Debt Instrument, Covenant, Ratio Of Debt To Total Capitalization, Percentage

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Debt Instrument, Increase In Letters Of Credit, Amount

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Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, After Tax

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

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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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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Amount, after accumulated amortization, of debt discount.

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Fixed interest rate related to the interest rate derivative.

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Amount of lessee's undiscounted obligation for lease payment for operating lease 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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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt and lease obligation, classified as noncurrent.

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SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF PARENT - FOOTNOTES (Details)	1 Months Ended		12 Months Ended
	Dec. 31, 2021 USD ($) lender	Nov. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) lender	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Debt Instruments [Abstract]
Total facility	$ 9,535,000,000		$ 9,535,000,000
Letters of credit outstanding	682,000,000		682,000,000
Current portion of long-term debt	(106,000,000)		(106,000,000)	$ (1,540,000,000)	$ (1,526,000,000)
Long-term debt	21,068,000,000		21,068,000,000	21,781,000,000	20,785,000,000
Long term debt maturities after 2026	16,397,000,000		16,397,000,000
Operating leases(1)
Total operating lease commitments	792,000,000		792,000,000
2022	73,000,000		73,000,000
2023	66,000,000		66,000,000
2024	62,000,000		62,000,000
2025	50,000,000		50,000,000
Thereafter	493,000,000		493,000,000
Letter of Credit
Debt Instruments [Abstract]
Long-term debt outstanding	682,000,000		682,000,000
Parent Company
Debt Instruments [Abstract]
Gross long-term debt	6,058,000,000		6,058,000,000	8,258,000,000	10,358,000,000
Current portion of long-term debt	0		0	(850,000,000)	(1,399,000,000)
Unamortized discount on long-term debt	(37,000,000)		(37,000,000)	(32,000,000)	(35,000,000)
Unamortized debt issuance costs	(52,000,000)		(52,000,000)	(59,000,000)	(68,000,000)
Long-term debt	5,969,000,000		5,969,000,000	7,317,000,000	8,856,000,000
Long term debt maturities after 2026	6,100,000,000		6,100,000,000
Operating leases(1)
Total operating lease commitments	279,000,000		279,000,000
2022	11,000,000		11,000,000
2023	12,000,000		12,000,000
2024	12,000,000		12,000,000
2025	12,000,000		12,000,000
Thereafter	$ 220,000,000		$ 220,000,000
Parent Company \| 2.4% Notes February 1, 2020
Debt Instruments [Abstract]
Stated percentage rate	2.40%		2.40%
Gross long-term debt	$ 0		$ 0	0	500,000,000
Parent Company \| 2.4% Notes March 15, 2020
Debt Instruments [Abstract]
Stated percentage rate	2.40%		2.40%
Gross long-term debt	$ 0		$ 0	0	500,000,000
Parent Company \| 2.85% Notes November 15, 2020
Debt Instruments [Abstract]
Stated percentage rate	2.85%		2.85%
Gross long-term debt	$ 0		$ 0	0	400,000,000
Parent Company \| Notes at variable rates (2.50% at December 31, 2019) January 15, 2021(1)
Debt Instruments [Abstract]
Gross long-term debt	$ 0		$ 0	0	700,000,000
