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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Millions
Sep. 30, 2015
Dec. 31, 2014
 [1]
Restricted cash $ 16 $ 82
Property, plant and equipment, net $ 3,145 $ 3,276
Common units outstanding 29,700,000.0 18,700,000.0
Common units issued 29,700,000.0 18,700,000.0
Variable Interest Entity [Member]    
Restricted cash $ 13 $ 55
Property, plant and equipment, net $ 707 $ 722
[1] Prior-period financial information has been retrospectively adjusted as discussed in Note 2.