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Goodwill and Other Intangible Assets (Intangible Assets Acquired) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Indefinite-lived Intangible Assets [Line Items]
Indefinite Lived Intangible Asset Acquired Amount	$ 5	$ 19
Renewable Energy Certificates [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite Lived Intangible Asset Acquired Amount	3	5
Water rights
Indefinite-lived Intangible Assets [Line Items]
Indefinite Lived Intangible Asset Acquired Amount		13
Other
Indefinite-lived Intangible Assets [Line Items]
Indefinite Lived Intangible Asset Acquired Amount	$ 2	$ 1

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- Definition

The aggregate cost of a major indefinite-lived intangible asset class acquired, during the period, either individually or as part of a group of assets (in either an asset acquisition or business combination).

+ References

No definition available.

+ Details

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Namespace Prefix:	aes_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration