Business Acquisition, Percentage of Voting Interests to be Acquired in Proposed Merger

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- Definition

Business Combination, Consideration To Be Transferred in Proposed Merger

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No definition available.

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- Definition

Gain on sale of ownership interest in subsidiary

+ References

No definition available.

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- Definition

Gain on sale of ownership interest in subsidiary after tax

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No definition available.

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- Definition

merger termination fee

+ References

No definition available.

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- Definition

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

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No definition available.

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- Definition

Renewable Energy Assets, Power Generation Capacity

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No definition available.

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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- Definition

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

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No definition available.

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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 amount received from the sale of a business segment or subsidiary or sale of an entity that is related to it but not strictly controlled during the period (for example, an unconsolidated subsidiary, affiliate, joint venture or equity method investment).

+ 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

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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

+ 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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- 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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Summary of Significant Accounting and Reporting Policies (Details) $ / shares in Units, $ in Millions				1 Months Ended	2 Months Ended	9 Months Ended
	Oct. 31, 2016 USD ($)	Oct. 30, 2016 USD ($)	Oct. 29, 2016 USD ($)	Sep. 30, 2016 USD ($) $ / shares MW shares	Mar. 31, 2016 USD ($) $ / shares shares	Sep. 30, 2016 USD ($) $ / shares MW	Jul. 29, 2016
Energy Future Holdings Corp and Indirect Interest of Oncor Electric Delivery Company LLC [Member]
Subsidiary, Sale of Stock [Line Items]
Consideration transferred				$ 9,796
EFH Merger Co., LLC [Member] \| Energy Future Holdings Corp. [Member]
Subsidiary, Sale of Stock [Line Items]
Percentage of interests acquired							100.00%
EFH Merger Co., LLC [Member] \| Oncor Electric Delivery Company LLC [Member]
Subsidiary, Sale of Stock [Line Items]
Percentage of interests acquired							80.03%
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		2,884
Natural Gas Generation Facilities [Member] [Member] \| NextEra Energy Resources subsidiary [Member]
Subsidiary, Sale of Stock [Line Items]
Total generating capacity \| MW				840		840
NEP OpCo [Member]
Subsidiary, Sale of Stock [Line Items]
Ownership percentage				65.20%		65.20%
Hawaiian Electric Industries, Inc [Member]
Subsidiary, Sale of Stock [Line Items]
Amount of termination fee				$ 90		$ 90
Reimbursement of out of pocket expenses				$ 5		$ 5
Public Offering [Member] \| NextEra Energy Partners [Member] \| Common Stock [Member]
Subsidiary, Sale of Stock [Line Items]
Number of units sold in sale \| shares				11,962,300	11,155,000
Aggregate purchase price of units sold				$ 342	$ 287
Price of unit (per common unit) \| $ / shares				$ 28.56	$ 25.76	$ 28.56
Subsequent Event [Member] \| Oncor Electric Delivery Company LLC [Member]
Subsidiary, Sale of Stock [Line Items]
Percentage of interests acquired		100.00%
Subsequent Event [Member] \| Texas Transmission Holdings Corporation [Member]
Subsidiary, Sale of Stock [Line Items]
Consideration transferred		$ 2,410
Subsequent Event [Member] \| T & D Equity Acquisition, LLC, Wholly-Owned Subsidiary of NEE [Member] \| Oncor Electric Delivery Company LLC [Member]
Subsidiary, Sale of Stock [Line Items]
Percentage of interests acquired			0.22%
Consideration transferred			$ 27
Subsequent Event [Member] \| WSS Acquisition Company [Member] \| Oncor Electric Delivery Company LLC [Member]
Subsidiary, Sale of Stock [Line Items]
Percentage of interests acquired		20.00%
Subsequent Event [Member] \| CC FN Holdings LLC [Member]
Subsidiary, Sale of Stock [Line Items]
Proceeds from sale of interests in subsidiaries	$ 1,500
FiberNet Long-Term Debt [Member] \| Subsequent Event [Member]
Subsidiary, Sale of Stock [Line Items]
Retirement of debt	$ 370