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Pension Plans and Postretirement Benefits (Postretirement Funded Status) (Details) - Postretirement Plans - USD ($)
$ in Millions
Jan. 03, 2016
Dec. 28, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]    
Funded status $ (10.7) $ (12.8)
Unrecognized net (gain) loss (4.2) (3.1)
Amount recognized in balance sheet (14.9) (15.9)
Accrued postretirement benefits (long-term) (9.6) (11.6)
Accrued pension obligation short-term (1.1) (1.2)
Accumulated other comprehensive income (4.2) (3.1)
Net amount recognized, before tax effect $ (14.9) $ (15.9)