CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)		Sep. 30, 2015		Dec. 31, 2014
Current assets:
Cash and cash equivalents		$ 697,000,000		$ 570,000,000	[1]
Restricted cash		13,000,000		11,000,000	[1]
Trade accounts receivable		1,024,000,000		1,242,000,000	[1]
Other accounts and notes receivable		176,000,000		152,000,000	[1]
Due from unconsolidated affiliates		3,000,000		38,000,000	[1]
Income taxes receivable		22,000,000		45,000,000	[1]
Deferred income taxes, net current assets		198,000,000		305,000,000	[1]
Inventories		416,000,000		396,000,000	[1]
Regulatory balancing accounts, undercollected		585,000,000		746,000,000	[1]
Fixed-price contracts and other derivatives, current assets		66,000,000		93,000,000	[1]
Assets held for sale, power plant		0		293,000,000	[1]
Other current assets		406,000,000		293,000,000	[1]
Total current assets		3,606,000,000		4,184,000,000	[1]
Investments And Other Assets [Abstract]
Restricted cash, noncurrent		40,000,000		29,000,000	[1]
Due from unconsolidated affiliate		175,000,000		188,000,000	[1]
Other regulatory assets		3,112,000,000		3,031,000,000	[1]
Nuclear decommissioning trusts		1,060,000,000		1,131,000,000	[1]
Other investments		2,845,000,000		2,848,000,000	[1]
Goodwill		847,000,000		931,000,000	[1]
Other intangible assets		407,000,000		415,000,000	[1]
Sundry		701,000,000		561,000,000	[1]
Dedicated assets in support of certain benefit plans		459,000,000		512,000,000	[1]
Total investments and other assets		9,646,000,000		9,646,000,000	[1]
Property, plant and equipment:
Property, plant and equipment		37,280,000,000		35,407,000,000	[1]
Less accumulated depreciation and amortization		(9,966,000,000)		(9,505,000,000)	[1]
Property, plant and equipment, net		27,314,000,000		25,902,000,000	[1]
Total assets		40,566,000,000		39,732,000,000	[1]
Current liabilities:
Short-term debt		1,097,000,000		1,733,000,000	[1]
Accounts payable - trade		1,091,000,000		1,198,000,000	[1]
Accounts payable - other		143,000,000		155,000,000	[1]
Due to unconsolidated affiliates		0		2,000,000	[1]
Dividends and interest payable		343,000,000		282,000,000	[1]
Accrued compensation and benefits		356,000,000		373,000,000	[1]
Current portion of long-term debt		1,168,000,000		469,000,000	[1]
Fixed-price contracts and other derivatives, current liabilities		73,000,000		55,000,000	[1]
Customer deposits		152,000,000		153,000,000	[1]
Other current liabilities		695,000,000		649,000,000	[1]
Total current liabilities		5,118,000,000		5,069,000,000	[1]
Long-term debt		12,527,000,000		12,167,000,000	[1]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction		145,000,000		144,000,000	[1]
Pension and other postretirement benefit obligations, net of plan assets		1,114,000,000		1,064,000,000	[1]
Deferred income taxes, net noncurrent liabilities		3,057,000,000		3,003,000,000	[1]
Deferred investment tax credits		34,000,000		37,000,000	[1]
Regulatory liabilities arising from removal obligations		2,715,000,000		2,741,000,000	[1]
Asset retirement obligations		2,068,000,000		2,048,000,000	[1]
Fixed-price contracts and other derivatives, noncurrent liabilities		300,000,000		255,000,000	[1]
Deferred credits and other		1,092,000,000		1,104,000,000	[1]
Total deferred credits and other liabilities		10,525,000,000		10,396,000,000	[1]
Equity:
Preferred stock		0		0	[1]
Common stock		2,587,000,000		2,484,000,000	[1]
Retained earnings		9,799,000,000		9,339,000,000	[1]
