$SRE
SEMPRA Stock $sre

$sre Overview Financials Valuation SEC Filings Company Website

2010 Q4 Form 8-K Financial Statement

#000008652112000042 Filed on May 11, 2012

Income Statement

Concept	2010 Q4	2009	2008 Q4
Revenue	$2.345B	$8.106B	$2.293B
YoY Change	-4.52%	-24.65%	-26.27%
Cost Of Revenue	$21.00M	$77.00M	$14.00M
YoY Change	-25.0%	-57.69%	-92.71%
Gross Profit	$2.324B	$8.029B	$2.279B
YoY Change	-4.28%	-24.08%	-21.9%
Gross Profit Margin	99.1%	99.05%	99.39%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$223.0M	$775.0M	$179.0M
YoY Change	7.73%	12.81%	4.07%
% of Gross Profit	9.6%	9.65%	7.85%
Operating Expenses	$1.950B	$6.719B	$2.041B
YoY Change	-5.66%	-27.23%	-15.31%
Operating Profit	$374.0M	$1.310B	$238.0M
YoY Change	3.6%	-2.46%	-53.15%
Interest Expense	-$99.00M	$367.0M	$170.0M
YoY Change	482.35%	45.06%	-780.0%
% of Operating Profit	-26.47%	28.02%	71.43%
Other Income/Expense, Net	$21.00M	$149.0M	-$139.0M
YoY Change	-59.62%	-236.7%	768.75%
Pretax Income	$311.0M	$1.007B	$269.0M
YoY Change	-20.66%	-16.01%	-41.27%
Income Tax	$17.00M	$422.0M	$15.00M
% Of Pretax Income	5.47%	41.91%	5.58%
Net Earnings	$283.0M	$1.119B	$322.0M
YoY Change	-2.75%	0.54%	11.42%
Net Earnings / Revenue	12.07%	13.8%	14.04%
Basic Earnings Per Share		$4.60
Diluted Earnings Per Share	$1.167M	$4.52	$1.317M
COMMON SHARES
Basic Shares Outstanding	240.5M shares	243.3M shares
Diluted Shares Outstanding		247.4M shares

Balance Sheet

Concept	2010 Q4	2009	2008 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$912.0M	$110.0M	$507.0M
YoY Change	729.09%	-78.3%	-82.51%
Cash & Equivalents	$912.0M	$110.0M	$331.0M
Short-Term Investments		$0.00	$176.0M
Other Short-Term Assets	$193.0M	$323.0M	$469.0M
YoY Change	31.29%	-31.13%	-84.1%
Inventory	$258.0M	$197.0M	$320.0M
Prepaid Expenses
Receivables	$891.0M	$1.012B	$907.0M
Other Receivables	$689.0M	$653.0M	$273.0M
Total Short-Term Assets	$3.363B	$2.295B	$2.476B
YoY Change	46.54%	-7.31%	-75.15%
LONG-TERM ASSETS
Property, Plant & Equipment	$19.81B	$18.28B	$16.87B
YoY Change	8.39%	8.4%	13.31%
Goodwill	$87.00M
YoY Change	27.94%
Intangibles	$453.0M
YoY Change
Long-Term Investments	$3.720B	$5.001B	$3.825B
YoY Change	-25.61%	30.75%	92.99%
Other Assets	$600.0M	$2.411B	$2.695B
YoY Change	-1.32%	-10.54%	42.82%
Total Long-Term Assets	$26.87B	$26.22B	$23.92B
YoY Change	2.48%	9.58%	27.57%
TOTAL ASSETS
Total Short-Term Assets	$3.363B	$2.295B	$2.476B
Total Long-Term Assets	$26.87B	$26.22B	$23.92B
Total Assets	$30.23B	$28.51B	$26.40B
YoY Change	6.03%	8.0%	-8.07%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$900.0M	$551.0M	$894.0M
YoY Change	24.65%	-14.44%	-77.01%
Accrued Expenses	$311.0M	$264.0M	$280.0M
YoY Change	17.8%	-5.71%	5.66%
Deferred Revenue
YoY Change
Short-Term Debt	$158.0M	$618.0M	$503.0M
YoY Change	-74.43%	22.86%	-52.73%
Long-Term Debt Due	$349.0M	$573.0M	$410.0M
YoY Change	-39.09%	39.76%	5757.14%
Total Short-Term Liabilities	$3.786B	$3.888B	$3.612B
YoY Change	-2.62%	7.64%	-59.96%
LONG-TERM LIABILITIES
Long-Term Debt	$8.980B	$7.460B	$6.644B
YoY Change	20.38%	14.0%	45.93%
Other Long-Term Liabilities	$824.0M	$6.541B	$6.932B
YoY Change	12.11%	-5.64%	14.3%
Total Long-Term Liabilities	$824.0M	$14.00B	$13.58B
YoY Change	12.11%	3.9%	27.86%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.786B	$3.888B	$3.612B
Total Long-Term Liabilities	$824.0M	$14.00B	$13.58B
Total Liabilities	$4.610B	$19.41B	$18.43B
YoY Change	-0.28%	5.86%	-9.55%
SHAREHOLDERS EQUITY
Retained Earnings	$7.292B
YoY Change	4.6%
Common Stock	$2.036B
YoY Change	-15.8%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$8.990B	$9.107B	$7.969B
YoY Change
Total Liabilities & Shareholders Equity	$30.23B	$28.51B	$26.40B
YoY Change	6.03%	8.0%	-8.07%

Cashflow Statement

Concept	2010 Q4	2009	2008 Q4
OPERATING ACTIVITIES
Net Income	$283.0M	$1.119B	$322.0M
YoY Change	-2.75%	0.54%	11.42%
Depreciation, Depletion And Amortization	$223.0M	$775.0M	$179.0M
YoY Change	7.73%	12.81%	4.07%
Cash From Operating Activities	$552.0M	$1.875B	$386.0M
YoY Change	-6233.33%	57.43%	-22.49%
INVESTING ACTIVITIES
Capital Expenditures	-$1.340B	-$2.179B	-$401.0M
YoY Change	187.55%	-14.41%	-19.64%
Acquisitions
YoY Change
Other Investing Activities	$690.0M	$28.00M	-$389.0M
YoY Change	-392.37%	16.67%	68.4%
Cash From Investing Activities	-$650.0M	-$2.672B	-$790.0M
YoY Change	-7.41%	11.99%	8.22%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		-$51.00M
YoY Change		-105.1%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	463.0M	$576.0M	537.0M
YoY Change	612.31%	-32.87%	-367.16%
NET CHANGE
Cash From Operating Activities	552.0M	$1.875B	386.0M
Cash From Investing Activities	-650.0M	-$2.672B	-790.0M
Cash From Financing Activities	463.0M	$576.0M	537.0M
Net Change In Cash	365.0M	-$221.0M	133.0M
YoY Change	-156.5%	-34.42%	-130.72%
FREE CASH FLOW
Cash From Operating Activities	$552.0M	$1.875B	$386.0M
Capital Expenditures	-$1.340B	-$2.179B	-$401.0M
Free Cash Flow	$1.892B	$4.054B	$787.0M
YoY Change	314.0%	8.48%	-21.06%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2011	dei	Document Type DocumentType	8-K
CY2011	dei	Document Period End Date DocumentPeriodEndDate	2012-05-11
CY2011	dei	Amendment Flag AmendmentFlag	false
CY2011	dei	Entity Registrant Name EntityRegistrantName	Sempra Energy
CY2011	dei	Entity Central Index Key EntityCentralIndexKey	0001032208
CY2011	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2011	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2011	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2011	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2011	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2011Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	240590672	shares
CY2011Q4	dei	Entity Public Float EntityPublicFloat	12600000000	USD
CY2011	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2011
CY2011	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2011	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	10036000000	USD
CY2011	sre	Cost Of Natural Gas Electric Fuel And Purchased Power CostOfNaturalGasElectricFuelAndPurchasedPower	746000000	USD
CY2011	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	137000000	USD
CY2011	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	2788000000	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	976000000	USD
CY2011	us-gaap	Taxes Other TaxesOther	343000000	USD
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	26000000	USD
CY2011	us-gaap	Interest Expense InterestExpense	465000000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1723000000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	394000000	USD
CY2011	sre	Income Loss From Equity Method Investments Net Of Tax IncomeLossFromEquityMethodInvestmentsNetOfTax	52000000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	1381000000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	42000000	USD
CY2011	sre	Preferred Stock Dividends Of Subsidiaries PreferredStockDividendsOfSubsidiaries	8000000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	1331000000	USD
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.55
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	239720000	shares
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.51
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	241523000	shares
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.92
CY2010	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	9003000000	USD
