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Basis of Presentation (Tables)
3 Months Ended
Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Reconciliation of cash, cash equivalents and restricted cash The following table provides a reconciliation of Cash and cash equivalents and restricted cash reported in the Consolidated Balance Sheet to the total of the amounts in the Consolidated Statement of Cash Flows.
March 31, 2023December 31, 2022
(Dollars in millions)
Cash and cash equivalents$154 $273 
Restricted cash included in Other current assets46 35 
Cash, cash equivalents and restricted cash in the statement of cash flows$200 $308