SIGNIFICANT ACCOUNTING POLICIES AND OTHER FINANCIAL DATA (Tables)

12 Months Ended

Dec. 31, 2012

Schedule Of Regulatory Balancing Accounts [Abstract]

Schedule Of Regulatory Balancing Accounts

SUMMARY OF REGULATORY BALANCING ACCOUNTS AT DECEMBER 31
(Dollars in millions)
		Sempra Energy
		Consolidated				SDG&E				SoCalGas
		2012		2011		2012		2011		2012		2011
Overcollected		$	643	$	709	$	340	$	419	$	303	$	290
Undercollected			(897)		(642)		(735)		(457)		(162)		(185)
Net (receivable) payable(1)		$	(254)	$	67	$	(395)	$	(38)	$	141	$	105
(1)	At December 31, 2012 and 2011, the net receivable at SDG&E and the net payable at SoCalGas are shown separately on Sempra Energy's Consolidated Balance Sheet.

Schedule Of Regulatory Assets (Liabilities) [Abstract]

Schedule Of Regulatory Assets (Liabilities)

REGULATORY ASSETS (LIABILITIES) AT DECEMBER 31
(Dollars in millions)
		2012		2011
SDG&E
Fixed-price contracts and other derivatives		$	149	$	258
Costs related to wildfire litigation			364		594
Deferred taxes recoverable in rates			718		570
Pension and other postretirement benefit obligations			303		309
Removal obligations(1)			(1,603)		(1,462)
Unamortized loss on reacquired debt, net			16		20
Environmental costs			16		17
Legacy meters			90		91
Sunrise Powerlink fire mitigation			117		―
Other			23		43
Total SDG&E			193		440
SoCalGas
Pension and other postretirement benefit obligations			835		808
Employee benefit costs			58		66
Removal obligations(1)			(1,103)		(1,075)
Deferred taxes recoverable (refundable) in rates			38		(87)
Unamortized loss on reacquired debt, net			17		20
Environmental costs			14		21
Workers’ compensation			27		44
Other			(2)		(5)
Total SoCalGas			(116)		(208)
Other Sempra Energy
Mobile Gas regulatory assets			20		10
Mobile Gas regulatory liabilities			(15)		(15)
Willmut Gas			(2)		―
Ecogas			1		3
Total Other Sempra Energy			4		(2)
Total Sempra Energy Consolidated		$	81	$	230
(1)	Related to obligations discussed below in “Asset Retirement Obligations.”

NET REGULATORY ASSETS (LIABILITIES) AS PRESENTED ON THE CONSOLIDATED BALANCE SHEETS AT DECEMBER 31
(Dollars in millions)
		2012						2011
		Sempra						Sempra
		Energy						Energy
		Consolidated		SDG&E		SoCalGas		Consolidated		SDG&E		SoCalGas
Current regulatory assets		$	62	$	49	$	4	$	89	$	78	$	9
Noncurrent regulatory assets			2,742		1,747		983		2,780		1,824		945
Current regulatory liabilities(1)			(2)		―		―		(1)		―		―
Noncurrent regulatory liabilities			(2,721)		(1,603)		(1,103)		(2,638)		(1,462)		(1,162)
Total		$	81	$	193	$	(116)	$	230	$	440	$	(208)
(1)	Included in Other Current Liabilities.

Schedule Of Receivables Collection Allowances [Abstract]

Schedule Of Receivables Collection Allowances

COLLECTION ALLOWANCES
(Dollars in millions)
	Years ended December 31,
	2012		2011		2010
Sempra Energy Consolidated
Allowances for collection of receivables at January 1	$	29	$	29	$	27
Provisions for uncollectible accounts		21		20		22
Write-offs of uncollectible accounts		(19)		(20)		(20)
Allowances for collection of receivables at December 31	$	31	$	29	$	29
SDG&E
Allowances for collection of receivables at January 1	$	6	$	5	$	4
Provisions for uncollectible accounts		5		8		7
Write-offs of uncollectible accounts		(5)		(7)		(6)
Allowances for collection of receivables at December 31	$	6	$	6	$	5
SoCalGas
Allowances for collection of receivables at January 1	$	12	$	14	$	16
Provisions for uncollectible accounts		12		8		8
Write-offs of uncollectible accounts		(10)		(10)		(10)
Allowances for collection of receivables at December 31	$	14	$	12	$	14

Schedule Of Inventory Balances [Abstract]

