CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 657	$ 912	[1]
Restricted cash	133	131	[1]
Trade accounts receivable	951	891	[1]
Other accounts and notes receivable	146	141	[1]
Due from unconsolidated affiliates		34	[1]
Income taxes receivable	301	248	[1]
Deferred income taxes, net current assets		75	[1]
Inventories	369	258	[1]
Regulatory assets	83	90	[1]
Fixed-price contracts and other derivatives, current assets	77	81	[1]
Settlement receivable related to wildfire litigation		300	[1]
Other current assets	221	192	[1]
Total current assets	2,938	3,353	[1]
Investments And Other Assets [Abstract]
Restricted cash, noncurrent	2	27	[1]
Regulatory assets arising from pension and other postretirement benefit obligations	824	869	[1]
Regulatory assets arising from wildfire litigation costs	500	364	[1]
Other regulatory assets	952	934	[1]
Nuclear decommissioning trusts	760	769	[1]
Investment in RBS Sempra Commodities LLP	322	787	[1]
Other investments	1,485	2,164	[1]
Goodwill	1,013	87	[1]
Other intangible assets	448	453	[1]
Sundry	669	600	[1]
Total investments and other assets	6,975	7,054	[1]
Property, plant and equipment:
Property, plant and equipment	30,130	27,087	[1]
Less accumulated depreciation and amortization	(7,427)	(7,211)	[1]
Property, plant and equipment, net	22,703	19,876	[1]
Total assets	32,616	30,283	[1]
Current liabilities:
Short-term debt	641	158	[1]
Accounts payable - trade	891	755	[1]
Accounts payable - other	117	109	[1]
Due to unconsolidated affiliates		36	[1]
Deferred income taxes, net current liabilities	94
Dividends and interest payable	261	188	[1]
Accrued compensation and benefits	266	311	[1]
Regulatory balancing accounts, net	226	241	[1]
Current portion of long-term debt	137	349	[1]
Fixed-price contracts and other derivatives, current liabilities	86	106	[1]
Customer deposits	137	129	[1]
Reserve for wildfire litigation (Note 10)	507	639	[1]
Other current liabilities	632	765	[1]
Total current liabilities	3,995	3,786	[1]
Long-term debt	10,033	8,980	[1]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction	142	154	[1]
Pension and other postretirement benefit obligations, net of plan assets	1,085	1,105	[1]
Deferred income taxes, net noncurrent liabilities	1,852	1,561	[1]
Deferred investment tax credits	47	50	[1]
Regulatory liabilities arising from removal obligations	2,658	2,630	[1]
Asset retirement obligations	1,510	1,449	[1]
Other regulatory liabilities	103	138	[1]
Fixed-price contracts and other derivatives, noncurrent liabilities	310	290	[1]
Deferred credits and other	818	823	[1]
Total deferred credits and other liabilities	8,525	8,200	[1]
Contingently redeemable preferred stock of subsidiary	79	79	[1]
Equity:
Common stock	2,089	2,036	[1]
Retained earnings	8,048	7,329	[1]
Deferred compensation	(4)	(8)	[1]
Accumulated other comprehensive income (loss)	(503)	(330)	[1]
Total shareholders' equity	9,630	9,027	[1]
Preferred stock of subsidiaries	20	100	[1]
Other noncontrolling interests	334	111	[1]
Total equity	9,984	9,238	[1]
Total liabilities and equity	32,616	30,283	[1]
San Diego Gas and Electric Company and Subsidiary [Member]
Current assets:
Cash and cash equivalents	303	127	[1]
Restricted cash	129	116	[1]
Trade accounts receivable	274	248	[1]
Other accounts and notes receivable	22	59	[1]
Due from unconsolidated affiliates	11	12	[1]
Income taxes receivable	100	37	[1]
Deferred income taxes, net current assets		129	[1]
Inventories	69	71	[1]
Regulatory assets arising from fixed-price contracts and other derivatives - current	64	66	[1]
Regulatory assets	7	5	[1]
Fixed-price contracts and other derivatives, current assets	14	28	[1]
Settlement receivable related to wildfire litigation		300	[1]
Other current assets	66	50	[1]
Total current assets	1,059	1,248	[1]
Investments And Other Assets [Abstract]
Restricted cash, noncurrent	2
Deferred taxes recoverable in rates	550	502	[1]
Regulatory assets arising from fixed-price contracts and other derivatives - noncurrent	203	233	[1]
Regulatory assets arising from pension and other postretirement benefit obligations	255	279	[1]
