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Organization and Basis of Presentation (Tables)
6 Months Ended
Jun. 30, 2020
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 six months ended June 30, 2020 and for the year ended December 31, 2019 are as follows:
(In millions)
Balance, January 1, 2019$50  
Charged to income (1)
81  
Charged to other accounts (2)
47  
Write-offs(132) 
Balance, December 31, 2019$46  
Charged to income (3)
79  
Charged to other accounts (2)
24  
Write-offs(62) 
Balance, June 30, 2020$87  
(1) $25 million of which was deferred for future recovery in the twelve months ended December 31, 2019.
(2) Represents recoveries and reinstatements of accounts written off for uncollectible accounts.
(3) $35 million of which was deferred for future recovery in the first six months of 2020.