Schedule Of Inventory Balances

INVENTORY BALANCES AT DECEMBER 31
(Dollars in millions)
	Natural Gas					LNG			Materials and supplies				Total
	2012		2011			2012	2011		2012		2011		2012		2011
SDG&E	$	3	$	6	$	―	$	―	$	79	$	76	$	82	$	82
SoCalGas		128		128		―		―		23		23		151		151
Sempra South American Utilities		―		―		―		―		34		36		34		36
Sempra Mexico		―		―		8		10		8		7		16		17
Sempra Renewables		―		―		―		―		3		―		3		―
Sempra Natural Gas		109		47		8		4		5		9		122		60
Sempra Energy Consolidated	$	240	$	181	$	16	$	14	$	152	$	151	$	408	$	346

Schedule Of Property Plant And Equipment By Major Functional Category [Abstract]

Schedule Of Property Plant And Equipment By Major Functional Category

PROPERTY, PLANT AND EQUIPMENT BY MAJOR FUNCTIONAL CATEGORY
(Dollars in millions)
		Property, Plant
		and Equipment at				Depreciation rates for
		December 31,				years ended December 31,
		2012		2011		2012		2011		2010
SDG&E:
Natural gas operations		$	1,406	$	1,349	3.20	%	3.15	%	3.00	%
Electric distribution			5,217		4,894	4.15		4.13		4.06
Electric transmission			3,714		1,938	2.63		2.74		2.70
Electric generation(1)			2,242		2,166	4.68		4.92		4.30
Other electric(2)			679		604	7.92		8.26		8.19
Construction work in progress			866		2,052	NA		NA		NA
Total SDG&E			14,124		13,003
SoCalGas:
Natural gas operations(3)			10,756		10,055	3.74		3.62		3.54
Other non-utility			129		129	1.36		1.62		1.74
Construction work in progress			302		381	NA		NA		NA
Total SoCalGas			11,187		10,565
						Estimated			Weighted Average
Other operating units and parent(4):						Useful Lives			Useful Life
Land and land rights			298		292	20 to 50 years(5)			47
Machinery and equipment:
Utility electric distribution operations			1,459		1,267	10 to 46 years			40
Generating plants			1,568		1,278	3 to 50 years			32
LNG terminals			2,061		2,059	3 to 50 years			47
Pipelines and storage			1,634		1,510	3 to 50 years			45
Other			241		168	2 to 50 years			15
Construction work in progress			692		849	NA			NA
Other			264		201	3 to 80 years			31
			8,217		7,624
Total Sempra Energy Consolidated		$	33,528	$	31,192
(1)	Includes capital lease assets of $183 million at both December 31, 2012 and 2011, primarily related to variable interest entities of which SDG&E is not the primary beneficiary.
(2)	Includes capital lease assets of $23 million and $26 million at December 31, 2012 and 2011, respectively.
(3)	Includes capital lease assets of $32 million and $33 million at December 31, 2012 and 2011, respectively.
(4)	December 31, 2012 balances include $144 million, $171 million and $18 million of utility plant, primarily pipelines and other distribution assets, at Ecogas, Mobile Gas and Willmut Gas, respectively. December 31, 2011 balances include $126 million and $163 million of utility plant, primarily pipelines and other distribution assets, at Ecogas and Mobile Gas, respectively.
(5)	Estimated useful lives are for land rights.

Schedule Of Accumulated Depreciation And Decommissioning Amounts [Abstract]

Schedule Of Accumulated Depreciation And Decommissioning Amounts

ACCUMULATED DEPRECIATION AND DECOMMISSIONING AMOUNTS
(Dollars in millions)
		December 31,
		2012		2011
SDG&E:
Accumulated depreciation and decommissioning of utility plant in service:
Electric(1)		$	2,660	$	2,387
Natural gas			601		576
Total SDG&E			3,261		2,963
SoCalGas:
Accumulated depreciation of natural gas utility plant in service(2)			4,067		3,863
Accumulated depreciation – other non-utility			103		102
Total SoCalGas			4,170		3,965
Other operating units and parent:
Accumulated depreciation – other(3)			806		755
Accumulated depreciation of utility electric distribution operations			100		44
			906		799
Total Sempra Energy Consolidated		$	8,337	$	7,727
(1)	Includes accumulated depreciation for assets under capital lease of $21 million and $16 million at December 31, 2012 and 2011, respectively.
(2)	Includes accumulated depreciation for assets under capital lease of $28 million and $22 million at December 31, 2012 and 2011, respectively.
(3)	December 31, 2012 balances include $34 million, $21 million and $1 million of accumulated depreciation for utility plant at Ecogas, Mobile Gas and Willmut Gas, respectively. December 31, 2011 balances include $28 million and $15 million of accumulated depreciation for utility plant at Ecogas and Mobile Gas, respectively.

