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Defined Contribution and Defined Benefit Retirement - Schedule of Plans for which Accumulated Benefit Obligations Exceeds Plan Assets (Detail) - Defined Benefit Pension Plans - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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U.S. |  |
Plans for which the ABO exceeds plan assets: |  |
Projected benefit obligations | $ 57.6 | $ 63.0
Accumulated benefit obligations | 57.6 | 63.0
Fair value of plan assets | 43.2 | 46.5
Foreign |  |
Plans for which the ABO exceeds plan assets: |  |
Projected benefit obligations | 605.0 | 625.1
Accumulated benefit obligations | 585.0 | 603.8
Fair value of plan assets | $ 346.3 | $ 375.0

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