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Note 5 - Goodwill and Other Intangible Assets - Gross Carrying Amount and Accumulated Amortization by Major Intangible Asset Category (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Intangible assets, accumulated amortization | $ 101 | $ 97
Finite-lived intangible assets, net | 7 |
Intangible assets, gross carrying amount | 125 | 125
Intangible assets, net | 24 | 28
Trade Names [Member] |  |
Indefinite-lived intangible assets | 17 | 17
Technology-Based Intangible Assets [Member] |  |
Finite-lived intangible assets, gross carrying amount | 99 | 99
Intangible assets, accumulated amortization | 92 | 88
Finite-lived intangible assets, net | $ 7 | $ 11
Intangible assets, weighted average remaining amortization period (Year) | 2 years | 3 years
Customer-Related Intangible Assets [Member] |  |
Finite-lived intangible assets, gross carrying amount | $ 9 | $ 9
Intangible assets, accumulated amortization | 9 | 9
Finite-lived intangible assets, net | $ 0 | $ 0
Intangible assets, weighted average remaining amortization period (Year) | 0 years | 1 year

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 928 -SubTopic 340 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483147/928-340-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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- Definition Amount before accumulated amortization of intangible assets, excluding goodwill. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(15)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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