Schedule Of Capitalized Financing Costs [Abstract]

Schedule Of Capitalized Financing Costs

CAPITALIZED FINANCING COSTS
(Dollars in millions)
	Years ended December 31,
	2012		2011		2010
Sempra Energy Consolidated:
AFUDC related to debt	$	38	$	40	$	24
AFUDC related to equity		96		99		57
Other capitalized financing costs		52		26		33
Total Sempra Energy Consolidated	$	186	$	165	$	114
SDG&E:
AFUDC related to debt	$	30	$	33	$	18
AFUDC related to equity		71		80		43
Total SDG&E	$	101	$	113	$	61
SoCalGas:
AFUDC related to debt	$	8	$	7	$	6
AFUDC related to equity		25		19		14
Other capitalized financing costs		1		―		―
Total SoCalGas	$	34	$	26	$	20

Schedule Of Long Lived Assets Held For Sale [Abstract]

Schedule Of Long-lived Assets Held For Sale

(Dollars in millions)		2012
Property, plant, and equipment, net		$	292
Inventories			4
Total assets held for sale			296
Liability held for sale - asset retirement obligation(1)			(5)
Total		$	291
(1)	Included in Other Current Liabilities on the Consolidated Balance Sheet.

Schedule Of Goodwill [Abstract]

Schedule Of Goodwill

GOODWILL
(Dollars in millions)
			Sempra
		South American			Sempra		Sempra
			Utilities		Mexico		Natural Gas		Total
Balance at December 31, 2010		$	―	$	25	$	62	$	87
Acquisition of subsidiaries			975		―		―		975
Foreign currency translation(1)			(26)		―		―		(26)
Balance at December 31, 2011			949		25		62		1,036
Acquisition of subsidiary			―		―		10		10
Foreign currency translation(1)			65		―		―		65
Balance at December 31, 2012		$	1,014	$	25	$	72	$	1,111
(1)	We record the offset of this fluctuation to other comprehensive income.

Schedule Of Acquired Finite Lived Intangible Assets By Major Class [Abstract]

Schedule Of Other Intangible Assets

OTHER INTANGIBLE ASSETS
(Dollars in millions)
	Amortization period	December 31,		December 31,
	(years)	2012		2011
Storage rights	46	$	138	$	138
Development rights	50		322		322
Other	15 years to indefinite		19		21
			479		481
Less accumulated amortization:
Storage rights			(13)		(10)
Development rights			(27)		(21)
Other			(3)		(2)
			(43)		(33)
Total		$	436	$	448

Schedule Of Variable Interest Entities [Abstract]

Schedule Of Variable Interest Entities

AMOUNTS ASSOCIATED WITH OTAY MESA VIE
(Dollars in millions)
			December 31,
			2012		2011
Cash and cash equivalents			$	8	$	12
Restricted cash				10		7
Accounts receivable - trade, net				―		7
Inventories				2		2
Other				1		1
Total current assets				21		29
Restricted cash				22		22
Sundry				5		6
Property, plant and equipment, net				466		494
Total assets			$	514	$	551
Current portion of long-term debt			$	10	$	10
Fixed-price contracts and other derivatives				17		16
Other				8		9
Total current liabilities				35		35
Long-term debt				335		345
Fixed-price contracts and other derivatives				64		65
Deferred credits and other				4		4
Other noncontrolling interest				76		102
Total liabilities and equity			$	514	$	551
	Years ended December 31,
	2012		2011		2010
Operating revenues
Electric	$	―	$	―	$	(1)
Natural gas		―		―		(3)
Total operating revenues		―		―		(4)
Operating expenses
Cost of electric fuel and purchased power		(83)		(72)		(82)
Operation and maintenance		19		19		20
Depreciation and amortization		26		22		26
Total operating expenses		(38)		(31)		(36)
Operating income		38		31		32
Other (expense) income, net		(1)		(1)		(34)
Interest expense		(11)		(11)		(14)
Income (loss) before income taxes/Net income (loss)		26		19		(16)
(Earnings) losses attributable to noncontrolling interest		(26)		(19)		16
Earnings	$	―	$	―	$	―

