Debt (First Lien Term Loans) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
First Lien Term Loans 2018 [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 1,601	$ 1,614
First Lien Term Loan 2019 [Member]
Debt Instrument [Line Items]
Long-term Debt	818	824
2020 First Lien Term Loan [Member]
Debt Instrument [Line Items]
Long-term Debt	387	390
First Lien Term Loans [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 2,806	$ 2,828

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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