Quarterly report pursuant to Section 13 or 15(d)

Investments (Details 3)

v3.10.0.1
Investments (Details 3) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 28, 2018
Sep. 29, 2017
Sep. 28, 2018
Sep. 29, 2017
Dec. 31, 2017
Debt securities, by type          
Available-for-sale Securities, Amortized Cost Basis $ 5,809   $ 5,809    
Debt Securities, Trading, and Equity Securities, FV-NI, Cost 5,849   5,849   $ 5,794
Debt securities, gross unrealized gain 63   63   157
Debt securities, gross unrealized loss 63   63   27
Debt Securities 5,849   5,849   5,924
Equity Securities [Member]          
Debt securities, by type          
Available-for-sale Securities, Gross Realized Gains 11 $ 1 19 $ 6  
Trading Securities, Equity, Cost 40   40   12
Trading Securities, Unrealized Holding Gain     0   0
Trading Securities, Unrealized Holding Loss     0   0
Debt Securities, Trading, and Equity Securities, FV-NI 40   40   12
Available-for-sale Securities, Debt Securities 5,809   5,809   5,782
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax 63   63   157
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax 63   63   27
Available-for-sale Securities Fair Value 5,809   5,809   5,912
Available-for-sale Securities, Gross Realized Losses 8 3 21 9  
Proceeds from Sale of Available-for-sale Securities 3,421 $ 4,161 9,744 $ 10,571  
Available-for-sale Securities [Member]          
Debt securities, by type          
Debt Securities 5,809   5,809   5,912
Trading Securities [Member]          
Debt securities, by type          
Debt Securities 40   40   12
Cash and Cash Equivalents [Member] | Available-for-sale Securities [Member]          
Debt securities, by type          
Debt Securities 815   815   667
Cash and Cash Equivalents [Member] | Trading Securities [Member]          
Debt securities, by type          
Debt Securities 0   0   0
Marketable Securities [Member]          
Debt securities, by type          
Debt Securities, Trading, and Equity Securities, FV-NI         283
Available-for-sale Securities Fair Value         52
Marketable Securities [Member] | Available-for-sale Securities [Member]          
Debt securities, by type          
Debt Securities 4,709   4,709   4,970
Marketable Securities [Member] | Trading Securities [Member]          
Debt securities, by type          
Debt Securities 40   40   12
Other Assets          
Debt securities, by type          
Debt Securities, Trading, and Equity Securities, FV-NI         112
Available-for-sale Securities Fair Value         890
Other Assets | Available-for-sale Securities [Member]          
Debt securities, by type          
Debt Securities 285   285   275
Other Assets | Trading Securities [Member]          
Debt securities, by type          
Debt Securities $ 0   $ 0   $ 0