Accounts, Notes and Other Receivables—Net

12 Months Ended

Dec. 31, 2020

Receivables [Abstract]

Accounts, Notes and Other Receivables—Net

Note 8. Accounts, Notes and Other Receivables—Net

	December 31,
	2021		2020
	(Dollars in millions)
Trade receivables	$	553	$	625
Notes receivables	121		152
Other receivables	78		77
	$	752	$	854
Less—Allowance for expected credit losses	(5)		(13)
	$	747	$	841

Trade receivables include $63 million and $61 million of unbilled balances as of December 31, 2021 and 2020, respectively.