CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions		Total	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]		Retained Earnings [Member] Adoption of accounting standards update [Member]	[3]	Total Common Shareholders' Equity Parent [Member]		Total Common Shareholders' Equity Parent [Member] Adoption of accounting standards update [Member]	[3]	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, 2018			478,000,000
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
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture			1,000,000
Share-based payment activity				30						30
Dividends on common stock	[1]					(598)				(598)
Other comprehensive income (loss)		(24)			(24)					(24)
Other differential membership interests activity														389
Capital contributions from NEE																		250
Other				(5)	(1)	0				(6)				30				1	0
Ending Balance (in shares) at Mar. 31, 2019			479,000,000
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 at Dec. 31, 2018		468
Increase (Decrease) in Temporary Equity [Roll Forward]
Other differential membership interests activity		(394)
Other		(3)
Ending balance at Mar. 31, 2019		$ 71
Increase (Decrease) in Temporary Equity [Roll Forward]
Dividends per share of common stock (in dollars per share)		$ 1.25
Beginning Balance (in shares) at Dec. 31, 2018			478,000,000
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)		2,544													1,934	[2]
Other comprehensive income (loss)		8
Impact of disposal of a business		0
Capital contributions from NEE															250
Ending Balance (in shares) at Sep. 30, 2019			489,000,000
Ending Balance at Sep. 30, 2019		40,174	$ 5	11,933	(181)	24,835				36,592				3,582	20,998		1,373	10,852	8,773
Beginning balance at Dec. 31, 2018		468
Ending balance at Sep. 30, 2019		66
Beginning Balance (in shares) at Mar. 31, 2019			479,000,000
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)						1,234				1,234				(95)					663
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture			0
Share-based payment activity				47						47
Dividends on common stock						(599)	[1]			(599)	[1]								(1,400)
Other comprehensive income (loss)		22			22					22
Other differential membership interests activity														(146)
Other				(20)		0				(20)				143				(1)	0
Ending Balance (in shares) at Jun. 30, 2019			479,000,000
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 at Mar. 31, 2019		71
Increase (Decrease) in Temporary Equity [Roll Forward]
Other		(3)
Ending balance at Jun. 30, 2019		$ 68
Increase (Decrease) in Temporary Equity [Roll Forward]
Dividends per share of common stock (in dollars per share)		$ 1.25
Net Income (loss)		$ 798				879				879				(81)	683	[2]			683
Issuances of common stock - net			10,000,000
Premium on equity units				(120)						(120)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture			0
Share-based payment activity				39						39
Dividends on common stock						(600)	[1]			(600)	[1]								(800)
Other comprehensive income (loss)		10			10					10
Issuances of common stock/equity units - net				1,470						1,470
Impact of disposal of a business		0
Other differential membership interests activity				0						0				133
Other				2		2				4				14				1	(1)
Ending Balance (in shares) at Sep. 30, 2019			489,000,000
Ending Balance at Sep. 30, 2019		40,174	$ 5	11,933	(181)	24,835				36,592				3,582	20,998		1,373	10,852	8,773
Increase (Decrease) in Temporary Equity [Roll Forward]
Other		(2)
Ending balance at Sep. 30, 2019		$ 66
Increase (Decrease) in Temporary Equity [Roll Forward]
Dividends per share of common stock (in dollars per share)		$ 1.25
Retained earnings		$ 25,199						$ (11)				$ (11)			$ 9,174
Beginning Balance (in shares) at Dec. 31, 2019		489,000,000	489,000,000												1,000
Beginning Balance at Dec. 31, 2019		$ 41,360	$ 5	11,970	(169)	25,199				37,005				4,355	$ 21,398		1,373	10,851	9,174
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (loss)						421				421				(112)					642
Premium on equity units				(253)						(253)
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture			0
Share-based payment activity				4						4
