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Receivables
6 Months Ended
Jun. 30, 2020
Receivables [Abstract]  
Receivables Receivables
June 30, 2020December 31, 2019
Accounts receivable$1,194  $1,162  
Less: allowance for credit losses(64) (62) 
Net trade receivables1,130  1,100  
Unbilled receivables254  226  
Miscellaneous receivables220  202  
Receivables, net$1,604  $1,528