Debt (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Capital Holdings [Member] | Debentures [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.70%	[1]
Principal Amount	$ 350
NextEra Energy Resources subsidiary [Member] | Canadian revolving credit agreements [Member]
Debt Instrument [Line Items]
Interest Rate Terms	Variable	[2]
Proceeds from Issuance of Debt	245
NextEra Energy Resources subsidiary [Member] | senior secured limited-recourse term loan due 2019 [Member]
Debt Instrument [Line Items]
Interest Rate Terms	Variable	[2]
Principal Amount	$ 44

[1] An interest rate swap agreement has been entered into with respect to this issuance. See Note 2.

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