CY2010	sre	Cost Of Natural Gas Electric Fuel And Purchased Power CostOfNaturalGasElectricFuelAndPurchasedPower	1046000000	USD
CY2010	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	88000000	USD
CY2010	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	2499000000	USD
CY2010	us-gaap	Depreciation And Amortization DepreciationAndAmortization	866000000	USD
CY2010	us-gaap	Taxes Other TaxesOther	327000000	USD
CY2010	us-gaap	Investment Income Interest InvestmentIncomeInterest	16000000	USD
CY2010	us-gaap	Interest Expense InterestExpense	436000000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	787000000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	133000000	USD
CY2010	sre	Income Loss From Equity Method Investments Net Of Tax IncomeLossFromEquityMethodInvestmentsNetOfTax	49000000	USD
CY2010	us-gaap	Profit Loss ProfitLoss	703000000	USD
CY2010	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-16000000	USD
CY2010	sre	Preferred Stock Dividends Of Subsidiaries PreferredStockDividendsOfSubsidiaries	10000000	USD
CY2010	us-gaap	Net Income Loss NetIncomeLoss	709000000	USD
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.90
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	244736000	shares
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.86
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	247942000	shares
CY2010	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.56
CY2009	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	8106000000	USD
CY2009	sre	Cost Of Natural Gas Electric Fuel And Purchased Power CostOfNaturalGasElectricFuelAndPurchasedPower	864000000	USD
CY2009	us-gaap	Gas Gathering Transportation Marketing And Processing Costs GasGatheringTransportationMarketingAndProcessingCosts	77000000	USD
CY2009	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	2467000000	USD
CY2009	us-gaap	Depreciation And Amortization DepreciationAndAmortization	775000000	USD
CY2009	us-gaap	Taxes Other TaxesOther	296000000	USD
CY2009	us-gaap	Investment Income Interest InvestmentIncomeInterest	21000000	USD
CY2009	us-gaap	Interest Expense InterestExpense	367000000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1476000000	USD
CY2009	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	422000000	USD
CY2009	sre	Income Loss From Equity Method Investments Net Of Tax IncomeLossFromEquityMethodInvestmentsNetOfTax	68000000	USD
CY2009	us-gaap	Profit Loss ProfitLoss	1122000000	USD
CY2009	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-7000000	USD
CY2009	sre	Preferred Stock Dividends Of Subsidiaries PreferredStockDividendsOfSubsidiaries	10000000	USD
CY2009	us-gaap	Net Income Loss NetIncomeLoss	1119000000	USD
CY2009	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.60
CY2009	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	243339000	shares
CY2009	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.52
CY2009	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	247384000	shares
CY2009	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.56
CY2009	sre	Write Off Of Long Lived Assets WriteOffOfLongLivedAssets	132000000	USD
CY2010	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	140000000	USD
CY2009	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	149000000	USD
CY2010	sre	Revenue From Utilities RevenueFromUtilities	7019000000	USD
CY2009	sre	Revenue From Utilities RevenueFromUtilities	6421000000	USD
CY2011	sre	Energy Related Businesses EnergyRelatedBusinesses	1714000000	USD
CY2010	sre	Energy Related Businesses EnergyRelatedBusinesses	1984000000	USD
CY2009	sre	Energy Related Businesses EnergyRelatedBusinesses	1685000000	USD
CY2011	sre	Revenue From Utilities RevenueFromUtilities	8322000000	USD
CY2011	sre	Utilities Cost Of Natural Gas UtilitiesCostOfNaturalGas	1866000000	USD
CY2011	sre	Cost Of Electric Fuel And Purchased Power From Utilities CostOfElectricFuelAndPurchasedPowerFromUtilities	1397000000	USD
CY2010	sre	Utilities Cost Of Natural Gas UtilitiesCostOfNaturalGas	2012000000	USD
CY2010	sre	Cost Of Electric Fuel And Purchased Power From Utilities CostOfElectricFuelAndPurchasedPowerFromUtilities	637000000	USD
CY2009	sre	Utilities Cost Of Natural Gas UtilitiesCostOfNaturalGas	1645000000	USD
CY2009	sre	Cost Of Electric Fuel And Purchased Power From Utilities CostOfElectricFuelAndPurchasedPowerFromUtilities	672000000	USD
CY2011	sre	Equity Earnings Losses From Joint Venture EquityEarningsLossesFromJointVenture	-24000000	USD
CY2010	sre	Equity Earnings Losses From Joint Venture EquityEarningsLossesFromJointVenture	-314000000	USD
CY2009	sre	Equity Earnings Losses From Joint Venture EquityEarningsLossesFromJointVenture	463000000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	33000000	USD
CY2010	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	22000000	USD
CY2009	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	36000000	USD
CY2011	us-gaap	Business Combination Step Acquisition Equity Interest In Acquiree Remeasurement Gain Or Loss BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGainOrLoss	277000000	USD
CY2011	sre	Litigation Expense LitigationExpense	37000000	USD
CY2010	sre	Litigation Expense LitigationExpense	169000000	USD
CY2009	sre	Litigation Expense LitigationExpense	4000000	USD
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	130000000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	252000000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	912000000	USD
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	24000000	USD
CY2010Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	131000000	USD
CY2011Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1198000000	USD
CY2010Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	891000000	USD
CY2011Q4	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	147000000	USD
CY2010Q4	us-gaap	Accounts Notes And Loans Receivable Net Current AccountsNotesAndLoansReceivableNetCurrent	141000000	USD
CY2010Q4	us-gaap	Due From Affiliate Current DueFromAffiliateCurrent	34000000	USD
CY2010Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	257000000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	75000000	USD
CY2011Q4	us-gaap	Inventory Net InventoryNet	346000000	USD
CY2010Q4	us-gaap	Inventory Net InventoryNet	258000000	USD
CY2011Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	89000000	USD
CY2010Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	90000000	USD
CY2011Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	85000000	USD
CY2010Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	81000000	USD
CY2011Q4	sre	Legal Settlement Receivable LegalSettlementReceivable	10000000	USD
CY2011Q4	us-gaap	Other Assets Current OtherAssetsCurrent	143000000	USD
CY2010Q4	us-gaap	Other Assets Current OtherAssetsCurrent	193000000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	2332000000	USD
CY2010Q4	us-gaap	Assets Current AssetsCurrent	3363000000	USD
CY2011Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	22000000	USD
CY2011Q4	sre	Regulatory Assets Arising From Pension And Other Postretirement Benefit Obligations RegulatoryAssetsArisingFromPensionAndOtherPostretirementBenefitObligations	1126000000	USD
CY2010Q4	sre	Regulatory Assets Arising From Pension And Other Postretirement Benefit Obligations RegulatoryAssetsArisingFromPensionAndOtherPostretirementBenefitObligations	869000000	USD
CY2011Q4	sre	Regulatory Assets Arising From Wildfire Litigation Costs RegulatoryAssetsArisingFromWildfireLitigationCosts	594000000	USD
