Florida Power & Light 10-Q 23 Oct 20 2020 Q3 Quarterly report Financial data

Document Entity Information

Document Entity Information	9 Months Ended
	Sep. 30, 2020shares
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	1-8841
Entity Tax Identification Number	59-2449419
Entity Address, Address Line One	700 Universe Boulevard
Entity Address, City or Town	Juno Beach
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33408
City Area Code	561
Local Phone Number	694-4000
Entity Incorporation, State or Country Code	FL
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	489,768,531
Entity Registrant Name	NEXTERA ENERGY INC
Entity Central Index Key	0000753308
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
Common Stock [Member]
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, $0.01 Par Value
Trading Symbol	NEE
Security Exchange Name	NYSE
Corporate Units [Member]
Entity Information [Line Items]
Title of 12(b) Security	4.872% Corporate Units
Trading Symbol	NEE.PRO
Security Exchange Name	NYSE
Corporate Units 5.279% [Member]
Entity Information [Line Items]
Title of 12(b) Security	5.279% Corporate Units
Trading Symbol	NEE.PRP
Security Exchange Name	NYSE
Corporate Units 6.219% [Member]
Entity Information [Line Items]
Title of 12(b) Security	6.219% Corporate Units
Trading Symbol	NEE.PRQ
Security Exchange Name	NYSE
FPL [Member]
Entity Information [Line Items]
Entity File Number	2-27612
Entity Tax Identification Number	59-0247775
Entity Incorporation, State or Country Code	FL
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	1,000
Entity Registrant Name	FLORIDA POWER & LIGHT CO
Entity Central Index Key	0000037634
Current Fiscal Year End Date	--12-31

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
OPERATING REVENUES		$ 4,785	$ 5,572	$ 13,602	$ 14,616
OPERATING EXPENSES (INCOME)
Fuel, purchased power and interchange		1,111	1,266	2,663	3,308
Other operations and maintenance		922	863	2,656	2,576
Depreciation and amortization		1,279	1,295	3,108	3,247
Losses (gains) on disposal of businesses/assets - net		11	2	(279)	(378)
Taxes other than income taxes and other - net		454	553	1,278	1,387
Total operating expenses - net		3,777	3,979	9,426	10,140
OPERATING INCOME		1,008	1,593	4,176	4,476
OTHER INCOME (DEDUCTIONS)
Interest expense		(208)	(746)	(1,839)	(2,061)
Equity in earnings (losses) of equity method investees		249	(90)	13	(80)
Allowance for equity funds used during construction		22	14	64	51
Interest income		7	16	31	41
Gains on disposal of investments and other property - net		16	6	42	37
Change in unrealized gains (losses) on equity securities held in NEER's nuclear decommissioning funds - net		87	1	(23)	157
Other net periodic benefit income		50	50	149	136
Other - net		21	12	25	43
Total other income (deductions) - net		244	(737)	(1,538)	(1,676)
INCOME BEFORE INCOME TAXES		1,252	856	2,638	2,800
INCOME TAXES		129	58	79	256
Net Income (Loss)		1,123	798	2,559	2,544
NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS		106	81	365	250
Net Income (Loss) Attributable to Parent		$ 1,229	$ 879	$ 2,924	$ 2,794
Earnings per share of common stock:
Basic (in dollars per share)		$ 2.51	$ 1.82	$ 5.97	$ 5.82
Assuming dilution (in dollars per share)		$ 2.50	$ 1.81	$ 5.94	$ 5.78
FPL [Member]
OPERATING REVENUES		$ 3,455	$ 3,491	$ 8,820	$ 9,267
OPERATING EXPENSES (INCOME)
Fuel, purchased power and interchange		839	943	1,936	2,478
Other operations and maintenance		364	345	1,041	1,070
Depreciation and amortization		823	853	1,775	2,005
Taxes other than income taxes and other - net		369	377	1,027	1,029
Total operating expenses - net		2,395	2,518	5,779	6,582
OPERATING INCOME		1,060	973	3,041	2,685
OTHER INCOME (DEDUCTIONS)
Interest expense		(147)	(152)	(450)	(442)
Allowance for equity funds used during construction		14	11	44	46
Other - net		(1)	2	(1)	3
Total other income (deductions) - net		(134)	(139)	(407)	(393)
INCOME BEFORE INCOME TAXES		926	834	2,634	2,292
INCOME TAXES		169	151	486	358
Net Income (Loss)	[1]	$ 757	$ 683	$ 2,148	$ 1,934
[1]	FPL's comprehensive income is the same as reported net income.

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
NET INCOME	$ 1,123	$ 798	$ 2,559	$ 2,544
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX
Reclassification of unrealized losses on cash flow hedges from accumulated other comprehensive income (loss) to net income	2	6	7	24
Net unrealized gains (losses) on available for sale securities:
Net unrealized gains (losses) on securities still held	3	4	9	19
Reclassification from accumulated other comprehensive income (loss) to net income	(1)	(1)	(2)	0
Net unrealized gain (loss) and unrecognized prior service benefit (cost)	0	0	0	(53)
Reclassification from accumulated other comprehensive income (loss) to net income	1	(1)	2	(2)
Net unrealized gains (losses) on foreign currency translation	8	1	(10)	19
Other comprehensive income (loss) related to equity method investees	0	1	0	1
Total other comprehensive income, net of tax	13	10	6	8
IMPACT OF DISPOSAL OF A BUSINESS (NET OF $19 TAX BENEFIT)	0	0	10	0
COMPREHENSIVE INCOME	1,136	808	2,575	2,552
COMPREHENSIVE LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	104	81	366	250
COMPREHENSIVE INCOME ATTRIBUTABLE TO NEE	$ 1,240	$ 889	$ 2,941	$ 2,802

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Tax expense (benefit) on cash flow hedges reclassified from AOCI to net income	$ (1)	$ 1	$ (2)	$ 5
Tax expense (benefit) of unrealized gains/losses on available for sale securities still held	1	2	3	8
Tax expense (benefit) on available for sale securities reclassified from AOCI to net income	1	(1)	1	(1)
Tax expense (benefit) of defined benefit pension and other benefits plans	0	0	0	(16)
Tax expense (benefit) of defined benefit pension and other benefits plans reclassified from AOCI to net income	(1)	(1)	(1)	(1)
Tax expense (benefit) of other comprehensive income (loss) related to equity method investees	0	1	0	1
Tax benefit of disposal of a business	$ 0	$ 0	$ (19)	$ 0

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
PROPERTY, PLANT AND EQUIPMENT
Electric plant in service and other property	$ 101,485	$ 96,093
Nuclear fuel	1,611	1,755
Construction work in progress	12,279	9,330
Accumulated depreciation and amortization	(26,520)	(25,168)
Total property, plant and equipment - net	88,855	82,010
CURRENT ASSETS
Cash and cash equivalents	1,961	600
Customer receivables, net of allowances	2,572	2,282
Other receivables	705	525
Materials, supplies and fossil fuel inventory	1,414	1,328
Regulatory assets	394	335
Derivatives	441	762
Other	1,539	1,576
Total current assets	9,026	7,408
OTHER ASSETS
Special use funds	7,175	6,954
Investment in equity method investees	7,144	7,453
Prepaid benefit costs	1,532	1,437
Regulatory assets	3,291	3,287
Derivatives	1,622	1,624
Goodwill	4,214	4,204
Other	3,523	3,314
Total other assets	28,501	28,273
TOTAL ASSETS	126,382	117,691
CAPITALIZATION
Common stock	5	5
Additional paid-in capital	11,380	11,970
Retained earnings	26,054	25,199
Accumulated other comprehensive loss	(152)	(169)
Total common shareholders' equity	37,287	37,005
Noncontrolling interests	4,775	4,355
Total equity	42,062	41,360
Redeemable noncontrolling interests	165	487
Long-term debt	42,794	37,543
Total capitalization	85,021	79,390
CURRENT LIABILITIES
Commercial paper	0	2,516
Other short-term debt	458	400
Current portion of long-term debt	5,044	2,124
Accounts Payable	4,744	3,631
Customer deposits	494	499
Accrued interest and taxes	1,170	558
Derivatives	310	344
Accrued construction-related expenditures	1,128	1,152
Regulatory liabilities	291	320
Other	2,073	2,309
Total current liabilities	15,712	13,853
OTHER LIABILITIES AND DEFERRED CREDITS
Asset retirement obligations	3,554	3,457
Deferred income taxes	8,237	8,361
Regulatory liabilities	10,042	9,936
Derivatives	1,580	863
Other	2,236	1,831
Total other liabilities and deferred credits	25,649	24,448
COMMITMENTS AND CONTINGENCIES
TOTAL CAPITALIZATION AND LIABILITIES	126,382	117,691
FPL [Member]
ELECTRIC UTILITY PLANT AND OTHER PROPERTY
Plant in service and other property	56,802	54,523
Nuclear fuel	1,123	1,153
Construction work in progress	4,129	3,351
Accumulated depreciation and amortization	(14,295)	(13,953)
Total electric utility plant and other property - net	47,759	45,074
CURRENT ASSETS
Cash and cash equivalents	114	77
Customer receivables, net of allowances	1,396	1,024
Other receivables	351	333
Materials, supplies and fossil fuel inventory	781	722
Regulatory assets	264	227
Other	162	136
Total current assets	3,068	2,519
OTHER ASSETS
Special use funds	4,945	4,771
Prepaid benefit costs	1,534	1,477
Regulatory assets	2,351	2,549
Goodwill	300	300
Other	546	498
Total other assets	9,676	9,595
TOTAL ASSETS	60,503	57,188
CAPITALIZATION
Common stock	1,373	1,373
Additional paid-in capital	12,752	10,851
Retained earnings	9,562	9,174
Total equity	23,687	21,398
Long-term debt	15,730	14,131
Total capitalization	39,417	35,529
CURRENT LIABILITIES
Commercial paper	0	1,482
Current portion of long-term debt	79	30
Accounts Payable	850	768
Customer deposits	451	459
Accrued interest and taxes	894	266
Accrued construction-related expenditures	372	426
Regulatory liabilities	260	284
Other	485	510
Total current liabilities	3,391	4,225
OTHER LIABILITIES AND DEFERRED CREDITS
Asset retirement obligations	2,331	2,268
Deferred income taxes	5,615	5,415
Regulatory liabilities	9,344	9,296
Other	405	455
Total other liabilities and deferred credits	17,695	17,434
COMMITMENTS AND CONTINGENCIES
TOTAL CAPITALIZATION AND LIABILITIES	$ 60,503	$ 57,188

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Total property, plant and equipment - net	$ 88,855	$ 82,010
Customer receivables, allowances	67	19
Long-term debt	42,794	37,543
Current portion of long-term debt	5,044	2,124
Accounts Payable	$ 4,744	$ 3,631
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	800,000,000	800,000,000
Common stock, shares, outstanding (in shares)	490,000,000	489,000,000
Related to VIE [Member]
Total property, plant and equipment - net	$ 12,520	$ 11,893
Noncontrolling interest in variable interest entity	4,769	4,350
Long-term debt	478	498
Current portion of long-term debt	27	27
Accounts Payable	441	468
FPL [Member]
Customer receivables, allowances	34	3
Long-term debt	15,730	14,131
Current portion of long-term debt	79	30
Accounts Payable	$ 850	$ 768
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	1,000	1,000
Common stock, shares, outstanding (in shares)	1,000	1,000
Common stock, shares, issued (in shares)	1,000	1,000

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income		$ 2,559	$ 2,544
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		3,108	3,247
Nuclear fuel and other amortization		184	190
Unrealized losses on marked to market derivative contracts – net		952	135
Foreign currency transaction losses		5	10
Deferred income taxes		(44)	125
Cost recovery clauses and franchise fees		(34)	93
Equity in losses (earnings) of equity method investees		(13)	80
Distributions of earnings from equity method investees		339	337
Gains on disposal of businesses, assets and investments – net		(321)	(415)
Other - net		131	(74)
Changes in operating assets and liabilities:
Current assets		(513)	(310)
Noncurrent assets		(169)	(87)
Current liabilities		414	356
Noncurrent liabilities		33	12
Net cash provided by operating activities		6,631	6,243
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(4,379)	(3,603)
Acquisition and capital expenditures of Gulf Power		(859)	(4,928)
Independent power and other investments of NEER		(3,908)	(4,628)
Nuclear fuel purchases		(158)	(245)
Other capital expenditures, acquisitions and other investments		(8)	(209)
Sale of independent power and other investments of NEER		178	1,228
Proceeds from sale or maturity of securities in special use funds		3,163	2,812
Purchases of securities in special use funds		(3,306)	(2,901)
Other - net		71	11
Net cash used in investing activities		(9,206)	(12,463)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt, including premiums and discounts		11,898	10,913
Retirements of long-term debt		(3,690)	(3,561)
Proceeds from differential membership investors		572	190
Net change in commercial paper		(2,516)	(234)
Proceeds from other short-term debt		2,158	0
Repayments of other short-term debt		(2,100)	(4,725)
Payments from related parties under a cash sweep and credit support agreement – net		70	460
Issuances of common stock/equity units - net		(100)
Issuances of common stock/equity units - net			1,488
Dividends		(2,057)	(1,797)
Other - net		(321)	(211)
Net cash provided by (used in) financing activities		3,914	2,523
Effects of currency translation on cash, cash equivalents and restricted cash		(10)	2
Net increase (decrease) in cash, cash equivalents and restricted cash		1,329	(3,695)
Cash, cash equivalents and restricted cash at beginning of period		1,108	5,253
Cash, cash equivalents and restricted cash at end of period		2,437	1,558
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		4,612	2,071
Increase in property, plant and equipment related to an acquisition		353	0
Decrease in joint venture investments related to an acquisition		145	0
FPL [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	[1]	2,148	1,934
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		1,775	2,005
Nuclear fuel and other amortization		123	130
Deferred income taxes		264	48
Cost recovery clauses and franchise fees		(30)	104
Other - net		31	(19)
Changes in operating assets and liabilities:
Current assets		(460)	(318)
Noncurrent assets		(69)	(47)
Current liabilities		588	403
Noncurrent liabilities		(32)	(6)
Net cash provided by operating activities		4,338	4,234
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(4,379)	(3,603)
Nuclear fuel purchases		(122)	(150)
Proceeds from sale or maturity of securities in special use funds		1,964	1,798
Purchases of securities in special use funds		(2,027)	(1,885)
Other - net		(22)	31
Net cash used in investing activities		(4,586)	(3,809)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt, including premiums and discounts		2,952	2,493
Retirements of long-term debt		(1,291)	(85)
Net change in commercial paper		(1,482)	(811)
Capital contributions from NEE		1,900	250
Dividends		(1,760)	(2,200)
Other - net		(37)	(38)
Net cash provided by (used in) financing activities		282	(391)
Net increase (decrease) in cash, cash equivalents and restricted cash		34	34
Cash, cash equivalents and restricted cash at beginning of period		195	254
Cash, cash equivalents and restricted cash at end of period		229	288
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		$ 665	$ 557
[1]	FPL's comprehensive income is the same as reported net income.

CONDENSED CONSOLIDATED STATEM_5

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
[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.

Revenue Recognition

Revenue Recognition	9 Months Ended
	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue Recognition	Revenue from Contracts with Customers FPL and NEER generate substantially all of NEE’s operating revenues, which primarily include revenues from contracts with customers, as well as derivative and lease transactions at NEER. For the vast majority of contracts with customers, NEE believes that the obligation to deliver energy, capacity or transmission is satisfied over time as the customer simultaneously receives and consumes benefits as NEE performs. NEE’s revenue from contracts with customers was approximately $4.9 billion ( $3.4 billion at FPL) and $4.9 billion ( $3.5 billion at FPL) for the three months ended September 30, 2020 and 2019 , respectively, and $12.9 billion ( $8.8 billion at FPL) and $13.2 billion ( $9.2 billion at FPL) for the nine months ended September 30, 2020 and 2019 , respectively. NEE's and FPL's receivables are primarily associated with revenues earned from contracts with customers, as well as derivative and lease transactions at NEER, and consist of both billed and unbilled amounts, which are recorded in customer receivables and other receivables on NEE's and FPL's condensed consolidated balance sheets. Receivables represent unconditional rights to consideration and reflect the differences in timing of revenue recognition and cash collections. For substantially all of NEE's and FPL's receivables, regardless of the type of revenue transaction from which the receivable originated, customer and counterparty credit risk is managed in the same manner and the terms and conditions of payment are similar. FPL - FPL’s revenues are derived primarily from tariff-based sales that result from providing electricity to retail customers in Florida with no defined contractual term. Electricity sales to retail customers account for approximately 90% of FPL’s operating revenues, the majority of which are to residential customers. FPL’s retail customers receive a bill monthly based on the amount of monthly kWh usage with payment due monthly. For these types of sales, FPL recognizes revenue as electricity is delivered and billed to customers, as well as an estimate for electricity delivered and not yet billed. The billed and unbilled amounts represent the value of electricity delivered to the customer. At September 30, 2020 and December 31, 2019 , FPL's unbilled revenues amounted to approximately $468 million and $389 million , respectively, and are included in customer receivables on NEE's and FPL's condensed consolidated balance sheets. NEER - NEER’s revenue from contracts with customers is derived primarily from the sale of energy commodities, electric capacity and electric transmission. For these types of sales, NEER recognizes revenue as energy commodities are delivered and as electric capacity and electric transmission are made available, consistent with the amounts billed to customers based on rates stipulated in the respective contracts as well as an accrual for amounts earned but not yet billed. The amounts billed and accrued represent the value of energy or transmission delivered and/or the capacity of energy or transmission available to the customer. Revenues yet to be earned under these contracts, which have maturity dates ranging from 2020 to 2053 , will vary based on the volume of energy or transmission delivered and/or available. NEER’s customers typically receive bills monthly with payment due within 30 days. Certain contracts with customers contain a fixed price which primarily relate to electric capacity sales associated with ISO annual auctions through 2024 and certain power purchase agreements with maturity dates through 2034. At September 30, 2020 , NEER expects to record approximately $870 million of revenues related to the fixed price components of such contracts over the remaining terms of the related contracts as the capacity is provided.

NEP NEP

NEP NEP	9 Months Ended
	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
NEP	NEP NextEra Energy Resources provides management, administrative and transportation and fuel management services to NEP and its subsidiaries under various agreements (service agreements). NextEra Energy Resources is also party to a cash sweep and credit support (CSCS) agreement with a subsidiary of NEP. At September 30, 2020 and December 31, 2019 , the cash sweep amounts (due to NEP and its subsidiaries) held in accounts belonging to NextEra Energy Resources or its subsidiaries were approximately $82 million and $12 million , respectively, and are included in accounts payable. Fee income related to the CSCS agreement and the service agreements totaled approximately $31 million and $27 million for the three months ended September 30, 2020 and 2019 , respectively, and $88 million and $75 million for the nine months ended September 30, 2020 and 2019 , respectively, and is included in operating revenues in NEE's condensed consolidated statements of income. Amounts due from NEP of approximately $61 million and $53 million are included in other receivables and $33 million and $33 million are included in noncurrent other assets at September 30, 2020 and December 31, 2019 , respectively. Under the CSCS agreement, NEECH or NextEra Energy Resources guaranteed or provided indemnifications, letters of credit or surety bonds totaling approximately $647 million at September 30, 2020 primarily related to obligations on behalf of NEP's subsidiaries with maturity dates ranging from 2020 to 2059 and included certain project performance obligations, obligations under financing and interconnection agreements and obligations related to the sale of differential membership interests. Payment guarantees and related contracts with respect to unconsolidated entities for which NEE or one of its subsidiaries are the guarantor are recorded on NEE’s condensed consolidated balance sheets at fair value. At September 30, 2020 , approximately $31 million related to the fair value of the credit support provided under the CSCS agreement is recorded as noncurrent other liabilities on NEE's condensed consolidated balance sheet. In June 2019, subsidiaries of NextEra Energy Resources completed the sale of ownership interests in certain wind and solar generation facilities to a NEP subsidiary. See Note 11 - Disposal of Businesses.

Employee Retirement Benefits

Employee Retirement Benefits	9 Months Ended
	Sep. 30, 2020
Retirement Benefits [Abstract]
Employee Retirement Benefits	Employee Retirement Benefits NEE sponsors a qualified noncontributory defined benefit pension plan for substantially all employees of NEE and its subsidiaries and sponsors a contributory postretirement plan for other benefits for retirees of NEE and its subsidiaries meeting certain eligibility requirements. The components of net periodic income for the plans are as follows: Pension Benefits Postretirement Benefits Pension Benefits Postretirement Benefits Three Months Ended September 30, Three Months Ended September 30, Nine Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 2020 2019 2020 2019 (millions) Service cost $ 22 $ 20 $ — $ — $ 64 $ 60 $ 1 $ 1 Interest cost 23 28 3 3 69 86 6 7 Expected return on plan assets (80 ) (78 ) — — (241 ) (235 ) — — Amortization of prior service benefit (1 ) — (4 ) (4 ) (1 ) (1 ) (12 ) (12 ) Amortization of actuarial loss 4 — — — 13 — 2 — Special termination benefits (a) 4 1 — — 13 17 — — Net periodic income at NEE $ (28 ) $ (29 ) $ (1 ) $ (1 ) $ (83 ) $ (73 ) $ (3 ) $ (4 ) Net periodic income allocated to FPL $ (19 ) $ (18 ) $ (1 ) $ (1 ) $ (58 ) $ (53 ) $ (2 ) $ (3 ) _________________________ (a) Reflects enhanced early retirement benefits.

