Commitments and Contingencies (Long-term Purchase Commitment) (Details) (USD $)			3 Months Ended																3 Months Ended				0 Months Ended
	Mar. 31, 2014 NextEra Energy Resources [Member]	Mar. 31, 2014 NextEra Energy Resources [Member] Contract Group 1 [Member]	Mar. 31, 2014 FPL [Member]	Mar. 31, 2013 FPL [Member]	Mar. 31, 2014 FPL [Member] Jea And Southern Subsidiaries Contract Range 1 [Member] MW	Mar. 31, 2014 FPL [Member] Jea And Southern Subsidiaries Contract Range 2 [Member] MW	Mar. 31, 2014 FPL [Member] Qualifying Facilities Contracts [Member] MW	Mar. 31, 2014 FPL [Member] Natural Gas, Coal, And Oil, Including Transportation And Storage [Member]	Mar. 31, 2014 FPL [Member] Qualifying Facilities Capacity Payments [Member]		Mar. 31, 2014 FPL [Member] Jea And Southern Subsidiaries Capacity Payments [Member]		Mar. 31, 2014 FPL [Member] Natural Gas, Including Transportation And Storage, Contract Minimum Payments [Member]		Mar. 31, 2014 FPL [Member] Coal Contract Minimum Payments [Member]		Mar. 31, 2014 Corporate and Other [Member]		Mar. 31, 2014 Minimum [Member] NextEra Energy Resources [Member] Contract Group 1 [Member]	Mar. 31, 2014 Minimum [Member] NextEra Energy Resources [Member] Contract Group 2 [Member]	Mar. 31, 2014 Maximum [Member] NextEra Energy Resources [Member] Contract Group 1 [Member]	Mar. 31, 2014 Maximum [Member] NextEra Energy Resources [Member] Contract Group 2 [Member]	May 01, 2017 Scenario, Forecast [Member] FPL [Member] Sabal Trail and Florida Southeast Connection [Member]	Mar. 31, 2014 Sabal Trail Transmission, LLC [Member] Corporate and Other [Member]	Mar. 31, 2014 Sabal Trail and Florida Southeast Connection [Member] FPL [Member] Natural Gas, Including Transportation And Storage, Contract Minimum Payments [Member]
Long-term Commitment (Excluding Unconditional Purchase Obligation) [Abstract]
Minimum annual purchase commitments (in megawatts)					1,330	375
Time period under contracts					through 2015	through 2021																	25-year
Minimum total purchase commitments (in megawatts)							705
Expiration dates of purchase commitments							2024 through 2034	through 2036											June 2014	October 2014	2030	2033
Equity Method Investment, Ownership Percentage																								33.00%
Long Term Purchase Commiment, Initial Quantity Per Day																							400,000
Long Term Purchase Commitment, Increased Volume Required																							600,000
Commitment amount included in capital expenditures		$ 2,400,000,000
Required capacity and/or minimum payments [Abstract]
Remainder of 2014	1,590,000,000								210,000,000	[1]	165,000,000	[1]	1,485,000,000	[2],[3]	50,000,000	[2]	130,000,000	[4],[5]
2015	600,000,000								290,000,000	[1]	195,000,000	[1]	855,000,000	[2],[3]	40,000,000	[2]	250,000,000	[4],[5]
2016	175,000,000								250,000,000	[1]	70,000,000	[1]	685,000,000	[2],[3]	20,000,000	[2]	515,000,000	[4],[5]
2017	105,000,000								255,000,000	[1]	50,000,000	[1]	745,000,000	[2],[3]	0	[2]	50,000,000	[4],[5]							200,000,000
2018	105,000,000								260,000,000	[1]	10,000,000	[1]	825,000,000	[2],[3]	0	[2]	25,000,000	[4],[5]							295,000,000
Thereafter	475,000,000								1,965,000,000	[1]	5,000,000	[1]	14,520,000,000	[2],[3]	0	[2]	50,000,000	[4],[5]							8,535,000,000
Capacity payments			123,000,000	126,000,000
Energy payments			56,000,000	23,000,000
Commitment to invest																	50,000,000
Joint Obligations of NEECH and NEER Included in NEER Amounts, remainder of current year																	320,000,000
Joint Obligations Of NEECH and NEER included NEER Amounts due in the second year																	$ 200,000,000

[1] Capacity charges under these contracts, substantially all of which are recoverable through the capacity cost recovery clause, totaled approximately $123 million and $126 million for the three months ended March 31, 2014 and 2013, respectively. Energy charges under these contracts, which are recoverable through the fuel clause, totaled approximately $56 million and $23 million for the three months ended March 31, 2014 and 2013, respectively

[2] Recoverable through the fuel clause.

[3] Includes approximately $200 million, $295 million and $8,535 million in 2017, 2018 and thereafter, respectively, of firm commitments, subject to certain conditions as noted above, related to the natural gas transportation agreements with Sabal Trail and Florida Southeast Connection.

[4] Excludes approximately $320 million and $200 million in 2014 and 2015, respectively, of joint obligations of NEECH and NEER which are included in the NEER amounts above.

[5] Includes an approximately $50 million commitment to invest in clean power and technology businesses through 2021.