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Note 5 - Gross Carrying Amount and Accumulated Amortization by Major Intangible Asset Category (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Sep. 03, 2013
Finite Lived Intangible Assets [Line Items] |  |  |
Accumulated Amortization | $ 49 | $ 27 |
Intangible assets gross | 168 | 167 |
Intangible assets net | 119 | 140 |
Gross Carrying Amount |  |  | $ 9
Trade Names |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 46 | 46 |
Technology-Based Intangible Assets [Member] |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 83 | 83 |
Accumulated Amortization | 38 | 21 |
Intangible Assets Net | $ 45 | $ 62 |
Weighted-Average Amortization Period | 3 years | 4 years |
Customer-Related Intangible Assets [Member] |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 37 | $ 36 |
Accumulated Amortization | 11 | 6 |
Intangible Assets Net | $ 26 | $ 30 |
Weighted-Average Amortization Period | 7 years | 8 years |
Other Intangible Assets [Member] |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 2 | $ 2 |
Intangible Assets Net | $ 2 | $ 2 |
Weighted-Average Amortization Period | 21 years | 22 years |

X
- 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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + 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/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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