Derivative Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative Instruments NEE and FPL use derivative instruments (primarily swaps, options, futures and forwards) to manage the physical and financial risks inherent in the purchase and sale of fuel and electricity, as well as interest rate and foreign currency exchange rate risk associated primarily with outstanding and expected future debt issuances and borrowings, and to optimize the value of NEER's power generation and gas infrastructure assets. NEE and FPL do not utilize hedge accounting for their cash flow and fair value hedges. With respect to commodities related to NEE's competitive energy business, NEER employs risk management procedures to conduct its activities related to optimizing the value of its power generation and gas infrastructure assets, providing full energy and capacity requirements services primarily to distribution utilities, and engaging in power and gas marketing and trading activities to take advantage of expected future favorable price movements and changes in the expected volatility of prices in the energy markets. These risk management activities involve the use of derivative instruments executed within prescribed limits to manage the risk associated with fluctuating commodity prices. Transactions in derivative instruments are executed on recognized exchanges or via the OTC markets, depending on the most favorable credit terms and market execution factors. For NEER's power generation and gas infrastructure assets, derivative instruments are used to hedge all or a portion of the expected output of these assets. These hedges are designed to reduce the effect of adverse changes in the wholesale forward commodity markets associated with NEER's power generation and gas infrastructure assets. With regard to full energy and capacity requirements services, NEER is required to vary the quantity of energy and related services based on the load demands of the customers served. For this type of transaction, derivative instruments are used to hedge the anticipated electricity quantities required to serve these customers and reduce the effect of unfavorable changes in the forward energy markets. Additionally, NEER takes positions in energy markets based on differences between actual forward market levels and management's view of fundamental market conditions, including supply/demand imbalances, changes in traditional flows of energy, changes in short- and long-term weather patterns and anticipated regulatory and legislative outcomes. NEER uses derivative instruments to realize value from these market dislocations, subject to strict risk management limits around market, operational and credit exposure. Derivative instruments, when required to be marked to market, are recorded on NEE's and FPL's condensed consolidated balance sheets as either an asset or liability measured at fair value. At FPL, substantially all changes in the derivatives' fair value are deferred as a regulatory asset or liability until the contracts are settled, and, upon settlement, any gains or losses are passed through the fuel clause. For NEE's non-rate regulated operations, predominantly NEER, essentially all changes in the derivatives' fair value for power purchases and sales, fuel sales and trading activities are recognized on a net basis in operating revenues and the equity method investees' related activity is recognized in equity in earnings of equity method investees in NEE's condensed consolidated statements of income. Settlement gains and losses are included within the line items in the condensed consolidated statements of income to which they relate. Transactions for which physical delivery is deemed not to have occurred are presented on a net basis in the condensed consolidated statements of income. For commodity derivatives, NEE believes that, where offsetting positions exist at the same location for the same time, the transactions are considered to have been netted and therefore physical delivery has been deemed not to have occurred for financial reporting purposes. Settlements related to derivative instruments are primarily recognized in net cash provided by operating activities in NEE's and FPL's condensed consolidated statements of cash flows. For interest rate and foreign currency derivative instruments, all changes in the derivatives' fair value, as well as the transaction gain or loss on foreign denominated debt, are recognized in interest expense and the equity method investees' related activity is recognized in equity in earnings of equity method investees in NEE's condensed consolidated statements of income. In addition, for the nine months ended September 30, 2020 and 2019 , NEE reclassified from AOCI approximately $23 million ( $3 million after tax) to gains on disposal of businesses/assets - net (see Note 11 - Disposal of Businesses) and $8 million ( $6 million after tax) to interest expense, respectively, because it became probable that related future transactions being hedged would not occur. At September 30, 2020 , NEE's AOCI included amounts related to discontinued interest rate cash flow hedges with expiration dates through March 2035 and foreign currency cash flow hedges with expiration dates through September 2030 . Approximately $8 million of net losses included in AOCI at September 30, 2020 are expected to be reclassified into earnings within the next 12 months as the principal and/or interest payments are made. Such amounts assume no change in scheduled principal payments. Fair Value of Derivative Instruments - The tables below present NEE's and FPL's gross derivative positions at September 30, 2020 and December 31, 2019 , as required by disclosure rules. However, the majority of the underlying contracts are subject to master netting agreements and generally would not be contractually settled on a gross basis. Therefore, the tables below also present the derivative positions on a net basis, which reflect the offsetting of positions of certain transactions within the portfolio, the contractual ability to settle contracts under master netting arrangements and the netting of margin cash collateral (see Note 5 - Recurring Fair Value Measurements for netting information), as well as the location of the net derivative position on the condensed consolidated balance sheets. September 30, 2020 Gross Basis Net Basis Assets Liabilities Assets Liabilities (millions) NEE: Commodity contracts $ 4,435 $ 2,795 $ 2,039 $ 543 Interest rate contracts 33 1,324 5 1,296 Foreign currency contracts 15 47 19 51 Total fair values $ 4,483 $ 4,166 $ 2,063 $ 1,890 FPL: Commodity contracts $ 4 $ 13 $ 2 $ 11 Net fair value by NEE balance sheet line item: Current derivative assets $ 441 Noncurrent derivative assets (a) 1,622 Current derivative liabilities (b) $ 310 Noncurrent derivative liabilities 1,580 Total derivatives $ 2,063 $ 1,890 Net fair value by FPL balance sheet line item: Current other assets $ 2 Current other liabilities $ 10 Noncurrent other liabilities 1 Total derivatives $ 2 $ 11 ——————————————— (a) Reflects the netting of approximately $158 million in margin cash collateral received from counterparties. (b) Reflects the netting of approximately $14 million in margin cash collateral paid to counterparties. December 31, 2019 Gross Basis Net Basis Assets Liabilities Assets Liabilities (millions) NEE: Commodity contracts $ 5,050 $ 3,201 $ 2,350 $ 576 Interest rate contracts 26 742 9 725 Foreign currency contracts 26 38 27 39 Total fair values $ 5,102 $ 3,981 $ 2,386 $ 1,340 FPL: Commodity contracts $ 4 $ 14 $ 3 $ 13 Net fair value by NEE balance sheet line item: Current derivative assets (a) $ 762 Noncurrent derivative assets (b) 1,624 Current derivative liabilities (c) $ 344 Current other liabilities (d) 133 Noncurrent derivative liabilities 863 Total derivatives $ 2,386 $ 1,340 Net fair value by FPL balance sheet line item: Current other assets $ 3 Current other liabilities $ 12 Noncurrent other liabilities 1 Total derivatives $ 3 $ 13 ——————————————— (a) Reflects the netting of approximately $2 million in margin cash collateral received from counterparties. (b) Reflects the netting of approximately $139 million in margin cash collateral received from counterparties. (c) Reflects the netting of approximately $66 million in margin cash collateral paid to counterparties. (d) See Note 11 - Disposal of Businesses. At September 30, 2020 and December 31, 2019 , NEE had approximately $10 million and $10 million (none at FPL), respectively, in margin cash collateral received from counterparties that was not offset against derivative assets in the above presentation. These amounts are included in current other liabilities on NEE's condensed consolidated balance sheets. Additionally, at September 30, 2020 and December 31, 2019 , NEE had approximately $559 million and $360 million (none at FPL), respectively, in margin cash collateral paid to counterparties that was not offset against derivative assets or liabilities in the above presentation. These amounts are included in current other assets on NEE's condensed consolidated balance sheets. Income Statement Impact of Derivative Instruments - Gains (losses) related to NEE's derivatives are recorded in NEE's condensed consolidated statements of income as follows: Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 (millions) Commodity contracts (a) - operating revenues $ (327 ) $ 366 $ 245 $ 641 Foreign currency contracts - interest expense 34 (13 ) (30 ) (21 ) Interest rate contracts - interest expense 131 (352 ) (710 ) (883 ) Losses reclassified from AOCI: Interest rate contracts (b) (3 ) (6 ) (30 ) (24 ) Foreign currency contracts - interest expense (1 ) (1 ) (3 ) (3 ) Total $ (166 ) $ (6 ) $ (528 ) $ (290 ) ——————————————— (a) For the three and nine months ended September 30, 2020 , FPL recorded losses of approximately $1 million and $3 million , respectively, related to commodity contracts as regulatory assets on its condensed consolidated balance sheets. For the three and nine months ended September 30, 2019 , FPL recorded gains of approximately $4 million and $8 million , respectively, related to commodity contracts as regulatory liabilities on its condensed consolidated balance sheets. (b) For the nine months ended September 30, 2020 , approximately $23 million was reclassified to gains on disposal of businesses/assets - net (see Note 11 - Disposal of Businesses); remaining balances were reclassified to interest expense on NEE's condensed consolidated statements of income. Notional Volumes of Derivative Instruments - The following table represents net notional volumes associated with derivative instruments that are required to be reported at fair value in NEE's and FPL's condensed consolidated financial statements. The table includes significant volumes of transactions that have minimal exposure to commodity price changes because they are variably priced agreements. These volumes are only an indication of the commodity exposure that is managed through the use of derivatives. They do not represent net physical asset positions or non-derivative positions and the related hedges, nor do they represent NEE’s and FPL’s net economic exposure, but only the net notional derivative positions that fully or partially hedge the related asset positions. NEE and FPL had derivative commodity contracts for the following net notional volumes: September 30, 2020 December 31, 2019 Commodity Type NEE FPL NEE FPL (millions) Power (76 ) MWh — MWh (81 ) MWh 1 MWh Natural gas (352 ) MMBtu 143 MMBtu (1,723 ) MMBtu 161 MMBtu Oil (14 ) barrels — (13 ) barrels — At September 30, 2020 and December 31, 2019 , NEE had interest rate contracts with a net notional amount of approximately $10.5 billion and $8.9 billion , respectively, and foreign currency contracts with a net notional amount of approximately $957 million and $1.0 billion , respectively. Credit - Risk - Related Contingent Features - Certain derivative instruments contain credit-risk-related contingent features including, among other things, the requirement to maintain an investment grade credit rating from specified credit rating agencies and certain financial ratios, as well as credit-related cross-default and material adverse change triggers. At September 30, 2020 and December 31, 2019 , the aggregate fair value of NEE's derivative instruments with credit-risk-related contingent features that were in a liability position was approximately $2.1 billion ( $12 million for FPL) and $1.7 billion ( $12 million for FPL), respectively. If the credit-risk-related contingent features underlying these derivative agreements were triggered, certain subsidiaries of NEE, including FPL, could be required to post collateral or settle contracts according to contractual terms which generally allow netting of contracts in offsetting positions. Certain derivative contracts contain multiple types of credit-related triggers. To the extent these contracts contain a credit ratings downgrade trigger, the maximum exposure is included in the following credit ratings collateral posting requirements. If FPL's and NEECH's credit ratings were downgraded to BBB/Baa2 (a three level downgrade for FPL and a one level downgrade for NEECH from the current lowest applicable rating), applicable NEE subsidiaries would be required to post collateral such that the total posted collateral would be approximately $95 million ( none at FPL ) at September 30, 2020 and $215 million ( none at FPL) at December 31, 2019 . If FPL's and NEECH's credit ratings were downgraded to below investment grade, applicable NEE subsidiaries would be required to post additional collateral such that the total posted collateral would be approximately $1.1 billion ( $70 million at FPL) at September 30, 2020 and $1.2 billion ( $35 million at FPL) at December 31, 2019 . Some derivative contracts do not contain credit ratings downgrade triggers, but do contain provisions that require certain financial measures be maintained and/or have credit-related cross-default triggers. In the event these provisions were triggered, applicable NEE subsidiaries could be required to post additional collateral of up to approximately $1.1 billion ( $95 million at FPL) at September 30, 2020 and $590 million ( $75 million at FPL) at December 31, 2019 . Collateral related to derivatives may be posted in the form of cash or credit support in the normal course of business. At September 30, 2020 and December 31, 2019 , applicable NEE subsidiaries have posted approximately $74 million ( none at FPL) and $2 million ( none at FPL), respectively, in cash, and at December 31, 2019, applicable NEE subsidiaries have posted approximately $88 million ( none at FPL) in the form of letters of credit, each of which could be applied toward the collateral requirements described above. FPL and NEECH have capacity under their credit facilities generally in excess of the collateral requirements described above that would be available to support, among other things, derivative activities. Under the terms of the credit facilities, maintenance of a specific credit rating is not a condition to drawing on these credit facilities, although there are other conditions to drawing on these credit facilities. Additionally, some contracts contain certain adequate assurance provisions whereby a counterparty may demand additional collateral based on subjective events and/or conditions. Due to the subjective nature of these provisions, NEE and FPL are unable to determine an exact value for these items and they are not included in any of the quantitative disclosures above.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The fair value of assets and liabilities are determined using either unadjusted quoted prices in active markets (Level 1) or pricing inputs that are observable (Level 2) whenever that information is available and using unobservable inputs (Level 3) to estimate fair value only when relevant observable inputs are not available. NEE and FPL use several different valuation techniques to measure the fair value of assets and liabilities, relying primarily on the market approach of using prices and other market information for identical and/or comparable assets and liabilities for those assets and liabilities that are measured at fair value on a recurring basis. NEE's and FPL's assessment of the significance of any particular input to the fair value measurement requires judgment and may affect placement within the fair value hierarchy levels. Non-performance risk, including the consideration of a credit valuation adjustment, is also considered in the determination of fair value for all assets and liabilities measured at fair value. Cash Equivalents and Restricted Cash Equivalents - NEE and FPL hold investments in money market funds. The fair value of these funds is estimated using a market approach based on current observable market prices. Special Use Funds and Other Investments - NEE and FPL hold primarily debt and equity securities directly, as well as indirectly through commingled funds. Substantially all directly held equity securities are valued at their quoted market prices. For directly held debt securities, multiple prices and price types are obtained from pricing vendors whenever possible, which enables cross-provider validations. A primary price source is identified based on asset type, class or issue of each security. Commingled funds, which are similar to mutual funds, are maintained by banks or investment companies and hold certain investments in accordance with a stated set of objectives. The fair value of commingled funds is primarily derived from the quoted prices in active markets of the underlying securities. Because the fund shares are offered to a limited group of investors, they are not considered to be traded in an active market. Derivative Instruments - NEE and FPL measure the fair value of commodity contracts using a combination of market and income approaches utilizing prices observed on commodities exchanges and in the OTC markets, or through the use of industry-standard valuation techniques, such as option modeling or discounted cash flows techniques, incorporating both observable and unobservable valuation inputs. The resulting measurements are the best estimate of fair value as represented by the transfer of the asset or liability through an orderly transaction in the marketplace at the measurement date. Most exchange-traded derivative assets and liabilities are valued directly using unadjusted quoted prices. For exchange-traded derivative assets and liabilities where the principal market is deemed to be inactive based on average daily volumes and open interest, the measurement is established using settlement prices from the exchanges, and therefore considered to be valued using other observable inputs. NEE, through its subsidiaries, including FPL, also enters into OTC commodity contract derivatives. The majority of these contracts are transacted at liquid trading points, and the prices for these contracts are verified using quoted prices in active markets from exchanges, brokers or pricing services for similar contracts. NEE, through NEER, also enters into full requirements contracts, which, in most cases, meet the definition of derivatives and are measured at fair value. These contracts typically have one or more inputs that are not observable and are significant to the valuation of the contract. In addition, certain exchange and non-exchange traded derivative options at NEE have one or more significant inputs that are not observable, and are valued using industry-standard option models. In all cases where NEE and FPL use significant unobservable inputs for the valuation of a commodity contract, consideration is given to the assumptions that market participants would use in valuing the asset or liability. The primary input to the valuation models for commodity contracts is the forward commodity curve for the respective instruments. Other inputs include, but are not limited to, assumptions about market liquidity, volatility, correlation and contract duration as more fully described below in Significant Unobservable Inputs Used in Recurring Fair Value Measurements. In instances where the reference markets are deemed to be inactive or do not have transactions for a similar contract, the derivative assets and liabilities may be valued using significant other observable inputs and potentially significant unobservable inputs. In such instances, the valuation for these contracts is established using techniques including extrapolation from or interpolation between actively traded contracts, or estimated basis adjustments from liquid trading points. NEE and FPL regularly evaluate and validate the inputs used to determine fair value by a number of methods, consisting of various market price verification procedures, including the use of pricing services and multiple broker quotes to support the market price of the various commodities. In all cases where there are assumptions and models used to generate inputs for valuing derivative assets and liabilities, the review and verification of the assumptions, models and changes to the models are undertaken by individuals that are independent of those responsible for estimating fair value. NEE uses interest rate contracts and foreign currency contracts to mitigate and adjust interest rate and foreign currency exchange exposure related primarily to certain outstanding and expected future debt issuances and borrowings when deemed appropriate based on market conditions or when required by financing agreements. NEE estimates the fair value of these derivatives using an income approach based on a discounted cash flows valuation technique utilizing the net amount of estimated future cash inflows and outflows related to the agreements. Recurring Fair Value Measurements - NEE's and FPL's financial assets and liabilities and other fair value measurements made on a recurring basis by fair value hierarchy level are as follows: September 30, 2020 Level 1 Level 2 Level 3 Netting (a) Total (millions) Assets: Cash equivalents and restricted cash equivalents: (b) NEE - equity securities $ 1,804 $ — $ — $ 1,804 FPL - equity securities $ 191 $ — $ — $ 191 Special use funds: (c) NEE: Equity securities $ 1,994 $ 2,187 (d) $ — $ 4,181 U.S. Government and municipal bonds $ 522 $ 157 $ — $ 679 Corporate debt securities $ 1 $ 850 $ — $ 851 Mortgage-backed securities $ — $ 440 $ — $ 440 Other debt securities $ — $ 112 $ — $ 112 FPL: Equity securities $ 680 $ 1,983 (d) $ — $ 2,663 U.S. Government and municipal bonds $ 405 $ 103 $ — $ 508 Corporate debt securities $ — $ 600 $ — $ 600 Mortgage-backed securities $ — $ 348 $ — $ 348 Other debt securities $ — $ 107 $ — $ 107 Other investments: (e) NEE: Equity securities $ 61 $ — $ — $ 61 Debt securities $ 93 $ 109 $ — $ 202 Derivatives: NEE: Commodity contracts $ 1,029 $ 1,796 $ 1,610 $ (2,396 ) $ 2,039 (f) Interest rate contracts $ — $ 33 $ — $ (28 ) $ 5 (f) Foreign currency contracts $ — $ 15 $ — $ 4 $ 19 (f) FPL - commodity contracts $ — $ 2 $ 2 $ (2 ) $ 2 (f) Liabilities: Derivatives: NEE: Commodity contracts $ 1,027 $ 1,328 $ 440 $ (2,252 ) $ 543 (f) Interest rate contracts $ — $ 1,304 $ 20 $ (28 ) $ 1,296 (f) Foreign currency contracts $ — $ 47 $ — $ 4 $ 51 (f) FPL - commodity contracts $ — $ 5 $ 8 $ (2 ) $ 11 (f) ——————————————— (a) Includes the effect of the contractual ability to settle contracts under master netting arrangements and the netting of margin cash collateral payments and receipts. NEE and FPL also have contract settlement receivable and payable balances that are subject to master netting arrangements but are not offset within the condensed consolidated balance sheets and are recorded in customer receivables - net and accounts payable, respectively. (b) Includes restricted cash equivalents of approximately $231 million ( $73 million for FPL) in current other assets and $82 million ( $41 million for FPL) in noncurrent other assets on the condensed consolidated balance sheets. (c) Excludes investments accounted for under the equity method and loans not measured at fair value on a recurring basis. See Fair Value of Financial Instruments Recorded at Other than Fair Value below. (d) Primarily invested in commingled funds whose underlying securities would be Level 1 if those securities were held directly by NEE or FPL. (e) Included in noncurrent other assets on NEE's condensed consolidated balance sheet. (f) See Note 4 - Fair Value of Derivative Instruments for a reconciliation of net derivatives to NEE's and FPL's condensed consolidated balance sheets. December 31, 2019 Level 1 Level 2 Level 3 Netting (a) Total (millions) Assets: Cash equivalents and restricted cash equivalents: (b) NEE - equity securities $ 363 $ — $ — $ 363 FPL - equity securities $ 156 $ — $ — $ 156 Special use funds: (c) NEE: Equity securities $ 1,875 $ 2,088 (d) $ — $ 3,963 U.S. Government and municipal bonds $ 567 $ 150 $ — $ 717 Corporate debt securities $ — $ 748 $ — $ 748 Mortgage-backed securities $ — $ 517 $ — $ 517 Other debt securities $ — $ 117 $ — $ 117 FPL: Equity securities $ 596 $ 1,895 (d) $ — $ 2,491 U.S. Government and municipal bonds $ 429 $ 106 $ — $ 535 Corporate debt securities $ — $ 533 $ — $ 533 Mortgage-backed securities $ — $ 395 $ — $ 395 Other debt securities $ — $ 111 $ — $ 111 Other investments: (e) NEE: Equity securities $ 34 $ 12 $ — $ 46 Debt securities $ 82 $ 69 $ — $ 151 Derivatives: NEE: Commodity contracts $ 1,229 $ 2,082 $ 1,739 $ (2,700 ) $ 2,350 (f) Interest rate contracts $ — $ 24 $ 2 $ (17 ) $ 9 (f) Foreign currency contracts $ — $ 26 $ — $ 1 $ 27 (f) FPL - commodity contracts $ — $ 3 $ 1 $ (1 ) $ 3 (f) Liabilities: Derivatives: NEE: Commodity contracts $ 1,365 $ 1,446 $ 390 $ (2,625 ) $ 576 (f) Interest rate contracts $ — $ 598 $ 144 $ (17 ) $ 725 (f) Foreign currency contracts $ — $ 38 $ — $ 1 $ 39 (f) FPL - commodity contracts $ — $ 5 $ 9 $ (1 ) $ 13 (f) ——————————————— (a) Includes the effect of the contractual ability to settle contracts under master netting arrangements and the netting of margin cash collateral payments and receipts. NEE and FPL also have contract settlement receivable and payable balances that are subject to master netting arrangements but are not offset within the condensed consolidated balance sheets and are recorded in customer receivables - net and accounts payable, respectively. (b) Includes restricted cash equivalents of approximately $60 million ( $54 million for FPL) in current other assets and $64 million ( $64 million for FPL) in noncurrent other assets on the condensed consolidated balance sheets. (c) Excludes investments accounted for under the equity method and loans not measured at fair value on a recurring basis. See Fair Value of Financial Instruments Recorded at Other than Fair Value below. (d) Primarily invested in commingled funds whose underlying securities would be Level 1 if those securities were held directly by NEE or FPL. (e) Included in noncurrent other assets on NEE's condensed consolidated balance sheet. (f) See Note 4 - Fair Value of Derivative Instruments for a reconciliation of net derivatives to NEE's and FPL's condensed consolidated balance sheets. Significant Unobservable Inputs Used in Recurring Fair Value Measurements - The valuation of certain commodity contracts requires the use of significant unobservable inputs. All forward price, implied volatility, implied correlation and interest rate inputs used in the valuation of such contracts are directly based on third-party market data, such as broker quotes and exchange settlements, when that data is available. If third-party market data is not available, then industry standard methodologies are used to develop inputs that maximize the use of relevant observable inputs and minimize the use of unobservable inputs. Observable inputs, including some forward prices, implied volatilities and interest rates used for determining fair value are updated daily to reflect the best available market information. Unobservable inputs which are related to observable inputs, such as illiquid portions of forward price or volatility curves, are updated daily as well, using industry standard techniques such as interpolation and extrapolation, combining observable forward inputs supplemented by historical market and other relevant data. Other unobservable inputs, such as implied correlations, block-to-hourly price shaping, customer migration rates from full requirements contracts and some implied volatility curves, are modeled using proprietary models based on historical data and industry standard techniques. The significant unobservable inputs used in the valuation of NEE's commodity contracts categorized as Level 3 of the fair value hierarchy at September 30, 2020 are as follows: Fair Value at Valuation Significant Weighted- Transaction Type September 30, 2020 Technique(s) Unobservable Inputs Range average (a) Assets Liabilities (millions) Forward contracts - power $ 754 $ 106 Discounted cash flow Forward price (per MWh) $2 — $157 $28 Forward contracts - gas 270 40 Discounted cash flow Forward price (per MMBtu) $— — $8 $3 Forward contracts - congestion 25 5 Discounted cash flow Forward price (per MWh) $(5) — $33 $— Options - power 35 17 Option models Implied correlations 40% — 85% 55% Implied volatilities 5% — 152% 48% Options - primarily gas 198 203 Option models Implied correlations 40% — 100% 57% Implied volatilities 16% — 270% 42% Full requirements and unit contingent contracts 301 56 Discounted cash flow Forward price (per MWh) $6 — $382 $48 Customer migration rate (b) —% — 122% 2% Forward contracts - other 27 13 Total $ 1,610 $ 440 ——————————————— (a) Unobservable inputs were weighted by volume. (b) Applies only to full requirements contracts. The sensitivity of NEE's fair value measurements to increases (decreases) in the significant unobservable inputs is as follows: Significant Unobservable Input Position Impact on Fair Value Measurement Forward price Purchase power/gas Increase (decrease) Sell power/gas Decrease (increase) Implied correlations Purchase option Decrease (increase) Sell option Increase (decrease) Implied volatilities Purchase option Increase (decrease) Sell option Decrease (increase) Customer migration rate Sell power (a) Decrease (increase) ——————————————— (a) Assumes the contract is in a gain position. The reconciliation of changes in the fair value of derivatives that are based on significant unobservable inputs is as follows: Three Months Ended September 30, 2020 2019 NEE FPL NEE FPL (millions) Fair value of net derivatives based on significant unobservable inputs at June 30 $ 1,305 $ (6 ) $ 1,231 $ (13 ) Realized and unrealized gains (losses): Included in earnings (a) (55 ) — (29 ) — Included in other comprehensive income (loss) (b) — — 6 — Included in regulatory assets and liabilities (1 ) (1 ) 2 2 Purchases 37 — 27 — Settlements (108 ) 1 (146 ) 1 Issuances (26 ) — (13 ) — Transfers out (c) (2 ) — (27 ) — Fair value of net derivatives based on significant unobservable inputs at September 30 $ 1,150 $ (6 ) $ 1,051 $ (10 ) Gains (losses) included in earnings attributable to the change in unrealized gains (losses) relating to derivatives held at the reporting date (d) $ (46 ) $ — $ 53 $ — ——————————————— (a) For the three months ended September 30, 2020 and 2019 , realized and unrealized losses of approximately $55 million and $23 million , respectively, are included in the condensed consolidated statements of income in operating revenues and the balance is included in interest expense. (b) Included in net unrealized gains (losses) on foreign currency translation in the condensed consolidated statements of comprehensive income. (c) Transfers from Level 3 to Level 2 were a result of increased observability of market data. (d) For the three months ended September 30, 2020 and 2019 , unrealized gains (losses) of approximately $(46) million and $61 million , respectively, are included in the condensed consolidated statements of income in operating revenues and the balance is included in interest expense. Nine Months Ended September 30, 2020 2019 NEE FPL NEE FPL (millions) Fair value of net derivatives based on significant unobservable inputs at December 31 of prior period $ 1,207 $ (8 ) $ 647 $ (36 ) Realized and unrealized gains (losses): Included in earnings (a) 294 — 663 — Included in other comprehensive income (loss) (b) 1 — 7 — Included in regulatory assets and liabilities (3 ) (3 ) 1 1 Purchases 157 — 94 — Sales (c) 114 — — — Settlements (490 ) 5 (265 ) 23 Issuances (98 ) — (64 ) — Transfers out (d) (32 ) — (32 ) 2 Fair value of net derivatives based on significant unobservable inputs at September 30 $ 1,150 $ (6 ) $ 1,051 $ (10 ) Gains (losses) included in earnings attributable to the change in unrealized gains (losses) relating to derivatives held at the reporting date (e) $ 79 $ — $ 476 $ — ——————————————— (a) For the nine months ended September 30, 2020 and 2019 , realized and unrealized gains of approximately $314 million and $680 million , respectively, are included in the condensed consolidated statements of income in operating revenues and the balance is included in interest expense. (b) Included in net unrealized gains (losses) on foreign currency translation in the condensed consolidated statements of comprehensive income. (c) See Note 11 - Disposal of Businesses. (d) Transfers from Level 3 to Level 2 were a result of increased observability of market data. (e) For the nine months ended September 30, 2020 and 2019 , unrealized gains of approximately $90 million and $493 million , respectively, are included in the condensed consolidated statements of income in operating revenues and the balance is included in interest expense. Fair Value of Financial Instruments Recorded at Other than Fair Value - The carrying amounts of commercial paper and other short-term debt approximate their fair values. The carrying amounts and estimated fair values of other financial instruments recorded at other than fair value are as follows: September 30, 2020 December 31, 2019 Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value (millions) NEE: Special use funds (a) $ 912 $ 912 $ 892 $ 891 Other investments (b) $ 25 $ 25 $ 30 $ 30 Long-term debt, including current portion $ 47,838 $ 52,527 (c) $ 39,667 (d) $ 42,928 (c) (d) FPL: Special use funds (a) $ 719 $ 718 $ 706 $ 705 Long-term debt, including current portion $ 15,809 $ 19,415 (c) $ 14,161 $ 16,448 (c) ——————————————— (a) Primarily represents investments accounted for under the equity method and loans not measured at fair value on a recurring basis (Level 2). (b) Included in noncurrent other assets on NEE's condensed consolidated balance sheets. (c) At September 30, 2020 and December 31, 2019 , substantially all is Level 2 for NEE and all is Level 2 for FPL. (d) Excludes debt totaling approximately $463 million classified as held for sale, which is included in current other liabilities on NEE's condensed consolidated balance sheet at December 31, 2019, for which the carrying amount approximated fair value. See Note 11 - Disposal of Businesses. Special Use Funds - The special use funds noted above and those carried at fair value (see Recurring Fair Value Measurements above) consist of NEE's nuclear decommissioning fund assets of approximately $7,099 million and $6,880 million at September 30, 2020 and December 31, 2019 , respectively, ( $4,869 million and $4,697 million , respectively, for FPL) and FPL's storm fund assets of $76 million and $74 million at September 30, 2020 and December 31, 2019 , respectively. The investments held in the special use funds consist of equity and available for sale debt securities which are primarily carried at estimated fair value. The amortized cost of debt securities is approximately $1,984 million and $2,030 million at September 30, 2020 and December 31, 2019 , respectively ( $1,492 million and $1,523 million , respectively, for FPL). Debt securities included in the nuclear decommissioning funds have a weighted-average maturity at September 30, 2020 of approximately nine years at both NEE and FPL. FPL's storm fund primarily consists of debt securities with a weighted-average maturity at September 30, 2020 of approximately one year . The cost of securities sold is determined using the specific identification method. Effective January 1, 2020, NEE and FPL adopted an accounting standards update that provides a modified version of the other than temporary impairment model for debt securities. The new available for sale debt security impairment model no longer allows consideration of the length of time during which the fair value has been less than its amortized cost basis when determining whether a credit loss exists. Credit losses are required to be presented as an allowance rather than as a write-down on securities not intended to be sold or required to be sold. NEE and FPL adopted this model prospectively. See Note 11 - Measurement of Credit Losses on Financial Instruments. For FPL's special use funds, changes in fair value of debt and equity securities, including any estimated credit losses of debt securities, result in a corresponding adjustment to the related regulatory asset or liability accounts, consistent with regulatory treatment. For NEE's non-rate regulated operations, changes in fair value of debt securities result in a corresponding adjustment to OCI, except for estimated credit losses and unrealized losses on debt securities intended or required to be sold prior to recovery of the amortized cost basis, which are recognized in other - net in NEE's condensed consolidated statements of income. Changes in fair value of equity securities are recorded in change in unrealized gains (losses) on equity securities held in NEER's nuclear decommissioning funds - net in NEE’s condensed consolidated statements of income. Unrealized gains (losses) recognized on equity securities held at September 30, 2020 and 2019 are as follows: NEE FPL Three Months Ended September 30, Nine Months Ended September 30, Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 2020 2019 2020 2019 (millions) Unrealized gains (losses) $ 223 $ 21 $ 65 $ 500 $ 129 $ 18 $ 50 $ 327 Realized gains and losses and proceeds from the sale or maturity of available for sale debt securities are as follows: NEE FPL Three Months Ended September 30, Nine Months Ended September 30, Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 2020 2019 2020 2019 (millions) Realized gains $ 30 $ 21 $ 86 $ 47 $ 21 $ 15 $ 66 $ 30 Realized losses $ 17 $ 14 $ 50 $ 34 $ 10 $ 11 $ 38 $ 20 Proceeds from sale or maturity of securities $ 555 $ 612 $ 2,046 $ 2,087 $ 475 $ 489 $ 1,747 $ 1,717 The unrealized gains and unrealized losses on available for sale debt securities and the fair value of available for sale debt securities in an unrealized loss position are as follows: NEE FPL September 30, 2020 December 31, 2019 September 30, 2020 December 31, 2019 (millions) Unrealized gains $ 120 $ 75 $ 92 $ 58 Unrealized losses (a) $ 23 $ 7 $ 21 $ 7 Fair value $ 314 $ 314 $ 239 $ 240 ——————————————— (a) Unrealized losses on available for sale debt securities in an unrealized loss position for greater than twelve months at September 30, 2020 and December 31, 2019 were not material to NEE or FPL. Regulations issued by the FERC and the NRC provide general risk management guidelines to protect nuclear decommissioning funds and to allow such funds to earn a reasonable return. The FERC regulations prohibit, among other investments, investments in any securities of NEE or its subsidiaries, affiliates or associates, excluding investments tied to market indices or mutual funds. Similar restrictions applicable to the decommissioning funds for NEER's nuclear plants are included in the NRC operating licenses for those facilities or in NRC regulations applicable to NRC licensees not in cost-of-service environments. With respect to the decommissioning fund for Seabrook, decommissioning fund contributions and withdrawals are also regulated by the New Hampshire Nuclear Decommissioning Financing Committee pursuant to New Hampshire law. The nuclear decommissioning reserve funds are managed by investment managers who must comply with the guidelines of NEE and FPL and the rules of the applicable regulatory authorities. The funds' assets are invested giving consideration to taxes, liquidity, risk, diversification and other prudent investment objectives.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes A reconciliation between the effective income tax rates and the applicable statutory rate is as follows: NEE FPL NEE FPL Three Months Ended September 30, Three Months Ended September 30, Nine Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 2020 2019 2020 2019 Statutory federal income tax rate 21.0 % 21.0 % 21.0 % 21.0 % 21.0 % 21.0 % 21.0 % 21.0 % Increases (reductions) resulting from: State income taxes - net of federal income tax benefit (a) 1.9 4.3 3.7 3.9 1.3 3.4 4.0 3.3 Taxes attributable to noncontrolling interests 1.8 2.0 — — 2.9 1.9 — — PTCs and ITCs - NEER (7.4 ) (11.5 ) — — (8.7 ) (7.9 ) — — Amortization of deferred regulatory credit (b) (4.4 ) (5.6 ) (5.6 ) (5.2 ) (5.4 ) (7.0 ) (5.2 ) (8.0 ) Foreign operations (c) — — — — (2.2 ) — — — Other - net (2.6 ) (3.4 ) (0.9 ) (1.6 ) (5.9 ) (2.3 ) (1.3 ) (0.7 ) Effective income tax rate 10.3 % 6.8 % 18.2 % 18.1 % 3.0 % 9.1 % 18.5 % 15.6 % ——————————————— (a) The three and nine months ended September 30, 2019 reflect a valuation allowance of approximately $48 million related to deferred state tax credits. (b) The nine months ended September 30, 2019 reflects a second quarter 2019 adjustment of approximately $83 million recorded by FPL to reduce income tax expense for the cumulative amortization of excess deferred income taxes from January 1, 2018 as a result of the FPSC's order in connection with its review of impacts associated with tax reform. One of the provisions of the order requires FPL to amortize approximately $870 million of its excess deferred income taxes over a period not to exceed ten years. (c) The gain on sale of the Spain solar projects was not taxable for federal and state income tax purposes (see Note 11 - Disposal of Businesses). NEE recognizes PTCs as wind energy is generated and sold based on a per kWh rate prescribed in applicable federal and state statutes, which may differ significantly from amounts computed, on a quarterly basis, using an overall effective income tax rate anticipated for the full year. NEE uses this method of recognizing PTCs for specific reasons, including that PTCs are an integral part of the financial viability of most wind projects and a fundamental component of such wind projects' results of operations. PTCs, as well as ITCs, can significantly affect NEE's effective income tax rate depending on the amount of pretax income. The amount of PTCs recognized can be significantly affected by wind generation and by the roll off of PTCs after ten years of production.

