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Earnings Per Share (Narrative) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 29, 2013
Jun. 30, 2012
Jun. 29, 2013
Jun. 30, 2012
Earnings Per Share [Abstract]        
Antidilutive securities excluded from computation of earnings per share, amount 6.3 4.8 5.1 4.0
Antidilutive securities excluded from computation of earnings per share, exercise price, lower range limit $ 35.91 $ 27.62 $ 32.92 $ 25.80
Antidilutive securities excluded from computation of earnings per share, exercise price, upper range limit $ 49.43 $ 42.98 $ 49.43 $ 42.98