Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2011

Disclosure Organization And Summary Of Significant Accounting Policies Tables [Abstract]

Schedule of excise taxes [Tables]

(in millions)		2011		2010		2009
Progress Energy	$	315	$	345	$	333
PEC		110		119		108
PEF		205		226		225

Schedule of consolidated variable interest entity [Tables]

(in millions)	2011		2010
Miscellaneous other property and investments	$	12	$	12
Cash and cash equivalents		1		-
Prepayments and other current assets		-		1
Accounts payable		-		5