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2020
Business Combinations [Abstract]
Acquisitions	Acquisitions Gulf Power - On January 1, 2019, NEE acquired the outstanding common shares of Gulf Power, a rate-regulated electric utility under the jurisdiction of the FPSC. Gulf Power serves approximately 470,000 customers in eight counties throughout northwest Florida, has approximately 9,500 miles of transmission and distribution lines and owns approximately 2,300 MW of net generating capacity. The purchase price included approximately $4.44 billion in cash consideration and the assumption of approximately $1.3 billion of Gulf Power debt. The cash purchase price was funded through $4.5 billion of borrowings by NEECH in December 2018 under certain short-term bi-lateral term loan agreements; the proceeds of which borrowings were restricted and included in noncurrent other assets on NEE's condensed consolidated balance sheet at December 31, 2018. Such borrowings were repaid in April 2019. Under the acquisition method, the purchase price was allocated to the assets acquired and liabilities assumed on January 1, 2019 based on their fair value. The approval by the FPSC of Gulf Power's rates, which is intended to allow Gulf Power to collect from retail customers total revenues equal to Gulf Power's costs of providing service, including a reasonable rate of return on invested capital, is considered a fundamental input in measuring the fair value of Gulf Power's assets and liabilities and, as such, NEE concluded that the carrying values of all assets and liabilities recoverable through rates are representative of their fair values. As a result, NEE acquired assets of approximately $5.2 billion , primarily relating to property, plant and equipment of $4.0 billion and regulatory assets of $494 million , and assumed liabilities of approximately $3.4 billion , including $1.3 billion of long-term debt, $635 million of regulatory liabilities and $562 million of deferred income taxes. The excess of the purchase price over the fair value of assets acquired and liabilities assumed resulted in approximately $2.7 billion of goodwill which has been recognized on NEE's condensed consolidated balance sheets. Goodwill associated with the Gulf Power acquisition is reflected within Corporate and Other and, for impairment testing, is included in the Gulf Power reporting unit. The goodwill arising from the transaction represents expected benefits from continued expansion of NEE's regulated businesses and the indefinite life of Gulf Power's service territory franchise. Proposed Merger of FPL and Gulf Power - On October 15, 2020, the FERC approved an application filed by NEE, together with FPL and Gulf Power, to merge Gulf Power with and into FPL, with FPL as the surviving entity effective January 1, 2021. Gulf Power will continue as a separate operating division during 2021, serving its existing customers under separate retail rates. Trans Bay Cable, LLC - On July 16, 2019, a wholly owned subsidiary of NEET acquired the membership interests of Trans Bay Cable, LLC (Trans Bay), which owns and operates a 53 -mile, high-voltage direct current underwater transmission cable system in California extending from Pittsburg to San Francisco, with utility rates set by the FERC and revenues paid by the California Independent System Operator. The purchase price included approximately $670 million in cash consideration and the assumption of debt of approximately $422 million . Under the acquisition method, the purchase price was allocated to the assets acquired and liabilities assumed based on their fair value. The approval by the FERC of Trans Bay’s rates, which is intended to allow Trans Bay to collect total revenues equal to Trans Bay's costs for the development, financing, construction, operation and maintenance of Trans Bay, including a reasonable rate of return on invested capital, is considered a fundamental input in measuring the fair value of Trans Bay's assets and liabilities and, as such, NEE concluded that the carrying values of all assets and liabilities recoverable through rates are representative of their fair values. As a result, NEE acquired assets of approximately $703 million , primarily relating to property, plant and equipment, and assumed liabilities of approximately $643 million , primarily relating to long-term debt. The excess of the purchase price over the fair value of assets acquired and liabilities assumed resulted in approximately $610 million of goodwill which has been recognized on NEE's condensed consolidated balance sheets, of which approximately $572 million is expected to be deductible for tax purposes. Goodwill associated with the Trans Bay acquisition is reflected within NEER and, for impairment testing, is included in the rate-regulated transmission reporting unit. The goodwill arising from the transaction represents expected benefits from continued expansion of NEE's regulated businesses. GridLiance - On September 29, 2020, a wholly owned subsidiary of NEET entered into agreements to acquire GridLiance Holdco, LP and GridLiance GP, LLC (GridLiance) for approximately $660 million , including the assumption of approximately $160 million of debt, excluding post-closing adjustments. The agreements are subject to earn-out provisions for additional payments upon completion of certain development projects. GridLiance owns and operates three FERC-regulated transmission utilities with approximately 700 miles of high-voltage transmission lines across six states, five in the Midwest and Nevada. The acquisition is expected to close in 2021, and is subject to, among other things, approval of the FERC and utility commissions of certain states in which GridLiance operates. NEECH guarantees the payment obligations under the acquisition agreements.

Variable Interest Entities (VIE

Variable Interest Entities (VIEs)	9 Months Ended
	Sep. 30, 2020
Variable Interest Entities [Abstract]
Variable Interest Entities (VIEs)	Variable Interest Entities (VIEs) NEER - At September 30, 2020 , NEE consolidates 34 VIEs within the NEER segment. Subsidiaries within the NEER segment are considered the primary beneficiary of these VIEs since they control the most significant activities of these VIEs, including operations and maintenance, and they have the obligation to absorb expected losses of these VIEs. NextEra Energy Resources consolidates two VIEs, which own and operate natural gas/oil electric generation facilities with the capability of producing 1,450 MW. These entities sell their electric output to third parties under power sales contracts with expiration dates in 2021 and 2031 . The power sales contracts provide the offtaker the ability to dispatch the facilities and require the offtaker to absorb the cost of fuel. The assets and liabilities of these VIEs were approximately $198 million and $24 million , respectively, at September 30, 2020 and $216 million and $25 million , respectively, at December 31, 2019 . At September 30, 2020 and December 31, 2019 , the assets of these VIEs consisted primarily of property, plant and equipment. Three indirect subsidiaries of NextEra Energy Resources have an approximately 50 % ownership interest in five entities which own and operate solar photovoltaic (PV) facilities with the capability of producing a total of approximately 409 MW. Each of the three subsidiaries is considered a VIE since the non-managing members have no substantive rights over the managing members, and is consolidated by NextEra Energy Resources. These five entities sell their electric output to third parties under power sales contracts with expiration dates ranging from 2035 through 2042 . The five entities have third-party debt which is secured by liens against the assets of the entities. The debt holders have no recourse to the general credit of NextEra Energy Resources for the repayment of debt. The assets and liabilities of these VIEs were approximately $784 million and $624 million , respectively, at September 30, 2020 and $776 million and $598 million , respectively, at December 31, 2019 . At September 30, 2020 and December 31, 2019 , the assets and liabilities of these VIEs consisted primarily of property, plant and equipment and long-term debt. NEE consolidates a NEET VIE that is constructing an approximately 280 -mile electricity transmission line. A NEET subsidiary is the primary beneficiary and controls the most significant activities during the construction period, including controlling the construction budget. NEET is entitled to receive 50% of the profits and losses of the entity. The assets and liabilities of the VIE totaled approximately $345 million and $69 million , respectively, at September 30, 2020 , and $173 million and $29 million , respectively, at December 31, 2019 . At September 30, 2020 and December 31, 2019 , the assets and liabilities of this VIE consisted primarily of property, plant and equipment and accounts payable. The other 28 NextEra Energy Resources VIEs that are consolidated relate to certain subsidiaries which have sold differential membership interests in entities which own and operate wind electric generation and solar PV facilities with the capability of producing a total of approximately 7,482 MW and 813 MW, respectively. These entities sell their electric output either under power sales contracts to third parties with expiration dates ranging from 2025 through 2053 or in the spot market. These entities are considered VIEs because the holders of differential membership interests do not have substantive rights over the significant activities of these entities. NextEra Energy Resources has financing obligations, including third-party debt which is secured by liens against the generation facilities and the other assets of these entities or by pledges of NextEra Energy Resources' ownership interest in these entities. The debt holders have no recourse to the general credit of NEER for the repayment of debt. The assets and liabilities of these VIEs totaled approximately $11.8 billion and $0.7 billion , respectively, at September 30, 2020 . There were 26 of these consolidated VIEs at December 31, 2019 , and the assets and liabilities of those VIEs at such date totaled approximately $11.3 billion and $0.8 billion , respectively. At September 30, 2020 and December 31, 2019 , the assets and liabilities of these VIEs consisted primarily of property, plant and equipment and accounts payable. Other - At September 30, 2020 and December 31, 2019 , several NEE subsidiaries had investments totaling approximately $3,345 million ( $2,822 million at FPL) and $3,247 million ( $2,717 million at FPL), respectively, which are included in special use funds and noncurrent other assets on NEE's condensed consolidated balance sheets and in special use funds on FPL's condensed consolidated balance sheets. These investments represented primarily commingled funds and mortgage-backed securities. NEE subsidiaries, including FPL, are not the primary beneficiaries and therefore do not consolidate any of these entities because they do not control any of the ongoing activities of these entities, were not involved in the initial design of these entities and do not have a controlling financial interest in these entities. Certain subsidiaries of NEE have noncontrolling interests in entities accounted for under the equity method, including NEE's noncontrolling interest in NEP OpCo. These entities are limited partnerships or similar entity structures in which the limited partners or non-managing members do not have substantive rights over the significant activities of these entities, and therefore are considered VIEs. NEE is not the primary beneficiary because it does not have a controlling financial interest in these entities, and therefore does not consolidate any of these entities. NEE’s investment in these entities totaled approximately $3,872 million and $4,254 million at September 30, 2020 and December 31, 2019 , respectively. At September 30, 2020 , subsidiaries of NEE had commitments to invest additional amounts in five of the entities. Such commitments are included in the NEER amounts in the table in Note 12 - Contracts.

Equity

Equity	9 Months Ended
	Sep. 30, 2020
Equity [Abstract]
Equity	Equity Earnings Per Share - The reconciliation of NEE's basic and diluted earnings per share attributable to NEE is as follows: Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 (millions, except per share amounts) Numerator: Net income attributable to NEE - basic $ 1,229 $ 879 $ 2,924 $ 2,794 Adjustment for the impact of dilutive securities at NEP (a) (1 ) — — — Net income attributable to NEE - assuming dilution $ 1,228 $ 879 $ 2,924 $ 2,794 Denominator: Weighted-average number of common shares outstanding - basic 489.9 481.9 489.6 479.7 Equity units, stock options, performance share awards and restricted stock (b) 2.3 4.1 2.3 3.8 Weighted-average number of common shares outstanding - assuming dilution 492.2 486.0 491.9 483.5 Earnings per share attributable to NEE: Basic $ 2.51 $ 1.82 $ 5.97 $ 5.82 Assuming dilution $ 2.50 $ 1.81 $ 5.94 $ 5.78 ——————————————— (a) The three months ended September 30, 2020 adjustment is related to the NEP Series A convertible preferred units. During the three months ended September 30, 2019 , approximately $183 million of NEP's Series A convertible preferred units were converted into NEP common units. During the three months ended September 30, 2020 , substantially all of NEP's convertible notes and approximately $71 million of its Series A convertible preferred units were converted into NEP common units. Additionally, in October 2020, approximately $46 million of NEP's Series A convertible preferred units were converted into NEP common units. (b) Calculated using the treasury stock method. Performance share awards are included in diluted weighted-average number of common shares outstanding based upon what would be issued if the end of the reporting period was the end of the term of the award. Common shares issuable pursuant to equity units, stock options and/or performance share awards, as well as restricted stock which were not included in the denominator above due to their antidilutive effect were approximately 11.5 million and 2.2 million for the three months ended September 30, 2020 and 2019 , respectively, and 9.0 million and 1.0 million for the nine months ended September 30, 2020 and 2019 , respectively. On September 14, 2020, NEE's board of directors approved a four -for-one split of NEE common stock effective October 26, 2020 (2020 stock split). NEE's authorized common stock will increase from 800 million to 3.2 billion shares. Trading will begin on a stock split-adjusted basis on October 27, 2020. The pro forma earnings per share attributable to NEE, assuming dilution, for the three and nine months ended September 30, 2020 and 2019 , adjusted for the 2020 stock split, are $0.62 , $0.45 , $1.49 and $1.44 , respectively. Share-based data included in this Form 10-Q, other than the pro forma amounts in the preceding sentence, have not been adjusted to reflect the 2020 stock split. Accumulated Other Comprehensive Income (Loss) - The components of AOCI, net of tax, are as follows: Accumulated Other Comprehensive Income (Loss) Net Unrealized Gains (Losses) on Cash Flow Hedges Net Unrealized Gains (Losses) on Available for Sale Securities Defined Benefit Pension and Other Benefits Plans Net Unrealized Gains (Losses) on Foreign Currency Translation Other Comprehensive Income (Loss) Related to Equity Method Investees Total (millions) Nine Months Ended September 30, 2020 Balances, December 31, 2019 $ (27 ) $ 11 $ (114 ) $ (42 ) $ 3 $ (169 ) Other comprehensive loss before reclassifications — (8 ) — (35 ) — (43 ) Amounts reclassified from AOCI 2 (a) (1 ) (b) 3 (c) — — 4 Net other comprehensive income (loss) 2 (9 ) 3 (35 ) — (39 ) Impact of disposal of a business 23 (d) — — (13 ) (d) — 10 Balances, March 31, 2020 (2 ) 2 (111 ) (90 ) 3 (198 ) Other comprehensive income before reclassifications — 14 — 17 — 31 Amounts reclassified from AOCI 3 (a) — (2 ) (c) — — 1 Net other comprehensive income (loss) 3 14 (2 ) 17 — 32 Balances, June 30, 2020 1 16 (113 ) (73 ) 3 (166 ) Other comprehensive income before reclassifications — 3 — 8 — 11 Amounts reclassified from AOCI 2 (a) (1 ) (b) 1 (c) — — 2 Net other comprehensive income 2 2 1 8 — 13 Balances, September 30, 2020 $ 3 $ 18 $ (112 ) $ (65 ) $ 3 $ (153 ) Attributable to noncontrolling interests $ — $ — $ — $ (1 ) $ — $ (1 ) Attributable to NEE $ 3 $ 18 $ (112 ) $ (64 ) $ 3 $ (152 ) ——————————————— (a) Reclassified to interest expense in NEE's condensed consolidated statements of income. See Note 4 - Income Statement Impact of Derivative Instruments. (b) Reclassified to gains on disposal of investments and other property - net in NEE's condensed consolidated statements of income. (c) Reclassified to other net periodic benefit income in NEE's condensed consolidated statements of income. (d) Reclassified to gains on disposal of businesses/assets - net and interest expense in NEE's condensed consolidated statements of income. See Note 4 - Income Statement Impact of Derivative Instruments. See Note 11 - Disposal of Businesses. Accumulated Other Comprehensive Income (Loss) Net Unrealized Gains (Losses) on Cash Flow Hedges Net Unrealized Gains (Losses) on Available for Sale Securities Defined Benefit Pension and Other Benefits Plans Net Unrealized Gains (Losses) on Foreign Currency Translation Other Comprehensive Income (Loss) Related to Equity Method Investees Total (millions) Nine Months Ended September 30, 2019 Balances, December 31, 2018 $ (55 ) $ (7 ) $ (65 ) $ (63 ) $ 2 $ (188 ) Other comprehensive income (loss) before reclassifications — 8 (52 ) 10 (1 ) (35 ) Amounts reclassified from AOCI 10 (a) 2 (b) (1 ) (c) — — 11 Net other comprehensive income (loss) 10 10 (53 ) 10 (1 ) (24 ) Acquisition of Gulf Power (1 ) — — — — (1 ) Balances, March 31, 2019 (46 ) 3 (118 ) (53 ) 1 (213 ) Other comprehensive income (loss) before reclassifications — 7 (1 ) 8 1 15 Amounts reclassified from AOCI 8 (a) (1 ) (b) — — — 7 Net other comprehensive income (loss) 8 6 (1 ) 8 1 22 Balances, June 30, 2019 (38 ) 9 (119 ) (45 ) 2 (191 ) Other comprehensive income before reclassifications — 4 — 1 1 6 Amounts reclassified from AOCI 6 (a) (1 ) (b) (1 ) (c) — — 4 Net other comprehensive income (loss) 6 3 (1 ) 1 1 10 Balances, September 30, 2019 $ (32 ) $ 12 $ (120 ) $ (44 ) $ 3 $ (181 ) ——————————————— (a) Reclassified to interest expense in NEE's condensed consolidated statements of income. See Note 4 - Income Statement Impact of Derivative Instruments. (b) Reclassified to gains on disposal of investments and other property - net in NEE's condensed consolidated statements of income. (c) Reclassified to other net periodic benefit income in NEE's condensed consolidated statements of income.

