Annual report pursuant to Section 13 and 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Annual Expense (Income) Related to Retirement Plans) (Details)

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PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Annual Expense (Income) Related to Retirement Plans) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Pension Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined benefit plans $ 22.4 $ 12.7 $ 18.0
Defined contribution pension plans 3.4 3.1 2.9
Total 23.3 9.9 14.8
Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined benefit plans $ (2.5) $ (5.9) $ (6.1)