Segment Information (Details)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Percentage of operating revenues derived from the sale of electricity (in hundredths)	90.00%	92.00%	91.00%
Maximum percentage of operating revenues from foreign sources (in hundredths)	2.00%	2.00%	2.00%
Maximum percentage of long-lived assets located in foreign countries (in hundredths)	3.00%	3.00%	3.00%
NEER [Member]
Segment Reporting Information [Line Items]
Deemed capital structure of NextEra Energy Resources (in hundredths)	70.00%
NEER [Member]
Segment Reporting Information [Line Items]
Deemed capital structure of NextEra Energy Resources (in hundredths)	70.00%

Deemed capital structure of subsidiary for purposes of allocating interest expense.

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- Definition

The maximum percentage of long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets, located in foreign countries in total in which the entity holds assets.

+ References

No definition available.

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- Definition

The maximum percentage of revenues from external customers attributed to all foreign countries in total from which the entity derives revenues.

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No definition available.

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- Definition

The approximate percentage of total operating revenues derived from the sale of electricity during the period.

+ References

No definition available.

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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.

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No definition available.

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