Accumulated other comprehensive income (loss)	[2]	(761,000,000)		(497,000,000)	[1]
Total shareholders' equity		11,625,000,000		11,326,000,000	[1]
Preferred stock of subsidiaries		20,000,000		20,000,000	[1]
Other noncontrolling interests		751,000,000		754,000,000	[1]
Total equity		12,396,000,000		12,100,000,000	[1]
Total liabilities and equity		40,566,000,000		39,732,000,000	[1]
San Diego Gas and Electric Company [Member]
Current assets:
Cash and cash equivalents		20,000,000		8,000,000	[1]
Restricted cash		9,000,000		8,000,000	[1]
Trade accounts receivable		411,000,000		285,000,000	[1]
Other accounts and notes receivable		27,000,000		35,000,000	[1]
Due from unconsolidated affiliates		1,000,000		1,000,000	[1]
Income taxes receivable		13,000,000		0	[1]
Inventories		71,000,000		73,000,000	[1]
Regulatory balancing accounts, undercollected		495,000,000		711,000,000	[1]
Other regulatory assets		146,000,000		54,000,000	[1]
Fixed-price contracts and other derivatives, current assets		20,000,000		44,000,000	[1]
Other current assets		135,000,000		125,000,000	[1]
Total current assets		1,348,000,000		1,344,000,000	[1]
Investments And Other Assets [Abstract]
Restricted cash, noncurrent		12,000,000		11,000,000	[1]
Deferred taxes recoverable in rates		870,000,000		824,000,000	[1]
Other regulatory assets		1,000,000,000		1,086,000,000	[1]
Nuclear decommissioning trusts		1,060,000,000		1,131,000,000	[1]
Sundry		376,000,000		282,000,000	[1]
Total investments and other assets		3,318,000,000		3,334,000,000	[1]
Property, plant and equipment:
Property, plant and equipment		16,131,000,000		15,478,000,000	[1]
Less accumulated depreciation and amortization		(4,105,000,000)		(3,860,000,000)	[1]
Property, plant and equipment, net		12,026,000,000		11,618,000,000	[1]
Total assets		16,692,000,000		16,296,000,000	[1]
Current liabilities:
Short-term debt		44,000,000		246,000,000	[1]
Accounts payable - trade		408,000,000		441,000,000	[1]
Due to unconsolidated affiliates		22,000,000		21,000,000	[1]
Income taxes payable		0		30,000,000	[1]
Deferred income taxes, net current liabilities		243,000,000		53,000,000	[1]
Accrued compensation and benefits		110,000,000		124,000,000	[1]
Current portion of long-term debt		301,000,000		365,000,000	[1]
Fixed-price contracts and other derivatives, current liabilities		62,000,000		40,000,000	[1]
Customer deposits		71,000,000		71,000,000	[1]
Other current liabilities		264,000,000		237,000,000	[1]
Interest payable		49,000,000		40,000,000	[1]
Asset Retirement Obligation Current		108,000,000		120,000,000	[1]
Total current liabilities		1,682,000,000		1,788,000,000	[1]
Long-term debt		4,477,000,000		4,319,000,000	[1]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction		43,000,000		41,000,000	[1]
Pension and other postretirement benefit obligations, net of plan assets		227,000,000		216,000,000	[1]
Deferred income taxes, net noncurrent liabilities		2,155,000,000		2,121,000,000	[1]
Deferred investment tax credits		19,000,000		22,000,000	[1]
Regulatory liabilities arising from removal obligations		1,538,000,000		1,557,000,000	[1]
Asset retirement obligations		740,000,000		754,000,000	[1]
Fixed-price contracts and other derivatives, noncurrent liabilities		170,000,000		153,000,000	[1]
Deferred credits and other		352,000,000		333,000,000	[1]
Total deferred credits and other liabilities		5,244,000,000		5,197,000,000	[1]
Equity:
Common stock		1,338,000,000		1,338,000,000	[1]
