CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income		$ 3,831	$ 1,591	[1],[2]
Net Income		4,428	1,583	[2]
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		857	619	[1]
Nuclear fuel and other amortization		67	72	[1]
Unrealized gains on marked to market derivative contracts - net		(193)	(169)	[1]
Foreign currency transaction losses		38	28	[1]
Deferred income taxes		1,271	565	[1]
Cost recovery clauses and franchise fees		(47)	16	[1]
Acquisition of purchased power agreement		(52)	(259)	[1]
Gains on disposal of a business/assets - net		(66)	(1,145)	[1]
Gain on NEP deconsolidation		(3,935)	0
Recoverable storm-related costs		0	(90)	[1]
Other - net		(86)	69	[1]
Changes in operating assets and liabilities:
Current assets		237	36	[1]
Noncurrent assets		(22)	(170)	[1]
Current liabilities		(590)	261	[1]
Noncurrent liabilities		(20)	(166)	[1]
Net cash provided by operating activities		1,290	1,258	[1]
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(1,166)	(1,687)	[1]
Independent power and other investments of NEER		(2,300)	(3,337)	[1]
Nuclear fuel purchases		(110)	(129)	[1]
Other capital expenditures and other investments		(12)	(26)	[1]
Proceeds from sale of the fiber-optic telecommunications business		0	1,484	[1]
Proceeds from sale or maturity of securities in special use funds		919	735	[1]
Purchases of securities in special use funds		(1,039)	(804)	[1]
Other - net		41	94	[1]
Net cash used in investing activities		(3,667)	(3,670)	[1]
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt		1,804	689	[1]
Retirements of long-term debt		(942)	(548)	[1]
Net change in commercial paper		1,277	2,041	[1]
Proceeds from other short-term debt		0	200	[1]
Repayments of other short-term debt		(250)	0	[1]
Issuances of common stock - net		7	7	[1]
Dividends		(523)	(460)	[1]
Other - net		(62)	(246)	[1]
Net cash provided by (used in) financing activities		1,311	1,683	[1]
Effects of currency translation on cash, cash equivalents and restricted cash		(9)	0	[1]
Net decrease in cash, cash equivalents and restricted cash		(1,075)	(729)	[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		908	800	[1]
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		1,639	972	[1]
Increase in property, plant and equipment - net as a result of cash grants primarily under the Recovery Act		0	(147)	[1]
FPL [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	[3]	484	445	[4]
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		545	273	[4]
Nuclear fuel and other amortization		40	49	[4]
Deferred income taxes		265	275	[4]
Cost recovery clauses and franchise fees		(47)	16	[4]
Acquisition of purchased power agreement		(52)	(259)	[4]
Recoverable storm-related costs		0	(90)	[4]
Other - net		(8)	137	[4]
Changes in operating assets and liabilities:
Current assets		(51)	29	[4]
Noncurrent assets		(20)	(145)	[4]
Current liabilities		(512)	81	[4]
Noncurrent liabilities		(56)	(42)	[4]
Net cash provided by operating activities		588	769	[4]
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(1,166)	(1,687)	[4]
Nuclear fuel purchases		(37)	(79)	[4]
Proceeds from sale or maturity of securities in special use funds		430	493	[4]
Purchases of securities in special use funds		(534)	(519)	[4]
Other - net		19	65	[4]
Net cash used in investing activities		(1,288)	(1,727)	[4]
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt		1,000	200	[4]
Retirements of long-term debt		(787)	(35)	[4]
Net change in commercial paper		(126)	956	[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		(19)	11	[4]
Net cash provided by (used in) financing activities		668	932	[4]
Net decrease in cash, cash equivalents and restricted cash		(32)	(26)	[4]
Cash, cash equivalents and restricted cash at beginning of period		174	153	[4]
Cash, cash equivalents and restricted cash at end of period		142	127	[4]
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		$ 641	$ 435	[4]

[1] Prior period amounts have been retrospectively adjusted as discussed in Note 10 - 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 10 - Restricted Cash.