Condensed Consolidated Statements of Operations (Parenthetical) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 28, 2013
Jun. 29, 2012
Jun. 28, 2013
Jun. 29, 2012
Income Statement [Abstract]        
Defined benefit plan adjustments, tax $ 2.2   $ (2.2)  
Change in fair value of derivatives, tax $ 0.8 $ 3.0 [1] $ 0.4 $ 0.4 [1]
[1] See Note 23 - Restatement of Condensed Consolidated Financial Statements