Retained earnings		3,899,000,000		3,606,000,000	[1]
Accumulated other comprehensive income (loss)		(12,000,000)	[2]	(12,000,000)	[1]
Total shareholders' equity		5,225,000,000		4,932,000,000	[1]
Other noncontrolling interests		64,000,000		60,000,000	[1]
Total equity		5,289,000,000		4,992,000,000	[1]
Total liabilities and equity		16,692,000,000		16,296,000,000	[1]
Southern California Gas Company [Member]
Current assets:
Cash and cash equivalents		123,000,000		85,000,000	[1]
Trade accounts receivable		301,000,000		586,000,000	[1]
Other accounts and notes receivable		69,000,000		51,000,000	[1]
Due from unconsolidated affiliates		220,000,000		4,000,000	[1]
Income taxes receivable		25,000,000		5,000,000	[1]
Inventories		192,000,000		181,000,000	[1]
Regulatory balancing accounts, undercollected		90,000,000		35,000,000	[1]
Other regulatory assets		7,000,000		5,000,000	[1]
Other current assets		39,000,000		36,000,000	[1]
Total current assets		1,066,000,000		988,000,000	[1]
Investments And Other Assets [Abstract]
Regulatory assets arising from pension and other postretirement benefit obligations		665,000,000		617,000,000	[1]
Other regulatory assets		543,000,000		472,000,000	[1]
Sundry		176,000,000		140,000,000	[1]
Total investments and other assets		1,384,000,000		1,229,000,000	[1]
Property, plant and equipment:
Property, plant and equipment		13,739,000,000		12,886,000,000	[1]
Less accumulated depreciation and amortization		(4,834,000,000)		(4,642,000,000)	[1]
Property, plant and equipment, net		8,905,000,000		8,244,000,000	[1]
Total assets		11,355,000,000		10,461,000,000	[1]
Current liabilities:
Short-term debt		0		50,000,000	[1]
Accounts payable - trade		355,000,000		532,000,000	[1]
Accounts payable - other		77,000,000		88,000,000	[1]
Due to unconsolidated affiliates		51,000,000		13,000,000	[1]
Deferred income taxes, net current liabilities		171,000,000		53,000,000	[1]
Accrued compensation and benefits		144,000,000		129,000,000	[1]
Current portion of long-term debt		9,000,000		0
Customer deposits		74,000,000		75,000,000	[1]
Other current liabilities		164,000,000		149,000,000	[1]
Total current liabilities		1,045,000,000		1,089,000,000	[1]
Long-term debt		2,498,000,000		1,906,000,000	[1]
Deferred Credits And Other Liabilities [Abstract]
Customer advances for construction		102,000,000		102,000,000	[1]
Pension and other postretirement benefit obligations, net of plan assets		682,000,000		633,000,000	[1]
Deferred income taxes, net noncurrent liabilities		1,270,000,000		1,212,000,000	[1]
Deferred investment tax credits		14,000,000		16,000,000	[1]
Regulatory liabilities arising from removal obligations		1,158,000,000		1,167,000,000	[1]
Asset retirement obligations		1,286,000,000		1,255,000,000	[1]
Deferred credits and other		293,000,000		300,000,000	[1]
Total deferred credits and other liabilities		4,805,000,000		4,685,000,000	[1]
Equity:
Preferred stock		22,000,000		22,000,000	[1]
Common stock		866,000,000		866,000,000	[1]
Retained earnings		2,137,000,000		1,911,000,000	[1]
Accumulated other comprehensive income (loss)		(18,000,000)	[2]	(18,000,000)	[1]
Total shareholders' equity		3,007,000,000		2,781,000,000	[1]
Total equity		3,007,000,000		2,781,000,000	[1]
Total liabilities and equity		$ 11,355,000,000		$ 10,461,000,000	[1]

[1] Derived from audited financial statements.

[2] All amounts are net of income tax, if subject to tax, and exclude noncontrolling interests.