CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)		$ 3,388	$ 5,776	$ 5,323
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		4,216	3,911	2,357
Nuclear fuel and other amortization		262	236	281
Impairment charges		72	11	446
Unrealized losses (gains) on marked to market derivative contracts – net		(108)	54	436
Foreign currency transaction losses (gains)		17	16	(25)
Deferred income taxes		258	1,463	(882)
Cost recovery clauses and franchise fees		155	(225)	82
Acquisition of purchased power agreement		0	(52)	(243)
Benefits associated with differential membership interests - net		0	0	(460)
Equity in earnings of equity method investees		(66)	(358)	(141)
Distributions of earnings from equity method investees		438	328	160
Gains on disposal of businesses, assets and investments – net		(461)	(191)	(1,223)
Gain on NEP deconsolidation		0	(3,927)	0
Recoverable storm-related costs		(180)	0	(108)
Other - net		(213)	156	109
Changes in operating assets and liabilities:
Current assets		123	(631)	(333)
Noncurrent assets		(93)	(220)	(60)
Current liabilities		116	163	758
Noncurrent liabilities		231	83	(19)
Net cash provided by operating activities		8,155	6,593	6,458
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(5,560)	(5,012)	(5,174)
Acquisition and capital expenditures of Gulf Power		(5,165)	0	0
Independent power and other investments of NEER		(6,385)	(7,045)	(5,335)
Nuclear fuel purchases		(315)	(267)	(197)
Other capital expenditures, acquisitions and other investments		(37)	(680)	(34)
Proceeds from sale of the fiber-optic telecommunications business		0	0	1,454
Sale of independent power and other investments of NEER		1,163	1,617	178
Proceeds from sale or maturity of securities in special use funds and other investments		4,008	3,410	3,207
Purchases of securities in special use funds and other investments		(4,160)	(3,733)	(3,244)
Distributions from equity method investees		0	637	7
Other - net		274	123	220
Net cash used in investing activities		(16,177)	(10,950)	(8,918)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt		13,919	4,399	8,354
Retirements of long-term debt		(5,492)	(3,102)	(6,780)
Proceeds from differential membership investors		1,604	1,841	1,414
Net change in commercial paper		(234)	1,062	1,419
Proceeds from other short-term debt		200	5,665	450
Repayments of other short-term debt		(4,765)	(455)	(2)
Payments to related parties under a cash sweep and credit support agreement – net		(54)	(21)	0
Issuances of common stock - net		1,494	718	55
Proceeds from issuance of NEP convertible preferred units - net		0	0	548
Dividends on common stock		(2,408)	(2,101)	(1,845)
Other - net		(391)	(372)	(725)
Net cash provided by (used in) financing activities		3,873	7,634	2,888
Effects of currency translation on cash, cash equivalents and restricted cash		4	(7)	26
Net increase (decrease) in cash, cash equivalents and restricted cash		(4,145)	3,270	454
Cash, cash equivalents and restricted cash at beginning of year		5,253	1,983	1,529
Cash, cash equivalents and restricted cash at end of year		1,108	5,253	1,983
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest (net of amount capitalized)		1,799	1,209	1,186
Cash paid for income taxes - net		184	200	142
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		3,573	2,138	3,029
Decrease in property, plant and equipment - net as a result of cash grants primarily under the American Recovery and Reinvestment Act of 2009		0	0	(154)
Increase in property, plant and equipment - net as a result of a settlement/noncash exchange		(7)	(5)	(108)
FPL[Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	[1]	2,334	2,171	1,880
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		2,524	2,633	940
Nuclear fuel and other amortization		175	144	159
Deferred income taxes		44	180	905
Cost recovery clauses and franchise fees		177	(225)	82
Acquisition of purchased power agreement		0	(52)	(243)
Recoverable storm-related costs		0	0	(108)
Other - net		6	7	(139)
Changes in operating assets and liabilities:
Current assets		(48)	97	(190)
Noncurrent assets		(67)	(64)	(37)
Current liabilities		32	(509)	699
Noncurrent liabilities		4	40	(32)
Net cash provided by operating activities		5,181	4,422	3,916
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(5,560)	(5,012)	(5,174)
Nuclear fuel purchases		(195)	(123)	(117)
Proceeds from sale or maturity of securities in special use funds and other investments		2,729	2,232	1,986
Purchases of securities in special use funds and other investments		(2,854)	(2,402)	(2,082)
Other - net		10	239	18
Net cash used in investing activities		(5,870)	(5,066)	(5,369)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt		2,498	1,748	1,961
Retirements of long-term debt		(95)	(1,591)	(882)
Net change in commercial paper		226	(431)	1,419
Proceeds from other short-term debt		0	0	450
Repayments of other short-term debt		0	(250)	(2)
Capital contributions from NEE		250	1,785	0
Dividends on common stock		(2,200)	(500)	(1,450)
Other - net		(49)	(37)	(22)
Net cash provided by (used in) financing activities		630	724	1,474
Net increase (decrease) in cash, cash equivalents and restricted cash		(59)	80	21
Cash, cash equivalents and restricted cash at beginning of year		254	174	153
Cash, cash equivalents and restricted cash at end of year		195	254	174
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest (net of amount capitalized)		561	520	473
Cash paid for income taxes - net		544	415	2
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		680	549	668
Increase in property, plant and equipment - net as a result of a settlement/noncash exchange		(7)	(5)	(112)
NEE's noncash contribution of a consolidated subsidiary - net		$ 0	$ 526	$ 0

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