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Sponsor's Fee (Details) (USD $)	9 Months Ended
	Jul. 31, 2011
Sponsor's Fee
Sponsor's fee daily accrual annual nominal rate	0.40%
Legal fees and expenses paid by sponsor per year	$ 100,000
Legal fees and expenses, trust paying amount in excess per year	$ 100,000

X

- Definition

Legal Fees And Expenses Agreed Amount Payable By Trust Over Sponsor Limit

+ Details

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Namespace Prefix:	fxe
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Sponsor Fee Daily Accrual Annual Nominal Rate

+ Details

Name:	fxe_SponsorFeeDailyAccrualAnnualNominalRate
Namespace Prefix:	fxe
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Sponsor's Fee [Abstract]

+ Details

Name:	fxe_SponsorsFeeAbstract
Namespace Prefix:	fxe
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 5
-Paragraph 9
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration