Asset Impairments, Lease Terminations and Other (Tables)

12 Months Ended

Dec. 31, 2011

Asset Impairments, Lease Terminations and Other [Abstract]

Schedule of asset impairment, lease termination and other expenses

Asset impairments, lease terminations and other expenses consisted of the following:

	Years Ended December 31,
(in millions)	2011		2010		2009
Homer City plant impairment	$	1,032	$	—	$	—
Midwest Generation Stations impairment	640		40		—
Lease termination	—		—		887
Wind projects impairment and other charges	64		—		—
Other	36		7		3
Total	$	1,772	$	47	$	890

Schedule of assets and liabilities related to Homer City included in the consolidated financial statements

Included in the consolidated financial statements are the following assets and liabilities related to Homer City, excluding deferred taxes:

(in millions)	At December 31, 2011
Cash	$	84
Restricted deposits	27
Inventory	105
Other assets	43
Total assets	259
Accounts payable and accrued liabilities	30
Pension and other postretirement benefits	49
Other liabilities	13
Total liabilities	92
Net assets	$	167