Indebtedness and Leases (Schedule Of Maturities Of Long-Term Debt) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013
Debt Instrument [Line Items]
Remainder of 2013	$ 956
2014	1,047
2015	800
2016	1,794
2017	558
Principal Not Subject To Compromise [Member]
Debt Instrument [Line Items]
Remainder of 2013	867
2014	897
2015	796
2016	1,790
2017	530
Payments not made due to Chapter 11 Proceedings	451
Principal Subject To Compromise [Member]
Debt Instrument [Line Items]
Remainder of 2013	89
2014	150
2015	4
2016	4
2017	28
Payments not made due to Chapter 11 Proceedings	$ 69

Payments Not Made Due to Chapter 11 Proceedings

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- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year.

+ References

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year.

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