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Pensions and Other Postretirement Benefits ABO in Excess of Plan Assets (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Information for pension plans with accumulated benefit obligation in excess of plan assets |  |
Projected benefit obligations | $ 39.1 | $ 39.2
Accumulated benefit obligations | 39.2 | 37.5
Fair value of plan assets | $ 4.7 | $ 5.0

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