CY2011Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1060000000	USD
CY2010Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	934000000	USD
CY2011Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	804000000	USD
CY2010Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	769000000	USD
CY2011Q4	sre	Investment In Joint Venture InvestmentInJointVenture	126000000	USD
CY2010Q4	sre	Investment In Joint Venture InvestmentInJointVenture	787000000	USD
CY2011Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	1545000000	USD
CY2010Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	2164000000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	691000000	USD
CY2010Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	600000000	USD
CY2011Q4	sre	Total Investments And Other Assets TotalInvestmentsAndOtherAssets	7452000000	USD
CY2010Q4	sre	Total Investments And Other Assets TotalInvestmentsAndOtherAssets	7054000000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	31192000000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	27023000000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	7727000000	USD
CY2010Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	7209000000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	23465000000	USD
CY2010Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	19814000000	USD
CY2011Q4	us-gaap	Assets Assets	33249000000	USD
CY2010Q4	us-gaap	Assets Assets	30231000000	USD
CY2010Q4	sre	Legal Settlement Receivable LegalSettlementReceivable	300000000	USD
CY2010Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	27000000	USD
CY2010Q4	sre	Regulatory Assets Arising From Wildfire Litigation Costs RegulatoryAssetsArisingFromWildfireLitigationCosts	364000000	USD
CY2010Q4	us-gaap	Goodwill Goodwill	87000000	USD
CY2010Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	453000000	USD
CY2011Q4	us-gaap	Goodwill Goodwill	1036000000	USD
CY2011Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	448000000	USD
CY2011Q4	sre	Regulatory Balancing Accounts Undercollected RegulatoryBalancingAccountsUndercollected	38000000	USD
CY2011Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	449000000	USD
CY2010Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	158000000	USD
CY2011Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	983000000	USD
CY2010Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	755000000	USD
CY2011Q4	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	124000000	USD
CY2010Q4	us-gaap	Accounts Payable Other Current AccountsPayableOtherCurrent	109000000	USD
CY2010Q4	us-gaap	Due To Affiliate Current DueToAffiliateCurrent	36000000	USD
CY2011Q4	us-gaap	Interest And Dividends Payable Current InterestAndDividendsPayableCurrent	219000000	USD
CY2010Q4	us-gaap	Interest And Dividends Payable Current InterestAndDividendsPayableCurrent	188000000	USD
CY2011Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	323000000	USD
CY2010Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	311000000	USD
CY2011Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	336000000	USD
CY2010Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	349000000	USD
CY2011Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	92000000	USD
CY2010Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	106000000	USD
CY2011Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	142000000	USD
CY2010Q4	us-gaap	Customer Deposits Current CustomerDepositsCurrent	129000000	USD
CY2011Q4	us-gaap	Litigation Reserve Current LitigationReserveCurrent	586000000	USD
CY2010Q4	us-gaap	Litigation Reserve Current LitigationReserveCurrent	639000000	USD
CY2011Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	615000000	USD
CY2010Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	765000000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	4152000000	USD
CY2010Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3786000000	USD
CY2011Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	10078000000	USD
CY2010Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	8980000000	USD
CY2011Q4	us-gaap	Customer Advances For Construction CustomerAdvancesForConstruction	142000000	USD
CY2010Q4	us-gaap	Customer Advances For Construction CustomerAdvancesForConstruction	154000000	USD
CY2011Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	1423000000	USD
CY2010Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	1105000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1520000000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	1545000000	USD
CY2011Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	49000000	USD
CY2010Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	50000000	USD
CY2011Q4	sre	Regulatory Liabilities Arising From Removal Obligations RegulatoryLiabilitiesArisingFromRemovalObligations	2551000000	USD
CY2010Q4	sre	Regulatory Liabilities Arising From Removal Obligations RegulatoryLiabilitiesArisingFromRemovalObligations	2630000000	USD
CY2011Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	1905000000	USD
CY2010Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	1449000000	USD
CY2011Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	87000000	USD
CY2010Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	138000000	USD
CY2011Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	301000000	USD
CY2010Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	290000000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	784000000	USD
CY2010Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	824000000	USD
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CY2010Q4	sre	Total Deferred Credits And Other Liabilities TotalDeferredCreditsAndOtherLiabilities	8185000000	USD
CY2011Q4	sre	Contingently Redeemable Preferred Stock Of Subsidiary ContingentlyRedeemablePreferredStockOfSubsidiary	79000000	USD
CY2010Q4	sre	Contingently Redeemable Preferred Stock Of Subsidiary ContingentlyRedeemablePreferredStockOfSubsidiary	79000000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	8162000000	USD
CY2010Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	7292000000	USD
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CY2010Q4	us-gaap	Deferred Compensation Equity DeferredCompensationEquity	8000000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	9775000000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	8990000000	USD
CY2011Q4	sre	Preferred Stock Of Subsidiaries PreferredStockOfSubsidiaries	20000000	USD
CY2010Q4	sre	Preferred Stock Of Subsidiaries PreferredStockOfSubsidiaries	100000000	USD
CY2011Q4	us-gaap	Minority Interest MinorityInterest	383000000	USD
CY2010Q4	us-gaap	Minority Interest MinorityInterest	111000000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10178000000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9201000000	USD
CY2011Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	33249000000	USD
CY2010Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	30231000000	USD
CY2011Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2010Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	750000000	shares
CY2010Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	750000000	shares
CY2011Q4	sre	Variable Interest Entities Consolidated Carrying Amount Net Property Plant And Equipment VariableInterestEntitiesConsolidatedCarryingAmountNetPropertyPlantAndEquipment	494000000	USD
