Cash flows (Tables)

12 Months Ended

Dec. 31, 2016

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental disclosures of cash and noncash activity

Years ended December 31	2016		2015		2014
(in millions)
Supplemental disclosures of cash flow information
HEI consolidated
Interest paid to non-affiliates	$	84	$	83	$	84
Income taxes paid	55		75		47
Income taxes refunded	45		55		24
Hawaiian Electric consolidated
Interest paid to non-affiliates	62		61		61
Income taxes paid	1		13		6
Income taxes refunded	20		12		8
Supplemental disclosures of noncash activities
HEI consolidated
Property, plant and equipment–change in unpaid invoices and accruals (investing)	14		5		43
Common stock dividends reinvested in HEI common stock (financing) 1	17		—		—
Loans transferred from held for investment to held for sale (investing)	24		—		—
Real estate acquired in settlement of loans (investing)	1		1		3
Real estate transferred from property, plant and equipment to other assets held-for-sale (investing)	1		5		—
Obligations to fund low income housing investments, net (operating)	14		4		14
Hawaiian Electric consolidated
Electric utility property, plant and equipment
AFUDC-equity (operating)	8		7		7
Estimated fair value of noncash contributions in aid of construction (investing)	28		3		3
Change in unpaid invoices and accruals (investing)	14		5		40
Refinancing of long-term debt (financing)	—		47		—

¹  The amounts shown represents common stock dividends reinvested in HEI common stock under the HEI DRIP in noncash transactions.