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LONG-TERM DEBT AND REVOLVING CREDIT AGREEMENTS (Tables)
9 Months Ended
Sep. 30, 2023
Debt Disclosure [Abstract]  
Schedule of Senior Notes Payable
The following table summarizes our senior notes payable at September 30, 2023 and December 31, 2022:
(Dollars in millions)Annual contractual interest rateEffective interest ratePrincipal amountDeferred issuance costsLess: current portionLong-term debt, noncurrent
September 30, 2023
December 31, 2022
2029 Notes3.50 %3.67 %$500 $(4)$— $496 $496 
2031 Notes7.125 %7.290 %$400 $(5)$— $395 $—