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Reportable Segments (Equity in earnings of unconsolidated affiliates) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Equity in earnings of unconsolidated affiliates	$ 236	$ 212	$ 117
Investment In ETP [Member]
Segment Reporting Information [Line Items]
Equity in earnings of unconsolidated affiliates	172	142	26
Investment In Regency [Member]
Segment Reporting Information [Line Items]
Equity in earnings of unconsolidated affiliates	135	105	120
Adjustments and Eliminations [Member]
Segment Reporting Information [Line Items]
Equity in earnings of unconsolidated affiliates	$ (71)	$ (35)	$ (29)

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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