Organization and Basis of Presentation (Tables)

3 Months Ended

Mar. 31, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Activity in the allowance for uncollectible accounts on customer receivables

Activity in the allowance for uncollectible accounts on customer receivables for the three months ended March 31, 2021 and for the year ended December 31, 2020 are as follows:

	(In millions)
Balance, January 1, 2020	$	46
Charged to income (1)	174
Charged to other accounts (2)	46
Write-offs	(102)
Balance, December 31, 2020	$	164
Charged to income	5
Charged to other accounts (2)	11
Write-offs	(19)
Balance, March 31, 2021	$	161

(1) $103 million of which was deferred for future recovery in the twelve months ended December 31, 2020.

(2) Represents recoveries and reinstatements of accounts written off for uncollectible accounts.