Debt

Debt	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Debt	Debt Significant long-term debt issuances and borrowings during the nine months ended September 30, 2020 were as follows: Principal Amount Interest Rate Maturity Date (millions) FPL: First mortgage bonds $ 1,100 2.85 % 2025 Senior unsecured notes $ 1,570 Variable (a)(b) 2023 - 2070 NEECH: Debentures $ 3,490 2.25 % - 3.55 % 2025 - 2030 Debentures, related to NEE's equity units $ 4,500 0.509 % - 1.84 % 2025 Japanese yen denominated term loan $ 530 Variable (a)(c) 2023 ——————————————— (a) Variable rate is based on an underlying index plus or minus a specified margin. (b) Includes approximately $320 million that allows individual noteholders to require repayment at specified dates prior to maturity. (c) A cross-currency interest rate swap agreement was entered into with respect to this debt issuance. See Note 4. In February 2020, NEE sold $2.5 billion of equity units (initially consisting of Corporate Units). Each equity unit has a stated amount of $50 and consists of a contract to purchase NEE common stock (stock purchase contract) and, initially, a 5% undivided beneficial ownership interest in a Series K Debenture due March 1, 2025, issued in the principal amount of $1,000 by NEECH. Each stock purchase contract requires the holder to purchase by no later than March 1, 2023 (the final settlement date) for a price of $50 in cash, a number of shares of NEE common stock (subject to antidilution adjustments) based on a price per share range of $282.04 to $352.55 . If purchased on the final settlement date, as of September 30, 2020 , the number of shares issued would (subject to antidilution adjustments) range from 0.1773 shares if the applicable market value of a share of common stock is less than or equal to $282.04 to 0.1418 shares if the applicable market value of a share is equal to or greater than $352.55 , with applicable market value to be determined using the average closing prices of NEE common stock over a 20 -day trading period ending February 24, 2023. Total annual distributions on the equity units are at the rate of 5.279% , consisting of interest on the debentures ( 1.84% per year) and payments under the stock purchase contracts ( 3.439% per year). The interest rate on the debentures is expected to be reset on or after August 25, 2022. A holder of an equity unit may satisfy its purchase obligation with proceeds raised from remarketing the NEECH debentures that are part of its equity unit. The undivided beneficial ownership interest in the NEECH debenture that is a component of each Corporate Unit is pledged to NEE to secure the holder's obligation to purchase NEE common stock under the related stock purchase contract. If a successful remarketing does not occur on or before the third business day prior to the final settlement date, and a holder has not notified NEE of its intention to settle the stock purchase contract with cash, the debentures that are components of the Corporate Units will be used to satisfy in full the holders' obligations to purchase NEE common stock under the related stock purchase contracts on the final settlement date. The debentures are fully and unconditionally guaranteed by NEE. In September 2020, NEE sold $2.0 billion of equity units (initially consisting of Corporate Units). Each equity unit has a stated amount of $50 and consists of a contract to purchase NEE common stock (stock purchase contract) and, initially, a 5% undivided beneficial ownership interest in a Series L Debenture due September 1, 2025, issued in the principal amount of $1,000 by NEECH. Each stock purchase contract requires the holder to purchase by no later than September 1, 2023 (the final settlement date) for a price of $50 in cash, a number of shares of NEE common stock (subject to antidilution adjustments) based on a price per share range of $295.70 to $369.63 . If purchased on the final settlement date, as of September 30, 2020 , the number of shares issued would (subject to antidilution adjustments) range from 0.1691 shares if the applicable market value of a share of common stock is less than or equal to $295.70 to 0.1353 shares if the applicable market value of a share is equal to or greater than $369.63 , with applicable market value to be determined using the average closing prices of NEE common stock over a 20 -day trading period ending August 29, 2023. Total annual distributions on the equity units are at the rate of 6.219% , consisting of interest on the debentures ( 0.509% per year) and payments under the stock purchase contracts ( 5.710% per year). The interest rate on the debentures is expected to be reset on or after February 22, 2023. A holder of an equity unit may satisfy its purchase obligation with proceeds raised from remarketing the NEECH debentures that are part of its equity unit. The undivided beneficial ownership interest in the NEECH debenture that is a component of each Corporate Unit is pledged to NEE to secure the holder's obligation to purchase NEE common stock under the related stock purchase contract. If a successful remarketing does not occur on or before the third business day prior to the final settlement date, and a holder has not notified NEE of its intention to settle the stock purchase contract with cash, the debentures that are components of the Corporate Units will be used to satisfy in full the holders' obligations to purchase NEE common stock under the related stock purchase contracts on the final settlement date. The debentures are fully and unconditionally guaranteed by NEE. In September 2020, NEECH announced that on October 24, 2020 it will redeem $500 million aggregate principal amount of its Series I Junior Subordinated Debentures due 2072 that accrue interest at an annual rate of 5.125% and $450 million aggregate principal amount of its Series J Junior Subordinated Debentures due 2073 that accrue interest at an annual rate of 5.00%

Summary of Significant Accounti

Summary of Significant Accounting and Reporting Policies	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting and Reporting Policies	Summary of Significant Accounting and Reporting Policies Restricted Cash - At September 30, 2020 and December 31, 2019 , NEE had approximately $476 million ( $114 million for FPL) and $508 million ( $118 million for FPL), respectively, of restricted cash, of which approximately $368 million ( $73 million for FPL) and $411 million ( $54 million for FPL), respectively, is included in current other assets and the remaining balance is included in noncurrent other assets on NEE's and FPL's condensed consolidated balance sheets. Restricted cash is primarily related to debt service payments, bond proceeds held for construction at FPL and Gulf Power and margin cash collateral requirements. In addition, where offsetting positions exist, restricted cash related to margin cash collateral of $158 million is netted against derivative assets and $14 million is netted against derivative liabilities at September 30, 2020 and $139 million is netted against derivative assets and $66 million is netted against derivative liabilities at December 31, 2019 . See Note 4. Disposal of Businesses - On February 11, 2020, a subsidiary of NextEra Energy Resources completed the sale of its ownership interest in two solar generation facilities located in Spain with a total generating capacity of 99.8 MW, which resulted in net cash proceeds of approximately €111 million (approximately $121 million ). In connection with the sale, a gain of approximately $270 million (pretax and after tax) was recorded in NEE's condensed consolidated statements of income for the nine months ended September 30, 2020 . The carrying amounts of the major classes of assets related to the facilities that were classified as held for sale, which are included in current other assets on NEE's condensed consolidated balance sheets, were approximately $440 million at December 31, 2019 and primarily represent property, plant and equipment. Liabilities associated with assets held for sale, which are included in current other liabilities on NEE's condensed consolidated balance sheets, were approximately $647 million at December 31, 2019 and primarily represent long-term debt and interest rate derivatives. In June 2019, subsidiaries of NextEra Energy Resources completed the sale of ownership interests in three wind generation facilities and three solar generation facilities, including noncontrolling interests in two of the solar facilities, located in the Midwest and West regions of the U.S. with a total net generating capacity of 611 MW to a NEP subsidiary for cash proceeds of approximately $1.0 billion , plus working capital of $12 million . A NEER affiliate continues to operate the facilities included in the sale. In connection with the sale, a gain of approximately $341 million ( $259 million after tax) was recorded in NEE's condensed consolidated statements of income for the nine months ended September 30, 2019 , which is included in gains on disposal of businesses/assets - net, and noncontrolling interests of approximately $118 million were recorded on NEE's condensed consolidated balance sheet. Measurement of Credit Losses on Financial Instruments - Effective January 1, 2020, NEE and FPL adopted an accounting standards update that provides for a new methodology, the current expected credit loss (CECL) model, to account for credit losses for certain financial assets measured at amortized cost. On January 1, 2020, NEE recorded a reduction to retained earnings of approximately $11 million representing the cumulative effect of adopting the new standards update, which primarily related to the impact of applying the CECL model to NEER's receivables. The impact of adopting the new standards update was not material to FPL. See also Note 5 - Special Use Funds. Allowance for Doubtful Accounts - FPL maintains an accumulated provision for uncollectible customer accounts receivable that is estimated using a percentage, derived from historical revenue and write-off trends, of the previous four months of revenue. NEER regularly reviews collectibility of its receivables and establishes a provision for losses estimated as a percentage of accounts receivable based on the historical bad debt write-off trends for its retail electricity provider operations. When necessary, NEER uses the specific identification method for all other receivables. Current events and reasonable and supportable forecasts are considered when reviewing all receivables for collectibility. Reference Rate Reform - In March 2020, the Financial Accounting Standards Board (FASB) issued an accounting standards update which provides certain options to apply GAAP guidance on contract modifications and hedge accounting as companies transition from the London Inter-Bank Offered Rate (LIBOR) and other interbank offered rates to alternative reference rates that are yet to be determined or finalized. NEE’s and FPL’s contracts that reference LIBOR or other interbank offered rates mainly relate to debt and derivative instruments. The standards update was effective upon issuance but can be applied prospectively through December 31, 2022. NEE and FPL are currently evaluating whether to apply the options provided by the standards update with regard to their contracts that reference LIBOR or other interbank offered rates as an interest rate benchmark. Storm Cost Recovery - In mid-September 2020, Hurricane Sally made landfall near the Florida panhandle causing damage to much of Gulf Power’s service area and approximately 285,000 customers experienced electrical outages. Gulf Power experienced damage to its transmission and distribution systems, as well as certain power generation equipment. As of September 30, 2020, Gulf Power had not finalized its estimate of storm restoration costs associated with Hurricane Sally; however, its current estimate of recoverable storm restoration costs is approximately $200 million . Gulf Power is authorized to recover storm restoration costs on an interim basis from customers through a surcharge under the terms of its current base rate settlement agreement and subject to a subsequent prudence review by the FPSC. The accrued storm restoration costs eligible for recovery have been deferred and are recorded as a regulatory asset, primarily noncurrent, on NEE’s condensed consolidated balance sheet as of September 30, 2020 . Construction Activity - In September 2019, NEER determined it was no longer moving forward with the construction of a 220 MW wind facility due to unresolved permitting issues. NEE recorded charges of approximately $73 million ( $54 million after tax), which are included in taxes other than income taxes and other in NEE’s condensed consolidated statements of income for the three and nine months ended September 30, 2019, primarily related to the write-off of capitalized construction costs.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2020
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Commitments and Contingencies Commitments - NEE and its subsidiaries have made commitments in connection with a portion of their projected capital expenditures. Capital expenditures at FPL and Gulf Power include, among other things, the cost for construction of additional facilities and equipment to meet customer demand, as well as capital improvements to and maintenance of existing facilities. At NEER, capital expenditures include, among other things, the cost, including capitalized interest, for construction and development of wind and solar projects, the procurement of nuclear fuel and the cost to maintain existing rate-regulated transmission facilities, as well as equity contributions to joint ventures for the development and construction of natural gas pipeline assets and a rate-regulated transmission facility. Also see Note 7 - GridLiance. At September 30, 2020 , estimated capital expenditures for the remainder of 2020 through 2024 for which applicable internal approvals (and also, if required, regulatory approvals such as FPSC approvals for FPL and Gulf Power) have been received were as follows: Remainder of 2020 2021 2022 2023 2024 Total (millions) FPL: Generation: (a) New (b) $ 375 $ 860 $ 900 $ 680 $ 540 $ 3,355 Existing 460 1,055 1,140 1,035 1,020 4,710 Transmission and distribution (c) 860 4,020 3,665 3,825 4,290 16,660 Nuclear fuel 85 220 170 120 145 740 General and other 250 740 780 810 730 3,310 Total $ 2,030 $ 6,895 $ 6,655 $ 6,470 $ 6,725 $ 28,775 Gulf Power $ 260 $ 860 $ 695 $ 625 $ 685 $ 3,125 NEER: Wind (d) $ 785 $ 1,605 $ 30 $ 20 $ 25 $ 2,465 Solar (e) 430 1,520 565 375 — 2,890 Battery storage 250 275 60 — — 585 Nuclear, including nuclear fuel 60 230 185 140 190 805 Natural gas pipelines (f) 195 410 — — — 605 Rate-regulated transmission 85 220 30 10 15 360 Other 180 160 70 70 75 555 Total $ 1,985 $ 4,420 $ 940 $ 615 $ 305 $ 8,265 ——————————————— (a) Includes AFUDC of approximately $10 million , $60 million , $50 million , $25 million and $20 million for the remainder of 2020 through 2024, respectively. (b) Includes land, generation structures, transmission interconnection and integration and licensing. (c) Includes AFUDC of approximately $10 million , $50 million , $50 million , $40 million and $55 million for the remainder of 2020 through 2024, respectively. (d) Consists of capital expenditures for new wind projects, repowering of existing wind projects and related transmission totaling approximately 4,784 MW. (e) Includes capital expenditures for new solar projects and related transmission totaling approximately 2,977 MW. (f) Construction of natural gas pipelines are subject to certain conditions, including applicable regulatory approvals and in certain cases the resolution of legal challenges. The above estimates are subject to continuing review and adjustment and actual capital expenditures may vary significantly from these estimates. Contracts - In addition to the commitments made in connection with the estimated capital expenditures included in the table in Commitments above, FPL has firm commitments under long-term contracts primarily for the transportation of natural gas and coal with expiration dates through 2042 . At September 30, 2020 , NEER has entered into contracts with expiration dates ranging from late October 2020 through 2033 primarily for the purchase of wind turbines, wind towers and solar modules and related construction and development activities, as well as for the supply of uranium, and the conversion, enrichment and fabrication of nuclear fuel, and has made commitments for the construction of natural gas pipelines and a rate-regulated transmission facility. Approximately $4.0 billion of related commitments are included in the estimated capital expenditures table in Commitments above. In addition, NEER has contracts primarily for the transportation and storage of natural gas with expiration dates ranging from late October 2020 through 2041 . The required capacity and/or minimum payments under contracts, including those discussed above, at September 30, 2020 were estimated as follows: Remainder of 2020 2021 2022 2023 2024 Thereafter (millions) FPL (a) $ 270 $ 1,010 $ 965 $ 945 $ 940 $ 10,250 NEER (b)(c)(d) $ 1,420 $ 2,520 $ 415 $ 210 $ 210 $ 1,440 ——————————————— (a) Includes approximately $105 million , $415 million , $415 million , $410 million , $410 million and $6,765 million for the remainder of 2020 through 2024 and thereafter, respectively, of firm commitments related to the natural gas transportation agreements with Sabal Trail and Florida Southeast Connection. The charges associated with these agreements are recoverable through the fuel clause. For the three and nine months ended September 30, 2020 , the charges associated with these agreements totaled approximately $104 million and $280 million , respectively, of which $27 million and $81 million , respectively, were eliminated in consolidation at NEE. For the three and nine months ended September 30, 2019 , the charges associated with these agreements totaled approximately $80 million and $236 million , respectively, of which $28 million and $81 million , respectively, were eliminated in consolidation at NEE. (b) Includes approximately $20 million , $70 million , $70 million , $70 million and $1,160 million for 2021 through 2024 and thereafter, respectively, of firm commitments related to a natural gas transportation agreement with a joint venture, in which NEER has a 31% equity investment, that is constructing a natural gas pipeline. These firm commitments are subject to the completion of construction of the pipeline, which is expected in 2021. (c) Includes approximately $85 million of commitments to invest in technology investments through 2029. (d) Includes approximately $205 million , $355 million , $20 million , $20 million , $10 million and $15 million for the remainder of 2020 through 2024 and thereafter, respectively, of joint obligations of NEECH and NEER. Insurance - Liability for accidents at nuclear power plants is governed by the Price-Anderson Act, which limits the liability of nuclear reactor owners to the amount of insurance available from both private sources and an industry retrospective payment plan. In accordance with this Act, NEE maintains $450 million of private liability insurance per site, which is the maximum obtainable, and participates in a secondary financial protection system, which provides up to $13.3 billion of liability insurance coverage per incident at any nuclear reactor in the U.S. Under the secondary financial protection system, NEE is subject to retrospective assessments of up to $1.1 billion ( $550 million for FPL), plus any applicable taxes, per incident at any nuclear reactor in the U.S., payable at a rate not to exceed $164 million ( $82 million for FPL) per incident per year. NEE and FPL are contractually entitled to recover a proportionate share of such assessments from the owners of minority interests in Seabrook, Duane Arnold and St. Lucie Unit No. 2, which approximates $16 million , $41 million and $20 million , plus any applicable taxes, per incident, respectively. NEE participates in a nuclear insurance mutual company that provides $2.75 billion of limited insurance coverage per occurrence per site for property damage, decontamination and premature decommissioning risks at its nuclear plants and a sublimit of $1.5 billion for non-nuclear perils, except for Duane Arnold which has a sublimit of $500 million . NEE participates in co-insurance of 10% of the first $400 million of losses per site per occurrence. The proceeds from such insurance, however, must first be used for reactor stabilization and site decontamination before they can be used for plant repair. NEE also participates in an insurance program that provides limited coverage for replacement power costs if a nuclear plant is out of service for an extended period of time because of an accident. In the event of an accident at one of NEE's or another participating insured's nuclear plants, NEE could be assessed up to $173 million ( $106 million for FPL), plus any applicable taxes, in retrospective premiums in a policy year. NEE and FPL are contractually entitled to recover a proportionate share of such assessments from the owners of minority interests in Seabrook, Duane Arnold and St. Lucie Unit No. 2, which approximates $2 million , $4 million and $4 million , plus any applicable taxes, respectively. Due to the high cost and limited coverage available from third-party insurers, NEE does not have property insurance coverage for a substantial portion of either its transmission and distribution property or natural gas pipeline assets. If either FPL's or Gulf Power's future storm restoration costs exceed their respective storm reserve, FPL and Gulf Power may recover their storm restoration costs, subject to prudence review by the FPSC, through surcharges approved by the FPSC or through securitization provisions pursuant to Florida law. In the event of a loss, the amount of insurance available might not be adequate to cover property damage and other expenses incurred. Uninsured losses and other expenses, to the extent not recovered from customers in the case of FPL or Gulf Power, would be borne by NEE and either FPL or Gulf Power, and could have a material adverse effect on NEE's and FPL's financial condition, results of operations and liquidity. Coronavirus Pandemic - NEE and FPL are closely monitoring the global outbreak of the novel coronavirus (COVID-19) and are taking steps intended to mitigate the potential risks to NEE and FPL posed by COVID-19. NEE, including FPL, has implemented its pandemic plan, which includes putting in place various processes and procedures to limit the impact on its business, as well as the spread of the virus in its workforce. NEE and its subsidiaries, including FPL, have been able to access the capital markets. To date, there has been no material impact on NEE’s or FPL’s workforce, operations, financial performance, liquidity or on their supply chain as a result of COVID-19; however, the ultimate severity or duration of the outbreak or its effects on the global, national or local economy, the capital and credit markets, or NEE’s and FPL’s workforce, customers and suppliers are uncertain. NEE and FPL cannot predict whether COVID-19 will have a material impact on their businesses, financial condition, liquidity or results of operations.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
Segment Information	Segment Information The table below presents information for NEE's reportable segments, FPL, a rate-regulated utility business, and NEER, which is comprised of competitive energy and rate-regulated transmission businesses, as well as for Gulf Power, a rate-regulated utility business acquired in January 2019 (see Note 7 - Gulf Power). Corporate and Other represents other business activities and includes eliminating entries. During the fourth quarter of 2019, NEET, which was previously reported in Corporate and Other, was moved to the NEER segment. Prior year amounts for NEER and Corporate and Other were adjusted to reflect this segment change. Three Months Ended September 30, 2020 2019 FPL Gulf Power NEER (a) Corporate and Other NEE Consoli- dated FPL Gulf Power NEER (a) Corporate and Other NEE Consoli- dated (millions) Operating revenues $ 3,455 $ 404 $ 953 $ (27 ) $ 4,785 $ 3,491 $ 440 $ 1,675 $ (34 ) $ 5,572 Operating expenses - net $ 2,395 $ 289 $ 1,026 $ 67 $ 3,777 $ 2,518 $ 332 $ 1,117 $ 12 $ 3,979 Net income (loss) attributable to NEE $ 757 $ 91 $ 376 (b) $ 5 $ 1,229 $ 683 $ 76 $ 381 (b) $ (261 ) $ 879 Nine Months Ended September 30, 2020 2019 FPL Gulf Power NEER (a) Corporate and Other NEE FPL Gulf Power NEER (a) Corporate NEE Consoli- dated (millions) Operating revenues $ 8,820 $ 1,065 $ 3,802 $ (85 ) $ 13,602 $ 9,267 $ 1,134 $ 4,301 $ (86 ) $ 14,616 Operating expenses - net $ 5,779 $ 817 $ 2,706 $ 124 $ 9,426 $ 6,582 $ 901 $ 2,579 $ 78 $ 10,140 Net income (loss) attributable to NEE $ 2,148 $ 185 $ 1,175 (b) $ (584 ) $ 2,924 $ 1,934 $ 158 $ 1,374 (b) $ (672 ) $ 2,794 ——————————————— (a) Interest expense allocated from NEECH is based on a deemed capital structure of 70% debt and differential membership interests sold by NextEra Energy Resources' subsidiaries. Residual NEECH corporate interest expense is included in Corporate and Other. (b) See Note 6 for a discussion of NEER's tax benefits related to PTCs. September 30, 2020 December 31, 2019 FPL Gulf Power NEER Corporate and Other NEE Consoli- dated FPL Gulf Power NEER Corporate and Other NEE Consoli- dated (millions) Total assets $ 60,503 $ 6,679 $ 54,961 $ 4,239 $ 126,382 $ 57,188 $ 5,855 $ 51,516 $ 3,132 $ 117,691

