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Cash flows (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2015 | Jun. 30, 2014
Supplemental disclosures of cash flow information |  |
Interest paid | $ 41 | $ 44
Income taxes paid | 35 | 22
Income taxes refunded | 55 | 24
Supplemental disclosures of noncash activities |  |
Increases in common stock related to director and officer compensatory plans (financing) | 0 | 2
Real estate acquired in settlement of loans (investing) | 0 | 2
Real estate transferred from property, plant and equipment to other assets held-for-sale (investing) | 5 | 0
Obligations to fund low income housing investments (operating) | 0 | 8
Hawaiian Electric Company, Inc. and Subsidiaries |  |
Supplemental disclosures of cash flow information |  |
Interest paid | 30 | 31
Income taxes paid | 9 | 6
Income taxes refunded | 12 | 8
Supplemental disclosures of noncash activities |  |
Additions to electric utility property, plant and equipment - unpaid invoices and other (investing) | $ 53 | $ 28

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- Definition The amount of real estate that the entity acquired in settlement of loans in noncash (or part noncash) transactions. Noncash is defined as an information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments during the period. + References No definition available. + Details
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- Definition Amount of expense for Affordable Housing Program (AHP) assessments required by the Federal Home Loan Bank Act of 1932. + References No definition available. + Details
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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585 + Details
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