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Cash flows | 3 Months Ended
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Mar. 31, 2018
Supplemental Cash Flow Elements [Abstract] |
Cash flows | Cash flows
Three months ended March 31 |  | 2018 |  | 2017
(in millions) |  |  |  |
Supplemental disclosures of cash flow information |  |  |  |  |  |
HEI consolidated |  |  |  |
Interest paid to non-affiliates |  | $ | 19 |  |  | $ | 19 |
Income taxes paid (including refundable credits) |  | 3 |  |  | 4 |
Hawaiian Electric consolidated |  |  |  |
Interest paid to non-affiliates |  | 12 |  |  | 13 |
Income taxes paid (including refundable credits) |  | 5 |  |  | 2 |
Supplemental disclosures of noncash activities |  |  |  |  |  |
HEI consolidated |  |  |  |
Property, plant and equipment |  |  |  |
Estimated fair value of noncash contributions in aid of construction (investing) |  | 3 |  |  | — |
Unpaid invoices and accruals for capital expenditures, balance, end of period (investing) |  | 48 |  |  | 27 |
Loans transferred from held for investment to held for sale (investing) |  | 1 |  |  | 9 |
Common stock issued (gross) for director and executive/management compensation (financing)1 |  | 3 |  |  | 9 |
Transfer of retail repurchase agreements to deposit liabilities (financing) |  | 102 |  |  | — |
Hawaiian Electric consolidated |  |  |  |
Electric utility property, plant and equipment |  |  |  |
Estimated fair value of noncash contributions in aid of construction (investing) |  | 3 |  |  | — |
Unpaid invoices and accruals for capital expenditures, balance, end of period (investing) |  | 29 |  |  | 26 |
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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- Definition The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as 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 in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 + Details
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- References No definition available. + Details
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