Investments in Unconsolidated Affiliates (Tables)

12 Months Ended

Dec. 31, 2013

Investments In Unconsolidated Affiliates [Line Items]

Investments in Equity Method Unconsolidated Affiliates

	Years Ended December 31,
	2013				2012				2011
(in millions)	Investments		Equity in earnings		Investments		Equity in earnings		Equity in earnings
Regulated Utilities	$	4	$	(1)	$	5	$	(5)	$	—
International Energy		82		110		81		134		145
Commercial Power		252		7		219		14		6
Other		52		6		178		5		9
Total	$	390	$	122	$	483	$	148	$	160