Public Utilities, Average Price Increase (Decrease), Amount

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- Definition

Public Utilities, Gain on Sale

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Reduction in revenue requirement

+ References

No definition available.

+ Details

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- Definition

Regulatory stipulation that limits the amount of lost revenues that can be requested.

+ References

No definition available.

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- Definition

Discloses the amount of any reduction to the carrying amounts of regulated assets that result from impairment (for example, rate actions of a regulator).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 340
-Section 35
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6066304&loc=d3e44026-110379

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- Definition

Current regulatory liabilities generally represent obligations to make refunds to customers for various reasons including overpayment.

+ References

No definition available.

+ Details

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- Definition

Amount of public utility's approved rate increase (decrease) by regulatory agency.

+ 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

The amount of disallowed costs for rate making purposes for recently completed plants in regulated industries when this becomes probable. Such charges do not meet the requirements of an extraordinary item.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 360
-Section 35
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6500292&loc=d3e45799-110387

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 360
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 10.E)
-URI http://asc.fasb.org/extlink&oid=6500719&loc=d3e660019-123033

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 10
-Section E

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- Definition

Amount of public utility's amended requested rate increase (decrease) with regulatory agency.

+ References

No definition available.

+ Details

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- Definition

Amount of public utility's requested rate increase (decrease) with regulatory agency.

+ References

No definition available.

+ Details

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Regulatory Matters - NPC - Other (Details) - Nevada Power Company [Member] - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Aug. 31, 2015	Dec. 31, 2014	Dec. 31, 2015
Energy Efficiency Rate Case [Member] \| Public Utilities Commission, Nevada [Member]
Public Utilities, General Disclosures [Line Items]
Public Utilities, Reduction in revenue requirement	$ 5
Customer Refund Liability, Current		$ 11	$ 18
General Rate Case [Member] \| Public Utilities Commission, Nevada [Member]
Public Utilities, General Disclosures [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 38
Public Utilities, Average Price Increase (Decrease), Amount		2.00%
Public Utilities, Property, Plant and Equipment, Amount of Disallowed Costs for Recently Completed Plant		$ 15
Amount of Impairment to Carrying Amount of Regulatory Assets		5
Public Utilities, Gain on Sale		5
2013 FERC Transmission Rate Case [Member] \| Federal Energy Regulatory Commission [Member]
Public Utilities, General Disclosures [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amended, Amount		17
Public Utilities, Approved Rate Increase (Decrease), Amount		$ 4
NV Energy Transaction [Member]
Public Utilities, General Disclosures [Line Items]
Regulatory Stipulation, Lost Revenue Limit		50.00%