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POSTRETIREMENT BENEFIT PLANS Postretirement Textuals (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Defined Benefit Plan, Plan Assets, Contributions by Employer |  |  | $ 4.2 | $ 7.1
Reclassification of Postretirement Costs from AOCI, Net of Tax | $ 0.9 | $ 0.5 | 1.8 | $ 1.1
Minimum [Member] |  |  |  |
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year | 8.0 |  | 8.0 |
Maximum [Member] |  |  |  |
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year | $ 10.0 |  | $ 10.0 |

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