Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Payments for Lease Payments and Lease Financing Commitments

Future minimum operating lease payments at December 31, 2013 for Midwest Generation are:

Years Ending December 31, (in millions)	Operating Leases		LSTC
2014	$	2	$	283
2015	1		59
2016	1		23
2017	—		—
2018	—		—
Thereafter	—		101
Total future commitments	$	4	$	466

Future minimum payments for operating leases at December 31, 2013 for EME are:

Years Ending December 31, (in millions)	Powerton and Joliet Stations1		Other Operating Leases		LSTC
2014	$	272	$	15	$	32
2015	67		12		—
2016	26		10		—
2017	1		10		—
2018	1		8		—
Thereafter	239		115		—
Total future commitments	$	606	$	170	$	32

¹  Reflects principal and interest payments related to the Powerton and Joliet Sale Leaseback.

Schedule of Other Minimum Commitments

Certain other minimum commitments are estimated as follows:

(in millions)	2014		2015		2016		2017		2018
Midwest Generation
Fuel supply contracts	$	194	$	—	$	—	$	—	$	—
Coal transportation agreements1	259		257		257		213		212
Capital expenditures	9		—		—		—		—
Other contractual obligations	15		—		—		—		—
Other EME subsidiaries
Gas transportation agreements	7		7		8		7		3
Other contractual obligations	33		30		20		7		2
	$	517	$	294	$	285	$	227	$	217

¹  Years 2014 through 2018 reflect a reduction in minimum volumes for the voluntarily cessation of coal-fired operations at the Fisk and Crawford Stations.