Acquisitions Pro Forma Results of Operations Table (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Business Combinations [Abstract]
Revenues	$ 1,178	$ 923	$ 2,323	$ 1,731
Net loss attributable to the Partnership	$ (18)	$ (20)	$ (53)	$ (78)
Basic net loss per Limited Partner unit	$ (0.05)	$ (0.07)	$ (0.16)	$ (0.27)
Diluted net loss per Limited Partner unit	$ (0.05)	$ (0.07)	$ (0.16)	$ (0.27)

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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