CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income		$ 4,532	$ 2,395	[1],[2]
Net Income		5,223	2,376	[2]
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		1,688	1,505	[1]
Nuclear fuel and other amortization		127	143	[1]
Unrealized losses (gains) on marked to market derivative contracts - net		(1)	14	[1]
Foreign currency transaction losses (gains)		11	(12)	[1]
Deferred income taxes		1,395	886	[1]
Cost recovery clauses and franchise fees		(49)	10	[1]
Acquisition of purchased power agreement		(52)	(243)	[1]
Gains on disposal of a business/assets - net		(108)	(1,149)	[1]
Gain on NEP deconsolidation		(3,935)	0	[1],[2]
Recoverable storm-related costs		0	(105)	[1]
Other - net		(101)	(106)	[1]
Changes in operating assets and liabilities:
Current assets		(126)	(229)	[1]
Noncurrent assets		(6)	(105)	[1]
Current liabilities		(419)	206	[1]
Noncurrent liabilities		(23)	41	[1]
Net cash provided by operating activities		2,933	3,251	[1]
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(2,414)	(2,648)	[1]
Independent power and other investments of NEER		(3,220)	(4,106)	[1]
Nuclear fuel purchases		(188)	(149)	[1]
Other capital expenditures and other investments		(101)	(34)	[1]
Proceeds from sale of the fiber-optic telecommunications business		0	1,482	[1]
Proceeds from sale or maturity of securities in special use funds		1,788	1,419	[1]
Purchases of securities in special use funds		(1,992)	(1,531)	[1]
Distributions from equity method investees		633	7	[1]
Other - net		139	46	[1]
Net cash used in investing activities		(5,355)	(5,514)	[1]
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt		2,875	2,771	[1]
Retirements of long-term debt		(1,214)	(1,885)	[1]
Net change in commercial paper		705	1,847	[1]
Proceeds from other short-term debt		200	200	[1]
Repayments of other short-term debt		(250)	0	[1]
Issuances of common stock - net		11	25	[1]
Dividends		(1,047)	(920)	[1]
Other - net		(90)	(361)	[1]
Net cash provided by (used in) financing activities		1,190	1,677	[1]
Effects of currency translation on cash, cash equivalents and restricted cash		(15)	0	[1]
Net decrease in cash, cash equivalents and restricted cash		(1,247)	(586)	[1]
Cash, cash equivalents and restricted cash at beginning of period		1,983	1,529	[1]
Cash, cash equivalents and restricted cash at end of period		736	943	[1]
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		1,772	1,288	[1]
Increase in property, plant and equipment - net as a result of cash grants primarily under the Recovery Act		0	(145)	[1]
Decrease (increase) in property, plant and equipment - net as a result of a settlement/non-cash exchange		14	(142)	[1]
FPL [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	[3]	1,110	971	[4]
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		1,056	810	[4]
Nuclear fuel and other amortization		76	101	[4]
Deferred income taxes		268	399	[4]
Cost recovery clauses and franchise fees		(49)	10	[4]
Acquisition of purchased power agreement		(52)	(243)	[4]
Recoverable storm-related costs		0	(105)	[4]
Other - net		4	(44)	[4]
Changes in operating assets and liabilities:
Current assets		(139)	(227)	[4]
Noncurrent assets		(15)	(16)	[4]
Current liabilities		(325)	437	[4]
Noncurrent liabilities		(55)	(13)	[4]
Net cash provided by operating activities		1,879	2,080	[4]
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(2,414)	(2,648)	[4]
Nuclear fuel purchases		(90)	(94)	[4]
Proceeds from sale or maturity of securities in special use funds		1,101	902	[4]
Purchases of securities in special use funds		(1,228)	(949)	[4]
Other - net		22	(1)	[4]
Net cash used in investing activities		(2,609)	(2,790)	[4]
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt		1,594	200	[4]
Retirements of long-term debt		(798)	(35)	[4]
Net change in commercial paper		(700)	732	[4]
Proceeds from other short-term debt		0	200	[4]
Repayments of other short-term debt		(250)	0	[4]
Capital contribution from NEE		850	0	[4]
Dividends		0	(400)	[4]
Other - net		(28)	(2)	[4]
Net cash provided by (used in) financing activities		668	695	[4]
Net decrease in cash, cash equivalents and restricted cash		(62)	(15)	[4]
Cash, cash equivalents and restricted cash at beginning of period		174	153	[4]
Cash, cash equivalents and restricted cash at end of period		112	138	[4]
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		488	477	[4]
Decrease (increase) in property, plant and equipment - net as a result of a settlement/non-cash exchange		$ 14	$ (144)	[4]

[1] Prior period amounts have been retrospectively adjusted as discussed in Note 11 - Restricted Cash.

[2] Prior period amounts have been retrospectively adjusted as discussed in Note 3 - Amendments to Presentation of Retirement Benefits.

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

[4] Prior period amounts have been retrospectively adjusted as discussed in Note 11 - Restricted Cash.