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Note 8 - Foreign Exchange Transaction Loss (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Foreign Exchange [Member] |  |
Loss on foreign exchange transactions | $ (1) | $ (10)
Loss on foreign exchange transactions | $ (1) | $ (10)

X
- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_OtherNonoperatingIncomeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | us-gaap_TradingActivityByTypeAxis=us-gaap_ForeignExchangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |