Amount of noncurrent derivative liability classified as current derivative liability due to event of default.

No definition available.

Name:	nee_Amountofnoncurrentderivativeliabilityclassifiedascurrentderivativeliabilityduetoeventofdefault.
Namespace Prefix:	nee_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Commitments and Contingencies (Spain Solar Projects) (Details) In Millions, unless otherwise specified	Jun. 30, 2014 NextEra Energy Resources [Member] USD ($)	Jun. 30, 2014 Standby Letters of Credit [Member] Capital Holdings [Member] USD ($)	Jun. 30, 2014 Standby Letters of Credit [Member] Capital Holdings [Member] EUR (€)	Jun. 30, 2014 Performance Guarantee [Member] Capital Holdings [Member] USD ($)	Jun. 30, 2014 Performance Guarantee [Member] Capital Holdings [Member] EUR (€)
Loss Contingencies [Line Items]
Letters of Credit Outstanding, Amount		$ 50	€ 37	$ 14	€ 10
Amount of debt outstanding under financing agreements related to Spain solar projects	751
Amount of noncurrent derivative liability classified as current derivative liability due to event of default	$ 119