Variable Interest Entities (Tables)

12 Months Ended

Dec. 31, 2013

Variable Interest Entities Disclosure [Abstract]

Summarized Financial Information of the Consolidated Projects

EME's summarized financial information for consolidated projects consisted of the following:

(in millions)	December 31, 2013		December 31, 2012
Current assets	$	70	$	74
Net property, plant and equipment	1,187		1,117
Other long-term assets	112		90
Total assets	$	1,369	$	1,281
Current liabilities	$	43	$	50
Long-term debt net of current portion	214		186
Deferred revenues	152		156
Long-term derivative liabilities	12		23
Other long-term liabilities	47		40
Total liabilities	$	468	$	455
Noncontrolling interests	$	382	$	288

Carrying Amount of Investments in Unconsolidated Variable Interest Entities and the Maximum Exposure to Loss for Each Investment

The following table presents the carrying amount of EME's investments in unconsolidated VIEs and the maximum exposure to loss for each investment:

	December 31, 2013
(in millions)	Investment		Maximum Exposure
Natural gas-fired projects	$	325	$	325
Wind projects	188		188

Investments in Unconsolidated Affiliates Accounted for by the Equity Method

The following table presents summarized financial information of the investments in unconsolidated affiliates accounted for by the equity method:

	Years Ended December 31,
(in millions)	2013		2012		2011
Revenues	$	754	$	607	$	769
Expenses	656		519		601
Net income	$	98	$	88	$	168

	December 31,
(in millions)	2013		2012
Current assets	$	411	$	337
Noncurrent assets	657		711
Total assets	$	1,068	$	1,048
Current liabilities	$	120	$	78
Noncurrent liabilities	72		82
Equity	876		888
Total liabilities and equity	$	1,068	$	1,048

Investments in Unconsolidated Affiliates Accounted for Under the Equity Method and Represents at Least 5% of Income

The following table presents, as of December 31, 2013, the investments in unconsolidated affiliates accounted for by the equity method that represent at least 5% of EME's loss before tax, excluding asset impairment charges, or in which EME has an investment balance greater than $40 million:

Unconsolidated Affiliates	Location	Investment at December 31, 2013 (in millions)		Ownership Interest at December 31, 2013	Operating Status
San Juan Mesa	Elida, NM	$	74	75%	Operating wind-powered facility
Elkhorn Ridge	Bloomfield, NE	81		67%	Operating wind-powered facility
Sunrise	Fellows, CA	174		50%	Operating gas-fired facility
Sycamore	Bakersfield, CA	48		50%	Operating cogeneration facility
Watson	Carson, CA	34		49%	Operating cogeneration facility

Summarized Financial Information of the Investments in Unconsolidated Affiliates

The following table presents summarized financial information of EME's investments in unconsolidated affiliates:

	December 31,
(in millions)	2013		2012
Investments in Unconsolidated Affiliates
Equity investments	$	513	$	527
Cost investments	—		7
Total	$	513	$	534