Cash flows (Tables)

12 Months Ended

Dec. 31, 2020

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental disclosures of cash and noncash activity

Years ended December 31	2020		2019		2018
(in millions)
Supplemental disclosures of cash flow information
HEI consolidated
Interest paid to non-affiliates, net of amounts capitalized	$	98	$	107	$	102
Income taxes paid (including refundable credits)	32		56		72
Income taxes refunded (including refundable credits)	3		4		34
Hawaiian Electric consolidated
Interest paid to non-affiliates, net of amounts capitalized	65		68		73
Income taxes paid (including refundable credits)	41		55		64
Income taxes refunded (including refundable credits)	3		4		31
Supplemental disclosures of noncash activities
HEI consolidated
Unpaid invoices and accruals for capital expenditures, balance, end of period (investing)	44		64		59
Right-of-use assets obtained in exchange for operating lease obligations (investing)	26		7		—
Common stock issued (gross) for director and executive/management compensation (financing)1	16		5		4
Obligations to fund low income housing investments, net (investing)	25		11		12
Transfer of retail repurchase agreements to deposit liabilities (financing)	—		—		102
Hawaiian Electric consolidated
Unpaid invoices and accruals for capital expenditures, balance, end of period (investing)	41		62		44
Right-of-use assets obtained in exchange for operating lease obligations (investing)	17		2		—
HEI Consolidated and Hawaiian Electric consolidated
Electric utility property, plant and equipment
Estimated fair value of noncash contributions in aid of construction (investing)	10		9		14
Acquisition of Hawaiian Telcom’s interest in joint poles (investing)	—		—		48
Reduction of long-term debt from funds previously transferred for repayment (financing)	82		—		—

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