XML 94 R41.htm IDEA: XBRL DOCUMENT
v3.3.0.814

Related party transactions (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2015
Related Party Transactions [Abstract] |
Schedule of Related Party Transactions | Mr. Timothy Johns, a member of the Hawaiian Electric Board of Directors, is an executive officer of Hawaii Medical Service Association (HMSA). The Company’s HMSA costs and expense (for health insurance premiums, claims plus administration expense and stop-loss insurance coverages) and the Utilities’ HMSA costs and expense (for health insurance premiums) were as follows:
| Three months ended September 30 |  | Nine months ended September 30
(in millions) | 2015 |  | 2014 |  | 2015 |  | 2014
HEI consolidated |  |  |  |  |  |  |
HMSA costs | $ | 8 |  |  | $ | 6 |  |  | $ | 22 |  |  | $ | 18 |
HMSA expense* | 6 |  |  | 4 |  |  | 16 |  |  | 13 |
Hawaiian Electric consolidated |  |  |  |  |  |  |
HMSA costs | 6 |  |  | 5 |  |  | 17 |  |  | 15 |
HMSA expense* | 4 |  |  | 3 |  |  | 11 |  |  | 9 |
* Charged the remaining costs primarily to electric utility plant.

X
- References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates. + References No definition available. + Details
Name: | us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration