Earnings Per Share and Stock-Based Compensation (Details 1)	9 Months Ended
Jul. 31, 2012
Performance based options on restricted stock units
Granted, Performance Restricted Stock Units	375,000,000
Performance Options [Member]
Performance based options on restricted stock units
Non-vested, Performance Options, October 31, 2011	936,000
Vested, Performance Options
Non-vested, Performance Options, July 31, 2012	936,000
Performance Restricted Stock Units [Member]
Performance based options on restricted stock units
Non-vested, Performance Restricted Stock Units, October 31, 2011	7,520,000
Granted, Performance Restricted Stock Units	700,000
Vested, Performance Restricted Stock Units
Canceled, Performance Restricted Stock Units	(590,625)
Non-vested, Performance Restricted Stock Units, July 31, 2012	7,629,375

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(a)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(i)-(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

+ Details

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- Definition

Net number of share options (or share units) granted during the period.

+ References

+ Details

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- Details

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- Definition

Share based compensation arrangement by share based payment award equity instruments options nonvested number.

+ References

No definition available.

+ Details

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- Definition

Share based compensation arrangement by share based payment award options vests in period

+ References

No definition available.

+ Details

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