Represents the generation capacity of disposal group not considered discontinued operation.

No definition available.

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Namespace Prefix:	aes_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of equity interest in business disposed.

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Future Noncontrolling Interest, Ownership by noncontrolling owner once transaction is complete

+ References

No definition available.

+ Details

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Namespace Prefix:	aes_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Investment Options, acquisition percentage

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Sale Agreement, Buyer Option To Purchase Ownership Interest, Sales Price

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

sales agreement, Buyer option to purchase ownership interest, exercised

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

For transactions that are recognized separately from the acquisition of assets and assumptions of liabilities in the business combination, such as related to pre-existing relationships with the acquiree, this element represents the disclosure of the amount of any issuance related costs which have not been expensed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)

-URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

Name:	us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of gain (loss) on sale or disposal of equity in securities of subsidiaries.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (13)(g)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockConsiderationReceivedPerTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of investments, not including unrealized gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, held at each balance sheet date and included in earnings for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

+ Details

Name:	us-gaap_UnrealizedGainLossOnInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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- Details

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Equity Equity Transactions with Noncontrolling Interests (Details) - Entity [Domain]	3 Months Ended
	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Apr. 01, 2015 USD ($)	Mar. 15, 2015 USD ($) MW	Dec. 15, 2014
Noncontrolling Interest [Line Items]
Future Noncontrolling Interest, Ownership by noncontrolling owner once transaction is complete	30.00%
Business Combination, Separately Recognized Transactions, Additional Disclosures, Issuance Costs Not Expensed	$ 82,000,000
Sale of Stock, Consideration Received Per Transaction	461,000,000
Gain (Loss) on Disposition of Stock in Subsidiary	$ 0
IPALCO Enterprises, Inc. [Member]
Noncontrolling Interest [Line Items]
Net proceeds received from sale of businesses		$ 247,000,000
Noncontrolling Interest, Ownership Percentage by Parent					100.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	24.90%	15.00%
sales agreement, Buyer option to purchase ownership interest, exercised			$ 214,000,000
IPALCO Enterprises, Inc. [Member] \| Acquire additional shares through 2016 [Member]
Noncontrolling Interest [Line Items]
Sale Agreement, Buyer Option To Purchase Ownership Interest, Sales Price	$ 135,000,000	$ 349,000,000
Investment Options, acquisition percentage		17.65%
Jordan [Member]
Noncontrolling Interest [Line Items]
Disposal Group Not Discontinued Operation Ownership Interest Sold				40.00%
Disposal Group Not Discontinued Operation Generation Capacity \| MW				247
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds				$ 30,000,000
Additional Paid-in Capital [Member] \| IPALCO Enterprises, Inc. [Member]
Noncontrolling Interest [Line Items]
Unrealized Gain (Loss) on Investments	377,000,000
Retained Earnings [Member] \| IPALCO Enterprises, Inc. [Member]
Noncontrolling Interest [Line Items]
Unrealized Gain (Loss) on Investments	$ (377,000,000)