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Cash flows
 12 Months Ended
Dec. 31, 2014
Supplemental Cash Flow Elements [Abstract]  
Cash flows
13 · Cash flows
Years ended December 31
2014

 
2013

 
2012

(in millions)
 
 
 
 
 
Supplemental disclosures of cash flow information
 

 
 

 
 

HEI consolidated
 
 
 
 
 
Interest paid to non-affiliates
$
84

 
$
85

 
$
84

Income taxes paid
47

 
18

 
17

Income taxes refunded
24

 
4

 
31

Hawaiian Electric consolidated
 
 
 
 
 
Interest paid to non-affiliates
61

 
59

 
57

Income taxes paid
6

 
6

 
6

Income taxes refunded
8

 
32

 
9

Supplemental disclosures of noncash activities
 

 
 

 
 

HEI consolidated
 
 
 
 
 
Property, plant and equipment-unpaid invoices and accruals, as revised for 2014 and restated for 2013 and 2012 (1)
43

 
(12
)
 
(8
)
Common stock dividends reinvested in HEI common stock 1
—

 
24

 
24

Loans transferred from held for investment to held for sale
—

 
25

 
—

Real estate acquired in settlement of loans
3

 
4

 
11

Obligations to fund low income housing investments, net
14

 
1

 
—

Hawaiian Electric consolidated
 
 
 
 
 
Electric utility property, plant and equipment
 

 
 

 
 

AFUDC-equity
7

 
6

 
7

Estimated fair value of noncash contributions in aid of construction
3

 
5

 
10

Unpaid invoices and accruals, as revised for 2014 and restated for 2013 and 2012 (1)
40

 
(12
)
 
(8
)
(1) As revised or restated - See Note 1, “Summary of significant accounting policies - Revision and restatements of previously issued financial statements.”

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