The additional amount for dam removal costs expected to be raised through a California bond measure.

No definition available.

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- Definition

Estimated capital expenditures related to hydroelectric facilities required by certain hydroelectric licenses over the next 10 years.

+ References

No definition available.

+ Details

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- Definition

The maximum amount of dam removal costs.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Klamath Relicensing and Settlement Costs

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(12))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(11))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Details

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- Details

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- Details

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- Details

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Commitments and Contingencies - PacifiCorp - Hydroelectric (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Hydroelectric [Line Items]
Assets	$ 85,440	$ 83,618	$ 81,816
PacifiCorp [Member]
Hydroelectric [Line Items]
Assets	22,394	$ 22,367
Capital expenditures required by hydroelectric licenses	227
PacifiCorp [Member] \| Klamath Hydroelectric System [Member]
Hydroelectric [Line Items]
Dam removal cost limit	200
PacifiCorp [Member] \| Klamath Hydroelectric System [Member] \| OREGON
Hydroelectric [Line Items]
Dam removal cost limit	184
PacifiCorp [Member] \| Klamath Hydroelectric System [Member] \| CALIFORNIA
Hydroelectric [Line Items]
Dam removal cost limit	16
Additional dam removal costs, California bond measure	250
PacifiCorp [Member] \| Klamath Hydroelectric System [Member] \| VARIOUS [Domain]
Hydroelectric [Line Items]
Klamath Relicensing and Settlement Costs	$ 68