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
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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- Definition

Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

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-Publisher FASB
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Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

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Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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