Summary of Significant Accounting and Reporting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Schedule of Regulatory Assets

NEE's and FPL's regulatory assets and liabilities are as follows:

	NEE				FPL
	December 31,				December 31,
	2018		2017		2018		2017
	(millions)
Regulatory assets:
Current:
Acquisition of purchased power agreements	$	165	$	165	$	165	$	165
Deferred clause and franchise expenses	146		10		$	146	$	10
Other	137		161		136		160
Total	$	448	$	336	$	447	$	335
Noncurrent:
Acquisition of purchased power agreements	$	798	$	963	$	798	$	963
Other	2,492		1,506		2,045		1,286
Total	$	3,290	$	2,469	$	2,843	$	2,249
Regulatory liabilities:
Current:
Deferred clause revenues	$	265	$	296	$	265	$	296
Other	60		50		45		37
Total	$	325	$	346	$	310	$	333
Noncurrent:
Asset retirement obligation regulatory expense difference	$	2,352	$	2,569	$	2,352	$	2,569
Deferred taxes	4,815		4,981		4,736		4,903
Other	1,842		1,215		1,798		1,170
Total	$	9,009	$	8,765	$	8,886	$	8,642

Schedule of Regulatory Liabilities

NEE's and FPL's regulatory assets and liabilities are as follows:

	NEE				FPL
	December 31,				December 31,
	2018		2017		2018		2017
	(millions)
Regulatory assets:
Current:
Acquisition of purchased power agreements	$	165	$	165	$	165	$	165
Deferred clause and franchise expenses	146		10		$	146	$	10
Other	137		161		136		160
Total	$	448	$	336	$	447	$	335
Noncurrent:
Acquisition of purchased power agreements	$	798	$	963	$	798	$	963
Other	2,492		1,506		2,045		1,286
Total	$	3,290	$	2,469	$	2,843	$	2,249
Regulatory liabilities:
Current:
Deferred clause revenues	$	265	$	296	$	265	$	296
Other	60		50		45		37
Total	$	325	$	346	$	310	$	333
Noncurrent:
Asset retirement obligation regulatory expense difference	$	2,352	$	2,569	$	2,352	$	2,569
Deferred taxes	4,815		4,981		4,736		4,903
Other	1,842		1,215		1,798		1,170
Total	$	9,009	$	8,765	$	8,886	$	8,642

Schedule of Goodwill and Other Intangible Assets

NEE's goodwill and other intangible assets are as follows:

	Weighted- Average Useful Lives	December 31,
		2018			2017
	(years)	(millions)
Goodwill (by reporting unit):
FPL segment		$	304		$	11
NEER segment:
Gas infrastructure		487			641
Customer supply		72			72
Generation assets		28			40
Total goodwill		$	891		$	764
Other intangible assets not subject to amortization, primarily land easements		$	135		$	138
Other intangible assets subject to amortization:
Customer relationships associated with gas infrastructure	41	$	—		$	700
Purchased power agreements	21	625			521
Other, primarily transmission and development rights and customer lists	22	34			79
Total		659			1,300
Accumulated amortization		(86		)	(151		)
Total other intangible assets subject to amortization - net		$	573		$	1,149