CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Total property, plant and equipment - net	$ 61,386	$ 55,705
Customer receivables, net of allowances	13	27
Securitized storm-recovery costs	$ 208	$ 294
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized (in shares)	800,000,000	800,000,000
Common stock, outstanding (in shares)	461,000,000	443,000,000
Long-term debt	$ 26,681	$ 24,044
Related to VIEs [Member]
Total property, plant and equipment - net	7,966	6,414
Securitized storm-recovery costs	128	180
Long-term debt	684	1,077
FPL [Member]
Customer receivables, net of allowances	3	5
Securitized storm-recovery costs	$ 208	$ 294
Common stock, authorized (in shares)	1,000	1,000
Common stock, par value	$ 0	$ 0
Common stock, issued (in shares)	1,000	1,000
Common stock, outstanding (in shares)	1,000	1,000
Long-term debt	$ 9,956	$ 9,328
FPL [Member] | Related to VIEs [Member]
Securitized storm-recovery costs	128	180
Long-term debt	$ 210	$ 273