Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2011

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

Quarterly Financial Data (Unaudited)

2012	Quarter Ended December 31			Quarter Ended September 30			Quarter Ended June 30		Quarter Ended March 31
Operating revenues	$	355		$	314		$	312	$	358
Operating (loss) income	(3		)	5			23		10
Net (loss) income attributable to Regency Energy Partners LP	(9		)	(2		)	29		28
Earnings per common units:
Basic net (loss) income per common unit	(0.08		)	(0.04		)	0.14		0.15
Diluted net (loss) income per common unit	(0.08		)	(0.04		)	0.10		0.14
2011	Quarter Ended December 31			Quarter Ended September 30			Quarter Ended June 30		Quarter Ended March 31
Operating revenues	$	370		$	390		$	357	$	317
Operating income	13			14			5		8
Net income attributable to Regency Energy Partners LP	13			30			15		14
Earnings per common units:
Basic net income per common unit	0.06			0.18			0.08		0.08
Diluted net income per common unit	0.06			0.09			0.07		0.07