Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

Customers accounting for more than 10% of revenue

The Company generated more than 10% of its revenues from the following customers for the years ended December 31, 2020, 2019 and 2018:

	2020		2019		2018
Customer	Conventional	Renewables	Conventional	Renewables	Conventional	Renewables
SCE	18%	16%	21%	19%	20%	20%
PG&E	10%	8%	12%	10%	12%	11%

Segment reporting information

	Year ended December 31, 2020
(In millions)	Conventional Generation		Renewables		Thermal		Corporate (a)		Total
Operating revenues	$	437	$	569	$	193	$	—	$	1,199
Cost of operations	90		147		131		(2)		366
Depreciation, amortization and accretion	132		264		32		—		428
Impairment losses	—		24		—		—		24
General and administrative	—		—		3		31		34
Transaction and integration costs	—		—		—		9		9
Development costs	—		—		5		—		5
Operating income (loss)	215		134		22		(38)		333
Equity in earnings (losses) of unconsolidated affiliates	8		(1)		—		—		7
Impairment loss on investment	—		(8)		—		—		(8)
Gain on sale of unconsolidated affiliates	—		—		—		49		49
Other income, net	1		3		—		—		4
Loss on debt extinguishment	—		(21)		—		(3)		(24)
Interest expense, net	(84)		(216)		(19)		(96)		(415)
Income (loss) before income taxes	140		(109)		3		(88)		(54)
Income tax benefit	—		—		—		8		8
Net Income (Loss)	140		(109)		3		(96)		(62)
Net Income (Loss) Attributable to Clearway Energy, Inc.	$	140	$	3	$	3	$	(121)	$	25
Balance Sheet
Equity investment in affiliates	$	90	$	651	$	—	$	—	$	741
Capital expenditures (b)	12		44		50		—		106
Total Assets	$	2,575	$	7,157	$	627	$	233	$	10,592

(a) Includes eliminations

(b) Includes accruals

	Year ended December 31, 2019
(In millions)	Conventional Generation		Renewables		Thermal		Corporate		Total
Operating revenues	$	346	$	485	$	201	$	—	$	1,032
Cost of operations	60		143		134		—		337
Depreciation, amortization and accretion	103		271		27		—		401
Impairment losses	—		14		19		—		33
General and administrative	—		1		3		25		29
Transaction and integration costs	—		—		—		3		3
Development costs	—		—		5		—		5
Operating income (loss)	183		56		13		(28)		224
Equity in earnings of unconsolidated affiliates	9		74		—		—		83
Other income, net	2		6		—		1		9
Loss on debt extinguishment	—		(1)		—		(15)		(16)
Interest expense, net	(59)		(239)		(18)		(88)		(404)
Income (loss) before income taxes	135		(104)		(5)		(130)		(104)
Income tax benefit	—		—		—		(8)		(8)
Net Income (Loss)	135		(104)		(5)		(122)		(96)
Net Income (Loss) Attributable to Clearway Energy, Inc.	$	135	$	(33)	$	(5)	$	(108)	$	(11)
Balance Sheet
Equity investments in affiliates	$	94	$	1,089	$	—	$	—	$	1,183
Capital expenditures (a)	4		185		34		—		223
Total Assets	$	2,753	$	6,186	$	633	$	128	$	9,700

(a) Includes accruals.

	Year ended December 31, 2018
(In millions)	Conventional Generation		Renewables		Thermal		Corporate		Total
Operating revenues	$	337	$	523	$	193	$	—	$	1,053
Cost of operations	61		139		127		—		327
Depreciation, amortization and accretion	102		211		23		—		336
General and administrative	—		—		1		19		20
Transaction and integration costs	—		—		—		20		20
Development costs	—		—		2		1		3
Operating income (loss)	174		173		40		(40)		347
Equity in earnings of unconsolidated affiliates	11		63		—		—		74
Other income, net	1		4		1		2		8
Loss on debt extinguishment	—		—		—		(7)		(7)
Interest expense, net	(51)		(154)		(12)		(89)		(306)
Income (loss) before income taxes	135		86		29		(134)		116
Income tax expense	—		—		—		62		62
Net Income (Loss)	135		86		29		(196)		54
Net Income (Loss) Attributable to Clearway Energy, Inc.	$	135	$	186	$	29	$	(302)	$	48