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Cash flows (Tables) | 6 Months Ended
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Jun. 30, 2015
Supplemental Cash Flow Elements [Abstract] |
Schedule of supplemental disclosures of cash and noncash activity |
Six months ended June 30 |  | 2015 |  | 2014
(in millions) |  |  |  |
Supplemental disclosures of cash flow information |  |  |  |  |  |
HEI consolidated |  |  |  |
Interest paid to non-affiliates |  | $ | 41 |  |  | $ | 44 |
Income taxes paid |  | 35 |  |  | 22 |
Income taxes refunded |  | 55 |  |  | 24 |
Hawaiian Electric consolidated |  |  |  |
Interest paid to non-affiliates |  | 30 |  |  | 31 |
Income taxes paid |  | 9 |  |  | 6 |
Income taxes refunded |  | 12 |  |  | 8 |
Supplemental disclosures of noncash activities |  |  |  |  |  |
HEI consolidated |  |  |  |
Increases in common stock related to director and officer compensatory plans (financing) |  | — |  |  | 2 |
Real estate acquired in settlement of loans (investing) |  | — |  |  | 2 |
Real estate transferred from property, plant and equipment to other assets held-for-sale (investing) |  | 5 |  |  | — |
Obligations to fund low income housing investments (operating) |  | — |  |  | 8 |
HEI consolidated and Hawaiian Electric consolidated |  |  |  |
Additions to electric utility property, plant and equipment - unpaid invoices and other (investing) |  | 53 |  |  | 28 |

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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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