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Note 6 Contingencies (Details) - USD ($) $ in Millions | Mar. 31, 2018 | Jan. 27, 2018 | Sep. 30, 2017
--- | --- | --- | ---
Loss Contingencies [Line Items] |  |  |
Contingent Liability | $ 38 |  | $ 36
Goods and Services Tax for Imports [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Possible Claim Contingency |  | $ 23 |

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- Definition Maximum amount of possible loss from contingency + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 + Details
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- Details
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