Quarterly report pursuant to Section 13 or 15(d)

Cash and Investments, Trading Assets (Detail)

v2.4.0.8
Cash and Investments, Trading Assets (Detail) (Marketable Debt Instruments [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 28, 2013
Sep. 29, 2012
Sep. 28, 2013
Sep. 29, 2012
Marketable Debt Instruments [Member]
       
Schedule Of Trading Securities And Other Trading Assets [Line Items]        
Trading Securities, Change in Unrealized Holding Gain (Loss) $ 96 $ 50 $ 43 $ 35
Net gains (losses) on derivatives related to trading securities $ (97) $ (39) $ (40) $ (11)