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Other Financial Data (Other Charges) (Details) (USD $)
In Millions
3 Months Ended9 Months Ended
Oct. 01, 2011
Oct. 02, 2010
Oct. 01, 2011
Oct. 02, 2010
Other charges (income):    
Amortization of intangible assets$ 50$ 51$ 150$ 152
Legal matters and intellectual property reserve adjustments, net (39)48(68)
Reorganization of business charges10223235
Pension plan adjustments, net  (9) 
Other charges, total$ 60$ 34$ 221$ 119