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SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
 12 Months Ended
Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
For the Years Ended December 31, 2022, 2021 and 2020
(In millions)
Balance at
Beginning of
Period
Charged to
Costs and
Expenses
Charged to
Other Accounts
Deductions
Balance at
End of Period
Allowance for credit losses, deducted from accounts receivable
     
Year Ended December 31, 2022$683 $11 $— $(561)
(a)
$133 
Year Ended December 31, 202167 698 112 (194)
(a)
683 
Year Ended December 31, 202043 108 — (84)
(a)
67 
Income tax valuation allowance, deducted from deferred tax assets
      
Year Ended December 31, 2022$248 $(20)$(4)$— $224 
Year Ended December 31, 2021266 (29)11 — 248 
Year Ended December 31, 2020242 24 — — 

266 
(a) Represents principally net amounts charged as uncollectible