CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income		$ 1,745	$ 4,521	[1],[2]
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		1,952	1,688	[1]
Nuclear fuel and other amortization		172	131	[1]
Unrealized gains on marked to market derivative contracts – net		(16)	(1)	[1]
Foreign currency transaction losses		12	11	[1]
Deferred income taxes		102	1,391	[1]
Cost recovery clauses and franchise fees		(103)	(49)	[1]
Equity in earnings of equity method investees		(10)	(249)	[1],[3]
Distributions of earnings from equity method investees		233	173	[1]
Gains on disposal of businesses, assets and investments – net		(411)	(95)	[1]
Gain on NEP deconsolidation		0	(3,927)	[1],[3]
Other - net		(111)	(87)	[1]
Changes in operating assets and liabilities:
Current assets		(123)	(114)	[1]
Noncurrent assets		(157)	(6)	[1]
Current liabilities		(20)	(425)	[1]
Noncurrent liabilities		16	(26)	[1]
Net cash provided by operating activities		3,281	2,936	[1]
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(2,302)	(2,414)	[1]
Acquisition and capital expenditures of Gulf Power		(4,704)	0	[1]
Independent power and other investments of NEER		(2,509)	(3,220)	[1]
Nuclear fuel purchases		(169)	(188)	[1]
Other capital expenditures and other investments		(216)	(101)	[1]
Sale of independent power and other investments of NEER		995	311	[1]
Proceeds from sale or maturity of securities in special use funds		2,059	1,788	[1]
Purchases of securities in special use funds		(2,105)	(1,992)	[1]
Distributions from equity method investees of independent power investments		0	633	[1]
Other - net		60	(172)	[1]
Net cash used in investing activities		(8,891)	(5,355)	[1]
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt		7,554	2,875	[1]
Retirements of long-term debt		(1,876)	(1,214)	[1]
Net change in commercial paper		1,632	705	[1]
Proceeds from other short-term debt		0	200	[1]
Repayments of other short-term debt		(4,600)	(250)	[1]
Payments from related parties under a cash sweep and credit support agreement – net		671	50	[1]
Issuances of common stock - net		26	11	[1]
Dividends		(1,197)	(1,047)	[1]
Other - net		(158)	(143)	[1]
Net cash provided by (used in) financing activities		2,052	1,187	[1]
Effects of currency translation on cash, cash equivalents and restricted cash		8	(15)	[1]
Net increase (decrease) in cash, cash equivalents and restricted cash		(3,550)	(1,247)	[1]
Cash, cash equivalents and restricted cash at beginning of period		5,253	1,983	[1]
Cash, cash equivalents and restricted cash at end of period		1,703	736	[1]
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		1,514	1,772	[1]
FPL [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net Income	[4]	1,251	1,110	[5],[6]
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		1,152	1,059	[6]
Nuclear fuel and other amortization		85	77	[6]
Deferred income taxes		70	268	[6]
Cost recovery clauses and franchise fees		(72)	(49)	[6]
Other - net		25	(48)	[6]
Changes in operating assets and liabilities:
Current assets		(259)	(139)	[6]
Noncurrent assets		(37)	(15)	[6]
Current liabilities		249	(326)	[6]
Noncurrent liabilities		(8)	(55)	[6]
Net cash provided by operating activities		2,456	1,882	[6]
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures of FPL		(2,302)	(2,414)	[6]
Nuclear fuel purchases		(93)	(90)	[6]
Proceeds from sale or maturity of securities in special use funds		1,276	1,101	[6]
Purchases of securities in special use funds		(1,333)	(1,228)	[6]
Other - net		5	22	[6]
Net cash used in investing activities		(2,447)	(2,609)	[6]
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of long-term debt		1,698	1,594	[6]
Retirements of long-term debt		(49)	(798)	[6]
Net change in commercial paper		(481)	(700)	[6]
Repayments of other short-term debt		0	(250)	[6]
Capital contributions from NEE		250	850	[6]
Dividends		(1,400)	0	[6]
Other - net		(21)	(31)	[6]
Net cash provided by (used in) financing activities		(3)	665	[6]
Net increase (decrease) in cash, cash equivalents and restricted cash		6	(62)	[6]
Cash, cash equivalents and restricted cash at beginning of period		254	174	[6]
Cash, cash equivalents and restricted cash at end of period		260	112	[6]
SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued property additions		$ 461	$ 488	[6]

[1] Amounts have been retrospectively adjusted for an accounting standards update related to leases.

[2] Amounts have been retrospectively adjusted for an accounting standards update related to leases.

[3] Amounts have been retrospectively adjusted for an accounting standards update related to leases.

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

[5] Amounts have been retrospectively adjusted for an accounting standards update related to leases.

[6] Amounts have been retrospectively adjusted for an accounting standards update related to leases.