CY2010Q4	sre	Variable Interest Entities Consolidated Carrying Amount Net Property Plant And Equipment VariableInterestEntitiesConsolidatedCarryingAmountNetPropertyPlantAndEquipment	516000000	USD
CY2011Q4	sre	Variable Interest Entities Consolidated Carrying Amount Long Term Debt VariableInterestEntitiesConsolidatedCarryingAmountLongTermDebt	345000000	USD
CY2010Q4	sre	Variable Interest Entities Consolidated Carrying Amount Long Term Debt VariableInterestEntitiesConsolidatedCarryingAmountLongTermDebt	355000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	173000000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	2104000000	USD
CY2010Q4	us-gaap	Common Stock Value CommonStockValue	2036000000	USD
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CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-330000000	USD
CY2011Q4	sre	Regulatory Balancing Accounts Overcollected RegulatoryBalancingAccountsOvercollected	105000000	USD
CY2010Q4	sre	Regulatory Balancing Accounts Overcollected RegulatoryBalancingAccountsOvercollected	241000000	USD
CY2011Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	5000000	USD
CY2011	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	3000000	USD
CY2010	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	37000000	USD
CY2009	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	295000000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	61000000	USD
CY2010	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	-243000000	USD
CY2009	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	567000000	USD
CY2011	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-2000000	USD
CY2010	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-13000000	USD
CY2009	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	30000000	USD
CY2011	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther	-15000000	USD
CY2010	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther	-55000000	USD
CY2009	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities Other AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesOther	-48000000	USD
CY2011	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	224000000	USD
CY2010	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-100000000	USD
CY2009	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	256000000	USD
CY2011	sre	Distributions From Joint Venture DistributionsFromJointVenture	53000000	USD
CY2010	sre	Distributions From Joint Venture DistributionsFromJointVenture	198000000	USD
CY2009	sre	Distributions From Joint Venture DistributionsFromJointVenture	407000000	USD
CY2011	sre	Increase Decrease In Noncurrent Assets IncreaseDecreaseInNoncurrentAssets	-34000000	USD
CY2010	sre	Increase Decrease In Noncurrent Assets IncreaseDecreaseInNoncurrentAssets	-54000000	USD
CY2009	sre	Increase Decrease In Noncurrent Assets IncreaseDecreaseInNoncurrentAssets	-139000000	USD
CY2011	sre	Increase Decrease In Noncurrent Liabilities IncreaseDecreaseInNoncurrentLiabilities	-5000000	USD
CY2010	sre	Increase Decrease In Noncurrent Liabilities IncreaseDecreaseInNoncurrentLiabilities	-5000000	USD
CY2009	sre	Increase Decrease In Noncurrent Liabilities IncreaseDecreaseInNoncurrentLiabilities	-94000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1867000000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2154000000	USD
CY2009	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1875000000	USD
CY2011	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2844000000	USD
CY2010	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	2062000000	USD
CY2009	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	1912000000	USD
CY2011	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	2000000	USD
CY2010	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	303000000	USD
CY2009	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	179000000	USD
CY2011	sre	Expeditures For Investments And Acquisition Of Businesses Net Of Cash Acquired ExpedituresForInvestmentsAndAcquisitionOfBusinessesNetOfCashAcquired	-941000000	USD
CY2010	sre	Expeditures For Investments And Acquisition Of Businesses Net Of Cash Acquired ExpedituresForInvestmentsAndAcquisitionOfBusinessesNetOfCashAcquired	-611000000	USD
CY2009	sre	Expeditures For Investments And Acquisition Of Businesses Net Of Cash Acquired ExpedituresForInvestmentsAndAcquisitionOfBusinessesNetOfCashAcquired	-939000000	USD
CY2011	sre	Distributions From Investments DistributionsFromInvestments	64000000	USD
CY2010	sre	Distributions From Investments DistributionsFromInvestments	371000000	USD
CY2009	sre	Distributions From Investments DistributionsFromInvestments	23000000	USD
CY2011	sre	Purchases Of Nuclear Decommissioning And Other Trust Assets PurchasesOfNuclearDecommissioningAndOtherTrustAssets	755000000	USD
CY2010	sre	Purchases Of Nuclear Decommissioning And Other Trust Assets PurchasesOfNuclearDecommissioningAndOtherTrustAssets	371000000	USD
CY2009	sre	Purchases Of Nuclear Decommissioning And Other Trust Assets PurchasesOfNuclearDecommissioningAndOtherTrustAssets	267000000	USD
CY2011	sre	Proceeds From Sales By Nuclear Decommissioning And Other Trusts ProceedsFromSalesByNuclearDecommissioningAndOtherTrusts	753000000	USD
CY2010	sre	Proceeds From Sales By Nuclear Decommissioning And Other Trusts ProceedsFromSalesByNuclearDecommissioningAndOtherTrusts	372000000	USD
CY2009	sre	Proceeds From Sales By Nuclear Decommissioning And Other Trusts ProceedsFromSalesByNuclearDecommissioningAndOtherTrusts	230000000	USD
CY2011	sre	Decrease In Restricted Cash DecreaseInRestrictedCash	653000000	USD
CY2010	sre	Decrease In Restricted Cash DecreaseInRestrictedCash	195000000	USD
CY2009	sre	Decrease In Restricted Cash DecreaseInRestrictedCash	37000000	USD
CY2011	sre	Increase In Restricted Cash IncreaseInRestrictedCash	541000000	USD
CY2010	sre	Increase In Restricted Cash IncreaseInRestrictedCash	318000000	USD
CY2009	us-gaap	Proceeds From Payments For Long Term Loans For Related Parties ProceedsFromPaymentsForLongTermLoansForRelatedParties	100000000	USD
CY2011	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	31000000	USD
CY2010	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	11000000	USD
CY2009	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	28000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3070000000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1283000000	USD
CY2009	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2672000000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	440000000	USD
CY2010	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	364000000	USD
CY2009	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	341000000	USD
CY2011	sre	Preferred Dividends Paid By Subsidiaries PreferredDividendsPaidBySubsidiaries	8000000	USD
CY2010	sre	Preferred Dividends Paid By Subsidiaries PreferredDividendsPaidBySubsidiaries	10000000	USD
CY2009	sre	Preferred Dividends Paid By Subsidiaries PreferredDividendsPaidBySubsidiaries	10000000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	28000000	USD
CY2010	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	40000000	USD
CY2009	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	73000000	USD
CY2009	us-gaap	Retained Earnings Cumulative Effect Of Change In Accounting Principle Net Of Tax RetainedEarningsCumulativeEffectOfChangeInAccountingPrincipleNetOfTax	-7000000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	48000000	USD
CY2011	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	18000000	USD
