CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income		$ 3,252	$ 1,988
Net Income		3,223	1,946
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		2,576	2,262
Nuclear fuel and other amortization		210	275
Unrealized losses on marked to market derivative contracts - net		45	369
Foreign currency transaction losses (gains)		(23)	99
Deferred income taxes		1,316	766
Cost recovery clauses and franchise fees		61	111
Acquisition of purchased power agreement		(258)	0
Benefits associated with differential membership interests - net		(311)	(220)
Gains on disposal of a business/assets - net		(1,170)	(291)
Recoverable storm-related costs		(334)	(17)
Other - net		106	(161)
Changes in operating assets and liabilities:
Current assets		(544)	(204)
Noncurrent assets		(77)	(17)
Current liabilities		299	362
Noncurrent liabilities		12	(28)
Net cash provided by operating activities		5,160	5,294
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(3,676)	(2,976)
Independent power and other investments of NEER		(4,678)	(4,610)
Nuclear fuel purchases		(175)	(194)
Other capital expenditures and other investments		(58)	(149)
Proceeds from sale of the fiber-optic telecommunications business		1,482	0
Sale of independent power and other investments of NEER		159	395
Proceeds from sale or maturity of securities in special use funds		2,059	2,635
Purchases of securities in special use funds		(2,146)	(2,711)
Proceeds from sales of noncontrolling interests in NEP		0	645
Other - net		198	(18)
Net cash used in investing activities		(6,835)	(6,983)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt		5,196	4,644
Retirements of long-term debt		(3,892)	(2,654)
Proceeds from differential membership investors		340	328
Net change in commercial paper		1,806	254
Proceeds from other short-term debt		200	500
Repayments of other short-term debt		(2)	(362)
Issuances of common stock - net		36	528
Dividends		(1,382)	(1,205)
Other - net		(538)	(234)
Net cash provided by (used in) financing activities		1,764	1,799
Net increase (decrease) in cash and cash equivalents		89	110
Cash and cash equivalents at beginning of period		1,292	571
Cash and cash equivalents at end of period		1,381	681
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		2,036	2,655
Decrease (increase) in property, plant and equipment - net as a result of cash grants primarily under the Recovery Act		(145)	403
Increase in property, plant and equipment - net as a result of a settlement/noncash exchange		(92)	(70)
Proceeds from differential membership investors used to reduce debt		0	100
FPL [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	[1]	1,537	1,356
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		1,514	1,207
Nuclear fuel and other amortization		153	167
Deferred income taxes		987	569
Cost recovery clauses and franchise fees		61	111
Acquisition of purchased power agreement		(258)	0
Recoverable storm-related costs		(334)	(17)
Other - net		(63)	(15)
Changes in operating assets and liabilities:
Current assets		(578)	(185)
Noncurrent assets		(45)	12
Current liabilities		507	679
Noncurrent liabilities		(13)	(94)
Net cash provided by operating activities		3,468	3,790
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(3,676)	(2,976)
Nuclear fuel purchases		(104)	(121)
Proceeds from sale or maturity of securities in special use funds		1,241	1,775
Purchases of securities in special use funds		(1,320)	(1,836)
Other - net		29	32
Net cash used in investing activities		(3,830)	(3,126)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt		200	150
Retirements of long-term debt		(73)	(262)
Net change in commercial paper		811	408
Proceeds from other short-term debt		200	500
Repayments of other short-term debt		(2)	(150)
Dividends		(800)	(1,300)
Other - net		1	13
Net cash provided by (used in) financing activities		337	(641)
Net increase (decrease) in cash and cash equivalents		(25)	23
Cash and cash equivalents at beginning of period		33	23
Cash and cash equivalents at end of period		8	46
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		400	475
Increase in property, plant and equipment - net as a result of a settlement/noncash exchange		$ (96)	$ 0

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