Schedule Of Changes In Asset Retirement Obligations [Abstract]

Schedule Of Changes In Asset Retirement Obligations

CHANGES IN ASSET RETIREMENT OBLIGATIONS
(Dollars in millions)
		Sempra Energy
		Consolidated				SDG&E				SoCalGas
		2012		2011		2012		2011		2012		2011
Balance as of January 1(1)		$	1,925	$	1,468	$	698	$	623	$	1,175	$	803
Accretion expense			92		82		42		38		48		41
Liabilities incurred			21		12		―		3		―		―
Reclassification(2)			(5)		―		―		―		―		―
Payments			(2)		(1)		―		―		(1)		―
Revisions(3)			25		364		1		34		31		331
Balance as of December 31(1)		$	2,056	$	1,925	$	741	$	698	$	1,253	$	1,175
(1)	The current portions of the obligations are included in Other Current Liabilities on the Consolidated Balance Sheets.
(2)	Reclassification to liability held for sale - asset retirement obligation which is included in Other Current Liabilities on the Consolidated Balance Sheets, as we discuss in "Assets Held for Sale" above.
(3)	The increase in obligations at SDG&E and SoCalGas for revisions in 2011 resulted from changes in assets in service and a decrease in the discount rate from 5.13 percent in 2010 to 4.00 percent in 2011, based on the risk-free rate plus an estimated credit spread.

Schedule Of Accumulated Other Comprehensive Income [Abstract]

Schedule Of Accumulated Other Comprehensive Income

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) AND
ASSOCIATED INCOME TAX EXPENSE (BENEFIT)
(Dollars in millions)
	Accumulated Other Comprehensive Income (Loss)				Income Tax Expense (Benefit)
	2012		2011		2012		2011
Sempra Energy Consolidated
Foreign currency translation loss	$	(240)	$	(359)	$	―	$	(3)
Financial instruments		(35)		(31)		(24)		(22)
Unamortized net actuarial loss		(102)		(100)		(70)		(68)
Unamortized prior service credit		1		1		1		1
Balance as of December 31	$	(376)	$	(489)	$	(93)	$	(92)
SDG&E
Unamortized net actuarial loss	$	(12)	$	(11)	$	(8)	$	(8)
Unamortized prior service credit		1		1		1		1
Balance as of December 31	$	(11)	$	(10)	$	(7)	$	(7)
SoCalGas
Financial instruments	$	(15)	$	(16)	$	(10)	$	(11)
Unamortized net actuarial loss		(4)		(6)		(1)		(4)
Unamortized prior service credit		1		1		―		―
Balance as of December 31	$	(18)	$	(21)	$	(11)	$	(15)

Schedule Of Noncontrolling Interests [Abstract]

Schedule Of Noncontrolling Interests

OTHER NONCONTROLLING INTERESTS AS OF DECEMBER 31
(Dollars in millions)
		Percent Ownership Held by Others			2012		2011
Otay Mesa VIE (at SDG&E)		100	%	$	76	$	102
Chilquinta Energía subsidiaries		24 - 43			29		34
Luz del Sur		20			236		216
Tecsur		10			4		4
Bay Gas Storage Company, Ltd.(1)		9			20		17
Liberty Gas Storage, LLC(1)		25			15		9
Southern Gas Transmission Company(1)		49			1		1
Total Sempra Energy				$	381	$	383
(1)	Part of Sempra Natural Gas.

Schedule Of Utilities Revenues [Abstract]

Schedule Of Utilities Revenues

TOTAL UTILITIES REVENUES AT SEMPRA ENERGY CONSOLIDATED(1)
(Dollars in millions)
		Years ended December 31,
		2012		2011		2010
Natural gas revenues		$	3,873	$	4,489	$	4,491
Electric revenues			4,568		3,833		2,528
Total		$	8,441	$	8,322	$	7,019
(1)	Excludes intercompany revenues.

Schedule Of Foreign Currency Translation Adjustments To Equity Method Investments [Abstract]

Schedule Of Foreign Currency Translation Adjustments To Equity Method Investments [Text Block]

			Upward (downward) adjustment to investments
Investment		Currency	2011(1)		2010
Chilquinta Energía		Chilean Peso	$	(10)	$	34
Luz del Sur		Peruvian Nuevo Sol		―		5
(1)	As discussed in Note 3, the cumulative foreign currency translation adjustment balances totaling $54 million in Accumulated Other Comprehensive Income (Loss) as of April 6, 2011 were reclassified to net income as a result of the gain on the remeasurement of our equity method investments in Chilquinta Energía and Luz del Sur during the second quarter of 2011.

