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Cost Reduction Plans (Tables)
12 Months Ended
Dec. 31, 2020
Restructuring and Related Activities [Abstract]  
Summary of the CIP Reserve Activity The following table summarizes the Company's severance and retention liabilities related to CIP activity:
SeveranceRetentionTotal
(In millions)
December 31, 2017$30.0 $3.4 $33.4 
Accrual0.2 5.7 5.9 
Payments(12.1)(4.0)(16.1)
December 31, 201818.1 5.1 23.2 
Accrual— 5.5 5.5 
Payments(12.9)(6.0)(18.9)
December 31, 20195.2 4.6 9.8 
Accrual/other(1.0)1.8 0.8 
Payments(3.3)(5.5)(8.8)
December 31, 2020$0.9 $0.9 $1.8