Accounts Receivable, Net (Tables)

12 Months Ended

Dec. 31, 2021

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable

Accounts receivable, net consisted of the following as of December 31:

(dollars in millions)	2021		2020
Trade receivables	$	3,117	$	2,987
Unbilled receivables	109		104
Customer financing notes receivable	93		130
Miscellaneous receivables	88		88
	3,407		3,309
Less: allowance for expected credit losses	175		161
Balance	$	3,232	$	3,148

Accounts Receivable, Allowance for Credit Loss

The changes in allowance for credit losses related to Accounts receivable, net for the years ended December 31, 2021 and 2020 are as follows:

(dollars in millions)	2021		2020
Balance as of January 1	$	161	$	83
Impact of credit standard adoption	—		28
Provision for expected credit losses	37		40
Write-offs charged against the allowance for expected credit losses	(15)		(20)
Foreign exchange and other	(8)		30
Balance as of December 31	$	175	$	161