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	502000000	USD
CY2009	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	22000000	USD
CY2011	sre	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	2098000000	USD
CY2010	sre	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	1125000000	USD
CY2009	sre	Proceeds From Issuance Of Debt ProceedsFromIssuanceOfDebt	2151000000	USD
CY2011	sre	Payments On Debt PaymentsOnDebt	482000000	USD
CY2010	sre	Payments On Debt PaymentsOnDebt	905000000	USD
CY2009	sre	Payments On Debt PaymentsOnDebt	435000000	USD
CY2011	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-498000000	USD
CY2010	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	568000000	USD
CY2009	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-659000000	USD
CY2009	us-gaap	Increase Decrease In Notes Payable Related Parties IncreaseDecreaseInNotesPayableRelatedParties	-100000000	USD
CY2011	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-23000000	USD
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-21000000	USD
CY2009	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	13000000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	534000000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-69000000	USD
CY2009	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	576000000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-660000000	USD
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	802000000	USD
CY2009	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-221000000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	110000000	USD
CY2008Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	331000000	USD
CY2010	sre	Distributions From Joint Venture Investing Activities DistributionsFromJointVentureInvestingActivities	849000000	USD
CY2009	sre	Increase In Restricted Cash IncreaseInRestrictedCash	45000000	USD
CY2009	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	50000000	USD
CY2009	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	94000000	USD
CY2011	us-gaap	Payments For Repurchase Of Redeemable Preferred Stock PaymentsForRepurchaseOfRedeemablePreferredStock	80000000	USD
CY2011	us-gaap	Payments To Acquire Additional Interest In Subsidiaries PaymentsToAcquireAdditionalInterestInSubsidiaries	43000000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	9000000	USD
CY2011	sre	Distributions From Joint Venture Investing Activities DistributionsFromJointVentureInvestingActivities	570000000	USD
CY2010	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	192000000	USD
CY2011	us-gaap	Interest Paid Net InterestPaidNet	440000000	USD
CY2010	us-gaap	Interest Paid Net InterestPaidNet	415000000	USD
CY2009	us-gaap	Interest Paid Net InterestPaidNet	326000000	USD
CY2011	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	144000000	USD
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	68000000	USD
CY2009	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	112000000	USD
CY2011	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	32000000	USD
CY2010	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	-89000000	USD
CY2009	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	190000000	USD
CY2011	sre	Increase Decrease In Income Taxes Net IncreaseDecreaseInIncomeTaxesNet	-269000000	USD
CY2010	sre	Increase Decrease In Income Taxes Net IncreaseDecreaseInIncomeTaxesNet	-12000000	USD
CY2009	sre	Increase Decrease In Income Taxes Net IncreaseDecreaseInIncomeTaxesNet	17000000	USD
CY2011	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	84000000	USD
CY2010	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	62000000	USD
CY2009	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-124000000	USD
CY2011	us-gaap	Increase Decrease In Balancing Account Utility IncreaseDecreaseInBalancingAccountUtility	150000000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-295000000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-310000000	USD
CY2010	us-gaap	Increase Decrease In Balancing Account Utility IncreaseDecreaseInBalancingAccountUtility	155000000	USD
CY2009	us-gaap	Increase Decrease In Balancing Account Utility IncreaseDecreaseInBalancingAccountUtility	-42000000	USD
CY2011	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	2000000	USD
CY2010	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	-6000000	USD
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CY2009	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-685000000	USD
CY2011	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	60000000	USD
CY2010	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	79000000	USD
CY2009	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-109000000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-580000000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-179000000	USD
CY2009	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-790000000	USD
CY2009	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	50000000	USD
CY2011	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	368000000	USD
CY2010	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	341000000	USD
CY2009	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	247000000	USD
CY2010	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	303000000	USD
CY2010	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	292000000	USD
CY2010	us-gaap	Liabilities Assumed LiabilitiesAssumed	11000000	USD
CY2011	us-gaap	Fair Value Of Assets Acquired FairValueOfAssetsAcquired	2833000000	USD
CY2011	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	611000000	USD
CY2011	sre	Fair Value Of Equity Method Investments Immediately Prior To The Acquisition Duration FairValueOfEquityMethodInvestmentsImmediatelyPriorToTheAcquisitionDuration	882000000	USD
CY2011	sre	Fair Value Of Noncontrolling Interests Duration FairValueOfNoncontrollingInterestsDuration	279000000	USD
CY2011	sre	Business Acquisition Cash Consideration Accrued BusinessAcquisitionCashConsiderationAccrued	32000000	USD
CY2011	us-gaap	Liabilities Assumed LiabilitiesAssumed	1029000000	USD
CY2011Q4	us-gaap	Dividends Payable Amount DividendsPayableAmount	120000000	USD
CY2010Q4	us-gaap	Dividends Payable Amount DividendsPayableAmount	96000000	USD
CY2009Q4	us-gaap	Dividends Payable Amount DividendsPayableAmount	99000000	USD
CY2011Q4	sre	Return Of Investment ReturnOfInvestment	180000000	USD
CY2011Q4	sre	Cancellation Of Debt CancellationOfDebt	180000000	USD
CY2011Q4	sre	Conversion Of Debt To Equity ConversionOfDebtToEquity	30000000	USD
CY2008Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8309000000	USD
CY2009	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	38000000	USD
CY2009	us-gaap	Dividends Common Stock DividendsCommonStock	383000000	USD
CY2009	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	114000000	USD
CY2009	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	23000000	USD
CY2009	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	22000000	USD
CY2009	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	15000000	USD
CY2009	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	7000000	USD
CY2009	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	9000000	USD
CY2009	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	94000000	USD
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9244000000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	38000000	USD
CY2010	us-gaap	Dividends Common Stock DividendsCommonStock	381000000	USD
