Acquisitions and Dispositions (Tables)

12 Months Ended

Dec. 31, 2011

Acquisitions And Dispositions Tables [Abstract]

Schedule Of Business Acquisitions By Acquisition Fair Value Consideration [Table Text Block]

Agreed enterprise value		$	4,719
	Less: fair value of assumed long-term debt outstanding, net		(1,255)
Cash consideration paid to DPL's common stockholders			3,464
	Add: cash paid for outstanding stock-based awards		19
Total cash consideration paid		$	3,483

Schedule of Purchase Price Allocation [Table Text Block]

Cash		$	116
Accounts receivable			278
Inventory			124
Other current assets			41
Property, plant and equipment			2,549
Intangible assets subject to amortization			166
Intangible assets - indefinite-lived			5
Regulatory assets			201
Other noncurrent assets			58
Current liabilities			(401)
Non-recourse debt			(1,255)
Deferred taxes			(558)
Regulatory liabilities			(117)
Other noncurrent liabilities			(195)
Redeemable preferred stock			(18)
	Net identifiable assets acquired		994
Goodwill			2,489
	Net assets acquired	$	3,483

Business Acquisition, Pro Forma Information [Table Text Block]

			Net Income (Loss)
			Attributable to The
	Revenue		AES Corporation
	(in millions)
Actual from November 28, 2011 - December 31, 2011	$	154	$	(6)
Pro forma for 2011 (unaudited)	$	18,945	$	116
Pro forma for 2010 (unaudited)	$	17,659	$	101