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v3.20.2

Cash flows (Details) - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019
Supplemental disclosures of cash flow information |  |
Interest paid to non-affiliates, net of amounts capitalized | $ 64 | $ 75
Income taxes paid (including refundable credits) | 23 | 55
Income taxes refunded (including refundable credits) | 0 | 4
Supplemental disclosures of noncash activities |  |
Unpaid invoices and accruals for capital expenditures, balance, end of period (investing) | 32 | 37
Reduction of long-term debt from funds previously transferred for repayment (financing) | 82 | 0
Right-of-use assets obtained in exchange for operating lease obligations (investing) | 22 | 5
Common stock issued (gross) for director and executive/management compensation (financing) | 16 | 5
Real estate transferred from property, plant and equipment to other assets held-for-sale (investing) | 0 | 9
Obligations to fund low income housing investments (investing) | 10 | 6
Hawaiian Electric Company, Inc. and Subsidiaries |  |
Supplemental disclosures of cash flow information |  |
Interest paid to non-affiliates, net of amounts capitalized | 39 | 45
Income taxes paid (including refundable credits) | 29 | 55
Income taxes refunded (including refundable credits) | 0 | 4
Supplemental disclosures of noncash activities |  |
Estimated fair value of noncash contributions in aid of construction (investing) | 9 | 7
Unpaid invoices and accruals for capital expenditures, balance, end of period (investing) | 28 | 34
Reduction of long-term debt from funds previously transferred for repayment (financing) | 82 | 0
Right-of-use assets obtained in exchange for operating lease obligations (investing) | $ 16 | $ 1

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