CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) shares in Millions, $ in Millions		Total		Common Stock [Member]	Additional Paid-in Capital [Member]		Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]		Total Common Shareholders' Equity Parent [Member]		Noncontrolling Interest [Member]		FPL [Member]	FPL [Member] Common Stock [Member]	FPL [Member] Additional Paid-in Capital [Member]	FPL [Member] Retained Earnings [Member]
Beginning Balance (in shares) at Dec. 31, 2017				471
Beginning Balance at Dec. 31, 2017		$ 29,531	[1]	$ 5	$ 9,100	[1]	$ 111	$ 19,020	[1]	$ 28,236	[1]	$ 1,295	[1]	$ 17,040	$ 1,373	$ 8,291	$ 7,376
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (loss)		3,834	[2],[3]					4,431	[1]	4,431	[1]	(597)	[1]				484
Share-based payment activity	[1]				5					5
Dividends on common stock	[1],[4]							(523)		(523)
Other comprehensive loss		(19)	[2]				(19)			(19)	[1]
Impact of NEP deconsolidation	[5]						58			58	[1]	(2,700)	[1]
Differential membership interests activity	[1]									(14)
Capital contributions from NEE																850
Other					1	[1]		(1)	[1]								(7)
Ending Balance (in shares) at Mar. 31, 2018				471
Ending Balance at Mar. 31, 2018		$ 36,017	[1]	$ 5	9,696	[1]	(178)	23,207	[1]	32,730	[1]	3,287	[1]	18,367	1,373	9,141	7,853
Beginning Balance (in shares) at Dec. 31, 2018		478		478
Beginning Balance at Dec. 31, 2018		$ 37,413		$ 5	10,490		(188)	23,837		34,144		3,269		21,014	1,373	10,601	9,040
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (loss)		606						680		680		(74)					588
Share-based payment activity (in shares)				1
Share-based payment activity					30					30
Dividends on common stock	[6]							(598)		(598)
Other comprehensive loss		$ (24)					(24)			(24)
Differential membership interests activity										389
Capital contributions from NEE																250
Other					(5)		(1)			(6)		30				1
Ending Balance (in shares) at Mar. 31, 2019		479		479
Ending Balance at Mar. 31, 2019		$ 37,840		$ 5	$ 10,515		$ (213)	$ 23,919		$ 34,226		$ 3,614		$ 21,853	$ 1,373	$ 10,852	$ 9,628

[1] Amounts have been retrospectively adjusted for an accounting standards update related to leases.

[2] Amounts have been retrospectively adjusted for an accounting standards update related to leases.

[3] Amounts have been retrospectively adjusted for an accounting standards update related to leases.

[4] Dividends per share were $1.11

[5] See Note 2

[6] Dividends per share were $1.25.