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Cash flows (Tables) | 12 Months Ended
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Dec. 31, 2022
Supplemental Cash Flow Elements [Abstract] |
Schedule of supplemental disclosures of cash and noncash activity |
Years ended December 31 | 2022 |  | 2021 |  | 2020
(in millions) |  |  |  |  |
Supplemental disclosures of cash flow information |  |  |  |  |
HEI consolidated |  |  |  |  |
Interest paid to non-affiliates, net of amounts capitalized | $ | 106 |  |  | $ | 98 |  |  | $ | 98 |
Income taxes paid (net of refundable credits) | 41 |  |  | 41 |  |  | 32 |
Income taxes refunded (including refundable credits) | 2 |  |  | 7 |  |  | 3 |
Hawaiian Electric consolidated |  |  |  |  |
Interest paid to non-affiliates, net of amounts capitalized | 69 |  |  | 71 |  |  | 65 |
Income taxes paid (net of refundable credits) | 67 |  |  | 45 |  |  | 41 |
Income taxes refunded (including refundable credits) | — |  |  | 5 |  |  | 3 |
Supplemental disclosures of noncash activities |  |  |  |  |
HEI consolidated |  |  |  |  |
Property, plant and equipment-Unpaid invoices and accruals for capital expenditures, balance, end of period (investing) | 68 |  |  | 48 |  |  | 44 |
Loans transferred from held for investment to held for sale (investing) | — |  |  | 61 |  |  | — |
Real estate transferred from property, plant and equipment to other assets held-for-sale (investing) | — |  |  | 3 |  |  | — |
Right-of-use assets obtained in exchange for operating lease obligations (investing) | 51 |  |  | 44 |  |  | 26 |
Property, plant, equipment and other assets received in exchange for the assumption of debt associated with a business acquisition (investing) | 68 |  |  | — |  |  | — |
Debt, lease liabilities and other liabilities assumed in business acquisition (financing) | 68 |  |  | — |  |  | — |
Common stock issued (gross) for director and executive/management compensation (financing)1 | 10 |  |  | 7 |  |  | 16 |
Obligations to fund low income housing investments, net (investing) | 9 |  |  | 36 |  |  | 25 |
Transfer of securities from available for sale to held to maturities (investing) | 755 |  |  | — |  |  | — |
Hawaiian Electric consolidated |  |  |  |  |
Electric utility property, plant and equipment-Unpaid invoices and accruals for capital expenditures, balance, end of period (investing) | 64 |  |  | 43 |  |  | 41 |
Right-of-use assets obtained in exchange for operating lease obligations (investing) | 44 |  |  | 44 |  |  | 17 |
HEI Consolidated and Hawaiian Electric consolidated |  |  |  |  |
Electric utility property, plant and equipment |  |  |  |  |
Estimated fair value of noncash contributions in aid of construction (investing) | 14 |  |  | 8 |  |  | 10 |
Increase related to an acquisition (investing) | 15 |  |  | — |  |  | — |
Right-of-use assets obtained in exchange for finance lease obligations (financing) | 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.

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