ACCOUNTS RECEIVABLE - NET

3 Months Ended

Mar. 31, 2019

Receivables [Abstract]

Accounts Receivable - Net

Note 8. Accounts Receivable - Net

	March 31, 2019			December 31, 2018
Trade	$	7,499		$	7,705
Less - Allowance for doubtful accounts	(192		)	(197		)
	$	7,307		$	7,508

Trade receivables include $1,696 million and $1,543 million of unbilled balances under long-term contracts as of March 31, 2019 and December 31, 2018. These amounts are billed in accordance with the terms of the customer contracts to which they relate.