CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
PROPERTY, PLANT AND EQUIPMENT
Total property, plant and equipment - net	$ 62,894	$ 61,386
CURRENT ASSETS
Customer receivables, allowances	9	13
OTHER ASSETS
Other investments	1,892	1,786
Securitized storm-recovery costs	191	208
CAPITALIZATION
Long-term debt	$ 27,791	$ 26,681
CURRENT LIABILITIES
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	800,000,000	800,000,000
Common Stock, Shares, Outstanding	461,000,000	461,000,000
Related to VIEs [Member]
PROPERTY, PLANT AND EQUIPMENT
Total property, plant and equipment - net	$ 11,458	$ 7,966
OTHER ASSETS
Other investments	486	0
Securitized storm-recovery costs	118	128
CAPITALIZATION
Long-term debt	5,185	684
FPL [Member]
CURRENT ASSETS
Customer receivables, allowances	1	3
OTHER ASSETS
Securitized storm-recovery costs	191	208
CAPITALIZATION
Long-term debt	$ 9,924	$ 9,956
CURRENT LIABILITIES
Common Stock, No Par Value	$ 0	$ 0
Common Stock, Shares Authorized	1,000	1,000
Common Stock, Shares, Outstanding	1,000	1,000
Common Stock, Shares, Issued	1,000	1,000
FPL [Member] | Related to VIEs [Member]
PROPERTY, PLANT AND EQUIPMENT
Total property, plant and equipment - net	$ 118	$ 128
CAPITALIZATION
Long-term debt	$ 176	$ 210