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)								4,431	[1]	4,431	[1]	(597)	[1]				484
Share-based payment activity	[1]				5					5
Dividends on common stock	[1],[2]							(523)		(523)
Other comprehensive income (loss)		(19)					(19)			(19)	[1]
Impact of NEP deconsolidation	[3]						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, 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)	[4],[5]	4,521
Other comprehensive income (loss)	[5]	(14)
Ending Balance (in shares) at Jun. 30, 2018				472
Ending Balance at Jun. 30, 2018		36,182	[1]	$ 5	9,734	[1]	(173)	23,465	[1]	33,031	[1]	3,151	[1]	18,993	1,373	9,141	8,479
Beginning Balance (in shares) at Mar. 31, 2018				471
Beginning 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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (loss)		687	[5],[6]					781	[1]	781	[1]	(94)	[1]				626
Share-based payment activity (in shares)				1
Share-based payment activity	[1]				38					38
Dividends on common stock	[1],[2]							(524)		(524)
Other comprehensive income (loss)		5	[5]				5			5	[1]
Differential membership interests activity	[1]											(46)
Other	[1]							1		1		4
Ending Balance (in shares) at Jun. 30, 2018				472
Ending Balance at Jun. 30, 2018		$ 36,182	[1]	$ 5	9,734	[1]	(173)	23,465	[1]	33,031	[1]	3,151	[1]	18,993	1,373	9,141	8,479
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)								680		680		(74)					588
Share-based payment activity (in shares)				1
Share-based payment activity					30					30
Dividends on common stock	[7]							(598)		(598)
Other comprehensive income (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
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
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)		1,745
Other comprehensive income (loss)		$ (2)
Ending Balance (in shares) at Jun. 30, 2019		479		479
Ending Balance at Jun. 30, 2019		$ 38,426		$ 5	10,542		(191)	24,554		34,910		3,516		21,115	1,373	10,851	8,891
Beginning Balance (in shares) at Mar. 31, 2019				479
Beginning 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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (loss)		1,139						1,234		1,234		(95)					663
Share-based payment activity					47					47
Dividends on common stock								(599)	[7]	(599)	[7]						(1,400)
Other comprehensive income (loss)		$ 22					22			22
Differential membership interests activity												(146)
Other					(20)					(20)		143				(1)
Ending Balance (in shares) at Jun. 30, 2019		479		479
Ending Balance at Jun. 30, 2019		$ 38,426		$ 5	$ 10,542		$ (191)	$ 24,554		$ 34,910		$ 3,516		$ 21,115	$ 1,373	$ 10,851	$ 8,891

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

[2] Dividends per share were $1.11 and $1.11 for the three months ended June 30, 2018 and March 31, 2018, respectively.

[3] See Note 2.

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

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

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

[7] Dividends per share were $1.25 and $1.25 for the three months ended June 30, 2019 and March 31, 2019, respectively.