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Intangible Assets
 9 Months Ended
Sep. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets Intangible Assets
The following table summarizes intangible assets:
September 30, 2025December 31, 2024
(in millions)Gross Carrying AmountAccumulated AmortizationNet Carrying AmountGross Carrying AmountAccumulated AmortizationNet Carrying Amount
Customer relationships$267 $(222)$45 $261 $(211)$50 
Intellectual property and patents16 (13)3 15 (11)4 
Trademarks22 (18)4 21 (17)4 
Total$305 $(253)$52 $297 $(239)$58 
Intangible asset amortization expenses for the three and nine months ended September 30, 2025, reported within selling, general and administrative expenses within the Condensed Consolidated Statements of Operations, were $3 million and $9 million, respectively. Intangible asset amortization expenses for the three and nine months ended September 30, 2024, reported within selling, general and administrative expenses within the Condensed Consolidated Statements of Operations, were $4 million and $10 million,