Schedule Of Foreign Currency Transaction Gain (Loss) [Abstract]

Schedule Of Foreign Currency Transaction Gain (Loss) [Text Block]

	Years ended December 31,
(Dollars in millions)	2012		2011		2010
Currency transaction gain	$	9	$	11	$	4

Schedule Of Due To And From Affiliates [Abstract]

Schedule Of Amounts Due To and From Affiliates at SDG&E and SoCalGas

AMOUNTS DUE TO AND FROM AFFILIATES AT SDG&E AND SOCALGAS
(Dollars in millions)
		December 31,
		2012		2011
SDG&E
Current:
Due from SoCalGas		$	37	$	2
Due from various affiliates			2		65
		$	39	$	67
Due to Sempra Energy		$	19	$	14
Income taxes due from Sempra Energy(1)		$	12	$	97
SoCalGas
Current:
Due from Sempra Energy		$	24	$	23
Due from various affiliates			―		17
		$	24	$	40
Due to SDG&E		$	37	$	2
Income taxes due from Sempra Energy(1)		$	99	$	17
(1)	SDG&E and SoCalGas are included in the consolidated income tax return of Sempra Energy and are allocated income tax expense from Sempra Energy in an amount equal to that which would result from the companies’ having always filed a separate return.

Schedule Of Revenues From Affiliates [Abstract]

Schedule Of Revenues From Unconsolidated Affiliates at the SDG&E and SoCalGas

REVENUES FROM UNCONSOLIDATED AFFILIATES AT SDG&E AND SOCALGAS
(Dollars in millions)
	Years ended December 31,
	2012		2011		2010
SDG&E	$	9	$	7	$	8
SoCalGas		46		53		44

Schedule Of Transactions With Joint Venture [Abstract]

Schedule Of Amounts Recorded For Transactions with RBS Sempra Commodities

AMOUNTS RECORDED FOR TRANSACTIONS WITH RBS SEMPRA COMMODITIES
(Dollars in millions)
		Years ended December 31,
		2011(1)		2010
Revenues:
SoCalGas		$	―	$	14
Sempra Mexico			37		82
Sempra Natural Gas			7		184
Cost of natural gas:
SDG&E		$	―	$	3
SoCalGas			―		36
Sempra Mexico			74		193
Sempra Natural Gas			3		177
(1)	With the exception of Sempra Mexico, whose contract with RBS Sempra Commodities expired in July 2011, amounts only include activities prior to May 1, 2011, the date by which substantially all the contracts with RBS Sempra Commodities were assigned to buyers of the joint venture businesses.

Schedule Of Other Income (Expense) [Abstract]

Schedule Of Other Income (Expense)

OTHER INCOME, NET
(Dollars in millions)
		Years ended December 31,
		2012		2011		2010
Sempra Energy Consolidated:
Allowance for equity funds used during construction		$	96	$	99	$	57
Investment gains(1)			41		22		35
Gains (losses) on interest rate and foreign exchange instruments(2)			10		(14)		(24)
Regulatory interest income, net(3)			1		2		1
Sundry, net(4)			24		21		71
	Total	$	172	$	130	$	140
SDG&E:
Allowance for equity funds used during construction		$	71	$	80	$	43
Regulatory interest income, net(3)			2		2		―
Losses on interest rate instruments(5)			―		(1)		(34)
Sundry, net			(4)		(2)		1
	Total	$	69	$	79	$	10
SoCalGas:
Allowance for equity funds used during construction		$	25	$	19	$	14
Regulatory interest (expense) income, net(3)			(1)		―		1
Sundry, net			(7)		(6)		(3)
	Total	$	17	$	13	$	12
(1)	Represents investment gains on dedicated assets in support of our executive retirement and deferred compensation plans. These amounts are partially offset by corresponding changes in compensation expense related to the plans.
(2)	Sempra Energy Consolidated includes Otay Mesa VIE and additional instruments.
(3)	Interest on regulatory balancing accounts.
(4)	Amount in 2010 includes proceeds of $48 million from a legal settlement.
(5)	Related to Otay Mesa VIE.