Percentage of equity interest in business disposed.

No definition available.

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- Definition

Divestiture of Businesses, Portion Contingent Upon Achievement of Certain Restructuring Efficiencies

+ References

No definition available.

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- Definition

Gain on Disposition of Stock in Subsidiary, Recorded to APIC

+ References

No definition available.

+ Details

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- Definition

Investment Options, acquisition percentage

+ References

No definition available.

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- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e637-108580

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580

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-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e681-108580

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- Definition

Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(30)(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684

+ Details

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- 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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- Definition

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

+ References

No definition available.

+ Details

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- 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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- Definition

Amount of increase in noncontrolling interest from sale of a portion of the parent's controlling interest.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(2)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569655-111683

+ Details

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- 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

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- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 4.E)
-URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(31))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Paragraph 1
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(30))
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Equity (Transactions with Noncontrolling Interests) (Details) - USD ($) $ in Millions			1 Months Ended	3 Months Ended							9 Months Ended	12 Months Ended
	Sep. 28, 2017	Feb. 18, 2016	Feb. 28, 2015	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Mar. 31, 2017	Mar. 31, 2016	Sep. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Mar. 20, 2018	Jan. 01, 2018	Jun. 25, 2014
Noncontrolling Interest [Line Items]
Gain (Loss) on Disposition of Business				$ 128	$ (21)	$ 89	$ 788	$ (48)				$ 984	$ (52)	$ 29
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners									6.70%
Stockholders' Equity Attributable to Parent				3,208								3,208	2,465
Additional Paid in Capital				8,154								8,154	8,501
Accumulated Other Comprehensive Income (Loss), Net of Tax				$ (2,071)								(2,071)	(1,876)	(2,756)		$ (1,857)
Distributed Energy [Member]
Noncontrolling Interest [Line Items]
Sale of subsidiary shares to noncontrolling interests												98
Alto Maipo [Member]
Noncontrolling Interest [Line Items]
Gain (Loss) on Disposition of Business									$ 0
Business Acquisition, Percentage of Voting Interests Acquired									40.00%
Noncontrolling Interest, Ownership Percentage by Parent									62.00%
Stockholders' Equity Attributable to Parent									$ 196
Additional Paid in Capital									229
Accumulated Other Comprehensive Income (Loss), Net of Tax									$ (33)				$ (33)
Masinloc Subsidiary [Member]
Noncontrolling Interest [Line Items]
Divestiture of Businesses, Portion Contingent Upon Achievement of Certain Restructuring Efficiencies																	$ 23
Disposal Group Not Discontinued Operation Ownership Interest Sold													100.00%		51.00%		45.00%
Dominican Republic
Noncontrolling Interest [Line Items]
Gain (Loss) on Disposition of Business											$ 0
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners											5.00%
Proceeds from divestiture of business	$ 60
Gain on Disposition of Stock in Subsidiary, Recorded to APIC											$ 25
IPP4 [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent													36.00%
Jordan [Member]
Noncontrolling Interest [Line Items]
Disposal Group, Including Discontinued Operation, Consideration		$ 21
Gain (Loss) on Disposition of Business		$ 4
Disposal Group Not Discontinued Operation Ownership Interest Sold		40.00%
Acquire additional shares through 2016
Noncontrolling Interest [Line Items]
Investment Options, acquisition percentage			17.65%
Additional Paid-in Capital [Member]
Noncontrolling Interest [Line Items]
Sale of subsidiary shares to noncontrolling interests												(3)	$ 13	84
Retained Earnings (Accumulated Deficit) \| IPALCO Enterprises, Inc. [Member]
Noncontrolling Interest [Line Items]
Sale of subsidiary shares to noncontrolling interests										$ 84		0	0	(84)
Noncontrolling Interest [Member]
Noncontrolling Interest [Line Items]
Sale of subsidiary shares to noncontrolling interests												$ 98	$ 83	$ 17