Summary of Significant Accoun_2

Summary of Significant Accounting and Reporting Policies (Policies)	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Derivative Instruments	NEE and FPL use derivative instruments (primarily swaps, options, futures and forwards) to manage the physical and financial risks inherent in the purchase and sale of fuel and electricity, as well as interest rate and foreign currency exchange rate risk associated primarily with outstanding and expected future debt issuances and borrowings, and to optimize the value of NEER's power generation and gas infrastructure assets. NEE and FPL do not utilize hedge accounting for their cash flow and fair value hedges. With respect to commodities related to NEE's competitive energy business, NEER employs risk management procedures to conduct its activities related to optimizing the value of its power generation and gas infrastructure assets, providing full energy and capacity requirements services primarily to distribution utilities, and engaging in power and gas marketing and trading activities to take advantage of expected future favorable price movements and changes in the expected volatility of prices in the energy markets. These risk management activities involve the use of derivative instruments executed within prescribed limits to manage the risk associated with fluctuating commodity prices. Transactions in derivative instruments are executed on recognized exchanges or via the OTC markets, depending on the most favorable credit terms and market execution factors. For NEER's power generation and gas infrastructure assets, derivative instruments are used to hedge all or a portion of the expected output of these assets. These hedges are designed to reduce the effect of adverse changes in the wholesale forward commodity markets associated with NEER's power generation and gas infrastructure assets. With regard to full energy and capacity requirements services, NEER is required to vary the quantity of energy and related services based on the load demands of the customers served. For this type of transaction, derivative instruments are used to hedge the anticipated electricity quantities required to serve these customers and reduce the effect of unfavorable changes in the forward energy markets. Additionally, NEER takes positions in energy markets based on differences between actual forward market levels and management's view of fundamental market conditions, including supply/demand imbalances, changes in traditional flows of energy, changes in short- and long-term weather patterns and anticipated regulatory and legislative outcomes. NEER uses derivative instruments to realize value from these market dislocations, subject to strict risk management limits around market, operational and credit exposure. Derivative instruments, when required to be marked to market, are recorded on NEE's and FPL's condensed consolidated balance sheets as either an asset or liability measured at fair value. At FPL, substantially all changes in the derivatives' fair value are deferred as a regulatory asset or liability until the contracts are settled, and, upon settlement, any gains or losses are passed through the fuel clause. For NEE's non-rate regulated operations, predominantly NEER, essentially all changes in the derivatives' fair value for power purchases and sales, fuel sales and trading activities are recognized on a net basis in operating revenues and the equity method investees' related activity is recognized in equity in earnings of equity method investees in NEE's condensed consolidated statements of income. Settlement gains and losses are included within the line items in the condensed consolidated statements of income to which they relate. Transactions for which physical delivery is deemed not to have occurred are presented on a net basis in the condensed consolidated statements of income. For commodity derivatives, NEE believes that, where offsetting positions exist at the same location for the same time, the transactions are considered to have been netted and therefore physical delivery has been deemed not to have occurred for financial reporting purposes. Settlements related to derivative instruments are primarily recognized in net cash provided by operating activities in NEE's and FPL's condensed consolidated statements of cash flows.
Fair Value Measurements	The fair value of assets and liabilities are determined using either unadjusted quoted prices in active markets (Level 1) or pricing inputs that are observable (Level 2) whenever that information is available and using unobservable inputs (Level 3) to estimate fair value only when relevant observable inputs are not available. NEE and FPL use several different valuation techniques to measure the fair value of assets and liabilities, relying primarily on the market approach of using prices and other market information for identical and/or comparable assets and liabilities for those assets and liabilities that are measured at fair value on a recurring basis. NEE's and FPL's assessment of the significance of any particular input to the fair value measurement requires judgment and may affect placement within the fair value hierarchy levels. Non-performance risk, including the consideration of a credit valuation adjustment, is also considered in the determination of fair value for all assets and liabilities measured at fair value. Cash Equivalents and Restricted Cash Equivalents - NEE and FPL hold investments in money market funds. The fair value of these funds is estimated using a market approach based on current observable market prices. Special Use Funds and Other Investments - NEE and FPL hold primarily debt and equity securities directly, as well as indirectly through commingled funds. Substantially all directly held equity securities are valued at their quoted market prices. For directly held debt securities, multiple prices and price types are obtained from pricing vendors whenever possible, which enables cross-provider validations. A primary price source is identified based on asset type, class or issue of each security. Commingled funds, which are similar to mutual funds, are maintained by banks or investment companies and hold certain investments in accordance with a stated set of objectives. The fair value of commingled funds is primarily derived from the quoted prices in active markets of the underlying securities. Because the fund shares are offered to a limited group of investors, they are not considered to be traded in an active market. Derivative Instruments - NEE and FPL measure the fair value of commodity contracts using a combination of market and income approaches utilizing prices observed on commodities exchanges and in the OTC markets, or through the use of industry-standard valuation techniques, such as option modeling or discounted cash flows techniques, incorporating both observable and unobservable valuation inputs. The resulting measurements are the best estimate of fair value as represented by the transfer of the asset or liability through an orderly transaction in the marketplace at the measurement date. Most exchange-traded derivative assets and liabilities are valued directly using unadjusted quoted prices. For exchange-traded derivative assets and liabilities where the principal market is deemed to be inactive based on average daily volumes and open interest, the measurement is established using settlement prices from the exchanges, and therefore considered to be valued using other observable inputs. NEE, through its subsidiaries, including FPL, also enters into OTC commodity contract derivatives. The majority of these contracts are transacted at liquid trading points, and the prices for these contracts are verified using quoted prices in active markets from exchanges, brokers or pricing services for similar contracts. NEE, through NEER, also enters into full requirements contracts, which, in most cases, meet the definition of derivatives and are measured at fair value. These contracts typically have one or more inputs that are not observable and are significant to the valuation of the contract. In addition, certain exchange and non-exchange traded derivative options at NEE have one or more significant inputs that are not observable, and are valued using industry-standard option models. In all cases where NEE and FPL use significant unobservable inputs for the valuation of a commodity contract, consideration is given to the assumptions that market participants would use in valuing the asset or liability. The primary input to the valuation models for commodity contracts is the forward commodity curve for the respective instruments. Other inputs include, but are not limited to, assumptions about market liquidity, volatility, correlation and contract duration as more fully described below in Significant Unobservable Inputs Used in Recurring Fair Value Measurements. In instances where the reference markets are deemed to be inactive or do not have transactions for a similar contract, the derivative assets and liabilities may be valued using significant other observable inputs and potentially significant unobservable inputs. In such instances, the valuation for these contracts is established using techniques including extrapolation from or interpolation between actively traded contracts, or estimated basis adjustments from liquid trading points. NEE and FPL regularly evaluate and validate the inputs used to determine fair value by a number of methods, consisting of various market price verification procedures, including the use of pricing services and multiple broker quotes to support the market price of the various commodities. In all cases where there are assumptions and models used to generate inputs for valuing derivative assets and liabilities, the review and verification of the assumptions, models and changes to the models are undertaken by individuals that are independent of those responsible for estimating fair value. NEE uses interest rate contracts and foreign currency contracts to mitigate and adjust interest rate and foreign currency exchange exposure related primarily to certain outstanding and expected future debt issuances and borrowings when deemed appropriate based on market conditions or when required by financing agreements. NEE estimates the fair value of these derivatives using an income approach based on a discounted cash flows valuation technique utilizing the net amount of estimated future cash inflows and outflows related to the agreements.
Restricted Cash	Restricted Cash - At September 30, 2020 and December 31, 2019 , NEE had approximately $476 million ( $114 million for FPL) and $508 million ( $118 million for FPL), respectively, of restricted cash, of which approximately $368 million ( $73 million for FPL) and $411 million ( $54 million for FPL), respectively, is included in current other assets and the remaining balance is included in noncurrent other assets on NEE's and FPL's condensed consolidated balance sheets. Restricted cash is primarily related to debt service payments, bond proceeds held for construction at FPL and Gulf Power and margin cash collateral requirements. In addition, where offsetting positions exist, restricted cash related to margin cash collateral of $158 million is netted against derivative assets and $14 million is netted against derivative liabilities at September 30, 2020 and $139 million is netted against derivative assets and $66 million is netted against derivative liabilities at December 31, 2019 . See Note 4.
Disposal of Businesses	Disposal of Businesses - On February 11, 2020, a subsidiary of NextEra Energy Resources completed the sale of its ownership interest in two solar generation facilities located in Spain with a total generating capacity of 99.8 MW, which resulted in net cash proceeds of approximately €111 million (approximately $121 million ). In connection with the sale, a gain of approximately $270 million (pretax and after tax) was recorded in NEE's condensed consolidated statements of income for the nine months ended September 30, 2020 . The carrying amounts of the major classes of assets related to the facilities that were classified as held for sale, which are included in current other assets on NEE's condensed consolidated balance sheets, were approximately $440 million at December 31, 2019 and primarily represent property, plant and equipment. Liabilities associated with assets held for sale, which are included in current other liabilities on NEE's condensed consolidated balance sheets, were approximately $647 million at December 31, 2019 and primarily represent long-term debt and interest rate derivatives. In June 2019, subsidiaries of NextEra Energy Resources completed the sale of ownership interests in three wind generation facilities and three solar generation facilities, including noncontrolling interests in two of the solar facilities, located in the Midwest and West regions of the U.S. with a total net generating capacity of 611 MW to a NEP subsidiary for cash proceeds of approximately $1.0 billion , plus working capital of $12 million . A NEER affiliate continues to operate the facilities included in the sale. In connection with the sale, a gain of approximately $341 million ( $259 million after tax) was recorded in NEE's condensed consolidated statements of income for the nine months ended September 30, 2019 , which is included in gains on disposal of businesses/assets - net, and noncontrolling interests of approximately $118 million were recorded on NEE's condensed consolidated balance sheet.
Measurement of Credit Losses on Financial Instruments	Measurement of Credit Losses on Financial Instruments - Effective January 1, 2020, NEE and FPL adopted an accounting standards update that provides for a new methodology, the current expected credit loss (CECL) model, to account for credit losses for certain financial assets measured at amortized cost. On January 1, 2020, NEE recorded a reduction to retained earnings of approximately $11 million representing the cumulative effect of adopting the new standards update, which primarily related to the impact of applying the CECL model to NEER's receivables. The impact of adopting the new standards update was not material to FPL. See also Note 5 - Special Use Funds.
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts - FPL maintains an accumulated provision for uncollectible customer accounts receivable that is estimated using a percentage, derived from historical revenue and write-off trends, of the previous four months of revenue. NEER regularly reviews collectibility of its receivables and establishes a provision for losses estimated as a percentage of accounts receivable based on the historical bad debt write-off trends for its retail electricity provider operations. When necessary, NEER uses the specific identification method for all other receivables. Current events and reasonable and supportable forecasts are considered when reviewing all receivables for collectibility.
Reference Rate Reform	Reference Rate Reform - In March 2020, the Financial Accounting Standards Board (FASB) issued an accounting standards update which provides certain options to apply GAAP guidance on contract modifications and hedge accounting as companies transition from the London Inter-Bank Offered Rate (LIBOR) and other interbank offered rates to alternative reference rates that are yet to be determined or finalized. NEE’s and FPL’s contracts that reference LIBOR or other interbank offered rates mainly relate to debt and derivative instruments. The standards update was effective upon issuance but can be applied prospectively through December 31, 2022. NEE and FPL are currently evaluating whether to apply the options provided by the standards update with regard to their contracts that reference LIBOR or other interbank offered rates as an interest rate benchmark.
Storm Cost Recovery	Storm Cost Recovery - In mid-September 2020, Hurricane Sally made landfall near the Florida panhandle causing damage to much of Gulf Power’s service area and approximately 285,000 customers experienced electrical outages. Gulf Power experienced damage to its transmission and distribution systems, as well as certain power generation equipment. As of September 30, 2020, Gulf Power had not finalized its estimate of storm restoration costs associated with Hurricane Sally; however, its current estimate of recoverable storm restoration costs is approximately $200 million . Gulf Power is authorized to recover storm restoration costs on an interim basis from customers through a surcharge under the terms of its current base rate settlement agreement and subject to a subsequent prudence review by the FPSC. The accrued storm restoration costs eligible for recovery have been deferred and are recorded as a regulatory asset, primarily noncurrent, on NEE’s condensed consolidated balance sheet as of September 30, 2020 .
Construction Activity	Construction Activity - In September 2019, NEER determined it was no longer moving forward with the construction of a 220 MW wind facility due to unresolved permitting issues. NEE recorded charges of approximately $73 million ( $54 million after tax), which are included in taxes other than income taxes and other in NEE’s condensed consolidated statements of income for the three and nine months ended September 30, 2019, primarily related to the write-off of capitalized construction costs.

Employee Retirement Benefits (T

Employee Retirement Benefits (Tables)	9 Months Ended
	Sep. 30, 2020
Retirement Benefits [Abstract]
Net periodic benefit (income) cost	The components of net periodic income for the plans are as follows: Pension Benefits Postretirement Benefits Pension Benefits Postretirement Benefits Three Months Ended September 30, Three Months Ended September 30, Nine Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 2020 2019 2020 2019 (millions) Service cost $ 22 $ 20 $ — $ — $ 64 $ 60 $ 1 $ 1 Interest cost 23 28 3 3 69 86 6 7 Expected return on plan assets (80 ) (78 ) — — (241 ) (235 ) — — Amortization of prior service benefit (1 ) — (4 ) (4 ) (1 ) (1 ) (12 ) (12 ) Amortization of actuarial loss 4 — — — 13 — 2 — Special termination benefits (a) 4 1 — — 13 17 — — Net periodic income at NEE $ (28 ) $ (29 ) $ (1 ) $ (1 ) $ (83 ) $ (73 ) $ (3 ) $ (4 ) Net periodic income allocated to FPL $ (19 ) $ (18 ) $ (1 ) $ (1 ) $ (58 ) $ (53 ) $ (2 ) $ (3 ) _________________________ (a) Reflects enhanced early retirement benefits.

Derivative Instruments (Tables)

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2020
Derivative [Line Items]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The tables below present NEE's and FPL's gross derivative positions at September 30, 2020 and December 31, 2019 , as required by disclosure rules. However, the majority of the underlying contracts are subject to master netting agreements and generally would not be contractually settled on a gross basis. Therefore, the tables below also present the derivative positions on a net basis, which reflect the offsetting of positions of certain transactions within the portfolio, the contractual ability to settle contracts under master netting arrangements and the netting of margin cash collateral (see Note 5 - Recurring Fair Value Measurements for netting information), as well as the location of the net derivative position on the condensed consolidated balance sheets. September 30, 2020 Gross Basis Net Basis Assets Liabilities Assets Liabilities (millions) NEE: Commodity contracts $ 4,435 $ 2,795 $ 2,039 $ 543 Interest rate contracts 33 1,324 5 1,296 Foreign currency contracts 15 47 19 51 Total fair values $ 4,483 $ 4,166 $ 2,063 $ 1,890 FPL: Commodity contracts $ 4 $ 13 $ 2 $ 11 Net fair value by NEE balance sheet line item: Current derivative assets $ 441 Noncurrent derivative assets (a) 1,622 Current derivative liabilities (b) $ 310 Noncurrent derivative liabilities 1,580 Total derivatives $ 2,063 $ 1,890 Net fair value by FPL balance sheet line item: Current other assets $ 2 Current other liabilities $ 10 Noncurrent other liabilities 1 Total derivatives $ 2 $ 11 ——————————————— (a) Reflects the netting of approximately $158 million in margin cash collateral received from counterparties. (b) Reflects the netting of approximately $14 million in margin cash collateral paid to counterparties. December 31, 2019 Gross Basis Net Basis Assets Liabilities Assets Liabilities (millions) NEE: Commodity contracts $ 5,050 $ 3,201 $ 2,350 $ 576 Interest rate contracts 26 742 9 725 Foreign currency contracts 26 38 27 39 Total fair values $ 5,102 $ 3,981 $ 2,386 $ 1,340 FPL: Commodity contracts $ 4 $ 14 $ 3 $ 13 Net fair value by NEE balance sheet line item: Current derivative assets (a) $ 762 Noncurrent derivative assets (b) 1,624 Current derivative liabilities (c) $ 344 Current other liabilities (d) 133 Noncurrent derivative liabilities 863 Total derivatives $ 2,386 $ 1,340 Net fair value by FPL balance sheet line item: Current other assets $ 3 Current other liabilities $ 12 Noncurrent other liabilities 1 Total derivatives $ 3 $ 13 ——————————————— (a) Reflects the netting of approximately $2 million in margin cash collateral received from counterparties. (b) Reflects the netting of approximately $139 million in margin cash collateral received from counterparties. (c) Reflects the netting of approximately $66 million in margin cash collateral paid to counterparties. (d) See Note 11 - Disposal of Businesses.
Net Notional Volumes	NEE and FPL had derivative commodity contracts for the following net notional volumes: September 30, 2020 December 31, 2019 Commodity Type NEE FPL NEE FPL (millions) Power (76 ) MWh — MWh (81 ) MWh 1 MWh Natural gas (352 ) MMBtu 143 MMBtu (1,723 ) MMBtu 161 MMBtu Oil (14 ) barrels — (13 ) barrels —
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	Gains (losses) related to NEE's derivatives are recorded in NEE's condensed consolidated statements of income as follows: Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 (millions) Commodity contracts (a) - operating revenues $ (327 ) $ 366 $ 245 $ 641 Foreign currency contracts - interest expense 34 (13 ) (30 ) (21 ) Interest rate contracts - interest expense 131 (352 ) (710 ) (883 ) Losses reclassified from AOCI: Interest rate contracts (b) (3 ) (6 ) (30 ) (24 ) Foreign currency contracts - interest expense (1 ) (1 ) (3 ) (3 ) Total $ (166 ) $ (6 ) $ (528 ) $ (290 ) ——————————————— (a) For the three and nine months ended September 30, 2020 , FPL recorded losses of approximately $1 million and $3 million , respectively, related to commodity contracts as regulatory assets on its condensed consolidated balance sheets. For the three and nine months ended September 30, 2019 , FPL recorded gains of approximately $4 million and $8 million , respectively, related to commodity contracts as regulatory liabilities on its condensed consolidated balance sheets. (b) For the nine months ended September 30, 2020 , approximately $23 million was reclassified to gains on disposal of businesses/assets - net (see Note 11 - Disposal of Businesses); remaining balances were reclassified to interest expense on NEE's condensed consolidated statements of income.

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	9 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Financial assets and liabilities and other fair value measurements	NEE's and FPL's financial assets and liabilities and other fair value measurements made on a recurring basis by fair value hierarchy level are as follows: September 30, 2020 Level 1 Level 2 Level 3 Netting (a) Total (millions) Assets: Cash equivalents and restricted cash equivalents: (b) NEE - equity securities $ 1,804 $ — $ — $ 1,804 FPL - equity securities $ 191 $ — $ — $ 191 Special use funds: (c) NEE: Equity securities $ 1,994 $ 2,187 (d) $ — $ 4,181 U.S. Government and municipal bonds $ 522 $ 157 $ — $ 679 Corporate debt securities $ 1 $ 850 $ — $ 851 Mortgage-backed securities $ — $ 440 $ — $ 440 Other debt securities $ — $ 112 $ — $ 112 FPL: Equity securities $ 680 $ 1,983 (d) $ — $ 2,663 U.S. Government and municipal bonds $ 405 $ 103 $ — $ 508 Corporate debt securities $ — $ 600 $ — $ 600 Mortgage-backed securities $ — $ 348 $ — $ 348 Other debt securities $ — $ 107 $ — $ 107 Other investments: (e) NEE: Equity securities $ 61 $ — $ — $ 61 Debt securities $ 93 $ 109 $ — $ 202 Derivatives: NEE: Commodity contracts $ 1,029 $ 1,796 $ 1,610 $ (2,396 ) $ 2,039 (f) Interest rate contracts $ — $ 33 $ — $ (28 ) $ 5 (f) Foreign currency contracts $ — $ 15 $ — $ 4 $ 19 (f) FPL - commodity contracts $ — $ 2 $ 2 $ (2 ) $ 2 (f) Liabilities: Derivatives: NEE: Commodity contracts $ 1,027 $ 1,328 $ 440 $ (2,252 ) $ 543 (f) Interest rate contracts $ — $ 1,304 $ 20 $ (28 ) $ 1,296 (f) Foreign currency contracts $ — $ 47 $ — $ 4 $ 51 (f) FPL - commodity contracts $ — $ 5 $ 8 $ (2 ) $ 11 (f) ——————————————— (a) Includes the effect of the contractual ability to settle contracts under master netting arrangements and the netting of margin cash collateral payments and receipts. NEE and FPL also have contract settlement receivable and payable balances that are subject to master netting arrangements but are not offset within the condensed consolidated balance sheets and are recorded in customer receivables - net and accounts payable, respectively. (b) Includes restricted cash equivalents of approximately $231 million ( $73 million for FPL) in current other assets and $82 million ( $41 million for FPL) in noncurrent other assets on the condensed consolidated balance sheets. (c) Excludes investments accounted for under the equity method and loans not measured at fair value on a recurring basis. See Fair Value of Financial Instruments Recorded at Other than Fair Value below. (d) Primarily invested in commingled funds whose underlying securities would be Level 1 if those securities were held directly by NEE or FPL. (e) Included in noncurrent other assets on NEE's condensed consolidated balance sheet. (f) See Note 4 - Fair Value of Derivative Instruments for a reconciliation of net derivatives to NEE's and FPL's condensed consolidated balance sheets. December 31, 2019 Level 1 Level 2 Level 3 Netting (a) Total (millions) Assets: Cash equivalents and restricted cash equivalents: (b) NEE - equity securities $ 363 $ — $ — $ 363 FPL - equity securities $ 156 $ — $ — $ 156 Special use funds: (c) NEE: Equity securities $ 1,875 $ 2,088 (d) $ — $ 3,963 U.S. Government and municipal bonds $ 567 $ 150 $ — $ 717 Corporate debt securities $ — $ 748 $ — $ 748 Mortgage-backed securities $ — $ 517 $ — $ 517 Other debt securities $ — $ 117 $ — $ 117 FPL: Equity securities $ 596 $ 1,895 (d) $ — $ 2,491 U.S. Government and municipal bonds $ 429 $ 106 $ — $ 535 Corporate debt securities $ — $ 533 $ — $ 533 Mortgage-backed securities $ — $ 395 $ — $ 395 Other debt securities $ — $ 111 $ — $ 111 Other investments: (e) NEE: Equity securities $ 34 $ 12 $ — $ 46 Debt securities $ 82 $ 69 $ — $ 151 Derivatives: NEE: Commodity contracts $ 1,229 $ 2,082 $ 1,739 $ (2,700 ) $ 2,350 (f) Interest rate contracts $ — $ 24 $ 2 $ (17 ) $ 9 (f) Foreign currency contracts $ — $ 26 $ — $ 1 $ 27 (f) FPL - commodity contracts $ — $ 3 $ 1 $ (1 ) $ 3 (f) Liabilities: Derivatives: NEE: Commodity contracts $ 1,365 $ 1,446 $ 390 $ (2,625 ) $ 576 (f) Interest rate contracts $ — $ 598 $ 144 $ (17 ) $ 725 (f) Foreign currency contracts $ — $ 38 $ — $ 1 $ 39 (f) FPL - commodity contracts $ — $ 5 $ 9 $ (1 ) $ 13 (f) ——————————————— (a) Includes the effect of the contractual ability to settle contracts under master netting arrangements and the netting of margin cash collateral payments and receipts. NEE and FPL also have contract settlement receivable and payable balances that are subject to master netting arrangements but are not offset within the condensed consolidated balance sheets and are recorded in customer receivables - net and accounts payable, respectively. (b) Includes restricted cash equivalents of approximately $60 million ( $54 million for FPL) in current other assets and $64 million ( $64 million for FPL) in noncurrent other assets on the condensed consolidated balance sheets. (c) Excludes investments accounted for under the equity method and loans not measured at fair value on a recurring basis. See Fair Value of Financial Instruments Recorded at Other than Fair Value below. (d) Primarily invested in commingled funds whose underlying securities would be Level 1 if those securities were held directly by NEE or FPL. (e) Included in noncurrent other assets on NEE's condensed consolidated balance sheet. (f) See Note 4 - Fair Value of Derivative Instruments for a reconciliation of net derivatives to NEE's and FPL's condensed consolidated balance sheets.
Significant unobservable inputs used in valuation of contracts categorized as Level 3	The significant unobservable inputs used in the valuation of NEE's commodity contracts categorized as Level 3 of the fair value hierarchy at September 30, 2020 are as follows: Fair Value at Valuation Significant Weighted- Transaction Type September 30, 2020 Technique(s) Unobservable Inputs Range average (a) Assets Liabilities (millions) Forward contracts - power $ 754 $ 106 Discounted cash flow Forward price (per MWh) $2 — $157 $28 Forward contracts - gas 270 40 Discounted cash flow Forward price (per MMBtu) $— — $8 $3 Forward contracts - congestion 25 5 Discounted cash flow Forward price (per MWh) $(5) — $33 $— Options - power 35 17 Option models Implied correlations 40% — 85% 55% Implied volatilities 5% — 152% 48% Options - primarily gas 198 203 Option models Implied correlations 40% — 100% 57% Implied volatilities 16% — 270% 42% Full requirements and unit contingent contracts 301 56 Discounted cash flow Forward price (per MWh) $6 — $382 $48 Customer migration rate (b) —% — 122% 2% Forward contracts - other 27 13 Total $ 1,610 $ 440 ——————————————— (a) Unobservable inputs were weighted by volume. (b) Applies only to full requirements contracts.
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation	The sensitivity of NEE's fair value measurements to increases (decreases) in the significant unobservable inputs is as follows: Significant Unobservable Input Position Impact on Fair Value Measurement Forward price Purchase power/gas Increase (decrease) Sell power/gas Decrease (increase) Implied correlations Purchase option Decrease (increase) Sell option Increase (decrease) Implied volatilities Purchase option Increase (decrease) Sell option Decrease (increase) Customer migration rate Sell power (a) Decrease (increase) ——————————————— (a) Assumes the contract is in a gain position.
Reconciliation of changes in the fair value measured based on significant unobservable inputs	The reconciliation of changes in the fair value of derivatives that are based on significant unobservable inputs is as follows: Three Months Ended September 30, 2020 2019 NEE FPL NEE FPL (millions) Fair value of net derivatives based on significant unobservable inputs at June 30 $ 1,305 $ (6 ) $ 1,231 $ (13 ) Realized and unrealized gains (losses): Included in earnings (a) (55 ) — (29 ) — Included in other comprehensive income (loss) (b) — — 6 — Included in regulatory assets and liabilities (1 ) (1 ) 2 2 Purchases 37 — 27 — Settlements (108 ) 1 (146 ) 1 Issuances (26 ) — (13 ) — Transfers out (c) (2 ) — (27 ) — Fair value of net derivatives based on significant unobservable inputs at September 30 $ 1,150 $ (6 ) $ 1,051 $ (10 ) Gains (losses) included in earnings attributable to the change in unrealized gains (losses) relating to derivatives held at the reporting date (d) $ (46 ) $ — $ 53 $ — ——————————————— (a) For the three months ended September 30, 2020 and 2019 , realized and unrealized losses of approximately $55 million and $23 million , respectively, are included in the condensed consolidated statements of income in operating revenues and the balance is included in interest expense. (b) Included in net unrealized gains (losses) on foreign currency translation in the condensed consolidated statements of comprehensive income. (c) Transfers from Level 3 to Level 2 were a result of increased observability of market data. (d) For the three months ended September 30, 2020 and 2019 , unrealized gains (losses) of approximately $(46) million and $61 million , respectively, are included in the condensed consolidated statements of income in operating revenues and the balance is included in interest expense. Nine Months Ended September 30, 2020 2019 NEE FPL NEE FPL (millions) Fair value of net derivatives based on significant unobservable inputs at December 31 of prior period $ 1,207 $ (8 ) $ 647 $ (36 ) Realized and unrealized gains (losses): Included in earnings (a) 294 — 663 — Included in other comprehensive income (loss) (b) 1 — 7 — Included in regulatory assets and liabilities (3 ) (3 ) 1 1 Purchases 157 — 94 — Sales (c) 114 — — — Settlements (490 ) 5 (265 ) 23 Issuances (98 ) — (64 ) — Transfers out (d) (32 ) — (32 ) 2 Fair value of net derivatives based on significant unobservable inputs at September 30 $ 1,150 $ (6 ) $ 1,051 $ (10 ) Gains (losses) included in earnings attributable to the change in unrealized gains (losses) relating to derivatives held at the reporting date (e) $ 79 $ — $ 476 $ — ——————————————— (a) For the nine months ended September 30, 2020 and 2019 , realized and unrealized gains of approximately $314 million and $680 million , respectively, are included in the condensed consolidated statements of income in operating revenues and the balance is included in interest expense. (b) Included in net unrealized gains (losses) on foreign currency translation in the condensed consolidated statements of comprehensive income. (c) See Note 11 - Disposal of Businesses. (d) Transfers from Level 3 to Level 2 were a result of increased observability of market data. (e) For the nine months ended September 30, 2020 and 2019 , unrealized gains of approximately $90 million and $493 million , respectively, are included in the condensed consolidated statements of income in operating revenues and the balance is included in interest expense.
Fair Value, by Balance Sheet Grouping	The carrying amounts of commercial paper and other short-term debt approximate their fair values. The carrying amounts and estimated fair values of other financial instruments recorded at other than fair value are as follows: September 30, 2020 December 31, 2019 Carrying Amount Estimated Fair Value Carrying Amount Estimated Fair Value (millions) NEE: Special use funds (a) $ 912 $ 912 $ 892 $ 891 Other investments (b) $ 25 $ 25 $ 30 $ 30 Long-term debt, including current portion $ 47,838 $ 52,527 (c) $ 39,667 (d) $ 42,928 (c) (d) FPL: Special use funds (a) $ 719 $ 718 $ 706 $ 705 Long-term debt, including current portion $ 15,809 $ 19,415 (c) $ 14,161 $ 16,448 (c) ——————————————— (a) Primarily represents investments accounted for under the equity method and loans not measured at fair value on a recurring basis (Level 2). (b) Included in noncurrent other assets on NEE's condensed consolidated balance sheets. (c) At September 30, 2020 and December 31, 2019 , substantially all is Level 2 for NEE and all is Level 2 for FPL. (d) Excludes debt totaling approximately $463 million classified as held for sale, which is included in current other liabilities on NEE's condensed consolidated balance sheet at December 31, 2019, for which the carrying amount approximated fair value. See Note 11 - Disposal of Businesses.
Unrealized Gains (Losses) Recognized On Equity Securities Still Held at The Reporting Date	Unrealized gains (losses) recognized on equity securities held at September 30, 2020 and 2019 are as follows: NEE FPL Three Months Ended September 30, Nine Months Ended September 30, Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 2020 2019 2020 2019 (millions) Unrealized gains (losses) $ 223 $ 21 $ 65 $ 500 $ 129 $ 18 $ 50 $ 327
Gains and Losses on Available-for-sale Debt Securities	Realized gains and losses and proceeds from the sale or maturity of available for sale debt securities are as follows: NEE FPL Three Months Ended September 30, Nine Months Ended September 30, Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 2020 2019 2020 2019 (millions) Realized gains $ 30 $ 21 $ 86 $ 47 $ 21 $ 15 $ 66 $ 30 Realized losses $ 17 $ 14 $ 50 $ 34 $ 10 $ 11 $ 38 $ 20 Proceeds from sale or maturity of securities $ 555 $ 612 $ 2,046 $ 2,087 $ 475 $ 489 $ 1,747 $ 1,717 The unrealized gains and unrealized losses on available for sale debt securities and the fair value of available for sale debt securities in an unrealized loss position are as follows: NEE FPL September 30, 2020 December 31, 2019 September 30, 2020 December 31, 2019 (millions) Unrealized gains $ 120 $ 75 $ 92 $ 58 Unrealized losses (a) $ 23 $ 7 $ 21 $ 7 Fair value $ 314 $ 314 $ 239 $ 240 ——————————————— (a) Unrealized losses on available for sale debt securities in an unrealized loss position for greater than twelve months at September 30, 2020 and December 31, 2019 were not material to NEE or FPL.

