CONSOLIDATED STATEMENTS OF COMMON SHAREHOLDERS' EQUITY - USD ($) $ in Millions		Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Unearned ESOP Compensation [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Total common Shareholders' Equity [Member]	Noncontrolling Interest [Member]	FPL [Member]		FPL [Member] Common Stock [Member]	FPL [Member] Additional Paid-in Capital [Member]	FPL [Member] Retained Earnings [Member]
Balances (in shares) at Dec. 31, 2013			435,000,000
Beginning Balance at Dec. 31, 2013		$ 18,040	$ 4	$ 6,437	$ (26)	$ 56	$ 11,569	$ 18,040	$ 0
BEGINNING BALANCE at Dec. 31, 2013										$ 13,084		$ 1,373	$ 6,179	$ 5,532
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		2,469					2,465	2,465	4
NET INCOME		2,465								1,517	[1]			1,517
Issuances of common stock, net of issuance cost of less than $1				604	3			607
Issuances of common stock, net of issuance cost (in shares)			7,000,000
Exercise of stock options and other incentive plan activity				102				102
Exercise of stock options and other incentive plan activity (in shares)			1,000,000
Dividends on common stock	[2]						(1,261)	(1,261)
Other comprehensive income (loss)		(98)				(96)		(96)	(2)
NEP acquisition of limited partner interest in NEP OpCo									232
Capital contributions from NEE										100			100
Dividends to NEE														(1,550)
Other				50	9			59	18
ENDING BALANCE at Dec. 31, 2014										13,151		1,373	6,279	5,499
Ending Balance at Dec. 31, 2014		20,168	$ 4	7,193	(14)	(40)	12,773	19,916	252
Balance (in shares) at Dec. 31, 2014			443,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		2,762					2,752	2,752	10
NET INCOME		2,752								1,648	[1]			1,648
Issuances of common stock, net of issuance cost of less than $1			$ 1	1,302	4			1,307
Issuances of common stock, net of issuance cost (in shares)			17,000,000
Dividends on common stock	[2]						(1,385)	(1,385)
Other comprehensive income (loss)		(138)				(127)		(127)	(11)
Premium on equity units				(80)				(80)
Sale of NEER Assets to NEP				88				88	252
Capital contributions from NEE										1,454			1,454
Dividends to NEE														(700)
Other (in shares)			1,000,000
Other				94	9			103	35
ENDING BALANCE at Dec. 31, 2015		22,574								15,553		1,373	7,733	6,447
Ending Balance at Dec. 31, 2015		$ 23,112	$ 5	8,597	(1)	(167)	14,140	22,574	538	$ 15,553
Balance (in shares) at Dec. 31, 2015		461,000,000	461,000,000							1,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 3,005					2,912	2,912	93
NET INCOME		2,912								$ 1,727	[1]			1,727
Issuances of common stock, net of issuance cost of less than $1				527				527
Issuances of common stock, net of issuance cost (in shares)			6,000,000
Dividends on common stock	[2]						(1,612)	(1,612)
Other comprehensive income (loss)		97				97		97
Premium on equity units				(200)				(200)
Sale of NEER Assets to NEP				0					433
Capital contributions from NEE										600			600
Dividends to NEE														(1,300)
Other (in shares)			1,000,000
Other				24	1		18	43	(74)				(1)	1
ENDING BALANCE at Dec. 31, 2016		24,341								16,580		$ 1,373	$ 8,332	$ 6,875
Ending Balance at Dec. 31, 2016		$ 25,331	$ 5	$ 8,948	$ 0	$ (70)	$ 15,458	$ 24,341	$ 990	$ 16,580
Balance (in shares) at Dec. 31, 2016		468,000,000	468,000,000							1,000

[1] FPL's comprehensive income is the same as reported net income

[2] Dividends per share were $3.48, $3.08 and $2.90 for the years ended December 31, 2016, 2015 and 2014, respectively.