CY2010	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	64000000	USD
CY2010	us-gaap	Adjustments To Additional Paid In Capital Tax Effect From Share Based Compensation AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation	5000000	USD
CY2010	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	502000000	USD
CY2010	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	18000000	USD
CY2010	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	24000000	USD
CY2009	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1263000000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	749000000	USD
CY2009	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	141000000	USD
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	46000000	USD
CY2011	us-gaap	Dividends Common Stock DividendsCommonStock	461000000	USD
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	28000000	USD
CY2011	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	18000000	USD
CY2011	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	20000000	USD
CY2011	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	16000000	USD
CY2011	us-gaap	Minority Interest Increase From Stock Issuance MinorityInterestIncreaseFromStockIssuance	36000000	USD
CY2011	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	43000000	USD
CY2011	sre	Redemption Of Preferred Stock Of Subsidiary RedemptionOfPreferredStockOfSubsidiary	80000000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	1192000000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	-189000000	USD
CY2010Q4	sre	Overcollected Regulatory Balancing Accounts OvercollectedRegulatoryBalancingAccounts	733000000	USD
CY2010Q4	sre	Undercollected Regulatory Balancing Accounts UndercollectedRegulatoryBalancingAccounts	492000000	USD
CY2010Q4	sre	Net Overcollected Regulatory Balancing Accounts NetOvercollectedRegulatoryBalancingAccounts	241000000	USD
CY2011Q4	sre	Overcollected Regulatory Balancing Accounts OvercollectedRegulatoryBalancingAccounts	709000000	USD
CY2011Q4	sre	Undercollected Regulatory Balancing Accounts UndercollectedRegulatoryBalancingAccounts	642000000	USD
CY2011Q4	sre	Net Overcollected Regulatory Balancing Accounts NetOvercollectedRegulatoryBalancingAccounts	67000000	USD
CY2011Q4	sre	Total Regulatory Assets Current TotalRegulatoryAssetsCurrent	89000000	USD
CY2011Q4	sre	Total Regulatory Assets Noncurrent TotalRegulatoryAssetsNoncurrent	2780000000	USD
CY2011Q4	sre	Total Regulatory Liability Current TotalRegulatoryLiabilityCurrent	1000000	USD
CY2011Q4	sre	Total Regulatory Liability Noncurrent TotalRegulatoryLiabilityNoncurrent	2638000000	USD
CY2011Q4	us-gaap	Net Regulatory Assets NetRegulatoryAssets	230000000	USD
CY2010Q4	sre	Total Regulatory Assets Current TotalRegulatoryAssetsCurrent	90000000	USD
CY2010Q4	sre	Total Regulatory Assets Noncurrent TotalRegulatoryAssetsNoncurrent	2167000000	USD
CY2010Q4	sre	Total Regulatory Liability Current TotalRegulatoryLiabilityCurrent	8000000	USD
CY2010Q4	sre	Total Regulatory Liability Noncurrent TotalRegulatoryLiabilityNoncurrent	2768000000	USD
CY2010Q4	us-gaap	Net Regulatory Assets NetRegulatoryAssets	-519000000	USD
CY2011Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	195000000	USD
CY2010Q4	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	152000000	USD
CY2011Q4	sre	Energy Related Inventory Materials And Supplies EnergyRelatedInventoryMaterialsAndSupplies	151000000	USD
CY2010Q4	sre	Energy Related Inventory Materials And Supplies EnergyRelatedInventoryMaterialsAndSupplies	106000000	USD
CY2011Q4	sre	Accumulated Depreciation For Assets Under Capital Leases Other Non Utility AccumulatedDepreciationForAssetsUnderCapitalLeasesOtherNonUtility	15000000	USD
CY2011	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	40000000	USD
CY2011	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	-99000000	USD
CY2011	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	26000000	USD
CY2011	sre	Capitalized Financing Costs CapitalizedFinancingCosts	165000000	USD
CY2010	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	24000000	USD
CY2010	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	-57000000	USD
CY2010	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	33000000	USD
CY2010	sre	Capitalized Financing Costs CapitalizedFinancingCosts	114000000	USD
CY2009	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	15000000	USD
CY2009	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	-39000000	USD
CY2009	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	73000000	USD
CY2009	sre	Capitalized Financing Costs CapitalizedFinancingCosts	127000000	USD
CY2011Q4	sre	Intangible Assets Gross IntangibleAssetsGross	481000000	USD
CY2011Q4	sre	Intangible Assets Net IntangibleAssetsNet	448000000	USD
CY2010Q4	sre	Intangible Assets Gross IntangibleAssetsGross	476000000	USD
CY2010Q4	sre	Intangible Assets Net IntangibleAssetsNet	453000000	USD
CY2011Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	33000000	USD
CY2010Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	23000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Cash And Cash Equivalents AmountsAssociatedWithVariableInterestEntitiesCashAndCashEquivalents	12000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Long Term Debt AmountsAssociatedWithVariableInterestEntitiesLongTermDebt	345000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Fixed Price Contracts And Other Derivatives Noncurrent Liability AmountsAssociatedWithVariableInterestEntitiesFixedPriceContractsAndOtherDerivativesNoncurrentLiability	65000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Deferred Credits And Other AmountsAssociatedWithVariableInterestEntitiesDeferredCreditsAndOther	4000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Other Noncontrolling Interests AmountsAssociatedWithVariableInterestEntitiesOtherNoncontrollingInterests	102000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Inventories AmountsAssociatedWithVariableInterestEntitiesInventories	2000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Inventories AmountsAssociatedWithVariableInterestEntitiesInventories	2000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Total Current Assets AmountsAssociatedWithVariableInterestEntitiesTotalCurrentAssets	29000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Sundry AmountsAssociatedWithVariableInterestEntitiesSundry	6000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Property Plant And Equipment Net AmountsAssociatedWithVariableInterestEntitiesPropertyPlantAndEquipmentNet	494000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Total Assets AmountsAssociatedWithVariableInterestEntitiesTotalAssets	551000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Fixed Price Contracts And Other Derivatives Current Liability AmountsAssociatedWithVariableInterestEntitiesFixedPriceContractsAndOtherDerivativesCurrentLiability	16000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Other Current Liabilities AmountsAssociatedWithVariableInterestEntitiesOtherCurrentLiabilities	9000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Total Current Liabilities AmountsAssociatedWithVariableInterestEntitiesTotalCurrentLiabilities	35000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Total Liabilities And Equity AmountsAssociatedWithVariableInterestEntitiesTotalLiabilitiesAndEquity	551000000	USD
