Environmental Matters (Tables)

12 Months Ended

Dec. 31, 2011

Disclosure Environmental Matters Tables [Abstract]

Environmental remediation accruals [Tables]

PROGRESS ENERGY
(in millions)		MGP and Other Sites		Remediation of Distribution and Substation Transformers		Total
Balance, December 31, 2008		$	31	$	22	$	53
Amount accrued for environmental loss contingencies			3		13		16
Expenditures for environmental loss contingencies			(12)		(15)		(27)
Balance, December 31, 2009(a)			22		20		42
Amount accrued for environmental loss contingencies			8		13		21
Expenditures for environmental loss contingencies			(10)		(18)		(28)
Balance, December 31, 2010(a)			20		15		35
Amount accrued for environmental loss contingencies			2		8		10
Expenditures for environmental loss contingencies			(5)		(17)		(22)
Balance, December 31, 2011(a)		$	17	$	6	$	23
(a)	Expected to be paid out over one to 15 years.