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Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Identifiable Intangible Assets
December 31, 2022December 31, 2021
(In millions)Gross Carrying AmountAccumulated AmortizationGross Carrying AmountAccumulated Amortization
Definite-lived intangibles
Customer relationships$799 $392 $817 $347 
Estimated Future Amortization Expense for Amortizable Intangible Assets
Estimated future amortization expense for amortizable intangible assets for the next five years is as follows:
(In millions)20232024202520262027Thereafter
Estimated amortization expense$54 $54 $54 $53 $53 $139