Debt Instrument, Redemption Date

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- Definition

Per share impact of the gain or loss on the extinguishment of debt, net of applicable taxes.

+ Details

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- Definition

The difference between the reacquisition price and the net carrying amount of the extinguished debt recognized currently as a component of income in the period of extinguishment, net of tax.

+ Details

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- Definition

The percentage by which the principal balance is multiplied to calculate the redemption price of the outstanding note.

+ Details

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- Definition

Interest rate stated in the contractual debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Definition

The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 18

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

-Number 95

-Paragraph 20

-Subparagraph 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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

Name:	us-gaap_EarlyRepaymentOfSeniorDebt
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- Definition

Gross amount of debt extinguished.

+ Details

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Balance Type:	debit
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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.

+ Details

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- Definition

Amount represents the difference between the fair value of the payments made and the carrying amount of the debt at the time of its extinguishment.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 50

-Section 40

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12355-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 26

-Paragraph 20, 21

-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 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 50

-Section 40

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6850294&loc=d3e12317-112629

+ Details

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Debt and Equity Transactions (Unaudited) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended			3 Months Ended	9 Months Ended	1 Months Ended	9 Months Ended			1 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2010 Long-term Debt [Member]	Jun. 30, 2011 Long-term Debt [Member] Senior Notes Due 2031 [Member]	Sep. 30, 2011 Long-term Debt [Member] Senior Notes Due 2031 [Member]	Apr. 30, 2011 Long-term Debt [Member] Senior Notes Due 2015 [Member]	Sep. 30, 2011 Long-term Debt [Member] Senior Notes Due 2015 [Member]	Sep. 30, 2010 Long-term Debt [Member] Senior Notes Due 2015 [Member]	Sep. 30, 2010 Long-term Debt [Member] Senior Notes Due 2017 [Member]	Apr. 30, 2010 Long-term Debt [Member] Senior Floating Rates Notes Due 2015 [Member]	Sep. 30, 2010 Long-term Debt [Member] Senior Floating Rates Notes Due 2015 [Member]	Sep. 30, 2011 Line of Credit [Member]
Extinguishment of Debt [Line Items]
Debt Instrument, Redemption Date								Apr. 01, 2011				Apr. 01, 2010
Extinguishment of Debt, Amount						$ 35		$ 1,100		$ 218	$ 329	$ 1,000
Debt Instrument, Interest Rate (in hundredths)						9.50%			8.25%		8.375%
Early Repayment Of Senior Debt						49				237	358
Redemption price percentage to principal amount (in hundredths)								104.125%				101.00%
Losses on early extinguishment of debt	0	0	68	77	55		6		55				22	7
Loss on early extinguishment of debt, effect on net income attributable to common stockholders					$ 48		$ 5		$ 49				$ 19	$ 6
Loss on early extinguishment of debt, effect on net income per diluted share (in dollars per share)					$ 0.05		$ 0.01		$ 0.05				$ 0.02	$ 0.01