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BENEFIT PLANS - Net Amounts Recognized, or Funded Status of Pension and Other Postretirement Benefit Plans (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Amounts recognized in the statements of financial position consist of: |  |
Long-term liabilities | $ (130.7) | $ (118.9)
Pension Benefits |  |
Amounts recognized in the statements of financial position consist of: |  |
Noncurrent assets | 0.0 | 1.0
Current liabilities | (6.8) | (6.6)
Long-term liabilities | (121.3) | (111.2)
Funded status of plan | (128.1) | (116.8)
Other Benefits |  |
Amounts recognized in the statements of financial position consist of: |  |
Noncurrent assets | 0.0 | 0.0
Current liabilities | (0.1) | (0.1)
Long-term liabilities | (4.8) | (3.2)
Funded status of plan | $ (4.9) | $ (3.3)

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