Acquisitions and Divestitures (Pro Forma Information) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 28, 2013
Jun. 29, 2012
Jun. 28, 2013
Jun. 29, 2012
Business Combinations [Abstract]        
Revenue (As reported) $ 1,475.2   $ 2,924.7  
Net income applicable to common shareholders (As reported) 17.7   42.6  
Earnings per common share - assuming dilution (As reported) $ 0.35   $ 0.84  
Revenue (Pro Forma)   1,728.1   3,422.1
Net income applicable to common shareholders (Pro forma)   $ 19.7   $ 54.6
Earnings per common share - assuming dilution (Pro forma)   $ 0.39   $ 1.07