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.

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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.

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No definition available.

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- Definition

Klamath Relicensing and Settlement Costs

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No definition available.

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- Definition

Public Utilities Property Plant & Equipment, Number of Generating Facilities

+ References

No definition available.

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- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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Commitments and Contingencies – Hydroelectric (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Hydroelectric [Line Items]
Operating Leases, Rent Expense	$ 156,000,000	$ 156,000,000	$ 146,000,000
PacifiCorp [Member]
Hydroelectric [Line Items]
Capital expenditures required by hydroelectric licenses	239,000,000
PacifiCorp [Member] \| Klamath Hydroelectric System [Member]
Hydroelectric [Line Items]
Dam removal cost limit	200,000,000
PacifiCorp [Member] \| Klamath Hydroelectric System [Member] \| OREGON
Hydroelectric [Line Items]
Dam removal cost limit	184,000,000
PacifiCorp [Member] \| Klamath Hydroelectric System [Member] \| CALIFORNIA
Hydroelectric [Line Items]
Dam removal cost limit	16,000,000
Additional dam removal costs, California bond measure	250,000,000
PacifiCorp [Member] \| Klamath Hydroelectric System [Member] \| VARIOUS [Domain]
Hydroelectric [Line Items]
Klamath Relicensing and Settlement Costs	55,000,000
PacifiCorp [Member]
Hydroelectric [Line Items]
Capital expenditures required by hydroelectric licenses	239,000,000
PacifiCorp [Member] \| Klamath Hydroelectric System [Member]
Hydroelectric [Line Items]
Dam removal cost limit	200,000,000
Public Utilities Property Plant & Equipment, Number of Generating Facilities	4
PacifiCorp [Member] \| Klamath Hydroelectric System [Member] \| OREGON
Hydroelectric [Line Items]
Dam removal cost limit	184,000,000
PacifiCorp [Member] \| Klamath Hydroelectric System [Member] \| CALIFORNIA
Hydroelectric [Line Items]
Dam removal cost limit	16,000,000
Additional dam removal costs, California bond measure	$ 250,000,000