Receivables, Loans, Notes Receivable, and Others (Tables)

12 Months Ended

Dec. 31, 2020

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable

Accounts receivable, net consisted of the following:

(dollars in millions)	2020		2019
U.S. government contracts (including foreign military sales)	$	1,039	$	551
Other customers	8,761		8,446
Allowance for expected credit losses	(546)		(254)
Total accounts receivable, net	$	9,254	$	8,743

Accounts Receivable, Allowance for Credit Loss

The changes in the allowance for expected credit losses related to Accounts receivable were as follows:

(dollars in millions)	2020
Balance as of December 31, 2019	$	254
Current period provision for expected credit losses(1)	277
Write-offs charged against the allowance for expected credit losses	(5)
Other, net(2)	20
Balance as of December 31, 2020	$	546

(1)    The current provision for expected credit losses for 2020 includes $248 million of reserves driven by customer bankruptcies and additional reserves for credit losses primarily due to the current economic environment primarily caused by the COVID-19 pandemic.

(2)    Other includes $34 million of impact related to the January 1, 2020 adoption of ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.