v3.25.3
Segment Reporting (Tables)
 9 Months Ended
Sep. 30, 2025
Segment Reporting [Abstract]  
Revenue from External Customers by Geographic Areas
Sales to external customers, which are attributed to geographic regions based on customer location, were as follows for the three and nine months ended September 30, 2025 and 2024:

Sales to External Customers by Geographic RegionThree Months EndedNine Months Ended
In millionsSep 30, 2025Sep 30, 2024Sep 30, 2025Sep 30, 2024
United States$28 $31 $76 $86 
Asia Pacific1 1 4 1 
Total sales to external customers$29 $32 $80 $87 
Long-Lived Assets by Geographic Areas
Long-lived assets, which are attributed to geographic regions based on asset location, were as follows at September 30, 2025 and December 31, 2024:

Long-Lived Assets by Geographic RegionSep 30, 2025Dec 31, 2024
In millions
United States$1,117 $1,093 
Asia Pacific16 18 
Rest of World9 10 
Total long-lived assets$1,142 $1,121 
Schedule of Other Segment Information
The following table summarizes depreciation and amortization expense for the three and nine months ended September 30, 2025 and 2024:

Depreciation and Amortization ExpenseThree Months EndedNine Months Ended
Sep 30, 2025Sep 30, 2024Sep 30, 2025Sep 30, 2024
In millions
Depreciation and amortization expense$45 $36 $121 $105