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Cash flows (Tables) | 12 Months Ended
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Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract] |
Schedule of supplemental disclosures of cash and noncash activity |
Years ended December 31 | 2018 |  |  | 2017 |  |  | 2016 |
(in millions) |  |  |  |  |
Supplemental disclosures of cash flow information |  |  |  |  |  |  |  |
HEI consolidated |  |  |  |  |
Interest paid to non-affiliates, net of amounts capitalized | $ | 102 |  |  | $ | 83 |  |  | $ | 84 |
Income taxes paid (including refundable credits) | 72 |  |  | 55 |  |  | 55 |
Income taxes refunded (including refundable credits) | 34 |  |  | 1 |  |  | 45 |
Hawaiian Electric consolidated |  |  |  |  |
Interest paid to non-affiliates, net of amounts capitalized | 73 |  |  | 63 |  |  | 62 |
Income taxes paid (including refundable credits) | 64 |  |  | 26 |  |  | 1 |
Income taxes refunded (including refundable credits) | 31 |  |  | — |  |  | 20 |
Supplemental disclosures of noncash activities |  |  |  |  |  |  |  |
HEI consolidated |  |  |  |  |
Property, plant and equipment |  |  |  |  |
Unpaid invoices and accruals for capital expenditures, |  |  |  |  |
balance, end of period (investing) | 59 |  |  | 38 |  |  | 84 |
Common stock dividends reinvested in HEI common stock (financing) 1 | — |  |  | — |  |  | 17 |
Loans transferred from held for investment to held for sale (investing) | 1 |  |  | 41 |  |  | 24 |
Real estate acquired in settlement of loans (investing) | — |  |  | — |  |  | 1 |
Real estate transferred from property, plant and equipment to other assets held-for-sale (investing) | — |  |  | — |  |  | 1 |
Common stock issued (gross) for director and executive/management compensation (financing)2 | 4 |  |  | 11 |  |  | 7 |
Obligations to fund low income housing investments, net (investing) | 12 |  |  | 13 |  |  | — |
Transfer of retail repurchase agreements to deposit liabilities (financing) | 102 |  |  | — |  |  | — |
Hawaiian Electric consolidated |  |  |  |  |
Electric utility property, plant and equipment |  |  |  |  |  |  |  |
Unpaid invoices and accruals for capital expenditures, |  |  |  |  |
balance, end of period (investing) | 44 |  |  | 38 |  |  | 84 |
HEI Consolidated and Hawaiian Electric consolidated |  |  |  |  |
Electric utility property, plant and equipment |  |  |  |  |
Estimated fair value of noncash contributions in aid of construction (investing) | 14 |  |  | 18 |  |  | 28 |
Acquisition of Hawaiian Telcom’s interest in joint poles (investing) | 48 |  |  | — |  |  | — |
1 | The amounts shown represents common stock dividends reinvested in HEI common stock under the HEI DRIP in noncash transactions.
2 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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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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- References No definition available. + Details
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