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Condensed Consolidated Balance Sheets Balance Sheet (Paranthetical) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Paranthetical [Abstract]    
Other, accumulated amortization of debt issuance costs $ 30 $ 24
Intangible assets, net of accumulated amortization 179 107
Series A preferred units, redemption amount $ 38 $ 38