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Schedule II - Valuation and Qualifying Accounts (Tables)
12 Months Ended
Dec. 31, 2022
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule of Valuation and Qualifying Accounts Disclosure
SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS AND RESERVES
Additions
 Balance at Beginning of PeriodCharged to Costs and ExpensesDeductionsOther ActivityBalance at End of Period
 (in millions)
December 31, 2022:
Allowance for doubtful accounts$37 $27 $(12)$— $52 
Tax valuation allowance (a)$766 $57 $(83)$16 $756 
December 31, 2021:
Allowance for doubtful accounts$40 $22 $(24)$(1)$37 
Tax valuation allowance (a)$832 $25 $(78)$(13)$766 
December 31, 2020:
Allowance for doubtful accounts$37 $39 $(39)$$40 
Tax valuation allowance (a)$1,075 $84 $(333)$$832 
(a)Additions Charged to Costs and Expenses and Deductions are primarily related to taxable losses for which the tax benefit has been reserved.