Congestion Revenue Rights

No definition available.

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- Definition

Congestion Revenue Rights, Current Year

+ References

No definition available.

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- Definition

Congestion Revenue Rights, Next Twelve Months

+ References

No definition available.

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- Definition

Market electricity forward price inputs.

+ References

No definition available.

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- Definition

Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

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Amount of settlement of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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- Definition

Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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- Definition

Amount of unrealized gain (loss) recognized in income for derivative asset (liability) after deduction of derivative liability (asset), measured at fair value using unobservable input (level 3) and still held.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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Amount of gain (loss) recognized in income from derivative asset (liability) after deduction of derivative liability (asset), measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
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-Publisher FASB
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Amount of issuances of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlements of financial instrument classified as a derivative asset (liability) after deduction of derivative liability, measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value of financial instrument classified as derivative asset (liability) after deduction of derivative liability (asset), measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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FAIR VALUE MEASUREMENTS - RECON OF LEVEL 3 ASSETS (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Sempra LNG [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 0
Realized and unrealized gains	6,000,000
Settlements	(3,000,000)
Ending balance	3,000,000	$ 0
Change in unrealized gains (losses) relating to instruments still held at the end of the period	3,000,000
San Diego Gas and Electric Company [Member] \| Minimum [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Congestion revenue rights, 2019 (price per MWh)			$ (8.57)
Congestion revenue rights, 2020 (price per MWh)		(3.77)
Congestion revenue rights, 2021 (price per MWh)	(1.81)
San Diego Gas and Electric Company [Member] \| Maximum [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Congestion revenue rights, 2019 (price per MWh)			35.21
Congestion revenue rights, 2020 (price per MWh)		6.03
Congestion revenue rights, 2021 (price per MWh)	14.11
San Diego Gas and Electric Company [Member] \| Median [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Congestion revenue rights, 2019 (price per MWh)			(2.94)
Congestion revenue rights, 2020 (price per MWh)		(1.58)
Congestion revenue rights, 2021 (price per MWh)	(0.12)
Level 3 [Member] \| San Diego Gas and Electric Company [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance at beginning of period	28,000,000	179,000,000	(28,000,000)
Realized and unrealized gains (losses)	19,000,000	(184,000,000)	209,000,000
Allocated transmission instruments	6,000,000	6,000,000	10,000,000
Settlements	16,000,000	27,000,000	(12,000,000)
Balance at end of period	69,000,000	28,000,000	179,000,000
Change in unrealized gains (losses) relating to derivative instruments still held at the end of the period	34,000,000	(139,000,000)	$ 183,000,000
Level 3 [Member] \| San Diego Gas and Electric Company [Member] \| Minimum [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Market electricity forward price inputs (price per MWh)	19.60	21.00
Level 3 [Member] \| San Diego Gas and Electric Company [Member] \| Maximum [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Market electricity forward price inputs (price per MWh)	78.10	61.15
Level 3 [Member] \| San Diego Gas and Electric Company [Member] \| Weighted Average [Member]
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Market electricity forward price inputs (price per MWh)	39.71	$ 37.92
Level 3 [Member] \| Sempra LNG [Member] \| Current assets: Other [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Ending balance	7,000,000
Level 3 [Member] \| Sempra LNG [Member] \| Deferred Credits and Other [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Ending balance	$ 4,000,000