CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 789	$ 904	[1]
Restricted cash	20	24	[1]
Trade accounts receivable	1,051	1,308	[1]
Other accounts and notes receivable	188	214	[1]
Due from unconsolidated affiliates	4	4	[1]
Income taxes receivable	122	85	[1]
Deferred income taxes, net current assets	390	301	[1]
Inventories	267	287	[1]
Regulatory balancing accounts, undercollected	780	556	[1]
Other regulatory assets	40	38	[1]
Fixed-price contracts and other derivatives, current assets	101	106	[1]
Assets held for sale, power plant	293	0	[1]
Other current assets	150	170	[1]
Total current assets	4,195	3,997	[1]
Investments And Other Assets [Abstract]
Restricted cash, noncurrent	29	25	[1]
Due from unconsolidated affiliate	38	14	[1]
Regulatory assets arising from pension and other postretirement benefit obligations	449	435	[1]
Other regulatory assets	2,101	2,113	[1]
Nuclear decommissioning trusts	1,096	1,034	[1]
Other investments	1,769	1,575	[1]
Goodwill	1,000	1,024	[1]
Other intangible assets	421	426	[1]
Sundry	1,197	1,141	[1]
Total investments and other assets	8,100	7,787	[1]
Property, plant and equipment:
Property, plant and equipment	35,226	34,407	[1]
Less accumulated depreciation and amortization	(9,214)	(8,947)	[1]
Property, plant and equipment, net	26,012	25,460	[1]
Total assets	38,307	37,244	[1]
Current liabilities:
Short-term debt	1,238	545	[1]
Accounts payable - trade	1,032	1,088	[1]
Accounts payable - other	122	127	[1]
Dividends and interest payable	277	271	[1]
Accrued compensation and benefits	271	376	[1]
Regulatory balancing accounts, overcollected	0	91	[1]
Current portion of long-term debt	195	1,147	[1]
Fixed-price contracts and other derivatives, current liabilities	50	55	[1]
Customer deposits	149	154	[1]
Other current liabilities	548	515	[1]
Total current liabilities	3,882	4,369	[1]
Long-term debt	12,323	11,253	[1]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction	150	155	[1]
Pension and other postretirement benefit obligations, net of plan assets	675	667	[1]
Deferred income taxes, net noncurrent liabilities	3,010	2,804	[1]
Deferred investment tax credits	40	42	[1]
Regulatory liabilities arising from removal obligations	2,746	2,623	[1]
Asset retirement obligations	2,018	2,084	[1]
Fixed-price contracts and other derivatives, noncurrent liabilities	223	228	[1]
Deferred credits and other	1,189	1,169	[1]
Total deferred credits and other liabilities	10,051	9,772
Equity:
Preferred stock	0	0	[1]
Common stock	2,448	2,409	[1]
Retained earnings	9,019	8,827	[1]
Accumulated other comprehensive income (loss)	(273)	(228)	[1]
Total shareholders' equity	11,194	11,008	[1]
Preferred stock of subsidiaries	20	20	[1]
Other noncontrolling interests	837	822	[1]
Total equity	12,051	11,850	[1]
Total liabilities and equity	38,307	37,244	[1]
San Diego Gas and Electric Company and Subsidiary [Member]
Current assets:
Cash and cash equivalents	21	27	[1]
Restricted cash	4	6	[1]
Trade accounts receivable	300	266	[1]
Other accounts and notes receivable	16	28	[1]
Due from unconsolidated affiliates	1	1	[1]
Income taxes receivable	12	32	[1]
Deferred income taxes, net current assets	0	103	[1]
Inventories	74	86	[1]
Regulatory balancing accounts, undercollected	776	556	[1]
Other regulatory assets	34	29	[1]
Fixed-price contracts and other derivatives, current assets	53	61	[1]
Other current assets	47	75	[1]
Total current assets	1,338	1,270	[1]
Investments And Other Assets [Abstract]
Restricted cash, noncurrent	29	25	[1]
Deferred taxes recoverable in rates	764	788	[1]
Regulatory assets arising from fixed-price contracts and other derivatives - noncurrent	52	63	[1]
Regulatory assets arising from pension and other postretirement benefit obligations	105	106	[1]
Other regulatory assets	935	991	[1]
Nuclear decommissioning trusts	1,096	1,034	[1]
Sundry	278	254	[1]
Total investments and other assets	3,259	3,261	[1]
Property, plant and equipment:
