Quarterly report pursuant to Section 13 or 15(d)

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

v3.4.0.3
Cash and Investments, Available-for-Sale Investments (Detail) - USD ($)
$ in Millions
3 Months Ended
Apr. 02, 2016
Mar. 28, 2015
Dec. 26, 2015
Available-for-sale Securities [Abstract]      
Fair Value $ 7,792    
Adjusted Cost, Total 11,026   $ 19,311
Gross Unrealized Gains, Total 3,156   2,710
Gross Unrealized Losses, Total (13)   (14)
Fair Value, Total 14,169   22,007
Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds 2,900 $ 43  
Available-for-sale Securities, Gross Realized Gains 86 43  
Due in 1 year or less, Fair Value 4,229    
Due in 1-2 years, Fair Value 1,834    
Due in 2-5 years, Fair Value 1,264    
Instruments not due at a single maturity date, Fair Value 465    
Cash and Cash Equivalents [Member]      
Available-for-sale Securities [Abstract]      
Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds 127 $ 0  
Asset-Backed Securities [Member]      
Available-for-sale Securities [Abstract]      
Adjusted Cost 0   5
Gross Unrealized Gains 0   0
Gross Unrealized Losses 0   (1)
Fair Value 0   4
Corporate Debt Securities [Member]      
Available-for-sale Securities [Abstract]      
Adjusted Cost 3,133   4,164
Gross Unrealized Gains 5   3
Gross Unrealized Losses (9)   (10)
Fair Value 3,129   4,157
Financial Institution Instruments [Member]      
Available-for-sale Securities [Abstract]      
Adjusted Cost 4,196   11,140
Gross Unrealized Gains 3   1
Gross Unrealized Losses (3)   (2)
Fair Value 4,196   11,139
Government Debt [Member]      
Available-for-sale Securities [Abstract]      
Adjusted Cost 467   748
Gross Unrealized Gains 0   0
Gross Unrealized Losses 0   (1)
Fair Value 467   747
Marketable Equity Securities [Member]      
Available-for-sale Securities [Abstract]      
Adjusted Cost 3,230   3,254
Gross Unrealized Gains 3,148   2,706
Gross Unrealized Losses (1)   0
Fair Value 6,377   $ 5,960
Debt Securities [Member]      
Available-for-sale Securities [Abstract]      
Adjusted Cost 7,796    
Due in 1 year or less, Cost 4,230    
Due in 1-2 years, Cost 1,835    
Due in 2-5 years, Cost 1,266    
Instruments not due at a single maturity date, Cost $ 465