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Postretirement and Other Benefits - Amounts Recognized in Accumulated Other Comprehensive Income (Details) - Pension Benefits $ in Millions	Dec. 31, 2020 USD ($)
United States
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated loss	$ 17.8
Prior service credit	0.0
Accumulated other comprehensive loss	17.8
France
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated loss	16.0
Prior service credit	(2.6)
Accumulated other comprehensive loss	$ 13.4

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- Definition

Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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- Definition

Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

+ References

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- Definition

Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

+ References

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