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Receivables
3 Months Ended
Mar. 31, 2020
Receivables [Abstract]  
Receivables
Receivables

 
March 31, 2020
 
December 31, 2019
Accounts receivable
$
1,164

 
$
1,162

Less: allowance for credit losses
(61
)
 
(62
)
Net trade receivables
1,103

 
1,100

Unbilled receivables
245

 
226

Miscellaneous receivables
206

 
202

Receivables, net
$
1,554

 
$
1,528