v2.3.0.11

Indebtedness (Details) (USD $)	6 Months Ended
	Jun. 30, 2011
Debt Instrument [Line Items]
Repayment of 5.75% senior notes maturing on June 2011	$ 250,000,000
Indebtedness (Textuals) [Abstract]
Commercial paper can be issued under commercial paper program	1,000,000,000
Maximum maturity of commercial paper issued	270 days
Commercial paper outstanding	0
5.75% senior notes maturing on June 2011 [Member]
Debt Instrument [Line Items]
Repayment of 5.75% senior notes maturing on June 2011	250,000,000
Interest rate on notes	5.75%
Maturity date of Notes	Jun. 01, 2011
Revolving Credit Facility with commercial bank [Member]
Additional Indebtedness (Textuals) [Abstract]
Committed revolving credit facilities	1,700,000,000
Borrowing Under Committed revolving credit facilities	$ 0

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Additional Indebtedness.

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The amount of commercial papers that are available for issuance.

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Indebtedness.

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Maximum maturity of commercial paper issued.

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Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13(2))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Interest rate stated in the contractual debt agreement.

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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
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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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Date when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.).

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-Publisher FASB
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Amount borrowed under the credit facility as of the balance sheet date.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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