Cash flows (Tables)

9 Months Ended

Sep. 30, 2025

Supplemental Cash Flow Elements [Abstract]

Schedule of Supplemental Disclosures of Cash and Noncash Activity

Nine months ended September 30	2025		2024
(in millions)
Supplemental disclosures of cash flow information
HEI consolidated
Activities from continuing operations:
Interest paid to non-affiliates, net of amounts capitalized	$	71	$	84
Interest paid on finance lease obligations	29		23
Income taxes paid (including refundable credits)	28		30
Income taxes refunded (including refundable credits)	4		—
Activities from discontinued operations:
Interest paid to non-affiliates, net of amounts capitalized	—		91
Income taxes paid (including refundable credits)	—		4
Hawaiian Electric consolidated
Interest paid to non-affiliates, net of amounts capitalized	53		59
Interest paid on finance lease obligations	29		23
Income taxes paid (including refundable credits)	39		53
Income taxes refunded (including refundable credits)	5		—
Supplemental disclosures of noncash activities
HEI consolidated
Activities from continuing operations:
Property, plant and equipment:
Unpaid invoices and accruals for capital expenditures, balance, end of period (investing)	66		33
Right-of-use assets obtained in exchange for finance lease obligations (financing)	51		108
Common stock issued (gross) for nonemployee director and executive/management compensation (financing) 1	2		2
Debt assumed by buyer - sale of subsidiaries (financing)	67		—
Activities from discontinued operations:
Loans transferred from held for investment to held for sale (investing)	—		29
Right-of-use assets obtained in exchange for operating lease obligations (investing)	—		4
Common stock issued (gross) for nonemployee director and executive/management compensation (financing) 1	—		1
Hawaiian Electric consolidated
Electric utility property, plant and equipment
Unpaid invoices and accruals for capital expenditures, balance, end of period (investing)	66		33
Right-of-use assets obtained in exchange for finance lease obligations (financing)	51		107
Capital contribution from parent of a membership interest in an unconsolidated affiliate (financing)	287		—
HEI consolidated (continuing operations) and Hawaiian Electric consolidated
Estimated fair value of noncash contributions in aid of construction (investing)	5		9
Reduction of long-term debt from funds previously transferred for repayment (financing)	47		—

1 The amounts shown represent the market value of common stock issued for nonemployee director and executive/management compensation and withheld to satisfy statutory tax liabilities.