CY2011	sre	Amounts Associated With Variable Interest Entities Cost Of Electric Fuel And Purchased Power AmountsAssociatedWithVariableInterestEntitiesCostOfElectricFuelAndPurchasedPower	-72000000	USD
CY2011	sre	Amounts Associated With Variable Interest Entities Operation And Maintenance AmountsAssociatedWithVariableInterestEntitiesOperationAndMaintenance	19000000	USD
CY2011	sre	Amounts Associated With Variable Interest Entities Depreciation And Amortization AmountsAssociatedWithVariableInterestEntitiesDepreciationAndAmortization	22000000	USD
CY2011	sre	Amounts Associated With Variable Interest Entities Total Operating Expenses AmountsAssociatedWithVariableInterestEntitiesTotalOperatingExpenses	-31000000	USD
CY2011	sre	Amounts Associated With Variable Interest Entities Operating Income AmountsAssociatedWithVariableInterestEntitiesOperatingIncome	31000000	USD
CY2011	sre	Amounts Associated With Variable Interest Entities Other Income Expense Net AmountsAssociatedWithVariableInterestEntitiesOtherIncomeExpenseNet	-1000000	USD
CY2011	sre	Amounts Associated With Variable Interest Entities Interest Expense AmountsAssociatedWithVariableInterestEntitiesInterestExpense	11000000	USD
CY2011	sre	Amounts Associated With Variable Interest Entities Net Income AmountsAssociatedWithVariableInterestEntitiesNetIncome	19000000	USD
CY2011	sre	Amounts Associated With Variable Interest Entities Earnings Losses Attributable Noncontrolling Interests AmountsAssociatedWithVariableInterestEntitiesEarningsLossesAttributableNoncontrollingInterests	19000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Other Current Assets AmountsAssociatedWithVariableInterestEntitiesOtherCurrentAssets	1000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Cash And Cash Equivalents AmountsAssociatedWithVariableInterestEntitiesCashAndCashEquivalents	10000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Accounts Receivable Other AmountsAssociatedWithVariableInterestEntitiesAccountsReceivableOther	-1000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Total Current Assets AmountsAssociatedWithVariableInterestEntitiesTotalCurrentAssets	18000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Sundry AmountsAssociatedWithVariableInterestEntitiesSundry	6000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Property Plant And Equipment Net AmountsAssociatedWithVariableInterestEntitiesPropertyPlantAndEquipmentNet	516000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Total Assets AmountsAssociatedWithVariableInterestEntitiesTotalAssets	540000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Current Portion Long Term Debt AmountsAssociatedWithVariableInterestEntitiesCurrentPortionLongTermDebt	10000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Fixed Price Contracts And Other Derivatives Current Liability AmountsAssociatedWithVariableInterestEntitiesFixedPriceContractsAndOtherDerivativesCurrentLiability	17000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Other Current Liabilities AmountsAssociatedWithVariableInterestEntitiesOtherCurrentLiabilities	1000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Total Current Liabilities AmountsAssociatedWithVariableInterestEntitiesTotalCurrentLiabilities	28000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Long Term Debt AmountsAssociatedWithVariableInterestEntitiesLongTermDebt	355000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Fixed Price Contracts And Other Derivatives Noncurrent Liability AmountsAssociatedWithVariableInterestEntitiesFixedPriceContractsAndOtherDerivativesNoncurrentLiability	41000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Deferred Credits And Other AmountsAssociatedWithVariableInterestEntitiesDeferredCreditsAndOther	3000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Other Noncontrolling Interests AmountsAssociatedWithVariableInterestEntitiesOtherNoncontrollingInterests	113000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Total Liabilities And Equity AmountsAssociatedWithVariableInterestEntitiesTotalLiabilitiesAndEquity	540000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Operating Revenues Electric AmountsAssociatedWithVariableInterestEntitiesOperatingRevenuesElectric	-1000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Total Operating Revenues AmountsAssociatedWithVariableInterestEntitiesTotalOperatingRevenues	-4000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Cost Of Electric Fuel And Purchased Power AmountsAssociatedWithVariableInterestEntitiesCostOfElectricFuelAndPurchasedPower	-82000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Operation And Maintenance AmountsAssociatedWithVariableInterestEntitiesOperationAndMaintenance	20000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Depreciation And Amortization AmountsAssociatedWithVariableInterestEntitiesDepreciationAndAmortization	26000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Total Operating Expenses AmountsAssociatedWithVariableInterestEntitiesTotalOperatingExpenses	-36000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Operating Income AmountsAssociatedWithVariableInterestEntitiesOperatingIncome	32000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Other Income Expense Net AmountsAssociatedWithVariableInterestEntitiesOtherIncomeExpenseNet	-34000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Interest Expense AmountsAssociatedWithVariableInterestEntitiesInterestExpense	14000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Net Income AmountsAssociatedWithVariableInterestEntitiesNetIncome	-16000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Restricted Cash Current AmountsAssociatedWithVariableInterestEntitiesRestrictedCashCurrent	6000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Earnings Losses Attributable Noncontrolling Interests AmountsAssociatedWithVariableInterestEntitiesEarningsLossesAttributableNoncontrollingInterests	-16000000	USD
CY2009	sre	Amounts Associated With Variable Interest Entities Other Income Expense Net AmountsAssociatedWithVariableInterestEntitiesOtherIncomeExpenseNet	27000000	USD
CY2009	sre	Amounts Associated With Variable Interest Entities Net Income AmountsAssociatedWithVariableInterestEntitiesNetIncome	24000000	USD
CY2009	sre	Amounts Associated With Variable Interest Entities Earnings Losses Attributable Noncontrolling Interests AmountsAssociatedWithVariableInterestEntitiesEarningsLossesAttributableNoncontrollingInterests	24000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Current Portion Long Term Debt AmountsAssociatedWithVariableInterestEntitiesCurrentPortionLongTermDebt	10000000	USD
CY2010	sre	Amounts Associated With Variable Interest Entities Operating Revenues Gas AmountsAssociatedWithVariableInterestEntitiesOperatingRevenuesGas	-3000000	USD
CY2009	sre	Amounts Associated With Variable Interest Entities Operating Revenues Electric AmountsAssociatedWithVariableInterestEntitiesOperatingRevenuesElectric	-1000000	USD
CY2009	sre	Amounts Associated With Variable Interest Entities Total Operating Revenues AmountsAssociatedWithVariableInterestEntitiesTotalOperatingRevenues	-1000000	USD
CY2009	sre	Amounts Associated With Variable Interest Entities Cost Of Electric Fuel And Purchased Power AmountsAssociatedWithVariableInterestEntitiesCostOfElectricFuelAndPurchasedPower	-13000000	USD
CY2009	sre	Amounts Associated With Variable Interest Entities Operation And Maintenance AmountsAssociatedWithVariableInterestEntitiesOperationAndMaintenance	7000000	USD