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Reconciliation Between the Effective Income Tax Rates and the Applicable Statutory Rate	reconciliation between the effective income tax rates and the applicable statutory rate is as follows: NEE FPL NEE FPL Three Months Ended September 30, Three Months Ended September 30, Nine Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 2020 2019 2020 2019 Statutory federal income tax rate 21.0 % 21.0 % 21.0 % 21.0 % 21.0 % 21.0 % 21.0 % 21.0 % Increases (reductions) resulting from: State income taxes - net of federal income tax benefit (a) 1.9 4.3 3.7 3.9 1.3 3.4 4.0 3.3 Taxes attributable to noncontrolling interests 1.8 2.0 — — 2.9 1.9 — — PTCs and ITCs - NEER (7.4 ) (11.5 ) — — (8.7 ) (7.9 ) — — Amortization of deferred regulatory credit (b) (4.4 ) (5.6 ) (5.6 ) (5.2 ) (5.4 ) (7.0 ) (5.2 ) (8.0 ) Foreign operations (c) — — — — (2.2 ) — — — Other - net (2.6 ) (3.4 ) (0.9 ) (1.6 ) (5.9 ) (2.3 ) (1.3 ) (0.7 ) Effective income tax rate 10.3 % 6.8 % 18.2 % 18.1 % 3.0 % 9.1 % 18.5 % 15.6 % ——————————————— (a) The three and nine months ended September 30, 2019 reflect a valuation allowance of approximately $48 million related to deferred state tax credits. (b) The nine months ended September 30, 2019 reflects a second quarter 2019 adjustment of approximately $83 million recorded by FPL to reduce income tax expense for the cumulative amortization of excess deferred income taxes from January 1, 2018 as a result of the FPSC's order in connection with its review of impacts associated with tax reform. One of the provisions of the order requires FPL to amortize approximately $870 million of its excess deferred income taxes over a period not to exceed ten years. (c) The gain on sale of the Spain solar projects was not taxable for federal and state income tax purposes (see Note 11 - Disposal of Businesses).

Equity (Tables)

Equity (Tables)	9 Months Ended
	Sep. 30, 2020
Equity [Abstract]
Reconciliation of basic and diluted earnings per share of common stock	Earnings Per Share - The reconciliation of NEE's basic and diluted earnings per share attributable to NEE is as follows: Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 (millions, except per share amounts) Numerator: Net income attributable to NEE - basic $ 1,229 $ 879 $ 2,924 $ 2,794 Adjustment for the impact of dilutive securities at NEP (a) (1 ) — — — Net income attributable to NEE - assuming dilution $ 1,228 $ 879 $ 2,924 $ 2,794 Denominator: Weighted-average number of common shares outstanding - basic 489.9 481.9 489.6 479.7 Equity units, stock options, performance share awards and restricted stock (b) 2.3 4.1 2.3 3.8 Weighted-average number of common shares outstanding - assuming dilution 492.2 486.0 491.9 483.5 Earnings per share attributable to NEE: Basic $ 2.51 $ 1.82 $ 5.97 $ 5.82 Assuming dilution $ 2.50 $ 1.81 $ 5.94 $ 5.78 ——————————————— (a) The three months ended September 30, 2020 adjustment is related to the NEP Series A convertible preferred units. During the three months ended September 30, 2019 , approximately $183 million of NEP's Series A convertible preferred units were converted into NEP common units. During the three months ended September 30, 2020 , substantially all of NEP's convertible notes and approximately $71 million of its Series A convertible preferred units were converted into NEP common units. Additionally, in October 2020, approximately $46 million of NEP's Series A convertible preferred units were converted into NEP common units. (b) Calculated using the treasury stock method. Performance share awards are included in diluted weighted-average number of common shares outstanding based upon what would be issued if the end of the reporting period was the end of the term of the award.
Schedule of Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) - The components of AOCI, net of tax, are as follows: Accumulated Other Comprehensive Income (Loss) Net Unrealized Gains (Losses) on Cash Flow Hedges Net Unrealized Gains (Losses) on Available for Sale Securities Defined Benefit Pension and Other Benefits Plans Net Unrealized Gains (Losses) on Foreign Currency Translation Other Comprehensive Income (Loss) Related to Equity Method Investees Total (millions) Nine Months Ended September 30, 2020 Balances, December 31, 2019 $ (27 ) $ 11 $ (114 ) $ (42 ) $ 3 $ (169 ) Other comprehensive loss before reclassifications — (8 ) — (35 ) — (43 ) Amounts reclassified from AOCI 2 (a) (1 ) (b) 3 (c) — — 4 Net other comprehensive income (loss) 2 (9 ) 3 (35 ) — (39 ) Impact of disposal of a business 23 (d) — — (13 ) (d) — 10 Balances, March 31, 2020 (2 ) 2 (111 ) (90 ) 3 (198 ) Other comprehensive income before reclassifications — 14 — 17 — 31 Amounts reclassified from AOCI 3 (a) — (2 ) (c) — — 1 Net other comprehensive income (loss) 3 14 (2 ) 17 — 32 Balances, June 30, 2020 1 16 (113 ) (73 ) 3 (166 ) Other comprehensive income before reclassifications — 3 — 8 — 11 Amounts reclassified from AOCI 2 (a) (1 ) (b) 1 (c) — — 2 Net other comprehensive income 2 2 1 8 — 13 Balances, September 30, 2020 $ 3 $ 18 $ (112 ) $ (65 ) $ 3 $ (153 ) Attributable to noncontrolling interests $ — $ — $ — $ (1 ) $ — $ (1 ) Attributable to NEE $ 3 $ 18 $ (112 ) $ (64 ) $ 3 $ (152 ) ——————————————— (a) Reclassified to interest expense in NEE's condensed consolidated statements of income. See Note 4 - Income Statement Impact of Derivative Instruments. (b) Reclassified to gains on disposal of investments and other property - net in NEE's condensed consolidated statements of income. (c) Reclassified to other net periodic benefit income in NEE's condensed consolidated statements of income. (d) Reclassified to gains on disposal of businesses/assets - net and interest expense in NEE's condensed consolidated statements of income. See Note 4 - Income Statement Impact of Derivative Instruments. See Note 11 - Disposal of Businesses. Accumulated Other Comprehensive Income (Loss) Net Unrealized Gains (Losses) on Cash Flow Hedges Net Unrealized Gains (Losses) on Available for Sale Securities Defined Benefit Pension and Other Benefits Plans Net Unrealized Gains (Losses) on Foreign Currency Translation Other Comprehensive Income (Loss) Related to Equity Method Investees Total (millions) Nine Months Ended September 30, 2019 Balances, December 31, 2018 $ (55 ) $ (7 ) $ (65 ) $ (63 ) $ 2 $ (188 ) Other comprehensive income (loss) before reclassifications — 8 (52 ) 10 (1 ) (35 ) Amounts reclassified from AOCI 10 (a) 2 (b) (1 ) (c) — — 11 Net other comprehensive income (loss) 10 10 (53 ) 10 (1 ) (24 ) Acquisition of Gulf Power (1 ) — — — — (1 ) Balances, March 31, 2019 (46 ) 3 (118 ) (53 ) 1 (213 ) Other comprehensive income (loss) before reclassifications — 7 (1 ) 8 1 15 Amounts reclassified from AOCI 8 (a) (1 ) (b) — — — 7 Net other comprehensive income (loss) 8 6 (1 ) 8 1 22 Balances, June 30, 2019 (38 ) 9 (119 ) (45 ) 2 (191 ) Other comprehensive income before reclassifications — 4 — 1 1 6 Amounts reclassified from AOCI 6 (a) (1 ) (b) (1 ) (c) — — 4 Net other comprehensive income (loss) 6 3 (1 ) 1 1 10 Balances, September 30, 2019 $ (32 ) $ 12 $ (120 ) $ (44 ) $ 3 $ (181 ) ——————————————— (a) Reclassified to interest expense in NEE's condensed consolidated statements of income. See Note 4 - Income Statement Impact of Derivative Instruments. (b) Reclassified to gains on disposal of investments and other property - net in NEE's condensed consolidated statements of income. (c) Reclassified to other net periodic benefit income in NEE's condensed consolidated statements of income.

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Long-term debt issuances and borrowings	Significant long-term debt issuances and borrowings during the nine months ended September 30, 2020 were as follows: Principal Amount Interest Rate Maturity Date (millions) FPL: First mortgage bonds $ 1,100 2.85 % 2025 Senior unsecured notes $ 1,570 Variable (a)(b) 2023 - 2070 NEECH: Debentures $ 3,490 2.25 % - 3.55 % 2025 - 2030 Debentures, related to NEE's equity units $ 4,500 0.509 % - 1.84 % 2025 Japanese yen denominated term loan $ 530 Variable (a)(c) 2023 ——————————————— (a) Variable rate is based on an underlying index plus or minus a specified margin. (b) Includes approximately $320 million that allows individual noteholders to require repayment at specified dates prior to maturity. (c) A cross-currency interest rate swap agreement was entered into with respect to this debt issuance. See Note 4.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2020
Commitments and Contingencies [Abstract]
Schedule of Planned Capital Expenditures	At September 30, 2020 , estimated capital expenditures for the remainder of 2020 through 2024 for which applicable internal approvals (and also, if required, regulatory approvals such as FPSC approvals for FPL and Gulf Power) have been received were as follows: Remainder of 2020 2021 2022 2023 2024 Total (millions) FPL: Generation: (a) New (b) $ 375 $ 860 $ 900 $ 680 $ 540 $ 3,355 Existing 460 1,055 1,140 1,035 1,020 4,710 Transmission and distribution (c) 860 4,020 3,665 3,825 4,290 16,660 Nuclear fuel 85 220 170 120 145 740 General and other 250 740 780 810 730 3,310 Total $ 2,030 $ 6,895 $ 6,655 $ 6,470 $ 6,725 $ 28,775 Gulf Power $ 260 $ 860 $ 695 $ 625 $ 685 $ 3,125 NEER: Wind (d) $ 785 $ 1,605 $ 30 $ 20 $ 25 $ 2,465 Solar (e) 430 1,520 565 375 — 2,890 Battery storage 250 275 60 — — 585 Nuclear, including nuclear fuel 60 230 185 140 190 805 Natural gas pipelines (f) 195 410 — — — 605 Rate-regulated transmission 85 220 30 10 15 360 Other 180 160 70 70 75 555 Total $ 1,985 $ 4,420 $ 940 $ 615 $ 305 $ 8,265 ——————————————— (a) Includes AFUDC of approximately $10 million , $60 million , $50 million , $25 million and $20 million for the remainder of 2020 through 2024, respectively. (b) Includes land, generation structures, transmission interconnection and integration and licensing. (c) Includes AFUDC of approximately $10 million , $50 million , $50 million , $40 million and $55 million for the remainder of 2020 through 2024, respectively. (d) Consists of capital expenditures for new wind projects, repowering of existing wind projects and related transmission totaling approximately 4,784 MW. (e) Includes capital expenditures for new solar projects and related transmission totaling approximately 2,977 MW. (f) Construction of natural gas pipelines are subject to certain conditions, including applicable regulatory approvals and in certain cases the resolution of legal challenges.
Required capacity and/or minimum payments under contracts	The required capacity and/or minimum payments under contracts, including those discussed above, at September 30, 2020 were estimated as follows: Remainder of 2020 2021 2022 2023 2024 Thereafter (millions) FPL (a) $ 270 $ 1,010 $ 965 $ 945 $ 940 $ 10,250 NEER (b)(c)(d) $ 1,420 $ 2,520 $ 415 $ 210 $ 210 $ 1,440 ——————————————— (a) Includes approximately $105 million , $415 million , $415 million , $410 million , $410 million and $6,765 million for the remainder of 2020 through 2024 and thereafter, respectively, of firm commitments related to the natural gas transportation agreements with Sabal Trail and Florida Southeast Connection. The charges associated with these agreements are recoverable through the fuel clause. For the three and nine months ended September 30, 2020 , the charges associated with these agreements totaled approximately $104 million and $280 million , respectively, of which $27 million and $81 million , respectively, were eliminated in consolidation at NEE. For the three and nine months ended September 30, 2019 , the charges associated with these agreements totaled approximately $80 million and $236 million , respectively, of which $28 million and $81 million , respectively, were eliminated in consolidation at NEE. (b) Includes approximately $20 million , $70 million , $70 million , $70 million and $1,160 million for 2021 through 2024 and thereafter, respectively, of firm commitments related to a natural gas transportation agreement with a joint venture, in which NEER has a 31% equity investment, that is constructing a natural gas pipeline. These firm commitments are subject to the completion of construction of the pipeline, which is expected in 2021. (c) Includes approximately $85 million of commitments to invest in technology investments through 2029. (d) Includes approximately $205 million , $355 million , $20 million , $20 million , $10 million and $15 million for the remainder of 2020 through 2024 and thereafter, respectively, of joint obligations of NEECH and NEER.

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
Segment information	Three Months Ended September 30, 2020 2019 FPL Gulf Power NEER (a) Corporate and Other NEE Consoli- dated FPL Gulf Power NEER (a) Corporate and Other NEE Consoli- dated (millions) Operating revenues $ 3,455 $ 404 $ 953 $ (27 ) $ 4,785 $ 3,491 $ 440 $ 1,675 $ (34 ) $ 5,572 Operating expenses - net $ 2,395 $ 289 $ 1,026 $ 67 $ 3,777 $ 2,518 $ 332 $ 1,117 $ 12 $ 3,979 Net income (loss) attributable to NEE $ 757 $ 91 $ 376 (b) $ 5 $ 1,229 $ 683 $ 76 $ 381 (b) $ (261 ) $ 879 Nine Months Ended September 30, 2020 2019 FPL Gulf Power NEER (a) Corporate and Other NEE FPL Gulf Power NEER (a) Corporate NEE Consoli- dated (millions) Operating revenues $ 8,820 $ 1,065 $ 3,802 $ (85 ) $ 13,602 $ 9,267 $ 1,134 $ 4,301 $ (86 ) $ 14,616 Operating expenses - net $ 5,779 $ 817 $ 2,706 $ 124 $ 9,426 $ 6,582 $ 901 $ 2,579 $ 78 $ 10,140 Net income (loss) attributable to NEE $ 2,148 $ 185 $ 1,175 (b) $ (584 ) $ 2,924 $ 1,934 $ 158 $ 1,374 (b) $ (672 ) $ 2,794 ——————————————— (a) Interest expense allocated from NEECH is based on a deemed capital structure of 70% debt and differential membership interests sold by NextEra Energy Resources' subsidiaries. Residual NEECH corporate interest expense is included in Corporate and Other. (b) See Note 6 for a discussion of NEER's tax benefits related to PTCs. September 30, 2020 December 31, 2019 FPL Gulf Power NEER Corporate and Other NEE Consoli- dated FPL Gulf Power NEER Corporate and Other NEE Consoli- dated (millions) Total assets $ 60,503 $ 6,679 $ 54,961 $ 4,239 $ 126,382 $ 57,188 $ 5,855 $ 51,516 $ 3,132 $ 117,691

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 4,900	$ 4,900	$ 12,900	$ 13,200
FPL [Member]
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,400	$ 3,500	8,800	$ 9,200
Unbilled revenues	468		468		$ 389
NextEra Energy Resources [Member]
Disaggregation of Revenue [Line Items]
Revenue, remaining performance obligation	$ 870		$ 870
Revenue Benchmark [Member] | FPL [Member]
Disaggregation of Revenue [Line Items]
Concentration risk, percentage			90.00%

NEP (Details)

NEP (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Schedule of Investments [Line Items]
Investment in equity method investees	$ 7,144		$ 7,144		$ 7,453
Guarantor obligations, current carrying value	647		647
Debt instrument, fair value disclosure	31		31
Cash Sweep And Credit Support Agreement [Member] | NEER [Member]
Schedule of Investments [Line Items]
Fee income	31	$ 27	88	$ 75
Due from related parties, current	61		61		53
Due from related parties, noncurrent	33		33		33
Cash Sweep And Credit Support Agreement [Member] | NEER [Member] | NextEra Energy Partners [Member]
Schedule of Investments [Line Items]
Due to related parties	$ 82		$ 82		$ 12

Employee Retirement Benefits (D

Employee Retirement Benefits (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Pension Benefits [Member]
Net periodic benefit (income) cost [Abstract]
Service cost	$ 22	$ 20	$ 64	$ 60
Interest cost	23	28	69	86
Expected return on plan assets	(80)	(78)	(241)	(235)
Amortization of prior service benefit	(1)	0	(1)	(1)
Amortization of actuarial loss	4	0	13	0
Special termination benefits	4	1	13	17
Net periodic benefit (income) cost	(28)	(29)	(83)	(73)
Postretirement Benefits [Member]
Net periodic benefit (income) cost [Abstract]
Service cost	0	0	1	1
Interest cost	3	3	6	7
Expected return on plan assets	0	0	0	0
Amortization of prior service benefit	(4)	(4)	(12)	(12)
Amortization of actuarial loss	0	0	2	0
Special termination benefits	0	0	0	0
Net periodic benefit (income) cost	(1)	(1)	(3)	(4)
FPL [Member] | Pension Benefits [Member]
Net periodic benefit (income) cost [Abstract]
Net periodic benefit (income) cost	(19)	(18)	(58)	(53)
FPL [Member] | Postretirement Benefits [Member]
Net periodic benefit (income) cost [Abstract]
Net periodic benefit (income) cost	$ (1)	$ (1)	$ (2)	$ (3)

Derivative Instruments (Details

Derivative Instruments (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Derivative [Line Items]
Reclassification from AOCI, before Tax	$ 23	$ 8
Reclassification from AOCI, Net of Tax	3	$ 6
Total loss to be reclassified during next 12 months	8
Margin cash collateral received from counterparties that was not offset against derivative assets	10		$ 10
Margin cash collateral provided to counterparties that was not offset against derivative assets or liabilities	$ 559		$ 360

Derivative Instruments (Balance

Derivative Instruments (Balance Sheet Disclosure) (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative assets	$ 2,063	$ 2,386
Derivative Asset, Current	441	762
Derivative Asset, Noncurrent	1,622	1,624
Derivative liability	1,890	1,340
Derivative Liability, Current	310	344
Derivative Liability, Noncurrent	1,580	863
Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liabilities Associated with Assets Held-for-Sale		133
Current derivative assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Amount Offset Against Collateral		2
Non Current Derivative Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Amount Offset Against Collateral	158	139
Current derivative liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Collateral, Right to Reclaim Cash, Offset	14	66
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset	4,483	5,102
Derivative liability, fair value, gross liability	4,166	3,981
Derivative assets	2,063	2,386
Derivative liability	1,890	1,340
Commodity Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset	4,435	5,050
Derivative liability, fair value, gross liability	2,795	3,201
Derivative assets	2,039	2,350
Derivative liability	543	576
Interest Rate Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset	33	26
Derivative liability, fair value, gross liability	1,324	742
Derivative assets	5	9
Derivative liability	1,296	725
Foreign Exchange Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset	15	26
Derivative liability, fair value, gross liability	47	38
Derivative assets	19	27
Derivative liability	51	39
FPL [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	2	3
Derivative liability	11	13
FPL [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Current	2	3
FPL [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Current	10	12
FPL [Member] | Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Noncurrent	1	1
FPL [Member] | Commodity Contract [Member] | Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset	4	4
Derivative liability, fair value, gross liability	13	14
Derivative assets	2	3
Derivative liability	$ 11	$ 13

Derivative Instruments (Income

Derivative Instruments (Income Statement Disclosure) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Gains on disposal of businesses/assets	$ 11	$ 2	$ (279)	$ (378)
Not Designated as Hedging Instrument [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(166)	(6)	(528)	(290)
Not Designated as Hedging Instrument [Member] | Commodity Contract [Member] | Gains (losses) included in operating revenues [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(327)	366	245	641
Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Gain Loss Included In Interest Expense Member
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	34	(13)	(30)	(21)
Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Gain Loss Included In Interest Expense Member
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	131	(352)	(710)	(883)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member] | Gain Loss Included In Interest Expense Member
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Interest Expense	(1)	(1)	(3)	(3)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Gain Loss Included In Interest Expense Member
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Interest Expense	(3)	(6)	(30)	(24)
Gains on disposal of businesses/assets			(23)
FPL [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]
Gains (losses) on commodity contracts, recorded as regulatory assets and or liabilities on the balance sheet due to regulatory treatment	$ (1)	$ 4	$ (3)	$ 8

Derivative Instruments (Net Not

Derivative Instruments (Net Notional Volumes and Additional Disclosures) (Details) bbl in Millions, MWh in Millions, MMBTU in Millions, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2020USD ($)MWhMMBTUbbl	Dec. 31, 2019USD ($)MWhMMBTUbbl
Interest Rate Swap [Member]
Derivative [Line Items]
Notional amount | $	$ 10,500	$ 8,900
Currency Swap [Member]
Derivative [Line Items]
Notional amount | $	$ 957	$ 1,000
Short [Member] | Commodity contract - Power [Member]
Derivative [Line Items]
Non-monetary net notional amount (in MWh) | MWh	76	81
Short [Member] | Commodity contract - Natural gas [Member]
Derivative [Line Items]
Non-monetary net notional amount (in MMBtu) | MMBTU	352	1,723
Short [Member] | Commodity contract - Oil [Member]
Derivative [Line Items]
Non-monetary net notional amount (in barrels) | bbl	(14)	(13)
FPL [Member] | Short [Member] | Commodity contract - Oil [Member]
Derivative [Line Items]
Non-monetary net notional amount (in barrels) | bbl	0	0
FPL [Member] | Long [Member] | Commodity contract - Power [Member]
Derivative [Line Items]
Non-monetary net notional amount (in MWh) | MWh	0	1
FPL [Member] | Long [Member] | Commodity contract - Natural gas [Member]
Derivative [Line Items]
Non-monetary net notional amount (in MMBtu) | MMBTU	143	161

Derivative Instruments (Credit-

Derivative Instruments (Credit-Risk-Related Contingent Features) (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Fair value of derivative instruments with credit-risk-related contingent features that were in a liability position	$ 2,100	$ 1,700
Total required posted collateral should FPL's and Capital Holdings' credit ratings fall to BBB/Baa2	95	215
Total required posted collateral should FPL's and Capital Holdings' credit ratings fall below investment grade	1,100	1,200
Additional collateral requirements if non-ratings based contract provisions are triggered	1,100	590
Collateral already posted, aggregate fair value	74	2
Letters of credit posted through the normal course of business that could be applied toward the collateral requirements related to derivative instruments with credit-risk-related contingent features		88
FPL [Member]
Derivative [Line Items]
Fair value of derivative instruments with credit-risk-related contingent features that were in a liability position	12	12
Total required posted collateral should FPL's and Capital Holdings' credit ratings fall to BBB/Baa2	0	0
Total required posted collateral should FPL's and Capital Holdings' credit ratings fall below investment grade	70	35
Additional collateral requirements if non-ratings based contract provisions are triggered	95	75
Collateral already posted, aggregate fair value	$ 0	0
Letters of credit posted through the normal course of business that could be applied toward the collateral requirements related to derivative instruments with credit-risk-related contingent features		$ 0

