Loans and finance receivables (Tables)
12 Months Ended
Dec. 31, 2018
Insurance and Other [Member]  
Schedule of receivables

Other receivables of insurance and other businesses are comprised of the following (in millions).

 

     December 31,  
     2018     2017  

Insurance premiums receivable

   $   12,452     $   11,058  

Reinsurance recoverable on unpaid losses

     3,060       3,201  

Trade receivables

     12,617       12,031  

Other

     3,823       3,464  

Allowances for uncollectible accounts

     (388     (362
  

 

 

   

 

 

 
   $ 31,564     $ 29,392  
  

 

 

   

 

 

 

 

Railroad, Utilities and Energy [Member]  
Schedule of receivables

Receivables of our railroad and our utilities and energy businesses are comprised of the following (in millions).

 

     December 31,  
     2018     2017  

Trade receivables

   $   3,433     $     3,346  

Other

     362       313  

Allowances for uncollectible accounts

     (129     (128
  

 

 

   

 

 

 
   $ 3,666     $ 3,531  
  

 

 

   

 

 

 

 

Loans and Finance Receivables [Member]  
Schedule of receivables

Loans and finance receivables are summarized as follows (in millions).

 

     December 31,  
     2018     2017  

Loans and finance receivables before allowances and discounts

    $ 16,622      $ 14,126  

Allowances for uncollectible loans

     (177     (180

Unamortized acquisition discounts

     (165     (198
  

 

 

   

 

 

 
    $   16,280      $   13,748