For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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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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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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-Publisher FASB
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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

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Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended
Revenue Recognition (Details) - USD ($) $ in Millions	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 3,900	$ 3,800
FPL [Member]
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	2,500	$ 2,600
Unbilled revenues			$ 389
FPL [Member]
Disaggregation of Revenue [Line Items]
Unbilled revenues	434
NextEra Energy Resources [Member]
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation	$ 965
Revenue Benchmark [Member] \| FPL [Member]
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	90.00%