Gain on sale of ownership interest in subsidiary

No definition available.

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- Definition

Gain on sale of ownership interest in subsidiary after tax

+ References

No definition available.

+ Details

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- Definition

merger termination fee

+ References

No definition available.

+ Details

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- Definition

Out of pocket expenses incurred in connection with the merger to be reimbursed to HEI

+ References

No definition available.

+ Details

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- Definition

Renewable Energy Assets, Power Generation Capacity

+ References

No definition available.

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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

Total change in each class of partners' capital accounts during the year due to the sale of units. All partners include general, limited and preferred partners.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

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- Definition

Total units issued during the year due to the sale of units. All partners include general, limited and preferred partners.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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- Definition

The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or the sale of investment in consolidated subsidiaries (generally greater than 50 percent).

+ 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=66902209&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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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- 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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- Details

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- Details

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- Details

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- Details

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- Details

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Balance Type:
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- Details

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- Details

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- Details

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- Details

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Summary of Significant Accounting and Reporting Policies (Details) $ / shares in Units, $ in Millions	2 Months Ended	6 Months Ended
	Mar. 31, 2016 USD ($) $ / shares shares	Jun. 30, 2016 USD ($) MW	Sep. 30, 2016 USD ($)	Jul. 16, 2016 USD ($)
Merchant Natural Gas Generation Facilities [Member]
Subsidiary, Sale of Stock [Line Items]
Proceeds from sale of ownership interest in merchant natural gas generation facilities		$ 456
Gain on sale of ownership interest in merchant natural gas generation facilities		254
Gain on sale of ownership interest in merchant natural gas facilities after-tax		$ 106
Merchant Natural Gas Generation Facilities [Member] \| NextEra Energy Resources subsidiary [Member]
Subsidiary, Sale of Stock [Line Items]
Total generating capacity \| MW		2,884
Natural Gas Generation Facilities [Member] [Member] \| NextEra Energy Resources subsidiary [Member]
Subsidiary, Sale of Stock [Line Items]
Total generating capacity \| MW		840
NEP OpCo [Member]
Subsidiary, Sale of Stock [Line Items]
Ownership percentage		70.60%
Public Offering [Member] \| NextEra Energy Partners [Member] \| Common Stock [Member]
Subsidiary, Sale of Stock [Line Items]
Number of units sold in sale \| shares	11,155,000
Aggregate purchase price of units sold	$ 287
Price of unit (per common unit) \| $ / shares	$ 25.76
Subsequent Event [Member] \| Hawaiian Electric Industries, Inc [Member] \| Termination of the Merger Agreement [Member]
Subsidiary, Sale of Stock [Line Items]
Amount of termination fee				$ 90
Scenario, Forecast [Member] \| Hawaiian Electric Industries, Inc [Member] \| Termination of the Merger Agreement [Member]
Subsidiary, Sale of Stock [Line Items]
Reimbursement of out of pocket expenses			$ 5