Quarterly report pursuant to Section 13 or 15(d)

Cash and Investments, Available-for-Sale Investments (Detail)

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Cash and Investments, Available-for-Sale Investments (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 29, 2013
Jun. 30, 2012
Jun. 29, 2013
Jun. 30, 2012
Dec. 29, 2012
Available-For-Sale Investments [Abstract]          
Gross Unrealized Gains $ 2,030   $ 2,030   $ 1,079
Gross Unrealized Losses (17)   (17)   (5)
Fair Value 10,992   10,992    
Adjusted Cost, Total 14,340   14,340   12,927
Fair Value, Total 16,353   16,353   14,001
Due in 1 year or less, Cost 9,247   9,247    
Due in 1-2 years, Cost 1,213   1,213    
Due in 2-5 years, Cost 415   415    
Instruments not due at a single maturity date, Cost 112   112    
Cost, Total 10,987   10,987    
Due in 1 year or less, Fair Value 9,251   9,251    
Due in 1-2 years, Fair Value 1,220   1,220    
Due in 2-5 years, Fair Value 413   413    
Instruments not due at a single maturity date, Fair Value 108   108    
Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds 294 274 598 607  
Asset-Backed Securities [Member]
         
Available-For-Sale Investments [Abstract]          
Adjusted Cost 12   12   14
Gross Unrealized Gains 0   0   0
Gross Unrealized Losses (3)   (3)   (3)
Fair Value 9   9   11
Bank Deposits [Member]
         
Available-For-Sale Investments [Abstract]          
Adjusted Cost 2,068   2,068   1,417
Gross Unrealized Gains 3   3   1
Gross Unrealized Losses (1)   (1)   0
Fair Value 2,070   2,070   1,418
Commercial Paper [Member]
         
Available-For-Sale Investments [Abstract]          
Adjusted Cost 4,389   4,389   4,184
Gross Unrealized Gains 0   0   1
Gross Unrealized Losses 0   0   0
Fair Value 4,389   4,389   4,185
Corporate Bonds [Member]
         
Available-For-Sale Investments [Abstract]          
Adjusted Cost 2,624   2,624   635
Gross Unrealized Gains 14   14   8
Gross Unrealized Losses (5)   (5)   (1)
Fair Value 2,633   2,633   642
Government Bonds [Member]
         
Available-For-Sale Investments [Abstract]          
Adjusted Cost 1,794   1,794   2,235
Gross Unrealized Gains 0   0   0
Gross Unrealized Losses (2)   (2)   0
Fair Value 1,792   1,792   2,235
Marketable Equity Securities [Member]
         
Available-For-Sale Investments [Abstract]          
Gross Unrealized Gains 2,013   2,013   1,069
Gross Unrealized Losses (5)   (5)   (1)
Adjusted Cost 3,353   3,353   3,356
Fair Value 5,361   5,361   4,424
Money Market Fund Deposits [Member]
         
Available-For-Sale Investments [Abstract]          
Adjusted Cost 100   100   1,086
Gross Unrealized Gains 0   0   0
Gross Unrealized Losses (1)   (1)   0
Fair Value $ 99   $ 99   $ 1,086