Share Based Compensation (Schedule Of Stock Options/SARs Activity) (Detail) (USD $)	12 Months Ended
Dec. 31, 2012
Long-Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options/SARs - Outstanding at January 1	13,809,841
Options/SARs - Granted	0
Options/SARs - Exercised	0
Options/SARs - Forfeited or Expired	2,539,779
Options/SARs - Outstanding at December 31	11,270,062
Options/SARs - Exercisable at December 31	6,611,656
Options/SARs - Weighted Average Remaining Contractual Term of Options Outstanding (in years)	6.3
Options/SARs - Aggregate Intrinsic Value of Options Outstanding	$ 0
Weighted Average Exercise Price - Outstanding at January 1	$ 10.31
Weighted Average Exercise Price - Granted	$ 0.00
Weighted Average Exercise Price - Exercised	$ 0.00
Weighted Average Exercise Price - Forfeited or Expired	$ 17.22
Weighted Average Exercise Price - Outstanding at December 31	$ 8.75
Weighted Average Exercise Price - Exercisable at December 31	$ 10.44
2003 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options/SARs - Outstanding at January 1	13,082,905
Options/SARs - Granted	0
Options/SARs - Exercised	0
Options/SARs - Forfeited or Expired	403,549
Options/SARs - Outstanding at December 31	12,679,356
Options/SARs - Exercisable at December 31	12,679,356
Options/SARs - Weighted Average Remaining Contractual Term of Options Outstanding (in years)	0.4
Options/SARs - Aggregate Intrinsic Value of Options Outstanding	$ 0
Weighted Average Exercise Price - Outstanding at January 1	$ 5.66
Weighted Average Exercise Price - Granted	$ 0.00
Weighted Average Exercise Price - Exercised	$ 0.00
Weighted Average Exercise Price - Forfeited or Expired	$ 9.02
Weighted Average Exercise Price - Outstanding at December 31	$ 5.55
Weighted Average Exercise Price - Exercisable at December 31	$ 5.55

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ 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(1)(c), d(2)

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-Publisher FASB

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ 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(1)(c)

-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.

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- Definition

The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.

+ 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(1)(e)

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- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ References

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- Definition

The combined weighted average exercise price associated with stock options during the period that have either lapsed or been forfeited.

+ References

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- Definition

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

+ 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(1)(d)

-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.

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- Definition

The weighted average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on stock options awarded under the plan during the reporting period.

+ 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(1)(d)

-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.

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- Definition

The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices pertaining to options outstanding under the plan 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 d(1)

-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.

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- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

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

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- Definition

The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ 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(1)(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.

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- Definition

The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, which may be expressed in a decimal value for number of years.

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- Definition

Number of share options (or share units) exercised during the current period.

+ References

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

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