Quarterly report pursuant to Section 13 or 15(d)

Investments (Details 5)

v3.8.0.1
Investments (Details 5) - USD ($)
$ in Millions
Mar. 30, 2018
Dec. 31, 2017
Investments [Abstracts]    
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis $ 1,171  
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value 1,214  
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis 4,366  
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value 4,443  
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis 102  
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value 113  
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis 311  
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value 307  
Available-for-sale Securities, Amortized Cost Basis 5,950  
Available-for-sale Securities Fair Value 6,077  
Available-for-sale Securities [Member]    
Debt securities, by type    
Solvency Funds of Insurance Captive $ 1,176 $ 1,159
Equity Securities [Member]    
Investments [Abstracts]    
Available-for-sale Securities Fair Value   $ 1,895