Quarterly report pursuant to Section 13 or 15(d)

Trading Assets (Detail)

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Trading Assets (Detail) (USD $)
In Millions
3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jul. 02, 2011
Dec. 25, 2010
Jun. 26, 2010
Marketable Equity Securities [Member]
Jun. 26, 2010
Marketable Equity Securities [Member]
Jul. 02, 2011
Marketable Debt Instruments [Member]
Jun. 26, 2010
Marketable Debt Instruments [Member]
Jul. 02, 2011
Marketable Debt Instruments [Member]
Jun. 26, 2010
Marketable Debt Instruments [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]                
Marketable debt instruments $ 3,796 $ 4,705            
Marketable equity securities 10 388            
Total trading assets 3,806 5,093            
Net gains (losses) on derivatives related to trading securities         (13) 143 (53) 191
Net gains (losses) on trading assets, held     $ 38 $ 38 $ 16 $ (173) $ 66 $ (234)