Fair Value Measurements (Assets

Fair Value Measurements (Assets and Liabilities Measured on a Recurring Basis) (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Restricted cash	$ 476	$ 508
Derivatives:
Derivative assets	2,063	2,386
Derivatives:
Derivative liability	1,890	1,340
Fair value measurements made on a recurring basis [Member]
Cash equivalents:
Equity securities	1,804	363
Special use funds:
Equity securities	4,181	3,963
U.S. Government and municipal bonds	679	717
Corporate debt securities	851	748
Mortgage-backed securities	440	517
Other debt securities	112	117
Other investments:
Equity Securities	61	46
Debt securities	202	151
Fair value measurements made on a recurring basis [Member] | Commodity Contract [Member]
Derivatives:
Derivative asset, netting	(2,396)	(2,700)
Derivative assets	2,039	2,350
Derivatives:
Derivative liability, netting	(2,252)	(2,625)
Derivative liability	543	576
Fair value measurements made on a recurring basis [Member] | Interest Rate Contract [Member]
Derivatives:
Derivative asset, netting	(28)	(17)
Derivative assets	5	9
Derivatives:
Derivative liability, netting	(28)	(17)
Derivative liability	1,296	725
Fair value measurements made on a recurring basis [Member] | Foreign Currency Swap [Member]
Derivatives:
Derivative asset, netting	4	1
Derivative assets	19	27
Derivatives:
Derivative liability, netting	4	1
Derivative liability	51	39
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member] | Fair value measurements made on a recurring basis [Member]
Cash equivalents:
Equity securities	1,804	363
Special use funds:
Equity securities	1,994	1,875
U.S. Government and municipal bonds	522	567
Corporate debt securities	1	0
Mortgage-backed securities	0	0
Other debt securities	0	0
Other investments:
Equity Securities	61	34
Debt securities	93	82
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member] | Fair value measurements made on a recurring basis [Member] | Commodity Contract [Member]
Derivatives:
Derivative Asset, Gross Asset	1,029	1,229
Derivatives:
Derivative Liability, Gross Liability	1,027	1,365
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member] | Fair value measurements made on a recurring basis [Member] | Interest Rate Contract [Member]
Derivatives:
Derivative Asset, Gross Asset	0	0
Derivatives:
Derivative Liability, Gross Liability	0	0
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member] | Fair value measurements made on a recurring basis [Member] | Foreign Currency Swap [Member]
Derivatives:
Derivative Asset, Gross Asset	0	0
Derivatives:
Derivative Liability, Gross Liability	0	0
Significant Other Observable Inputs (Level 2) [Member] | Fair value measurements made on a recurring basis [Member]
Cash equivalents:
Equity securities	0	0
Special use funds:
Equity securities	2,187	2,088
U.S. Government and municipal bonds	157	150
Corporate debt securities	850	748
Mortgage-backed securities	440	517
Other debt securities	112	117
Other investments:
Equity Securities	0	12
Debt securities	109	69
Significant Other Observable Inputs (Level 2) [Member] | Fair value measurements made on a recurring basis [Member] | Commodity Contract [Member]
Derivatives:
Derivative Asset, Gross Asset	1,796	2,082
Derivatives:
Derivative Liability, Gross Liability	1,328	1,446
Significant Other Observable Inputs (Level 2) [Member] | Fair value measurements made on a recurring basis [Member] | Interest Rate Contract [Member]
Derivatives:
Derivative Asset, Gross Asset	33	24
Derivatives:
Derivative Liability, Gross Liability	1,304	598
Significant Other Observable Inputs (Level 2) [Member] | Fair value measurements made on a recurring basis [Member] | Foreign Currency Swap [Member]
Derivatives:
Derivative Asset, Gross Asset	15	26
Derivatives:
Derivative Liability, Gross Liability	47	38
Significant Unobservable Inputs (Level 3) [Member] | Fair value measurements made on a recurring basis [Member]
Cash equivalents:
Equity securities	0	0
Special use funds:
Equity securities	0	0
U.S. Government and municipal bonds	0	0
Corporate debt securities	0	0
Mortgage-backed securities	0	0
Other debt securities	0	0
Other investments:
Equity Securities	0	0
Debt securities	0	0
Significant Unobservable Inputs (Level 3) [Member] | Fair value measurements made on a recurring basis [Member] | Commodity Contract [Member]
Derivatives:
Derivative Asset, Gross Asset	1,610	1,739
Derivatives:
Derivative Liability, Gross Liability	440	390
Significant Unobservable Inputs (Level 3) [Member] | Fair value measurements made on a recurring basis [Member] | Interest Rate Contract [Member]
Derivatives:
Derivative Asset, Gross Asset	0	2
Derivatives:
Derivative Liability, Gross Liability	20	144
Significant Unobservable Inputs (Level 3) [Member] | Fair value measurements made on a recurring basis [Member] | Foreign Currency Swap [Member]
Derivatives:
Derivative Asset, Gross Asset	0	0
Derivatives:
Derivative Liability, Gross Liability	0	0
Other Current Assets [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member] | Fair value measurements made on a recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Restricted cash	231	60
Other Noncurrent Assets [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member] | Fair value measurements made on a recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Restricted cash	82	64
FPL [Member]
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Restricted cash	114	118
Derivatives:
Derivative assets	2	3
Derivatives:
Derivative liability	11	13
FPL [Member] | Fair value measurements made on a recurring basis [Member]
Cash equivalents:
Equity securities	191	156
Special use funds:
Equity securities	2,663	2,491
U.S. Government and municipal bonds	508	535
Corporate debt securities	600	533
Mortgage-backed securities	348	395
Other debt securities	107	111
FPL [Member] | Fair value measurements made on a recurring basis [Member] | Commodity Contract [Member]
Derivatives:
Derivative asset, netting	(2)	(1)
Derivative assets	2	3
Derivatives:
Derivative liability, netting	(2)	(1)
Derivative liability	11	13
FPL [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member] | Fair value measurements made on a recurring basis [Member]
Cash equivalents:
Equity securities	191	156
Special use funds:
Equity securities	680	596
U.S. Government and municipal bonds	405	429
Corporate debt securities	0	0
Mortgage-backed securities	0	0
Other debt securities	0	0
FPL [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member] | Fair value measurements made on a recurring basis [Member] | Commodity Contract [Member]
Derivatives:
Derivative Asset, Gross Asset	0	0
Derivatives:
Derivative Liability, Gross Liability	0	0
FPL [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair value measurements made on a recurring basis [Member]
Cash equivalents:
Equity securities	0	0
Special use funds:
Equity securities	1,983	1,895
U.S. Government and municipal bonds	103	106
Corporate debt securities	600	533
Mortgage-backed securities	348	395
Other debt securities	107	111
FPL [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fair value measurements made on a recurring basis [Member] | Commodity Contract [Member]
Derivatives:
Derivative Asset, Gross Asset	2	3
Derivatives:
Derivative Liability, Gross Liability	5	5
FPL [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair value measurements made on a recurring basis [Member]
Cash equivalents:
Equity securities	0	0
Special use funds:
Equity securities	0	0
U.S. Government and municipal bonds	0	0
Corporate debt securities	0	0
Mortgage-backed securities	0	0
Other debt securities	0	0
FPL [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fair value measurements made on a recurring basis [Member] | Commodity Contract [Member]
Derivatives:
Derivative Asset, Gross Asset	2	1
Derivatives:
Derivative Liability, Gross Liability	8	9
FPL [Member] | Other Current Assets [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member] | Fair value measurements made on a recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Restricted cash	73	54
FPL [Member] | Other Noncurrent Assets [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member] | Fair value measurements made on a recurring basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Restricted cash	$ 41	$ 64

Fair Value Measurements (Signif

Fair Value Measurements (Significant Unobservable Inputs Used in Valuation of Contracts) (Details) - Fair Value, Inputs, Level 3 [Member]	9 Months Ended
	Sep. 30, 2020USD ($)
Derivative Financial Instruments, Liabilities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Fair Value Disclosure	$ 440,000,000
Derivative Financial Instruments, Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure	1,610,000,000
Forward Contracts - Power [Member] | Derivative Financial Instruments, Liabilities [Member] | Forward Contracts - Power [Member] | Discounted Cash Flow Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Fair Value Disclosure	106,000,000
Forward Contracts - Power [Member] | Derivative Financial Instruments, Assets [Member] | Forward Contracts - Power [Member] | Discounted Cash Flow Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure	754,000,000
Forward contracts - Gas [Member] | Derivative Financial Instruments, Liabilities [Member] | Forward contracts - Gas [Member] | Discounted Cash Flow Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Fair Value Disclosure	40,000,000
Forward contracts - Gas [Member] | Derivative Financial Instruments, Assets [Member] | Forward contracts - Gas [Member] | Discounted Cash Flow Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure	270,000,000
Forward contracts - Congestion [Member] | Derivative Financial Instruments, Liabilities [Member] | Forward contracts - Congestion [Member] | Discounted Cash Flow Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Fair Value Disclosure	5,000,000
Forward contracts - Congestion [Member] | Derivative Financial Instruments, Assets [Member] | Forward contracts - Congestion [Member] | Discounted Cash Flow Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure	25,000,000
Option Contracts, Power [Member] | Derivative Financial Instruments, Liabilities [Member] | Option Contracts, Power [Member] | Option Models [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Fair Value Disclosure	17,000,000
Option Contracts, Power [Member] | Derivative Financial Instruments, Assets [Member] | Option Contracts, Power [Member] | Option Models [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure	35,000,000
Option Contracts, Gas [Member] | Derivative Financial Instruments, Liabilities [Member] | Option Contracts, Primarily Gas [Member] | Option Models [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Fair Value Disclosure	203,000,000
Option Contracts, Gas [Member] | Derivative Financial Instruments, Assets [Member] | Option Contracts, Primarily Gas [Member] | Option Models [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure	198,000,000
Full Requirements and Unit Contingent Contracts [Member] | Derivative Financial Instruments, Liabilities [Member] | Full Requirements and Unit Contingent Contracts [Member] | Discounted Cash Flow Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Fair Value Disclosure	56,000,000
Full Requirements and Unit Contingent Contracts [Member] | Derivative Financial Instruments, Assets [Member] | Full Requirements and Unit Contingent Contracts [Member] | Discounted Cash Flow Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure	301,000,000
Forward contracts - Other [Member] [Member] | Derivative Financial Instruments, Liabilities [Member] | Forward contracts - Other [Member] [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Fair Value Disclosure	13,000,000
Forward contracts - Other [Member] [Member] | Derivative Financial Instruments, Assets [Member] | Forward contracts - Other [Member] [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure	27,000,000
Forward Price [Member] | Forward Contracts - Power [Member] | Forward Contracts - Power [Member] | Discounted Cash Flow Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	2
Forward Price [Member] | Forward Contracts - Power [Member] | Forward Contracts - Power [Member] | Discounted Cash Flow Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	157
Forward Price [Member] | Forward Contracts - Power [Member] | Forward Contracts - Power [Member] | Discounted Cash Flow Member] | Weighted Average [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	28
Forward Price [Member] | Forward contracts - Gas [Member] | Forward contracts - Gas [Member] | Discounted Cash Flow Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	0
Forward Price [Member] | Forward contracts - Gas [Member] | Forward contracts - Gas [Member] | Discounted Cash Flow Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	8
Forward Price [Member] | Forward contracts - Gas [Member] | Forward contracts - Gas [Member] | Discounted Cash Flow Member] | Weighted Average [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	3
Forward Price [Member] | Forward contracts - Congestion [Member] | Forward contracts - Congestion [Member] | Discounted Cash Flow Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	(5)
Forward Price [Member] | Forward contracts - Congestion [Member] | Forward contracts - Congestion [Member] | Discounted Cash Flow Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	33
Forward Price [Member] | Forward contracts - Congestion [Member] | Forward contracts - Congestion [Member] | Discounted Cash Flow Member] | Weighted Average [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	0
Forward Price [Member] | Full Requirements and Unit Contingent Contracts [Member] | Full Requirements and Unit Contingent Contracts [Member] | Discounted Cash Flow Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	6
Forward Price [Member] | Full Requirements and Unit Contingent Contracts [Member] | Full Requirements and Unit Contingent Contracts [Member] | Discounted Cash Flow Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	382
Forward Price [Member] | Full Requirements and Unit Contingent Contracts [Member] | Full Requirements and Unit Contingent Contracts [Member] | Discounted Cash Flow Member] | Weighted Average [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Forward price (in dollars per energy unit)	$ 48
Implied Correlations [Member] | Option Contracts, Power [Member] | Option Contracts, Power [Member] | Option Models [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	40.00%
Implied Correlations [Member] | Option Contracts, Power [Member] | Option Contracts, Power [Member] | Option Models [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	85.00%
Implied Correlations [Member] | Option Contracts, Power [Member] | Option Contracts, Power [Member] | Option Models [Member] | Weighted Average [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	55.00%
Implied Correlations [Member] | Option Contracts, Gas [Member] | Option Contracts, Primarily Gas [Member] | Option Models [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	40.00%
Implied Correlations [Member] | Option Contracts, Gas [Member] | Option Contracts, Primarily Gas [Member] | Option Models [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	100.00%
Implied Correlations [Member] | Option Contracts, Gas [Member] | Option Contracts, Primarily Gas [Member] | Option Models [Member] | Weighted Average [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	57.00%
Implied Volatilities [Member] | Option Contracts, Power [Member] | Option Contracts, Power [Member] | Option Models [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	5.00%
Implied Volatilities [Member] | Option Contracts, Power [Member] | Option Contracts, Power [Member] | Option Models [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	152.00%
Implied Volatilities [Member] | Option Contracts, Power [Member] | Option Contracts, Power [Member] | Option Models [Member] | Weighted Average [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	48.00%
Implied Volatilities [Member] | Option Contracts, Gas [Member] | Option Contracts, Primarily Gas [Member] | Option Models [Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	16.00%
Implied Volatilities [Member] | Option Contracts, Gas [Member] | Option Contracts, Primarily Gas [Member] | Option Models [Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	270.00%
Implied Volatilities [Member] | Option Contracts, Gas [Member] | Option Contracts, Primarily Gas [Member] | Option Models [Member] | Weighted Average [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	42.00%
Customer Migration Rate [Member] | Full Requirements and Unit Contingent Contracts [Member] | Full Requirements and Unit Contingent Contracts [Member] | Discounted Cash Flow Member] | Minimum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	0.00%
Customer Migration Rate [Member] | Full Requirements and Unit Contingent Contracts [Member] | Full Requirements and Unit Contingent Contracts [Member] | Discounted Cash Flow Member] | Maximum [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	122.00%
Customer Migration Rate [Member] | Full Requirements and Unit Contingent Contracts [Member] | Full Requirements and Unit Contingent Contracts [Member] | Discounted Cash Flow Member] | Weighted Average [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value Inputs, Expected Rates	2.00%

Fair Value Measurements (Reconc

Fair Value Measurements (Reconciliation of Changes in the Fair Value) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Realized and unrealized gains (losses): [Abstract]
Fair value based on significant unobservable inputs, ending balance	$ 1,150	$ 1,051	$ 1,150	$ 1,051
FPL [Member]
Realized and unrealized gains (losses): [Abstract]
Fair value based on significant unobservable inputs, ending balance	(6)	(10)	(6)	(10)
Derivative Financial Instruments, Net [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair value based on significant unobservable inputs, beginning balance	1,305	1,231	1,207	647
Realized and unrealized gains (losses): [Abstract]
Included in earnings	(55)	(29)	294	663
Included in other comprehensive income	0	6	1	7
Included in regulatory assets and liabilities	(1)	2	(3)	1
Purchases	37	27	157	94
Sales			114	0
Settlements	(108)	(146)	(490)	(265)
Issuances	(26)	(13)	(98)	(64)
Transfers out	(2)	(27)	(32)	(32)
Fair value based on significant unobservable inputs, ending balance	1,150	1,051	1,150	1,051
Gains (losses) included in earnings attributable to the change in unrealized gains (losses) relating to derivatives held at the reporting date	(46)	53	79	476
Realized and unrealized gains (losses) reflected in operating revenues	(55)	(23)	314	680
Unrealized gains (losses) reflected in operating revenues related to derivatives still held at the reporting date	(46)	61	90	493
Derivative Financial Instruments, Net [Member] | FPL [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair value based on significant unobservable inputs, beginning balance	(6)	(13)	(8)	(36)
Realized and unrealized gains (losses): [Abstract]
Included in earnings	0	0	0	0
Included in other comprehensive income	0	0	0	0
Included in regulatory assets and liabilities	(1)	2	(3)	1
Purchases	0	0	0	0
Sales			0	0
Settlements	1	1	5	23
Issuances	0	0	0	0
Transfers out	0	0	0	2
Fair value based on significant unobservable inputs, ending balance	(6)	(10)	(6)	(10)
Gains (losses) included in earnings attributable to the change in unrealized gains (losses) relating to derivatives held at the reporting date	$ 0	$ 0	$ 0	$ 0

Fair Value Measurements (Fair V

Fair Value Measurements (Fair Value of Instruments Recorded at Other Than Fair Value and Special Use Funds) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Special use funds: nuclear decommissioning fund assets	$ 7,099	$ 6,880
Special Use Funds Storm Fund Assets	76	74
Available for sale debt securities amortized cost	$ 1,984	2,030
Special Use Funds Nuclear Decommissioning Funds Weighted Average Maturity	9 years
Fair Value Assumptions, Expected Term	1 year
Carrying Amount [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Special Use Funds Fair Value Disclosure	$ 912	892
Other Investments Financial Instruments Primarily Notes Receivable Fair Value Disclosure	25	30
Long Term Debt Including Current Maturities Fair Value And Carrying Value	47,838	39,667
Estimated Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Special Use Funds Fair Value Disclosure	912	891
Other Investments Financial Instruments Primarily Notes Receivable Fair Value Disclosure	25	30
Long Term Debt Including Current Maturities Fair Value And Carrying Value	52,527	42,928
FPL [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Special use funds: nuclear decommissioning fund assets	4,869	4,697
Special Use Funds Storm Fund Assets	76	74
Available for sale debt securities amortized cost	$ 1,492	1,523
Special Use Funds Nuclear Decommissioning Funds Weighted Average Maturity	9 years
Fair Value Assumptions, Expected Term	1 year
FPL [Member] | Carrying Amount [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Special Use Funds Fair Value Disclosure	$ 719	706
Long Term Debt Including Current Maturities Fair Value And Carrying Value	15,809	14,161
FPL [Member] | Estimated Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Special Use Funds Fair Value Disclosure	718	705
Long Term Debt Including Current Maturities Fair Value And Carrying Value	$ 19,415	16,448
Other Current Liabilities [Member] | Carrying Amount [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long Term Debt Including Current Maturities Fair Value And Carrying Value		$ 463

Fair Value Measurements (Unreal

Fair Value Measurements (Unrealized Gains (Losses) Recognized On Equity Securities Still Held at The Reporting Date) (Details) - Equity Securities [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized gains (losses)	$ 223	$ 21	$ 65	$ 500
FPL [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unrealized gains (losses)	$ 129	$ 18	$ 50	$ 327

Fair Value Measurements (Gains

Fair Value Measurements (Gains and Losses on Available-for-sale Debt Securities) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Debt Securities [Member]
Marketable Securities, Available-for-sale [Line Items]
Realized Gains	$ 30	$ 21	$ 86	$ 47
Realized Losses	17	14	50	34
Proceeds from sale or maturity of securities	555	612	2,046	2,087
Available for sale securities: Special Use Funds - Debt Securities [Member]
Marketable Securities, Available-for-sale [Line Items]
Unrealized gains	120		120		$ 75
Unrealized losses	23		23		7
Fair value	314		314		314
FPL [Member] | Debt Securities [Member]
Marketable Securities, Available-for-sale [Line Items]
Realized Gains	21	15	66	30
Realized Losses	10	11	38	20
Proceeds from sale or maturity of securities	475	$ 489	1,747	$ 1,717
FPL [Member] | Available for sale securities: Special Use Funds - Debt Securities [Member]
Marketable Securities, Available-for-sale [Line Items]
Unrealized gains	92		92		58
Unrealized losses	21		21		7
Fair value	$ 239		$ 239		$ 240

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Effective income tax rate	10.30%	6.80%	3.00%	9.10%
Production tax credit (PTC), roll off period			10 years

Income Taxes - Reconciliation B

Income Taxes - Reconciliation Between the Effective Income Tax Rates and the Applicable Statutory Rate (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Effective Income Tax Rate Reconciliation [Line Items]
Statutory federal income tax rate	21.00%	21.00%	21.00%	21.00%
Increases (reductions) resulting from:
State income taxes - net of federal income tax benefit(a)	1.90%	4.30%	1.30%	3.40%
Taxes attributable to noncontrolling interests	1.80%	2.00%	2.90%	1.90%
PTCs and ITCs - NEER	(7.40%)	(11.50%)	(8.70%)	(7.90%)
Amortization of deferred regulatory credit	(4.40%)	(5.60%)	(5.40%)	(7.00%)
Foreign operations(c)	0.00%	0.00%	(2.20%)	0.00%
Other - net	(2.60%)	(3.40%)	(5.90%)	(2.30%)
Effective income tax rate	10.30%	6.80%	3.00%	9.10%
FPL [Member]
Effective Income Tax Rate Reconciliation [Line Items]
Statutory federal income tax rate	21.00%	21.00%	21.00%	21.00%
Increases (reductions) resulting from:
State income taxes - net of federal income tax benefit(a)	3.70%	3.90%	4.00%	3.30%
Taxes attributable to noncontrolling interests	0.00%	0.00%	0.00%	0.00%
PTCs and ITCs - NEER	0.00%	0.00%	0.00%	0.00%
Amortization of deferred regulatory credit	(5.60%)	(5.20%)	(5.20%)	(8.00%)
Foreign operations(c)	0.00%	0.00%	0.00%	0.00%
Other - net	(0.90%)	(1.60%)	(1.30%)	(0.70%)
Effective income tax rate	18.20%	18.10%	18.50%	15.60%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amortization, Amount				$ 83
Amortization Of Excess Deferred Income Taxes				870
State [Member]
Increases (reductions) resulting from:
Deferred state tax credits	$ 48			$ 48

Acquisitions (Details)

Acquisitions (Details) $ in Millions	Sep. 29, 2020USD ($)utlitystatemi	Jul. 16, 2019USD ($)mi	Jan. 01, 2019USD ($)countycustomermiMW	Dec. 31, 2018USD ($)	Sep. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Business Acquisition [Line Items]
Goodwill					$ 4,214	$ 4,204
NextEra Energy Capital Holdings, Inc. (Consolidated) [Member] | Term Loan Agreements [Member]
Business Acquisition [Line Items]
Borrowings				$ 4,500
Trans Bay Cable, LLC [Member]
Business Acquisition [Line Items]
Number of miles of power lines | mi		53
Gulf Power [Member]
Business Acquisition [Line Items]
Cash purchase price			$ 4,440
Business combination, recognized identifiable assets acquired and liabilities assumed, noncurrent liabilities, long-term debt			1,300
Assets assumed			5,200
Property, plant and equipment			4,000
Regulatory assets			494
Assumed liabilities			3,400
Regulatory liabilities			635
Deferred income taxes			562
Goodwill			$ 2,700
Gulf Power [Member] | Gulf Power [Member]
Business Acquisition [Line Items]
Number of customers acquired (more than) | customer			470,000
Number of counties in which entity operates | county			8
Number of miles of power lines | mi			9,500
Electric generating facility capacity (in megawatts) | MW			2,300
Trans Bay Cable, LLC [Member]
Business Acquisition [Line Items]
Assets assumed		$ 703
Assumed liabilities		643
Goodwill		610
Goodwill, Expected Tax Deductible Amount					$ 572
Trans Bay Cable, LLC [Member] | NextEra Energy Transmission, LLC Subsidiary [Member]
Business Acquisition [Line Items]
Cash purchase price		670
Business combination, recognized identifiable assets acquired and liabilities assumed, noncurrent liabilities, long-term debt		$ 422
GridLiance [Member] | NextEra Energy Transmission, LLC Subsidiary [Member]
Business Acquisition [Line Items]
Number of miles of power lines | mi	700
Consideration transferred	$ 660
Debt assumed	$ 160
Number of FERC-r transmission utilities | utlity	3
Number of states in which entity operates | state	6
GridLiance [Member] | NextEra Energy Transmission, LLC Subsidiary [Member] | Midwest And Nevada [Member]
Business Acquisition [Line Items]
Number of states in which entity operates | state	5

