CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 221	$ 252	[1],[2]
Restricted cash	21	24	[1],[2]
Other accounts and notes receivable	132	147	[1],[2]
Trade accounts receivable	853	1,198	[1],[2]
Inventories	249	346	[1],[2]
Income taxes receivable	37
Regulatory balancing accounts, undercollected	114	38	[1],[2]
Regulatory assets	101	89	[1],[2]
Fixed-price contracts and other derivatives, current assets	75	85	[1],[2]
Settlement receivable related to wildfire litigation		10	[1],[2]
Other current assets	237	143	[1],[2]
Total current assets	2,040	2,332	[1],[2]
Investments And Other Assets [Abstract]
Restricted cash, noncurrent	18	22	[1],[2]
Regulatory assets arising from pension and other postretirement benefit obligations	1,050	1,126	[1],[2]
Regulatory assets arising from wildfire litigation costs	668	594	[1],[2]
Other regulatory assets	1,123	1,060	[1],[2]
Nuclear decommissioning trusts	847	804	[1],[2]
Other investments	1,639	1,671	[1],[2]
Goodwill	1,067	1,036	[1],[2]
Other intangible assets	441	448	[1],[2]
Sundry	712	691	[1],[2]
Total investments and other assets	7,565	7,452	[1],[2]
Property, plant and equipment:
Property, plant and equipment	32,647	31,192	[1],[2]
Less accumulated depreciation and amortization	(8,050)	(7,727)	[1],[2]
Property, plant and equipment, net	24,597	23,465	[1],[2]
Total assets	34,202	33,249	[1],[2]
Current liabilities:
Short-term debt	713	449	[1],[2]
Accounts payable - trade	903	983	[1],[2]
Accounts payable - other	109	124	[1],[2]
Income taxes payable	0	5	[1],[2]
Deferred income taxes, net current liabilities	163	173	[1],[2]
Dividends and interest payable	256	219	[1],[2]
Accrued compensation and benefits	222	323	[1],[2]
Regulatory balancing accounts, overcollected	270	105	[1],[2]
Current portion of long-term debt	698	336	[1],[2]
Fixed-price contracts and other derivatives, current liabilities	91	92	[1],[2]
Customer deposits	145	142	[1],[2]
Reserve for wildfire litigation (Note 10)	305	586	[1],[2]
Other current liabilities	559	615	[1],[2]
Total current liabilities	4,434	4,152	[1],[2]
Long-term debt	10,315	10,078	[1],[2]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction	148	142	[1],[2]
Pension and other postretirement benefit obligations, net of plan assets	1,345	1,423	[1],[2]
Deferred income taxes, net noncurrent liabilities	1,544	1,520	[1],[2]
Deferred investment tax credits	48	49	[1],[2]
Regulatory liabilities arising from removal obligations	2,614	2,551	[1],[2]
Asset retirement obligations	1,947	1,905	[1],[2]
Other regulatory liabilities	68	87	[1],[2]
Noncurrent reserve for wildfire litigation (Note 10)	171	10	[1],[2]
Fixed-price contracts and other derivatives, noncurrent liabilities	285	301	[1],[2]
Deferred credits and other	911	774	[1],[2]
Total deferred credits and other liabilities	9,081	8,762	[1],[2]
Contingently redeemable preferred stock of subsidiary	79	79	[1],[2]
Equity:
Common stock	2,164	2,104	[1],[2]
Retained earnings	8,171	8,162	[1],[2]
Deferred compensation		(2)	[1],[2]
Accumulated other comprehensive income (loss)	(456)	(489)	[1],[2]
Total shareholders' equity	9,879	9,775	[1],[2]
Preferred stock of subsidiaries	20	20	[1],[2]
Other noncontrolling interests	394	383	[1],[2]
Total equity	10,293	10,178	[1],[2]
Total liabilities and equity	34,202	33,249	[1],[2]
San Diego Gas and Electric Company and Subsidiary [Member]
Current assets:
Cash and cash equivalents	29	29	[2]
Restricted cash	12	21	[2]
Other accounts and notes receivable	26	23	[2]
Trade accounts receivable	229	267	[2]
Inventories	79	82	[2]
Due from unconsolidated affiliates	1	67	[2]
Income taxes receivable	233	102	[2]
Regulatory balancing accounts, net	114	38	[2]
Regulatory assets arising from fixed-price contracts and other derivatives - current	77	67	[2]
Regulatory assets	11	11	[2]
Fixed-price contracts and other derivatives, current assets	24	27	[2]
Settlement receivable related to wildfire litigation		10	[2]
Other current assets	33	51	[2]
Total current assets	868	795	[2]
Investments And Other Assets [Abstract]
Restricted cash, noncurrent	18	22	[2]
Deferred taxes recoverable in rates	606	570	[2]
Regulatory assets arising from fixed-price contracts and other derivatives - noncurrent	167	191	[2]
Regulatory assets arising from pension and other postretirement benefit obligations	299	309	[2]
