Quarterly report pursuant to Section 13 or 15(d)

Investments, Available-for-Sale Investments (Detail)

v3.8.0.1
Investments, Available-for-Sale Investments (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Dec. 31, 2016
Available-for-sale Securities [Abstract]          
Fair Value $ 11,305   $ 11,305    
Adjusted Cost, Total 13,399   13,399   $ 14,344
Gross Unrealized Gains, Total 3,979   3,979   3,372
Gross Unrealized Losses, Total (14)   (14)   (34)
Fair Value, Total 17,364   17,364   17,682
Available-for-sale Securities, sale Proceeds 2,900 $ 195 4,700 $ 4,000  
Available-for-sale Securities, Gross Realized Gains 927 41 2,000 538  
Due in 1 year or less, Fair Value 3,314   3,314    
Due in 1-2 years, Fair Value 1,573   1,573    
Due in 2-5 years, Fair Value 2,200   2,200    
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value 71   71    
Instruments not due at a single maturity date, Fair Value 4,147   4,147    
Other than Temporary Impairment Losses, Investments 10 $ 48 613 $ 137  
Corporate Debt Securities [Member]          
Available-for-sale Securities [Abstract]          
Adjusted Cost 2,603   2,603   3,847
Gross Unrealized Gains 12   12   4
Gross Unrealized Losses (7)   (7)   (14)
Fair Value 2,608   2,608   3,837
Fixed Income Securities [Member]          
Available-for-sale Securities [Abstract]          
Adjusted Cost 7,709   7,709   6,098
Gross Unrealized Gains 6   6   5
Gross Unrealized Losses (4)   (4)   (11)
Fair Value 7,711   7,711   6,092
Government Debt [Member]          
Available-for-sale Securities [Abstract]          
Adjusted Cost 986   986   1,581
Gross Unrealized Gains 3   3   0
Gross Unrealized Losses (3)   (3)   (8)
Fair Value 986   986   1,573
Marketable Equity Securities [Member]          
Available-for-sale Securities [Abstract]          
Adjusted Cost 2,101   2,101   2,818
Gross Unrealized Gains 3,958   3,958   3,363
Gross Unrealized Losses 0   0   (1)
Fair Value $ 6,059   6,059   $ 6,180
Cloudera, Inc [Member]          
Available-for-sale Securities [Abstract]          
Other than Temporary Impairment Losses, Investments     $ 278