Quarterly Financial Data (Unaudited) - (Tables)

12 Months Ended

Dec. 31, 2011

Selected Quarterly Financial Information [Abstract]

Quarterly financial data (Unaudited)

Progress Energy
(in millions except per share data)			First		Second		Third		Fourth
2011
Operating revenues			$	2,167	$	2,256	$	2,747	$	1,737
Operating income				451		428		690		19
Income (loss) from continuing operations				187		180		293		(73)
Net income (loss)				185		178		293		(74)
Net income (loss) attributable to controlling interests				184		176		291		(76)
Common stock data
	Basic and diluted earnings per common share
		Income (loss) from continuing operations attributable to controlling interests, net of tax		0.63		0.60		0.98		(0.25)
		Net income (loss) attributable to controlling interests		0.62		0.60		0.98		(0.25)
Dividends declared per common share				0.620		0.620		0.620		0.259
Market price per share
	High			46.83		49.03		52.42		56.33
	Low			42.55		45.20		42.05		49.37
2010
Operating revenues			$	2,535	$	2,372	$	2,962	$	2,321
Operating income				494		440		753		367
Income from continuing operations				191		181		365		130
Net income				190		180		365		128
Net income attributable to controlling interests				190		180		361		125
Common stock data
	Basic and diluted earnings per common share
		Income from continuing operations attributable to controlling interests, net of tax		0.67		0.62		1.23		0.43
		Net income attributable to controlling interests		0.67		0.62		1.23		0.42
Dividends declared per common share				0.620		0.620		0.620		0.620
Market price per share
	High			41.35		40.69		44.82		45.61
	Low			37.04		37.13		38.96		43.08