Amount of allowed equity return on the true-up balance that was recognized in the period

No definition available.

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- Definition

Estimated costs to restore electric delivery system and natural gas distribution facilities damaged during Hurricane Harvey.

+ References

No definition available.

+ Details

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- Definition

Represents the estimated total storm restoration costs covered by insurance.

+ References

No definition available.

+ Details

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- Definition

Represents the balance of the allowed return on equity that has been deferred and recorded on the balance sheet

+ References

No definition available.

+ Details

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- Definition

Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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- Definition

Period end amount of construction work in progress in public utility.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 340
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382

+ Details

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Balance Type:	debit
Period Type:	instant

- Details

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Regulatory Accounting (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Regulatory Accounting (Details) - USD ($) $ in Millions	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Amount of allowed equity return on the true-up balance that has not been recognized	$ 299		$ 299
Amount of allowed equity return on the true-up balance that was recognized in the period	13	$ 22	30	$ 52
Recorded increase in regulatory assets	1,663		1,663		$ 1,793
Hurricane Harvey [Member]
Estimated restoration costs covered by insurance	35		35
Recorded increase in property, plant and equipment	4		4
Recorded increase in regulatory assets	73		73
Recorded insurance receivables	23		23
Hurricane Harvey [Member] \| Minimum [Member]
Estimated costs to restore damaged facilities	110		110
Hurricane Harvey [Member] \| Maximum [Member]
Estimated costs to restore damaged facilities	$ 120		$ 120