COMMITMENTS AND CONTINGENCIES - OTHER COMMITMENTS (Details)	12 Months Ended
Dec. 31, 2020 USD ($)	Dec. 31, 2011 USD ($) MMcf
Sunrise Powerlink Construction [Member] \| SDG&E [Member]
Loss Contingencies [Line Items]
Expected payment	$ 4,000,000
Expected payment, thereafter	$ 279,000,000
Estimated annual escalation	2.00%
Purchase commitment period	49 years
Present value of future payments	$ 121,000,000
Expected payment, due in second year	4,000,000
Expected payment, due in third year	4,000,000
Expected payment, due in fourth year	4,000,000
Expected payment, due in fifth year	$ 4,000,000
Continental Forge [Member] \| Sempra LNG [Member]
Loss Contingencies [Line Items]
Purchase commitment period		18 years
Amount o natural gas to be sold (MMcf per day) \| MMcf		500
Price index		$ 0.02

Amount of Natural Gas to be Sold

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- Definition

Contractual commitment annual escalation percentage.

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No definition available.

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Contractual commitment present value future payments, regulatory asset.

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No definition available.

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- Definition

Long-term Purchase Commitment, Price Index Reduction

+ References

No definition available.

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- Definition

Period covered by the long-term purchase commitment, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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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

Amount of commitment classified as other to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

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- Definition

Amount of commitment classified as other to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

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Amount of commitment classified as other to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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No definition available.

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- Definition

Amount of commitment classified as other to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

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- Definition

Amount of commitment classified as other to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

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- Definition

Amount of commitment classified as other to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

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