Debt 2024 First Lien Notes (Details) (USD $)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Debt Instrument [Line Items]
Gains (Losses) on Extinguishment of Debt	$ (144,000,000)	$ (30,000,000)	$ (94,000,000)
2024 First Lien Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	490,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.875%
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed	10.00%
Debt Instrument, Redemption Price, Percentage	103.00%
Deferred Finance Costs, Net	8,000,000
Gains (Losses) on Extinguishment of Debt	$ 20,000,000

Face (par) amount of debt instrument at time of issuance.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Article 5

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

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

-Publisher FASB

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Percentage of principal amount of debt redeemed.

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No definition available.

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For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain.

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

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

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