Equitization of Long-Term Debt For Deficit Held by Noncontrolling Interest

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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DEBT AND CREDIT FACILITIES - LONG-TERM DEBT (Details) - USD ($)		1 Months Ended			6 Months Ended
	Mar. 30, 2020	Jun. 30, 2020	Apr. 30, 2020	Jan. 31, 2020	Jun. 30, 2020
Debt Instrument [Line Items]
Equitization of long-term debt for deficit held by NCI					$ 22,000,000
Southern California Gas Company [Member] \| First Mortgage Bonds, Due June 2050 [Member]
Debt Instrument [Line Items]
Stated rate of debt (as a percent)				2.55%
Bonds [Member] \| San Diego Gas and Electric Company [Member] \| First Mortgage Bonds, Due June 2050 [Member]
Debt Instrument [Line Items]
Debt amount			$ 400,000,000
Stated rate of debt (as a percent)			3.32%
Net proceeds of debt			$ 395,000,000
Debt issuance costs			5,000,000
Repayments of lines of credit			200,000,000
Bonds [Member] \| Southern California Gas Company [Member] \| First Mortgage Bonds, Due June 2050 [Member]
Debt Instrument [Line Items]
Debt amount				$ 650,000,000
Net proceeds of debt				643,000,000
Debt issuance costs				$ 7,000,000
Japan International Cooperation Agency [Member] \| Sempra Mexico [Member] \| IEnova Loan Agreement [Member]
Debt Instrument [Line Items]
Net proceeds of debt			98,000,000
Debt issuance costs			2,000,000
Proceeds from debt issuance			$ 100,000,000
Fixed interest rate (as a percent)			2.38%
U.S. International Development Finance Corporation [Member] \| Sempra Mexico [Member] \| IEnova Loan Agreement [Member]
Debt Instrument [Line Items]
Net proceeds of debt		$ 236,000,000
Debt issuance costs		5,000,000			$ 5,000,000
Proceeds from debt issuance		$ 241,000,000
Fixed interest rate (as a percent)		2.90%			2.90%
Liberty Gas Storage, LLC [Member] \| Sempra LNG [Member]
Debt Instrument [Line Items]
Equitization of long-term debt for deficit held by NCI	$ 22,000,000
LIBOR [Member] \| Japan International Cooperation Agency [Member] \| Sempra Mexico [Member] \| IEnova Loan Agreement [Member]
Debt Instrument [Line Items]
Spread on variable rate (as a percent)			1.50%