Consolidated Statements of Comprehensive Income - HECO - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income for common stock	$ 241,138	$ 246,166	$ 197,824
Retirement benefit plans:
Net gains (losses) arising during the period, net of taxes of $64,925, $52,554 and $(21,868) for 2022, 2021 and 2020, respectively	188,020	153,121	(60,529)
Adjustment for amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, net of taxes of $6,550, $6,750 and $7,474 for 2022, 2021 and 2020, respectively	19,659	19,253	23,689
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $(69,345), $(59,429), and $13,825 for 2022, 2021 and 2020, respectively	(199,936)	(171,345)	39,860
Other comprehensive income (loss), net of taxes	(283,495)	(51,269)	18,775
Comprehensive income attributable to Hawaiian Electric Industries, Inc.	(42,357)	194,897	216,599
Hawaiian Electric Company, Inc. and Subsidiaries
Net income for common stock	188,929	177,642	169,340
Retirement benefit plans:
Net gains (losses) arising during the period, net of taxes of $64,925, $52,554 and $(21,868) for 2022, 2021 and 2020, respectively	187,193	151,523	(63,050)
Adjustment for amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, net of taxes of $6,550, $6,750 and $7,474 for 2022, 2021 and 2020, respectively	18,884	19,461	21,550
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $(69,345), $(59,429), and $13,825 for 2022, 2021 and 2020, respectively	(199,936)	(171,345)	39,860
Other comprehensive income (loss), net of taxes	6,141	(361)	(1,640)
Comprehensive income attributable to Hawaiian Electric Industries, Inc.	$ 195,070	$ 177,281	$ 167,700