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Note 4 - Intangible Assets - Components of Other Intangible Assets (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Amortizable intangible assets, accumulated impairment and amortization | $ (84) | $ (72)
Intangible Assets, Gross (Excluding Goodwill) | 158 | 152
Intangible Assets, Net (Excluding Goodwill) | 74 | 80
Trademarks and Trade Names 1 [Member] |  |
Non-amortizable intangible assets, gross | 39 | 38
Non-amortizable intangible assets, net carrying amount | $ 39 | 38
Core Technology [Member] |  |
Weighted average useful life (Year) | 10 years |
Amortizable intangible assets, gross carrying amount | $ 50 | 47
Amortizable intangible assets, accumulated impairment and amortization | (30) | (25)
Amortizable intangible assets, net carrying amount | $ 20 | 22
Trademarks and Trade Names [Member] |  |
Weighted average useful life (Year) | 16 years |
Amortizable intangible assets, gross carrying amount | $ 3 | 2
Amortizable intangible assets, accumulated impairment and amortization | (3) | (2)
Amortizable intangible assets, net carrying amount |  |
Customer Relationships [Member] |  |
Weighted average useful life (Year) | 10 years |
Amortizable intangible assets, gross carrying amount | $ 66 | 65
Amortizable intangible assets, accumulated impairment and amortization | (51) | (45)
Amortizable intangible assets, net carrying amount | $ 15 | $ 20

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