Parent Company \| Notes at variable rates (3.069% after floating-to-fixed rate swaps effective 2019) March 15, 2021
Debt Instruments [Abstract]
Fixed interest rate after floating to fixed interest rate swaps	3.069%		3.069%
Gross long-term debt	$ 0		$ 0	850,000,000	850,000,000
Parent Company \| 2.875% Notes October 1, 2022
Debt Instruments [Abstract]
Stated percentage rate	2.875%		2.875%
Gross long-term debt	$ 0		$ 0	500,000,000	500,000,000
Parent Company \| 2.9% Notes February 1, 2023
Debt Instruments [Abstract]
Stated percentage rate	2.90%		2.90%
Gross long-term debt	$ 0		$ 0	500,000,000	500,000,000
Parent Company \| 4.05% Notes December 1, 2023
Debt Instruments [Abstract]
Stated percentage rate	4.05%		4.05%
Gross long-term debt	$ 0		$ 0	500,000,000	500,000,000
Parent Company \| 3.55% Notes June 15, 2024
Debt Instruments [Abstract]
Stated percentage rate	3.55%		3.55%
Gross long-term debt	$ 0		$ 0	500,000,000	500,000,000
Parent Company \| 3.75% Notes November 15, 2025
Debt Instruments [Abstract]
Stated percentage rate	3.75%		3.75%
Gross long-term debt	$ 0		$ 0	350,000,000	350,000,000
Parent Company \| 3.25% Notes June 15, 2027
Debt Instruments [Abstract]
Stated percentage rate	3.25%		3.25%
Gross long-term debt	$ 750,000,000		$ 750,000,000	750,000,000	750,000,000
Parent Company \| 3.4% Notes February 1, 2028
Debt Instruments [Abstract]
Stated percentage rate	3.40%		3.40%
Gross long-term debt	$ 1,000,000,000		$ 1,000,000,000	1,000,000,000	1,000,000,000
Parent Company \| 3.8% Notes February 1, 2038
Debt Instruments [Abstract]
Stated percentage rate	3.80%		3.80%
Gross long-term debt	$ 1,000,000,000		$ 1,000,000,000	1,000,000,000	1,000,000,000
Parent Company \| 6% Notes October 15, 2039
Debt Instruments [Abstract]
Stated percentage rate	6.00%		6.00%
Gross long-term debt	$ 750,000,000		$ 750,000,000	750,000,000	750,000,000
Parent Company \| 4% Notes February 1, 2048
Debt Instruments [Abstract]
Stated percentage rate	4.00%		4.00%
Gross long-term debt	$ 800,000,000		$ 800,000,000	800,000,000	800,000,000
Parent Company \| 4.125% Junior Subordinated Notes April 1, 2052(1)
Debt Instruments [Abstract]
Stated percentage rate	4.125%	4.125%	4.125%
Gross long-term debt	$ 1,000,000,000		$ 1,000,000,000	0	0
Proceeds from issuance of debt		$ 988,000,000
Underwriting discounts and debt issuance costs		12,000,000
Debt amount		1,000,000,000
Repayments of senior notes		$ 2,350,000,000
Parent Company \| 5.75% Junior Subordinated Notes July 1, 2079(1)
Debt Instruments [Abstract]
Stated percentage rate	5.75%		5.75%
Gross long-term debt	$ 758,000,000		$ 758,000,000	758,000,000	$ 758,000,000
Sempra Energy
Debt Instruments [Abstract]
Total facility	3,185,000,000		3,185,000,000
Sempra Energy \| 2.4% Notes February 1, 2020
Debt Instruments [Abstract]
Stated percentage rate					2.40%
Gross long-term debt	0		0	0	$ 500,000,000
Sempra Energy \| 2.4% Notes March 15, 2020
Debt Instruments [Abstract]
Stated percentage rate					2.40%
Gross long-term debt	0		0	0	$ 500,000,000
Sempra Energy \| 2.85% Notes November 15, 2020
Debt Instruments [Abstract]
Stated percentage rate					2.85%
Gross long-term debt	0		0	0	$ 400,000,000
Sempra Energy \| Notes at variable rates (2.50% at December 31, 2019) January 15, 2021(1)
Debt Instruments [Abstract]
Gross long-term debt	0		0	$ 0	700,000,000
Sempra Energy \| Notes at variable rates (3.069% after floating-to-fixed rate swaps effective 2019) March 15, 2021
Debt Instruments [Abstract]
Fixed interest rate after floating to fixed interest rate swaps				3.069%