Variable Interest Entities (V_2

Variable Interest Entities (VIEs) (Details) $ in Millions	1 Months Ended	9 Months Ended
	Sep. 30, 2019MW	Sep. 30, 2020USD ($)variable_interest_entityentitymiMW	Dec. 31, 2019USD ($)variable_interest_entity
Variable Interest Entity [Line Items]
Carrying amount of assets, consolidated variable interest entity		$ 126,382	$ 117,691
Investment in equity method investees		7,144	7,453
Other variable interest entities [Member]
Variable Interest Entity [Line Items]
Investments in special purpose entities		3,345	3,247
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Carrying amount of assets, consolidated variable interest entity		345	173
Carrying amount of liabilities, consolidated variable interest entity		$ 69	29
Electricity Transmission Line (in miles) | mi		280
Percentage of profits and losses		50.00%
FPL [Member]
Variable Interest Entity [Line Items]
Carrying amount of assets, consolidated variable interest entity		$ 60,503	57,188
FPL [Member] | Other variable interest entities [Member]
Variable Interest Entity [Line Items]
Investments in special purpose entities		$ 2,822	2,717
NextEra Energy Resources [Member]
Variable Interest Entity [Line Items]
Total number of consolidated variable interest entities | variable_interest_entity		34
Wind electric generating facility capability (in megawatts) | MW	220
NextEra Energy Resources [Member] | Variable Interest Entities Gas And Oil Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Total number of consolidated variable interest entities | variable_interest_entity		2
Carrying amount of assets, consolidated variable interest entity		$ 198	216
Carrying amount of liabilities, consolidated variable interest entity		$ 24	$ 25
Natural gas and or oil electric generating facility capacity (in megawatts) | MW		1,450
NextEra Energy Resources [Member] | Variable Interest Entities Wind and Solar Primary Beneficiary [Member] [Member]
Variable Interest Entity [Line Items]
Total number of consolidated variable interest entities | variable_interest_entity		28	26
Carrying amount of assets, consolidated variable interest entity		$ 11,800	$ 11,300
Carrying amount of liabilities, consolidated variable interest entity		$ 700	800
Solar generating facility capability (in MW) | MW		813
Wind electric generating facility capability (in megawatts) | MW		7,482
Indirect Subsidiary of NextEra Energy Resources [Member] | Photovoltaic Solar Facility [Member]
Variable Interest Entity [Line Items]
Total number of consolidated variable interest entities | variable_interest_entity		3
Carrying amount of assets, consolidated variable interest entity		$ 784	776
Carrying amount of liabilities, consolidated variable interest entity		$ 624	598
Ownership percentage		50.00%
Number of entities with ownership interest contributed | variable_interest_entity		5
Solar generating facility capability (in MW) | MW		409
Other Investments [Member] | Subsidiaries of NEE [Member]
Variable Interest Entity [Line Items]
Investment in equity method investees		$ 3,872	$ 4,254
Number of entities committed to invest in | entity		5

Equity (Earnings Per Share) (De

Equity (Earnings Per Share) (Details) $ / shares in Units, $ in Millions	Sep. 14, 2020shares	Oct. 23, 2020USD ($)	Sep. 30, 2020USD ($)$ / sharesshares	Sep. 30, 2019USD ($)$ / sharesshares	Sep. 30, 2020USD ($)$ / sharesshares	Sep. 30, 2019USD ($)$ / sharesshares	Dec. 31, 2019shares
Reconciliation of basic and diluted earnings per share of common stock [Abstract]
Net income attributable to NEE - basic | $			$ 1,229	$ 879	$ 2,924	$ 2,794
Dilutive Securities, Effect on Basic Earnings Per Share | $			(1)	0	0	0
Net income attributable to NEE - assuming dilution | $			$ 1,228	$ 879	$ 2,924	$ 2,794
Denominator:
Weighted-average number of common shares outstanding - basic | shares			489,900,000	481,900,000	489,600,000	479,700,000
Equity units, stock options, performance share awards and restricted stock | shares			2,300,000	4,100,000	2,300,000	3,800,000
Weighted-average number of common shares outstanding - assuming dilution | shares			492,200,000	486,000,000	491,900,000	483,500,000
Earnings per share attributable to NEE:
Basic (in dollars per share) | $ / shares			$ 2.51	$ 1.82	$ 5.97	$ 5.82
Assuming dilution (in dollars per share) | $ / shares			$ 2.50	$ 1.81	$ 5.94	$ 5.78
Class of Stock [Line Items]
Antidilutive securities (in shares) | shares			11,500,000	2,200,000	9,000,000	1,000,000
Stock split, conversion ratio	4
Common stock, shares authorized (in shares) | shares	3,200,000,000		800,000,000		800,000,000		800,000,000
Pro forma earnings per share (USD pre share) | $ / shares			$ 0.62	$ 0.45	$ 1.49	$ 1.44
NextEra Energy Partners [Member] | Series A Convertible Preferred Units [Member]
Class of Stock [Line Items]
Amount of shares converted | $			$ 71	$ 183
NextEra Energy Partners [Member] | Series A Convertible Preferred Units [Member] | Subsequent Event [Member]
Class of Stock [Line Items]
Amount of shares converted | $		$ 46

Equity (Accumulated Other Compr

Equity (Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Other comprehensive income (loss) before reclassifications	$ 11	$ 31	$ (43)	$ 6	$ 15	$ (35)
Amounts reclassified from AOCI	2	1	4	4	7	11
Total other comprehensive income, net of tax	13	32	(39)	10	22	(24)	$ 6	$ 8
Impact of disposal of a business			10
Acquisition of Gulf Power						(1)
Attributable to noncontrolling interests	(1)						(1)
Attributable to NEE	(152)						(152)		$ (169)
Ending balance	(153)			(181)			(153)	(181)
Net Unrealized Gains (Losses) on Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	1	(2)	(27)	(38)	(46)	(55)	(27)	(55)
Other comprehensive income (loss) before reclassifications	0	0	0	0	0	0
Amounts reclassified from AOCI	2	3	2	6	8	10
Total other comprehensive income, net of tax	2	3	2	6	8	10
Impact of disposal of a business			23
Acquisition of Gulf Power						(1)
Attributable to noncontrolling interests	0						0
Attributable to NEE	3						3
Ending balance	3	1	(2)	(32)	(38)	(46)	3	(32)
Net Unrealized Gains (Losses) on Available for Sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	16	2	11	9	3	(7)	11	(7)
Other comprehensive income (loss) before reclassifications	3	14	(8)	4	7	8
Amounts reclassified from AOCI	(1)	0	(1)	(1)	(1)	2
Total other comprehensive income, net of tax	2	14	(9)	3	6	10
Impact of disposal of a business			0
Acquisition of Gulf Power						0
Attributable to noncontrolling interests	0						0
Attributable to NEE	18						18
Ending balance	18	16	2	12	9	3	18	12
Defined Benefit Pension and Other Benefits Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(113)	(111)	(114)	(119)	(118)	(65)	(114)	(65)
Other comprehensive income (loss) before reclassifications	0	0	0	0	(1)	(52)
Amounts reclassified from AOCI	1	(2)	3	(1)	0	(1)
Total other comprehensive income, net of tax	1	(2)	3	(1)	(1)	(53)
Impact of disposal of a business			0
Acquisition of Gulf Power						0
Attributable to noncontrolling interests	0						0
Attributable to NEE	(112)						(112)
Ending balance	(112)	(113)	(111)	(120)	(119)	(118)	(112)	(120)
Net Unrealized Gains (Losses) on Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(73)	(90)	(42)	(45)	(53)	(63)	(42)	(63)
Other comprehensive income (loss) before reclassifications	8	17	(35)	1	8	10
Amounts reclassified from AOCI	0	0	0	0	0	0
Total other comprehensive income, net of tax	8	17	(35)	1	8	10
Impact of disposal of a business			(13)
Acquisition of Gulf Power						0
Attributable to noncontrolling interests	(1)						(1)
Attributable to NEE	(64)						(64)
Ending balance	(65)	(73)	(90)	(44)	(45)	(53)	(65)	(44)
Other Comprehensive Income (Loss) Related to Equity Method Investees
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	3	3	3	2	1	2	3	2
Other comprehensive income (loss) before reclassifications	0	0	0	1	1	(1)
Amounts reclassified from AOCI	0	0	0	0	0	0
Total other comprehensive income, net of tax	0	0	0	1	1	(1)
Impact of disposal of a business			0
Acquisition of Gulf Power						0
Attributable to noncontrolling interests	0						0
Attributable to NEE	3						3
Ending balance	3	3	3	3	2	1	3	3
AOCI Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(166)	(198)	(169)	(191)	(213)	(188)	$ (169)	$ (188)
Total other comprehensive income, net of tax	$ 11	29	(33)	$ 10	22	(24)
Ending balance		$ (166)	$ (198)		$ (191)	$ (213)

Debt - Long-term Debt Issuances

Debt - Long-term Debt Issuances and Borrowings (Details)	9 Months Ended
	Sep. 30, 2020USD ($)
FPL [Member] | First mortgage bonds [Member]
Debt Instrument [Line Items]
Principal Amount	$ 1,100,000,000
Interest Rate (as a percent)	2.85%
FPL [Member] | Senior Unsecured Notes [Member]
Debt Instrument [Line Items]
Principal Amount	$ 1,570,000,000
Interest Rate Terms	Variable
Notes that permit individual noteholders to require repayment prior to maturity	$ 320,000,000
NextEra Energy Capital Holdings, Inc. [Member] | Debentures [Member]
Debt Instrument [Line Items]
Principal Amount	$ 3,490,000,000
NextEra Energy Capital Holdings, Inc. [Member] | Debentures [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest Rate (as a percent)	2.25%
NextEra Energy Capital Holdings, Inc. [Member] | Debentures [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest Rate (as a percent)	3.55%
NextEra Energy Capital Holdings, Inc. [Member] | Debentures Related To Nextera Energys Equity Units [Member]
Debt Instrument [Line Items]
Principal Amount	$ 4,500,000,000
NextEra Energy Capital Holdings, Inc. [Member] | Debentures Related To Nextera Energys Equity Units [Member] | Minimum [Member]
Debt Instrument [Line Items]
Interest Rate (as a percent)	0.509%
NextEra Energy Capital Holdings, Inc. [Member] | Debentures Related To Nextera Energys Equity Units [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest Rate (as a percent)	1.84%
NextEra Energy Capital Holdings, Inc. [Member] | Japanese Yen Denominated Term Loan [Member]
Debt Instrument [Line Items]
Principal Amount	$ 530,000,000
Interest Rate Terms	Variable

Debt - Narrative (Details)

Debt - Narrative (Details) - USD ($)	1 Months Ended
	Sep. 30, 2020	Feb. 29, 2020	Oct. 24, 2020
NEE Equity Units February 2020 [Member]
Debt Instrument [Line Items]
Amount of equity units sold		$ 2,500,000,000
Stated amount of each equity unit (in dollars per share)		$ 50
Undivided beneficial ownership interest per debenture (in hundredths)		5.00%
Principal amount of each debenture		$ 1,000
Number of shares (subject to antidilution adjustments) if purchased on final settlement date at less than or equal to low range threshold (in shares)	0.1773
Number of shares (subject to antidilution adjustments) if purchased on the final settlement date at equal to or greater than high range threshold (in shares)	0.1418
Trading period (in days) over which the market value is determined by reference to the average closing prices of the common stock		20 days
Rate of total annual distributions on equity units (in hundredths)	5.279%
Rate of payments on stock purchase contracts (in hundredths)	3.439%
Interest rate (as a percent)	1.84%
NEE Equity Units September 2020 [Member]
Debt Instrument [Line Items]
Amount of equity units sold	$ 2,000,000,000
Stated amount of each equity unit (in dollars per share)	$ 50
Undivided beneficial ownership interest per debenture (in hundredths)	5.00%
Principal amount of each debenture	$ 1,000
Number of shares (subject to antidilution adjustments) if purchased on final settlement date at less than or equal to low range threshold (in shares)	0.1691
Number of shares (subject to antidilution adjustments) if purchased on the final settlement date at equal to or greater than high range threshold (in shares)	0.1353
Trading period (in days) over which the market value is determined by reference to the average closing prices of the common stock	20 days
Rate of total annual distributions on equity units (in hundredths)	6.219%
Rate of payments on stock purchase contracts (in hundredths)	5.71%
Interest rate (as a percent)	0.509%
Minimum [Member] | NEE Equity Units February 2020 [Member]
Debt Instrument [Line Items]
Price per share of stock purchase contract (in dollars per share)	$ 282.04	$ 282.04
Minimum [Member] | NEE Equity Units September 2020 [Member]
Debt Instrument [Line Items]
Price per share of stock purchase contract (in dollars per share)	295.70
Maximum [Member] | NEE Equity Units February 2020 [Member]
Debt Instrument [Line Items]
Price per share of stock purchase contract (in dollars per share)	352.55	$ 352.55
Maximum [Member] | NEE Equity Units September 2020 [Member]
Debt Instrument [Line Items]
Price per share of stock purchase contract (in dollars per share)	$ 369.63
NextEra Energy Capital Holdings, Inc. [Member] | Series I Junior Subordinated Debentures due 2072 [Member] | Forecast [Member]
Debt Instrument [Line Items]
Interest rate (as a percent)			5.125%
Debt redeemed			$ 500,000,000
NextEra Energy Capital Holdings, Inc. [Member] | Series J Junior Subordinated Debentures due 2073 [Member] | Forecast [Member]
Debt Instrument [Line Items]
Interest rate (as a percent)			5.00%
Debt redeemed			$ 450,000,000
NextEra Energy Capital Holdings, Inc. [Member] | Minimum [Member] | Debentures Related To Nextera Energys Equity Units [Member]
Debt Instrument [Line Items]
Interest rate (as a percent)	0.509%
NextEra Energy Capital Holdings, Inc. [Member] | Maximum [Member] | Debentures Related To Nextera Energys Equity Units [Member]
Debt Instrument [Line Items]
Interest rate (as a percent)	1.84%

Summary of Significant Accoun_3

Summary of Significant Accounting and Reporting Policies (Details) € in Millions, $ in Millions	Feb. 11, 2020solar_generation_facilityMW	Sep. 30, 2019MW	Jun. 30, 2019USD ($)solar_generation_facilitywind_generation_facilityMW	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2020EUR (€)	Sep. 15, 2020customer	Jan. 01, 2020USD ($)	Dec. 31, 2019USD ($)
Subsidiary, Sale of Stock [Line Items]
Restricted Cash and Cash Equivalents				$ 476		$ 476					$ 508
Restricted cash related to margin cash collateral that is netted against derivative instruments				158		158					139
restricted cash related to margin cash collateral that is netted against derivative liabilities				14		14					66
Gain in connection with sale				(11)	$ (2)	279	$ 378
Retained earnings				26,054		26,054					25,199
Impairment of Long-Lived Assets Held-for-use					73		73
Impairment of Long-Lived Assets Held-for-use, Net of Tax					$ 54		54
FPL [Member]
Subsidiary, Sale of Stock [Line Items]
Restricted Cash and Cash Equivalents				114		114					118
Retained earnings				9,562		9,562					9,174
NextEra Energy Resources [Member]
Subsidiary, Sale of Stock [Line Items]
Wind electric generating facility capability (in megawatts) | MW		220
Gulf Power [Member]
Subsidiary, Sale of Stock [Line Items]
Number of customers experienced electrical outlets | customer									285,000
Recoverable storm costs				200
Measurement of Credit Losses on Financial Instruments [Member]
Subsidiary, Sale of Stock [Line Items]
Retained earnings										$ 11
Other Current Assets [Member]
Subsidiary, Sale of Stock [Line Items]
Restricted cash and cash equivalents, current				368		368					411
Other Current Assets [Member] | FPL [Member]
Subsidiary, Sale of Stock [Line Items]
Restricted cash and cash equivalents, current				73		73					54
Two solar generation facilities located in Spain [Member] | Disposed of by Sale [Member]
Subsidiary, Sale of Stock [Line Items]
Gain in connection with sale						270
Disposal Group, Including Discontinued Operation, Other Assets, Current											440
Disposal Group, Including Discontinued Operation, Other Liabilities, Current											647
Two solar generation facilities located in Spain [Member] | Disposed of by Sale [Member] | NextEra Energy Resources [Member]
Subsidiary, Sale of Stock [Line Items]
Number of generation facilities sold | solar_generation_facility	2
Generating capacity (MW) | MW	99.8
Purchase price				$ 121		$ 121		€ 111
Wind plants [Member] | Disposed of by Sale [Member] | NextEra Energy Resources [Member]
Subsidiary, Sale of Stock [Line Items]
Number of generation facilities sold | wind_generation_facility			3
Solar plants [Member] | Disposed of by Sale [Member] | NextEra Energy Resources [Member]
Subsidiary, Sale of Stock [Line Items]
Number of generation facilities sold | solar_generation_facility			3
Solar plants [Member] | Disposed of by Sale [Member] | Noncontrolling Interest [Member] | NextEra Energy Resources [Member]
Subsidiary, Sale of Stock [Line Items]
Number of generation facilities sold | solar_generation_facility			2
Three Wind Generation Facilities And Three Solar Generation Facilities [Member] | Disposed of by Sale [Member]
Subsidiary, Sale of Stock [Line Items]
Gain in connection with sale							341
Disposal Group, Not Discontinued Operation, Gain (Loss) On Disposal, Net Of Tax							$ 259
Disposal Group, Including Discontinued Operation, Stockholders' Equity Attributable to Noncontrolling Interest											$ 118
Three Wind Generation Facilities And Three Solar Generation Facilities [Member] | Disposed of by Sale [Member] | NextEra Energy Resources [Member]
Subsidiary, Sale of Stock [Line Items]
Generating capacity (MW) | MW			611
Purchase price			$ 1,000
Disposal Group, Including Discontinued Operation, Working Capital			$ 12

Commitments and Contingencies_2

Commitments and Contingencies (Planned Capital Expenditures) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020USD ($)MW
FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	$ 2,030
2021	6,895
2022	6,655
2023	6,470
2024	6,725
Total	28,775
Gulf Power [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	260
2021	860
2022	695
2023	625
2024	685
Total	3,125
NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	1,985
2021	4,420
2022	940
2023	615
2024	305
Total	8,265
New Generation Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	375
2021	860
2022	900
2023	680
2024	540
Total	3,355
Existing Generation Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	460
2021	1,055
2022	1,140
2023	1,035
2024	1,020
Total	4,710
Transmission And Distribution Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	860
2021	4,020
2022	3,665
2023	3,825
2024	4,290
Total	16,660
Allowance for funds used during construction (AFUDC) - remainder of 2020	10
Allowance for funds used during construction (AFUDC) - 2021	50
Allowance for funds used during construction (AFUDC) - 2022	50
Allowance for funds used during construction (AFUDC) - 2023	40
Allowance for funds used during construction (AFUDC) - 2024	55
Nuclear Fuel Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	85
2021	220
2022	170
2023	120
2024	145
Total	740
General And Other Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	250
2021	740
2022	780
2023	810
2024	730
Total	3,310
Wind Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	785
2021	1,605
2022	30
2023	20
2024	25
Total	$ 2,465
Planned new generation over 5 year period (in megawatts) | MW	4,784
Solar Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	$ 430
2021	1,520
2022	565
2023	375
2024	0
Total	$ 2,890
Planned new generation over 5 year period (in megawatts) | MW	2,977
Battery Storage Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	$ 250
2021	275
2022	60
2023	0
2024	0
Total	585
Nuclear Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	60
2021	230
2022	185
2023	140
2024	190
Total	805
Pipelines [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	195
2021	410
2022	0
2023	0
2024	0
Total	605
Rate-Regulated Transmission [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	85
2021	220
2022	30
2023	10
2024	15
Total	360
Other Expenditures [Member] | NextEra Energy Resources [Member]
Planned Capital Expenditures [Line Items]
Remainder of 2020	180
2021	160
2022	70
2023	70
2024	75
Total	555
Generation Expenditures [Member] | FPL [Member]
Planned Capital Expenditures [Line Items]
Allowance for funds used during construction (AFUDC) - remainder of 2020	10
Allowance for funds used during construction (AFUDC) - 2021	60
Allowance for funds used during construction (AFUDC) - 2022	50
Allowance for funds used during construction (AFUDC) - 2023	25
Allowance for funds used during construction (AFUDC) - 2024	$ 20

Commitments and Contingencies_3

Commitments and Contingencies (Long-term Purchase Commitment) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
FPL [Member]
Required capacity and/or minimum payments [Abstract]
Remainder of 2020	$ 270		$ 270
2021	1,010		1,010
2022	965		965
2023	945		945
2024	940		940
Thereafter	10,250		10,250
Related Party Transaction, Amounts of Transaction	104	$ 80	280	$ 236
FPL [Member] | Sabal Trail and Florida Southeast Connection [Member] | Natural Gas, Including Transportation And Storage, Contract Minimum Payments [Member]
Required capacity and/or minimum payments [Abstract]
Remainder of 2020	105		105
2021	415		415
2022	415		415
2023	410		410
2024	410		410
Thereafter	6,765		6,765
NextEra Energy Resources [Member]
Required capacity and/or minimum payments [Abstract]
Remainder of 2020	1,420		1,420
2021	2,520		2,520
2022	415		415
2023	210		210
2024	210		210
Thereafter	1,440		1,440
Commitment to invest	85		85
Joint Obligations Remainder Current Year	205		205
Joint Obligations Second Year	355		355
Joint Obligations Third Year	20		20
Joint Obligations Fourth Year	20		20
Joint Obligations Fifth Year	10		10
Joint Obligations After Fifth Year	15		15
NextEra Energy Resources [Member] | Contract Group 1 [Member]
Long-term Purchase Commitment [Line Items]
Commitment amount included in capital expenditures	4,000		4,000
NextEra Energy Resources [Member] | Mountain Valley Pipeline [Member]
Required capacity and/or minimum payments [Abstract]
2021	20		20
2022	70		70
2023	70		70
2024	70		70
Thereafter	$ 1,160		$ 1,160
Equity method investment, ownership percentage	31.00%		31.00%
Consolidation, Eliminations [Member] | FPL [Member]
Required capacity and/or minimum payments [Abstract]
Related Party Transaction, Amounts of Transaction	$ 27	$ 28	$ 81	$ 81

Commitments and Contingencies_4

Commitments and Contingencies (Insurance) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020USD ($)
Insurance [Abstract]
Maximum obtainable amount of private liability insurance available under Price-Anderson Act	$ 450
Amount of secondary financial protection liability insurance coverage per incident	13,300
Potential retrospective assessments under secondary financial protection system	1,100
Potential retrospective assessments under secondary financial protection system payable per incident per year	164
Amount of coverage per occurrence per site for property damage, decontamination and premature decommissioning risks	2,750
Amount of sublimit for nonnuclear perils per occurrence per site under nuclear insurance mutual companies for property damage decontamination and premature decommissioning risks	$ 1,500
Coinsurance, percent	10.00%
Coinsurance, limit of coverage per loss per site occurrence	$ 400
Potential amount of retrospective assessment per occurrence per site for property damage, decontamination and premature decommissioning risks	173
FPL [Member]
Insurance [Abstract]
Potential retrospective assessments under secondary financial protection system	550
Potential retrospective assessments under secondary financial protection system payable per incident per year	82
Potential amount of retrospective assessment per occurrence per site for property damage, decontamination and premature decommissioning risks	106
Duane Arnold Energy Center Insurance [Member]
Insurance [Abstract]
Amount of sublimit for nonnuclear perils per occurrence per site under nuclear insurance mutual companies for property damage decontamination and premature decommissioning risks	500
Seabrook Station Insurance [Member]
Insurance [Abstract]
Potential retrospective assessment recoverable from minority interest for nuclear liability secondary financial protection	16
Potential retrospective assessment recoverable from minority interest for property damage, decontamination and premature decommissioning risks	2
Duane Arnold Energy Center Insurance [Member]
Insurance [Abstract]
Potential retrospective assessment recoverable from minority interest for nuclear liability secondary financial protection	41
Potential retrospective assessment recoverable from minority interest for property damage, decontamination and premature decommissioning risks	4
St Lucie Unit No 2 Insurance [Member]
Insurance [Abstract]
Potential retrospective assessment recoverable from minority interest for nuclear liability secondary financial protection	20
Potential retrospective assessment recoverable from minority interest for property damage, decontamination and premature decommissioning risks	$ 4

Segment Information (Details)

Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Operating revenues	$ 4,785	$ 5,572	$ 13,602	$ 14,616
Operating expenses - net	3,777	3,979	9,426	10,140
Net income (loss) attributable to NEE	1,229	879	2,924	2,794
Net Income	$ 1,123	798	$ 2,559	2,544
Deemed capital structure of NextEra Energy Resources	70.00%		70.00%
Total assets	$ 126,382		$ 126,382		$ 117,691
Operating Segments [Member] | FPL [Member]
Segment Reporting Information [Line Items]
Operating revenues	3,455	3,491	8,820	9,267
Operating expenses - net	2,395	2,518	5,779	6,582
Net income (loss) attributable to NEE	757	683		1,934
Net Income			2,148
Total assets	60,503		60,503		57,188
Operating Segments [Member] | Gulf Power [Member]
Segment Reporting Information [Line Items]
Operating revenues	404	440	1,065	1,134
Operating expenses - net	289	332	817	901
Net income (loss) attributable to NEE	91	76
Net Income			185	158
Total assets	6,679		6,679		5,855
Operating Segments [Member] | NextEra Energy Resources [Member]
Segment Reporting Information [Line Items]
Operating revenues	953	1,675	3,802	4,301
Operating expenses - net	1,026	1,117	2,706	2,579
Net income (loss) attributable to NEE	376	381	1,175	1,374
Total assets	54,961		54,961		51,516
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Operating revenues	(27)	(34)	(85)	(86)
Operating expenses - net	67	12	124	78
Net income (loss) attributable to NEE	5	$ (261)	(584)	$ (672)
Total assets	$ 4,239		$ 4,239		$ 3,132