Dividends on common stock	[4]					(685)				(685)
Other comprehensive income (loss)		(39)			(33)					(33)				(6)
Issuances of common stock/equity units - net				(51)						(51)
Impact of disposal of a business	[5]				10					10				0
Other differential membership interests activity				(2)						(2)				219
Capital contributions from NEE																		1,200
Other				0	0	(2)				(2)				16
Ending Balance (in shares) at Mar. 31, 2020			489,000,000
Ending Balance at Mar. 31, 2020		40,875	$ 5	11,668	(192)	24,922				36,403				4,472	$ 23,240		1,373	12,051	9,816
Beginning balance at Dec. 31, 2019		487
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income (loss)		(1)
Other differential membership interests activity		(248)
Ending balance at Mar. 31, 2020		$ 238
Increase (Decrease) in Temporary Equity [Roll Forward]
Dividends per share of common stock (in dollars per share)		$ 1.40
Beginning Balance (in shares) at Dec. 31, 2019		489,000,000	489,000,000												1,000
Beginning Balance at Dec. 31, 2019		$ 41,360	$ 5	11,970	(169)	25,199				37,005				4,355	$ 21,398		1,373	10,851	9,174
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (loss)		2,559													2,148	[2]
Other comprehensive income (loss)		6
Impact of disposal of a business		$ 10
Capital contributions from NEE															$ 1,900
Ending Balance (in shares) at Sep. 30, 2020		490,000,000	490,000,000												1,000
Ending Balance at Sep. 30, 2020		$ 42,062	$ 5	11,380	(152)	26,054				37,287				4,775	$ 23,687		1,373	12,752	9,562
Beginning balance at Dec. 31, 2019		487
Ending balance at Sep. 30, 2020		165
Beginning Balance (in shares) at Mar. 31, 2020			489,000,000
Beginning Balance at Mar. 31, 2020		40,875	$ 5	11,668	(192)	24,922				36,403				4,472	23,240		1,373	12,051	9,816
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (loss)						1,275				1,275				(144)					749
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture			1,000,000
Share-based payment activity				55						55
Dividends on common stock	[4]					(686)				(686)
Other comprehensive income (loss)		32			29					29				3
Other differential membership interests activity				(5)						(5)				153
Capital contributions from NEE																		700
Other				2						2				17				1	(1)
Ending Balance (in shares) at Jun. 30, 2020			490,000,000
Ending Balance at Jun. 30, 2020		41,574	$ 5	11,720	(163)	25,511				37,073				4,501	24,689		1,373	12,752	10,564
Beginning balance at Mar. 31, 2020		238
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income (loss)		(2)
Other differential membership interests activity		55
Ending balance at Jun. 30, 2020		$ 291
Increase (Decrease) in Temporary Equity [Roll Forward]
Dividends per share of common stock (in dollars per share)		$ 1.40
Net Income (loss)		$ 1,123				1,229				1,229				(105)	$ 757	[2]			757
Premium on equity units				(334)						(334)
Share-based payment activity				43						43
Dividends on common stock						(686)	[4]			(686)	[4]								(1,760)
Other comprehensive income (loss)		13			11					11				2
Issuances of common stock/equity units - net				(41)						(41)
Impact of disposal of a business		$ 0
Other differential membership interests activity				(6)						(6)				348
Other				(2)		0				(2)				29				0	1
Ending Balance (in shares) at Sep. 30, 2020		490,000,000	490,000,000												1,000
Ending Balance at Sep. 30, 2020		$ 42,062	$ 5	$ 11,380	$ (152)	$ 26,054				$ 37,287				$ 4,775	$ 23,687		$ 1,373	$ 12,752	$ 9,562
Increase (Decrease) in Temporary Equity [Roll Forward]
Net income (loss)		(1)
Other differential membership interests activity		(125)
Ending balance at Sep. 30, 2020		$ 165
Increase (Decrease) in Temporary Equity [Roll Forward]
Dividends per share of common stock (in dollars per share)		$ 1.40
Retained earnings		$ 26,054													$ 9,562

[1] Dividends per share were $1.25 for all quarterly periods presented

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

[3] See Note 11 - Measurement of Credit Losses on Financial Instruments.

[4] Dividends per share were $1.40 for all quarterly periods presented.

[5] See Note 11 - Disposal of Businesses.