Proceeds from the termination of interest rate swaps designated as fair value hedges recorded as a reduction to interest expense during the period.

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- Definition

Represents the reduction in interest expense due to amortization of proceeds from terminated interest rate swaps.

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- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 21
-Paragraph 16, 20
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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- Definition

The amount of cash received during the period on settlement of a hedge.

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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.

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- Definition

Gross amount of debt extinguished.

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- Definition

Aggregate notional amount of all interest rate derivatives designated as hedging instruments in fair value hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6519104

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6935481&loc=SL5579245-113959

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Derivative Instruments (Details) (USD $) In Millions		3 Months Ended		6 Months Ended	3 Months Ended
Derivative Instruments (Details) (USD $) In Millions	Jun. 30, 2011	Jun. 30, 2009 Senior Notes 8.25%, due 2013 Interest Rate Swaps Fair Value Hedges	Jun. 30, 2010 Interest Rate Swaps Interest Expense	Jun. 30, 2010 Interest Rate Swaps Interest Expense	Jun. 30, 2009 Interest Rate Swaps Fair Value Hedges Senior Debentures 7.50%, due 2010	Jun. 30, 2009 Senior Debentures 7.50%, due 2010	Jun. 30, 2009 Senior Notes 8.25%, due 2013
Derivatives and Hedges
Terminated interest rate swaps notional amount	$ 700
Face Value							450
Extinguishment of Debt Carrying Amount						222
Proceeds from termination of interest rate swaps		12			5
Derivative proceeds recognized as reduction to interest expense upon termination of interest rate swap agreements					4
Reduction in interest expense due to amortization of proceeds from terminated interest rate swaps			$ 10	$ 11