Debt (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2011
NextEra Energy Resources [Member] | Canadian revolving credit facilities [Member]
Debt Instrument [Line Items]
Date Issued	January - April 2011
Interest Rate Terms	Variable	[1]
Principal Amount	$ 135
Maturity Date	2013
NextEra Energy Resources [Member] | Senior secured limited recourse notes [Member]
Debt Instrument [Line Items]
Date Issued	February 2011
Interest Rate (in hundredths)	6.25%
Principal Amount	82
Maturity Date	2031
NextEra Energy Resources [Member] | Eurodollar denominated senior secured limited recourse loan due 2030 [Member]
Debt Instrument [Line Items]
Date Issued	April - June 2011
Interest Rate Terms	Variable	[1],[2]
Principal Amount	181
Maturity Date	2030
NextEra Energy Resources [Member] | Eurodollar denominated senior secured limited recourse loan due 2015 [Member]
Debt Instrument [Line Items]
Date Issued	April - June 2011
Interest Rate Terms	Variable	[1]
Principal Amount	16
Maturity Date	2015
NextEra Energy Resources [Member] | Eurodollar denominated revolving loan [Member]
Debt Instrument [Line Items]
Date Issued	June 2011
Interest Rate Terms	Variable	[1]
Principal Amount	7
Maturity Date	2014
FPL [Member] | First mortgage bonds [Member]
Debt Instrument [Line Items]
Date Issued	June 2011
Interest Rate (in hundredths)	5.125%
Principal Amount	250
Maturity Date	2041
Capital Holdings [Member] | Debentures [Member]
Debt Instrument [Line Items]
Date Issued	June 2011
Interest Rate (in hundredths)	4.50%
Principal Amount	400
Maturity Date	2021
Capital Holdings [Member] | Japanese yen denominated term loan [Member]
Debt Instrument [Line Items]
Date Issued	June 2011
Interest Rate Terms	Variable	[1],[3]
Principal Amount	$ 424
Maturity Date	2014

[1] Variable rate is based on an underlying index plus a margin.

[2] Interest rate swap agreements were entered into with respect to these issuances.

[3] Cross currency basis swap agreements were entered into with respect to both interest and principal payments on this loan.