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Debt and Other Obligations Debt Securities Activity (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended			1 Months Ended
	Nov. 30, 2013 2009 Series A [Member]	Dec. 31, 2013 electronotes		Dec. 31, 2013 Total	Dec. 31, 2013 2009 Series B [Member]
Debt Instrument
Amount of bond issuance (redemption)	$ (2)	$ (4)	[1]	$ (7)	$ (1)
Interest rate	2.25%	3.56%	[1]		3.77%
Percent of par value				100.00%
[1] All redemptions were at 100 percent of par.

X

- Definition

The percent of par value that debt was issued/redeemed for.

+ References

No definition available.

+ Details

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X

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 3: 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

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- Details

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X

- Definition

The net cash inflow or outflow in other borrowings not otherwise defined in the taxonomy.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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

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