Regulatory assets arising from wildfire litigation costs	500	364	[1]
Other regulatory assets	72	73	[1]
Nuclear decommissioning trusts	760	769	[1]
Sundry	127	56	[1]
Total investments and other assets	2,469	2,276	[1]
Property, plant and equipment:
Property, plant and equipment	12,205	11,247	[1]
Less accumulated depreciation and amortization	(2,717)	(2,694)	[1]
Property, plant and equipment, net	9,488	8,553	[1]
Total assets	13,016	12,077	[1]
Current liabilities:
Accounts payable - trade	346	292	[1]
Due to unconsolidated affiliates	23	16	[1]
Deferred income taxes, net current liabilities	12
Accrued compensation and benefits	90	115	[1]
Regulatory balancing accounts, net	142	61	[1]
Current portion of long-term debt	19	19	[1]
Fixed-price contracts and other derivatives, current liabilities	51	51	[1]
Customer deposits	61	54	[1]
Reserve for wildfire litigation (Note 10)	507	639	[1]
Other current liabilities	172	136	[1]
Total current liabilities	1,423	1,383	[1]
Long-term debt	3,813	3,479	[1]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction	20	21	[1]
Pension and other postretirement benefit obligations, net of plan assets	288	309	[1]
Deferred income taxes, net noncurrent liabilities	1,137	1,001	[1]
Deferred investment tax credits	23	25	[1]
Regulatory liabilities arising from removal obligations	1,420	1,409	[1]
Asset retirement obligations	648	619	[1]
Fixed-price contracts and other derivatives, noncurrent liabilities	247	248	[1]
Deferred credits and other	245	283	[1]
Total deferred credits and other liabilities	4,028	3,915	[1]
Contingently redeemable preferred stock	79	79	[1]
Equity:
Common stock	1,338	1,138	[1]
Retained earnings	2,253	1,980	[1]
Accumulated other comprehensive income (loss)	(9)	(10)	[1]
Total shareholders' equity	3,582	3,108	[1]
Other noncontrolling interests	91	113	[1]
Total equity	3,673	3,221	[1]
Total liabilities and equity	13,016	12,077	[1]
Southern California Gas Company [Member]
Current assets:
Cash and cash equivalents	16	417	[1]
Trade accounts receivable	287	534	[1]
Other accounts and notes receivable	77	49	[1]
Due from unconsolidated affiliates	168	63	[1]
Income taxes receivable	14	28	[1]
Inventories	185	105	[1]
Regulatory assets	8	12	[1]
Other current assets	38	39	[1]
Total current assets	793	1,247	[1]
Investments And Other Assets [Abstract]
Regulatory assets arising from pension and other postretirement benefit obligations	565	586	[1]
Other regulatory assets	126	123	[1]
Sundry	9	8	[1]
Total investments and other assets	700	717	[1]
Property, plant and equipment:
Property, plant and equipment	10,132	9,824	[1]
Less accumulated depreciation and amortization	(3,844)	(3,802)	[1]
Property, plant and equipment, net	6,288	6,022	[1]
Total assets	7,781	7,986	[1]
Current liabilities:
Accounts payable - trade	225	327	[1]
Accounts payable - other	76	79	[1]
Due to unconsolidated affiliates	10	11	[1]
Deferred income taxes, net current liabilities	16	17	[1]
Accrued compensation and benefits	96	98	[1]
Regulatory balancing accounts, net	84	180	[1]
Current portion of long-term debt	8	262	[1]
Customer deposits	71	73	[1]
Other current liabilities	162	163	[1]
Total current liabilities	748	1,210	[1]
Long-term debt	1,315	1,320	[1]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction	112	133	[1]
Pension and other postretirement benefit obligations, net of plan assets	591	613	[1]
Deferred income taxes, net noncurrent liabilities	535	418	[1]
Deferred investment tax credits	23	25	[1]
Regulatory liabilities arising from removal obligations	1,224	1,208	[1]
Asset retirement obligations	819	788	[1]
Deferred taxes refundable in rates	103	138	[1]
Deferred credits and other	196	178	[1]
Total deferred credits and other liabilities	3,603	3,501	[1]
Equity:
Preferred stock	22	22	[1]
Common stock	866	866	[1]
Retained earnings	1,247	1,089	[1]
Accumulated other comprehensive income (loss)	(20)	(22)	[1]
Total shareholders' equity	2,115	1,955	[1]
Total equity	2,115	1,955
Total liabilities and equity	$ 7,781	$ 7,986	[1]

[1] Derived from audited financial statements.