v3.7.0.1

Income Taxes (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($) MW	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($) MW
Income Tax Contingency [Line Items]
Effective income tax rate (as a percent)	26.00%	29.00%	29.00%	28.00%
Production tax credits	$ 30	$ 31	$ 58	$ 73
Deferred income tax benefit associated with convertible investment tax credits	$ 42	43	$ 169	$ 79
Production tax credit (PTC), roll off period			10 years
Reorganization Value, Income Tax Benefits Associated with Reorganization of Certain Assets		30
Merchant Natural Gas Generation Facilities [Member] | NextEra Energy Resources subsidiary [Member]
Income Tax Contingency [Line Items]
Income Tax Charge Related to Sale of Asset		$ 58
Renewable Energy Assets, Power Generation Capacity | MW		2,884		2,884

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Deferred income tax benefit related to the difference between the financial statement and tax bases of renewable property.

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Renewable Energy Assets, Power Generation Capacity

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

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A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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