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Cash flows (Tables) | 3 Months Ended
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Mar. 31, 2017
Supplemental Cash Flow Elements [Abstract] |
Schedule of supplemental disclosures of cash and noncash activity |
Three months ended March 31 |  | 2017 |  | 2016
(in millions) |  |  |  |
Supplemental disclosures of cash flow information |  |  |  |  |  |
HEI consolidated |  |  |  |
Interest paid to non-affiliates |  | $ | 19 |  |  | $ | 20 |
Income taxes paid (including refundable credits) |  | 4 |  |  | 1 |
Income taxes refunded (including refundable credits) |  | — |  |  | 45 |
Hawaiian Electric consolidated |  |  |  |
Interest paid to non-affiliates |  | 13 |  |  | 12 |
Income taxes paid (including refundable credits) |  | 2 |  |  | — |
Income taxes refunded (including refundable credits) |  | — |  |  | 20 |
Supplemental disclosures of noncash activities |  |  |  |  |  |
HEI consolidated |  |  |  |
Common stock dividends reinvested in HEI common stock (financing)1 |  | — |  |  | 6 |
Loans transferred from held for investment to held for sale (investing) |  | 9 |  |  | — |
Common stock issued (gross) for director and executive/management compensation (financing)2 |  | 9 |  |  | 6 |
Obligations to fund low income housing investments (operating) |  | 1 |  |  | — |
HEI consolidated and Hawaiian Electric consolidated |  |  |  |
Electric utility property, plant and equipment |  |  |  |
AFUDC-equity (operating) |  | 2 |  |  | 2 |
Estimated fair value of noncash contributions in aid of construction (investing) |  | — |  |  | 1 |
Change in unpaid invoices and accruals (investing) |  | (52 | ) |  | (48 | )
1 The amounts shown represent common stock dividends reinvested in HEI common stock under the HEI Dividend Reinvestment and Stock Purchase Plan (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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