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Condensed Consolidated Statements Of Stockholders' Equity (Parenthetical) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 29, 2012
Oct. 01, 2011
Sep. 29, 2012
Oct. 01, 2011
Statement of Stockholders' Equity [Abstract]        
Net unrealized gain on securities, tax $ (5) $ (6) $ 1 $ 0
Foreign currency translation adjustments, tax 21 3 11 (2)
Amortization of retirement benefits adjustments, tax 14 19 65 55
Remeasurement of retirement benefits, tax 52 0 52 9
Net gain on derivative hedging instruments, tax $ 0 $ (1) $ 0 $ (1)