Gross long-term debt	0		0	$ 850,000,000	850,000,000
Sempra Energy \| 2.875% Notes October 1, 2022
Debt Instruments [Abstract]
Stated percentage rate				2.875%
Gross long-term debt	0		0	$ 500,000,000	500,000,000
Sempra Energy \| 2.9% Notes February 1, 2023
Debt Instruments [Abstract]
Stated percentage rate				2.90%
Gross long-term debt	0		0	$ 500,000,000	500,000,000
Sempra Energy \| 4.05% Notes December 1, 2023
Debt Instruments [Abstract]
Stated percentage rate				4.05%
Gross long-term debt	0		0	$ 500,000,000	500,000,000
Sempra Energy \| 3.55% Notes June 15, 2024
Debt Instruments [Abstract]
Stated percentage rate				3.55%
Gross long-term debt	0		0	$ 500,000,000	500,000,000
Sempra Energy \| 3.75% Notes November 15, 2025
Debt Instruments [Abstract]
Stated percentage rate				3.75%
Gross long-term debt	$ 0		$ 0	$ 350,000,000	350,000,000
Sempra Energy \| 3.25% Notes June 15, 2027
Debt Instruments [Abstract]
Stated percentage rate	3.25%		3.25%
Gross long-term debt	$ 750,000,000		$ 750,000,000	750,000,000	750,000,000
Sempra Energy \| 3.4% Notes February 1, 2028
Debt Instruments [Abstract]
Stated percentage rate	3.40%		3.40%
Gross long-term debt	$ 1,000,000,000		$ 1,000,000,000	1,000,000,000	1,000,000,000
Sempra Energy \| 3.8% Notes February 1, 2038
Debt Instruments [Abstract]
Stated percentage rate	3.80%		3.80%
Gross long-term debt	$ 1,000,000,000		$ 1,000,000,000	1,000,000,000	1,000,000,000
Sempra Energy \| 6% Notes October 15, 2039
Debt Instruments [Abstract]
Stated percentage rate	6.00%		6.00%
Gross long-term debt	$ 750,000,000		$ 750,000,000	750,000,000	750,000,000
Sempra Energy \| 4% Notes February 1, 2048
Debt Instruments [Abstract]
Stated percentage rate	4.00%		4.00%
Gross long-term debt	$ 800,000,000		$ 800,000,000	800,000,000	800,000,000
Sempra Energy \| 5.75% Junior Subordinated Notes July 1, 2079(1)
Debt Instruments [Abstract]
Stated percentage rate	5.75%		5.75%
Gross long-term debt	$ 758,000,000		$ 758,000,000	758,000,000	758,000,000
Sempra Energy \| Senior Unsecured Notes Maturing 2022 Through 2025
Debt Instruments [Abstract]
Underwriting discounts and debt issuance costs	126,000,000		126,000,000
Debt issuance costs (after tax)	92,000,000		92,000,000
Sempra Energy \| Parent Company
Basis of Presentation
Cash dividends received			375,000,000	$ 300,000,000	$ 150,000,000
Debt Instruments [Abstract]
Total facility	4,400,000,000		4,400,000,000
Amount available	$ 3,100,000,000		$ 3,100,000,000
Number of lenders \| lender	23		23
Share of facility held by lenders (as a percent)	6.00%		6.00%
Allowed increase in letters of credit	$ 500,000,000		$ 500,000,000
Letters of credit outstanding	$ 0		$ 0
Ratio of indebtedness to total capitalization (as a percent)	65.00%		65.00%
Sempra Energy \| Parent Company \| Letter of Credit
Debt Instruments [Abstract]
Long-term debt outstanding	$ 200,000,000		$ 200,000,000
Sempra Energy \| Parent Company \| Senior Unsecured Notes Maturing 2022 Through 2025
Debt Instruments [Abstract]
Proceeds from issuance of debt	$ 2,350,000,000
LIBOR \| Parent Company \| Notes at variable rates (2.50% at December 31, 2019) January 15, 2021(1)
Debt Instruments [Abstract]
Stated percentage rate	2.50%		2.50%
LIBOR \| Parent Company \| 4.125% Junior Subordinated Notes April 1, 2052(1)
Debt Instruments [Abstract]
Variable percentage rate		2.868%
LIBOR \| Sempra Energy \| Notes at variable rates (2.50% at December 31, 2019) January 15, 2021(1)
Debt Instruments [Abstract]
Stated percentage rate					2.50%