Property, plant and equipment	14,845	14,346	[1]
Less accumulated depreciation and amortization	(3,675)	(3,500)	[1]
Property, plant and equipment, net	11,170	10,846	[1]
Total assets	15,767	15,377	[1]
Current liabilities:
Short-term debt	127	59	[1]
Accounts payable - trade	374	420	[1]
Due to unconsolidated affiliates	29	39	[1]
Deferred income taxes, net current liabilities	108	0	[1]
Dividends and interest payable	40	39	[1]
Accrued compensation and benefits	76	113	[1]
Current portion of long-term debt	115	29	[1]
Fixed-price contracts and other derivatives, current liabilities	38	38	[1]
Customer deposits	68	71	[1]
Other current liabilities	299	271	[1]
Total current liabilities	1,274	1,079	[1]
Long-term debt	4,577	4,525	[1]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction	39	34	[1]
Pension and other postretirement benefit obligations, net of plan assets	134	132	[1]
Deferred income taxes, net noncurrent liabilities	1,902	2,021	[1]
Deferred investment tax credits	23	24	[1]
Regulatory liabilities arising from removal obligations	1,551	1,403	[1]
Asset retirement obligations	751	861	[1]
Fixed-price contracts and other derivatives, noncurrent liabilities	166	175	[1]
Deferred credits and other	414	404	[1]
Total deferred credits and other liabilities	4,980	5,054	[1]
Equity:
Common stock	1,338	1,338	[1]
Retained earnings	3,521	3,299	[1]
Accumulated other comprehensive income (loss)	(8)	(9)	[1]
Total shareholders' equity	4,851	4,628	[1]
Other noncontrolling interests	85	91	[1]
Total equity	4,936	4,719	[1]
Total liabilities and equity	15,767	15,377	[1]
Southern California Gas Company [Member]
Current assets:
Cash and cash equivalents	16	27	[1]
Trade accounts receivable	374	595	[1]
Other accounts and notes receivable	72	97	[1]
Due from unconsolidated affiliates	13	21	[1]
Income taxes receivable	37	25	[1]
Inventories	63	69	[1]
Regulatory balancing accounts, undercollected	4	0	[1]
Other regulatory assets	6	5	[1]
Other current assets	37	34	[1]
Total current assets	622	873	[1]
Investments And Other Assets [Abstract]
Regulatory assets arising from pension and other postretirement benefit obligations	343	326	[1]
Other regulatory assets	342	262	[1]
Other post retirement benefit assets, net of plan liabilities	94	95	[1]
Sundry	124	124	[1]
Total investments and other assets	903	807	[1]
Property, plant and equipment:
Property, plant and equipment	12,266	11,831	[1]
Less accumulated depreciation and amortization	(4,497)	(4,364)	[1]
Property, plant and equipment, net	7,769	7,467	[1]
Total assets	9,294	9,147	[1]
Current liabilities:
Short-term debt	73	42	[1]
Accounts payable - trade	297	346	[1]
Accounts payable - other	70	79	[1]
Due to unconsolidated affiliates	13	16	[1]
Deferred income taxes, net current liabilities	119	45	[1]
Accrued compensation and benefits	111	141	[1]
Regulatory balancing accounts, overcollected	0	91	[1]
Current portion of long-term debt	1	252	[1]
Customer deposits	74	75	[1]
Other current liabilities	122	125	[1]
Total current liabilities	880	1,212	[1]
Long-term debt	1,408	1,159	[1]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction	109	108	[1]
Pension and other postretirement benefit obligations, net of plan assets	359	339	[1]
Deferred income taxes, net noncurrent liabilities	1,033	993	[1]
Deferred investment tax credits	17	18	[1]
Regulatory liabilities arising from removal obligations	1,178	1,205	[1]
Asset retirement obligations	1,230	1,182	[1]
Deferred credits and other	279	287	[1]
Regulatory liabilities arising from other post retirement benefit assets	94	95	[1]
Total deferred credits and other liabilities	4,299	4,227	[1]
Equity:
Preferred stock	22	22	[1]
Common stock	866	866	[1]
Retained earnings	1,837	1,679	[1]
Accumulated other comprehensive income (loss)	(18)	(18)	[1]
Total shareholders' equity	2,707	2,549	[1]
Total equity	2,707	2,549	[1]
Total liabilities and equity	$ 9,294	$ 9,147	[1]

[1] Derived from audited financial statements.