
Total 71.0 113.0
Derivatives | Level 2    
Defined Benefit Plan Disclosure    
Total (0.8) 4.9
Exchange-traded funds holding domestic securities | Level 1    
Defined Benefit Plan Disclosure    
Total 10.7 0.0
Foreign bonds | Level 2    
Defined Benefit Plan Disclosure    
Total 1.9 1.9
Mutual funds holding U.S. Treasury securities | Level 1    
Defined Benefit Plan Disclosure    
Total 22.2 26.0
Mutual funds holding fixed income securities | Level 1    
Defined Benefit Plan Disclosure    
Total 15.4 20.1
U.S. Treasury bonds | Level 2    
Defined Benefit Plan Disclosure    
Total 37.4 51.7
Cash and cash equivalents | Level 1    
Defined Benefit Plan Disclosure    
Total $ 5.8 $ 6.1