CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
OPERATING REVENUES		$ 16,727	$ 17,173	[1]	$ 16,138	[1]
OPERATING EXPENSES (INCOME)
Fuel, purchased power and interchange		3,732	4,071	[1]	3,992	[1]
Other operations and maintenance		3,330	3,458	[1]	3,529	[1]
Storm restoration costs		3	1,255	[1]	0	[1]
Impairment charges		11	446	[1],[2]	7	[1],[2]
Merger-related		32	69	[1]	135	[1]
Depreciation and amortization		3,911	2,357	[1]	3,120	[1]
Losses (gains) on disposal of a business/assets - net		(80)	(1,111)	[1]	(447)	[1]
Taxes other than income taxes and other - net		1,508	1,455	[1]	1,343	[1]
Total operating expenses - net		12,447	12,000	[1]	11,679	[1]
OPERATING INCOME		4,280	5,173	[1]	4,459	[1]
OTHER INCOME (DEDUCTIONS)
Interest expense		(1,498)	(1,558)	[1]	(1,098)	[1]
Benefits associated with differential membership interests - net		0	460	[1],[2]	309	[1],[2]
Equity in earnings of equity method investees		358	141	[1],[2]	148	[1],[2]
Allowance for equity funds used during construction		96	92	[1]	86	[1]
Interest income		51	81	[1]	82	[1]
Gain on NEP deconsolidation		3,927	0	[1],[2]	0	[1],[2]
Gains on disposal of investments and other property - net		111	112	[1]	40	[1]
Change in unrealized gains (losses) on equity securities held in NEER's nuclear decommissioning funds - net		(189)	0	[1]	0	[1]
Revaluation of contingent consideration		0	0	[1]	189	[1]
Other net periodic benefit income		168	151	[1]	144	[1]
Other - net		48	11	[1]	19	[1]
Total other income (deductions) - net		3,072	(510)	[1]	(81)	[1]
Income (loss) before income taxes		7,352	4,663	[1]	4,378	[1]
INCOME TAX EXPENSE (BENEFIT)		1,576	(660)	[1]	1,379	[1]
NET INCOME		5,776	5,323	[1],[2],[3]	2,999	[1],[2],[3]
NET (INCOME) LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS		862	57	[1]	(93)	[1]
NET INCOME ATTRIBUTABLE TO NEE		$ 6,638	$ 5,380	[1]	$ 2,906	[1]
Earnings per share attributable to NEE:
Basic		$ 14.03	$ 11.48	[1]	$ 6.27	[1]
Assuming dilution		$ 13.88	$ 11.39	[1]	$ 6.24	[1]
Weighted-average number of common shares outstanding:
Basic		473.2	468.8	[1]	463.1	[1]
Assuming dilution		477.0	472.5	[1]	465.8	[1]
FPL[Member]
OPERATING REVENUES		$ 11,862	$ 11,972	[4]	$ 10,895	[4]
OPERATING EXPENSES (INCOME)
Fuel, purchased power and interchange		3,250	3,541	[4]	3,247	[4]
Other operations and maintenance		1,514	1,554	[4]	1,598	[4]
Storm restoration costs		3	1,255	[4]	0	[4]
Depreciation and amortization		2,633	940	[4]	1,700	[4]
Taxes other than income taxes and other - net		1,308	1,292	[4]	1,189	[4]
Total operating expenses - net		8,708	8,582	[4]	7,734	[4]
OPERATING INCOME		3,154	3,390	[4]	3,161	[4]
OTHER INCOME (DEDUCTIONS)
Interest expense		(541)	(481)	[4]	(459)	[4]
Allowance for equity funds used during construction		90	79	[4]	74	[4]
Other - net		7	(2)	[4]	2	[4]
Total other income (deductions) - net		(444)	(404)	[4]	(383)	[4]
Income (loss) before income taxes		2,710	2,986	[4]	2,778	[4]
INCOME TAX EXPENSE (BENEFIT)		539	1,106	[4]	1,051	[4]
NET INCOME	[5]	$ 2,171	$ 1,880	[4],[6]	$ 1,727	[4],[6]

[1] Amounts have been retrospectively adjusted as discussed in Note 14 and Note 3 - Amendments to Presentation of Retirement Benefits.

[2] Amounts have been retrospectively adjusted as discussed in Note 14.

[3] Amounts have been retrospectively adjusted as discussed in Note 14.

[4] Amounts have been retrospectively adjusted as discussed in Note 14.

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

[6] Amounts have been retrospectively adjusted as discussed in Note 14.