Allowance for Losses on Financial Assets Allowance for Losses on Financial Assets (Tables)

3 Months Ended

Mar. 31, 2022

Allowance for Losses on Financial Assets [Abstract]

Financial Assets, Allowance for Credit Loss

The changes in allowances for expected credit losses for the three months ended March 31, 2022 and 2021 consisted of the following:

	Accounts receivable	Unbilled receivables	Other current assets	Customer financing	Other assets	Total
Balance at January 1, 2021	($444)	($129)	($72)	($17)	($140)	($802)
Changes in estimates	10	(1)	(6)		(42)	(39)
Write-offs	1					1
Balance at March 31, 2021	($433)	($130)	($78)	($17)	($182)	($840)
Balance at January 1, 2022	($390)	($91)	($62)	($18)	($186)	($747)
Changes in estimates	(7)	15	5	(48)	(22)	(57)
Write-offs	6					6
Recoveries	1					1
Balance at March 31, 2022	($390)	($76)	($57)	($66)	($208)	($797)