Loss Contingency, Acceptance Rate of Plaintiffs, Percent

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Loss Contingency Accrual, Net of Tax

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Loss Contingency, Number of Alleged Violations

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Loss Contingency, Percentage of Plaintiffs Represented

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Reserve for Aliso Canyon costs.

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Insurance receivable for Aliso Canyon costs

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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.

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Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.

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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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Amount of loss contingency liability.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Number of plaintiffs that have filed claims pertaining to a loss contingency.

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Number of pending claims pertaining to a loss contingency.

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Amount after accumulated amortization of finite-lived and indefinite-lived intangible assets classified as other.

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Amount of cash inflow for proceeds from settlement of insurance claim, classified as operating activities. Excludes insurance settlement classified as investing activities.

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Period end book value of other property, plant and equipment (PPE) owned (but not classified elsewhere) by the public utility.

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Period end amount of property, plant and equipment (PPE) related to utility transmission owned by public utility.

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COMMITMENTS AND CONTINGENCIES - LEGAL PROCEEDINGS (Details) $ in Millions		1 Months Ended	3 Months Ended	4 Months Ended
	Apr. 29, 2022 lawsuit plaintiff	Nov. 30, 2019 violation	Mar. 31, 2022 USD ($) lawsuit	Jan. 31, 2019 plaintiff	Sep. 26, 2021 USD ($)	Jan. 31, 2021 lawsuit
Loss Contingencies [Line Items]
Liability for legal proceedings			$ 2,167
Number of alleged violations \| violation		324
San Diego Gas and Electric Company
Loss Contingencies [Line Items]
Liability for legal proceedings			13
Southern California Gas Company
Loss Contingencies [Line Items]
Liability for legal proceedings			2,078
Insurance settlements receivable			1,279
Southern California Gas Company \| Aliso Canyon Natural Gas Storage Facility Gas Leak
Loss Contingencies [Line Items]
Liability for legal proceedings			2,053
Estimate of costs			3,314
Net book value of Aliso Canyon facility			894
Reserve for Aliso Canyon costs			2,052
Loss contingency accrual			92
Loss contingency accrual, after tax			66
Receivable related to natural gas leak			360
Insurance proceeds			$ 919
Southern California Gas Company \| Shareholder Derivative Complaint
Loss Contingencies [Line Items]
Number of lawsuits \| lawsuit			4			3
Southern California Gas Company \| Complaints Filed by Firefighters \| Aliso Canyon Natural Gas Storage Facility Gas Leak
Loss Contingencies [Line Items]
Number of plaintiffs \| plaintiff				51
Southern California Gas Company \| Individual Plaintiff Litigation \| Aliso Canyon Natural Gas Storage Facility Gas Leak
Loss Contingencies [Line Items]
Percentage of plaintiffs represented					80.00%
Estimate of costs					$ 1,800
Acceptance rate of plaintiffs (as a percent)					97.00%
Southern California Gas Company \| Property Class Action \| Aliso Canyon Natural Gas Storage Facility Gas Leak
Loss Contingencies [Line Items]
Estimate of costs					$ 40
Sempra Infrastructure \| Guaymas-El Oro Segment, Sonora Pipeline
Loss Contingencies [Line Items]
Net book value of pipeline			$ 429
Sempra Infrastructure \| Regulatory Actions by the Mexican Government
Loss Contingencies [Line Items]
Other intangible assets, net			14
Subsequent Event \| Southern California Gas Company \| Aliso Canyon Natural Gas Storage Facility Gas Leak
Loss Contingencies [Line Items]
Number of lawsuits \| lawsuit	390
Number of plaintiffs \| plaintiff	36,000
Deferred Credits and Other \| Southern California Gas Company \| Aliso Canyon Natural Gas Storage Facility Gas Leak
Loss Contingencies [Line Items]
Reserve for Aliso Canyon costs			$ 4