Regulatory assets arising from wildfire litigation costs	668	594	[2]
Other regulatory assets	212	160	[2]
Nuclear decommissioning trusts	847	804	[2]
Sundry	73	70	[2]
Total investments and other assets	2,890	2,720	[2]
Property, plant and equipment:
Property, plant and equipment	13,648	13,003	[2]
Less accumulated depreciation and amortization	(3,110)	(2,963)	[2]
Property, plant and equipment, net	10,538	10,040	[2]
Total assets	14,296	13,555	[2]
Current liabilities:
Short-term debt	173
Accounts payable - trade	272	375	[2]
Due to unconsolidated affiliates	19	14	[2]
Deferred income taxes, net current liabilities	56	62	[2]
Accrued compensation and benefits	74	124	[2]
Current portion of long-term debt	19	19	[2]
Fixed-price contracts and other derivatives, current liabilities	58	55	[2]
Customer deposits	62	62	[2]
Reserve for wildfire litigation (Note 10)	305	586	[2]
Other current liabilities	129	139	[2]
Total current liabilities	1,167	1,436	[2]
Long-term debt	4,298	4,058	[2]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction	20	20	[2]
Pension and other postretirement benefit obligations, net of plan assets	334	342	[2]
Deferred income taxes, net noncurrent liabilities	1,399	1,167	[2]
Deferred investment tax credits	26	26	[2]
Regulatory liabilities arising from removal obligations	1,518	1,462	[2]
Asset retirement obligations	714	693	[2]
Noncurrent reserve for wildfire litigation (Note 10)	171	10	[2]
Fixed-price contracts and other derivatives, noncurrent liabilities	229	243	[2]
Deferred credits and other	299	178	[2]
Total deferred credits and other liabilities	4,710	4,141	[2]
Contingently redeemable preferred stock	79	79	[2]
Equity:
Common stock	1,338	1,338	[2]
Retained earnings	2,611	2,411	[2]
Accumulated other comprehensive income (loss)	(10)	(10)	[2]
Total shareholders' equity	3,939	3,739	[2]
Other noncontrolling interests	103	102	[2]
Total equity	4,042	3,841	[2]
Total liabilities and equity	14,296	13,555	[2]
Southern California Gas Company [Member]
Current assets:
Cash and cash equivalents	11	36	[2]
Other accounts and notes receivable	56	63	[2]
Trade accounts receivable	294	578	[2]
Temporary LIFO liquidation	29
Inventories	42	151	[2]
Due from unconsolidated affiliates	297	40	[2]
Income taxes receivable	42	17	[2]
Regulatory assets	6	9	[2]
Other current assets	27	28	[2]
Total current assets	804	922	[2]
Investments And Other Assets [Abstract]
Regulatory assets arising from pension and other postretirement benefit obligations	741	808	[2]
Other regulatory assets	138	137	[2]
Sundry	8	8	[2]
Total investments and other assets	887	953	[2]
Property, plant and equipment:
Property, plant and equipment	10,781	10,565	[2]
Less accumulated depreciation and amortization	(4,034)	(3,965)	[2]
Property, plant and equipment, net	6,747	6,600	[2]
Total assets	8,438	8,475	[2]
Current liabilities:
Accounts payable - trade	219	315	[2]
Accounts payable - other	65	78	[2]
Due to unconsolidated affiliates		2	[2]
Deferred income taxes, net current liabilities	43	44	[2]
Accrued compensation and benefits	92	99	[2]
Regulatory balancing accounts, net credit	270	105	[2]
Current portion of long-term debt	255	257	[2]
Customer deposits	76	75	[2]
Other current liabilities	122	172	[2]
Total current liabilities	1,142	1,147	[2]
Long-term debt	1,062	1,064	[2]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction	112	110	[2]
Pension and other postretirement benefit obligations, net of plan assets	766	833	[2]
Deferred income taxes, net noncurrent liabilities	623	576	[2]
Deferred investment tax credits	22	23	[2]
Regulatory liabilities arising from removal obligations	1,082	1,075	[2]
Asset retirement obligations	1,185	1,161	[2]
Deferred taxes refundable in rates	68	87	[2]
Deferred credits and other	213	206	[2]
Total deferred credits and other liabilities	4,071	4,071	[2]
Equity:
Preferred stock	22	22	[2]
Common stock	866	866	[2]
Retained earnings	1,295	1,326	[2]
Accumulated other comprehensive income (loss)	(20)	(21)	[2]
Total shareholders' equity	2,163	2,193	[2]
Total equity	2,163	2,193
Total liabilities and equity	$ 8,438	$ 8,475	[2]

[1] As adjusted for the retrospective effect of a change in accounting principle as we discuss in Note 1.

[2] Derived from audited financial statements.