ACCOUNTS RECEIVABLES

12 Months Ended

Dec. 31, 2019

Accounts Receivable, after Allowance for Credit Loss, Current [Abstract]

Accounts, Notes and Other Receivables

Accounts Receivable

	December 31,
	2019			2018
Trade	$	7,639		$	7,705
Less—Allowance for doubtful accounts	(146		)	(197		)
	$	7,493		$	7,508

Trade Receivables includes $1,586 million and $1,543 million of unbilled balances under long-term contracts as of December 31, 2019 and 2018. These amounts are billed in accordance with the terms of customer contracts to which they relate.