Quarterly report pursuant to Section 13 or 15(d)

Investments (Details 4)

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Investments (Details 4) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jul. 01, 2016
Jun. 30, 2017
Jul. 01, 2016
Dec. 31, 2016
Dec. 31, 2015
Available-for-sale and held-to-maturity securities by balance sheet line item            
Cash and cash equivalents $ 11,718 $ 9,647 $ 11,718 $ 9,647 $ 8,555 $ 7,309
Marketable securities 4,490   4,490   4,051  
Other investments 1,158   1,158   989  
Other assets 4,318   4,318   4,248  
Available-for-sale Securities Fair Value 8,042   8,042   6,413  
Proceeds from Sale of Available-for-sale Securities 3,456 2,301 6,550 6,817    
Available-for-sale Securities Gross Gains 14 10 40 110    
Available-for-sale Securities Gross Losses (7) $ (6) (14) $ (36)    
Available-for-sale Securities [Member]            
Available-for-sale and held-to-maturity securities by balance sheet line item            
Cash and cash equivalents 1,795   1,795   682  
Marketable securities 4,180   4,180   3,769  
Other investments 1,014   1,014   849  
Other assets 1,053   1,053   1,113  
Available-for-sale Securities Fair Value 8,042   8,042   6,413  
Solvency capital $ 1,047   $ 1,047   $ 985