Condensed Consolidated Statements of Comprehensive Income (unaudited) - HECO - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Net income for common stock	$ 52,541	$ 69,167	$ 63,872	$ 64,358	$ 121,708	$ 128,230
Retirement benefit plans:
Adjustment for amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, net of taxes of $(2), $2,028, $1,516 and $4,055, respectively	122		6,008		4,623	12,018
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $19, $(2,016), $(1,481) and $(4,031), respectively	56		(5,811)		(4,269)	(11,622)
Other comprehensive income (loss), net of taxes	(87,840)	(117,159)	16,472	(44,016)	(204,999)	(27,544)
Comprehensive income (loss) attributable to Hawaiian Electric Industries, Inc.	(35,299)		80,344		(83,291)	100,686
Hawaiian Electric Company, Inc. and Subsidiaries
Net income for common stock	44,135	46,409	41,901	43,358	90,544	85,259
Retirement benefit plans:
Adjustment for amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, net of taxes of $(2), $2,028, $1,516 and $4,055, respectively	(5)		5,846		4,371	11,691
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $19, $(2,016), $(1,481) and $(4,031), respectively	56		(5,811)		(4,269)	(11,622)
Other comprehensive income (loss), net of taxes	51	$ 51	35	$ 34	102	69
Comprehensive income (loss) attributable to Hawaiian Electric Industries, Inc.	$ 44,186		$ 41,936		$ 90,646	$ 85,328