Condensed Consolidated Statements of Comprehensive Income (unaudited) - HECO - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Net income for common stock	$ 54,610	$ 54,721	$ 52,541	$ 69,167	$ 109,331	$ 121,708
Retirement benefit plans:
Adjustment for amortization of prior service credit and net losses (gains) recognized during the period in net periodic benefit cost, net of taxes of $(163), $(2), $(326) and $1,516, respectively	(357)		122		(714)	4,623
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $148, $19, $295 and $(1,481), respectively	426		56		851	(4,269)
Other comprehensive income (loss), net of taxes	(7,609)	20,488	(87,840)	(117,159)	12,879	(204,999)
Comprehensive income (loss) attributable to Hawaiian Electric Industries, Inc.	47,001		(35,299)		122,210	(83,291)
Hawaiian Electric Company, Inc. and Subsidiaries
Net income for common stock	45,299	47,009	44,135	46,409	92,308	90,544
Retirement benefit plans:
Adjustment for amortization of prior service credit and net losses (gains) recognized during the period in net periodic benefit cost, net of taxes of $(163), $(2), $(326) and $1,516, respectively	(470)		(5)		(940)	4,371
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $148, $19, $295 and $(1,481), respectively	426		56		851	(4,269)
Other comprehensive income (loss), net of taxes	(44)	$ (45)	51	$ 51	(89)	102
Comprehensive income (loss) attributable to Hawaiian Electric Industries, Inc.	$ 45,255		$ 44,186		$ 92,219	$ 90,646