CY2009	sre	Amounts Associated With Variable Interest Entities Depreciation And Amortization AmountsAssociatedWithVariableInterestEntitiesDepreciationAndAmortization	7000000	USD
CY2009	sre	Amounts Associated With Variable Interest Entities Total Operating Expenses AmountsAssociatedWithVariableInterestEntitiesTotalOperatingExpenses	1000000	USD
CY2009	sre	Amounts Associated With Variable Interest Entities Operating Income AmountsAssociatedWithVariableInterestEntitiesOperatingIncome	-2000000	USD
CY2009	sre	Amounts Associated With Variable Interest Entities Interest Expense AmountsAssociatedWithVariableInterestEntitiesInterestExpense	1000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Restricted Cash Current AmountsAssociatedWithVariableInterestEntitiesRestrictedCashCurrent	7000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Restricted Cash Noncurrent AmountsAssociatedWithVariableInterestEntitiesRestrictedCashNoncurrent	22000000	USD
CY2011Q4	sre	Amounts Associated With Variable Interest Entities Accounts Receivable Trade AmountsAssociatedWithVariableInterestEntitiesAccountsReceivableTrade	7000000	USD
CY2010Q4	sre	Amounts Associated With Variable Interest Entities Other Current Assets AmountsAssociatedWithVariableInterestEntitiesOtherCurrentAssets	1000000	USD
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1468000000	USD
CY2009Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1313000000	USD
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	82000000	USD
CY2010	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	77000000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	12000000	USD
CY2010	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	10000000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1000000	USD
CY2010	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	17000000	USD
CY2011	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	364000000	USD
CY2010	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	85000000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1925000000	USD
CY2010Q4	sre	Asset Retirement Obligations Assumptions Used Discount Rate AssetRetirementObligationsAssumptionsUsedDiscountRate	0.0513	pure
CY2009Q4	sre	Asset Retirement Obligations Assumptions Used Discount Rate AssetRetirementObligationsAssumptionsUsedDiscountRate	0.0554	pure
CY2011Q4	sre	Asset Retirement Obligations Assumptions Used Discount Rate AssetRetirementObligationsAssumptionsUsedDiscountRate	0.04	pure
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-359000000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	-229000000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-31000000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-15000000	USD
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	1000000	USD
CY2011Q4	sre	Accumulated Other Comprehensive Income Loss Unamortized Net Actuarial Gain Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossUnamortizedNetActuarialGainLossNetOfTax	-100000000	USD
CY2010Q4	sre	Accumulated Other Comprehensive Income Loss Unamortized Net Actuarial Gain Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossUnamortizedNetActuarialGainLossNetOfTax	-88000000	USD
CY2011Q4	sre	Accumulated Other Comprehensive Income Loss Unamortized Prior Service Credit Cost Net Of Tax AccumulatedOtherComprehensiveIncomeLossUnamortizedPriorServiceCreditCostNetOfTax	1000000	USD
CY2010Q4	sre	Accumulated Other Comprehensive Income Loss Unamortized Prior Service Credit Cost Net Of Tax AccumulatedOtherComprehensiveIncomeLossUnamortizedPriorServiceCreditCostNetOfTax	1000000	USD
CY2011Q4	sre	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Income Tax Expense Benefit AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectIncomeTaxExpenseBenefit	-22000000	USD
CY2010Q4	sre	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Income Tax Expense Benefit AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectIncomeTaxExpenseBenefit	-12000000	USD
CY2010Q4	sre	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Income Tax Expense Benefit AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentIncomeTaxExpenseBenefit	1000000	USD
CY2011Q4	sre	Accumulated Other Comprehensive Income Loss Unamortized Net Actuarial Gain Loss Income Tax Expense Benefit AccumulatedOtherComprehensiveIncomeLossUnamortizedNetActuarialGainLossIncomeTaxExpenseBenefit	-68000000	USD
CY2010Q4	sre	Accumulated Other Comprehensive Income Loss Unamortized Net Actuarial Gain Loss Income Tax Expense Benefit AccumulatedOtherComprehensiveIncomeLossUnamortizedNetActuarialGainLossIncomeTaxExpenseBenefit	-60000000	USD
CY2011Q4	sre	Accumulated Other Comprehensive Income Loss Unamortized Prior Service Credit Cost Income Tax Expense Benefit AccumulatedOtherComprehensiveIncomeLossUnamortizedPriorServiceCreditCostIncomeTaxExpenseBenefit	1000000	USD
CY2010Q4	sre	Accumulated Other Comprehensive Income Loss Unamortized Prior Service Credit Cost Income Tax Expense Benefit AccumulatedOtherComprehensiveIncomeLossUnamortizedPriorServiceCreditCostIncomeTaxExpenseBenefit	1000000	USD
CY2011Q4	sre	Accumulated Other Comprehensive Income Loss Income Tax Expense Benefit AccumulatedOtherComprehensiveIncomeLossIncomeTaxExpenseBenefit	-92000000	USD
CY2010Q4	sre	Accumulated Other Comprehensive Income Loss Income Tax Expense Benefit AccumulatedOtherComprehensiveIncomeLossIncomeTaxExpenseBenefit	-70000000	USD
CY2011Q4	sre	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Income Tax Expense Benefit AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentIncomeTaxExpenseBenefit	-3000000	USD
CY2010	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	4491000000	USD
CY2009	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	4002000000	USD
CY2011Q4	sre	Amount Of Ownership Interests Held By Others AmountOfOwnershipInterestsHeldByOthers	383000000	USD
CY2010Q4	sre	Amount Of Ownership Interests Held By Others AmountOfOwnershipInterestsHeldByOthers	111000000	USD
CY2011	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	8322000000	USD
CY2010	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	7019000000	USD
CY2009	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	6421000000	USD
CY2011	us-gaap	Regulated Operating Revenue Gas RegulatedOperatingRevenueGas	4489000000	USD
CY2011	sre	Regulated Operating Revenue Electric RegulatedOperatingRevenueElectric	3833000000	USD
CY2010	sre	Regulated Operating Revenue Electric RegulatedOperatingRevenueElectric	2528000000	USD
CY2009	sre	Regulated Operating Revenue Electric RegulatedOperatingRevenueElectric	2419000000	USD
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	11000000	USD
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	4000000	USD
CY2009	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	3000000	USD
CY2010Q4	sre	Transactions With Joint Venture Fixed Price Contracts And Other Derivatives Net Asset Liability TransactionsWithJointVentureFixedPriceContractsAndOtherDerivativesNetAssetLiability	-18000000	USD
CY2010Q4	sre	Transactions With Joint Venture Due To Joint Venture TransactionsWithJointVentureDueToJointVenture	35000000	USD
CY2010Q4	sre	Transactions With Joint Venture Due From Joint Venture TransactionsWithJointVentureDueFromJointVenture	34000000	USD
CY2010Q4	sre	Proceeds From Legal Settlement ProceedsFromLegalSettlement	48000000	USD
CY2008Q4	us-gaap	Acquired Finite Lived Intangible Asset Amount AcquiredFiniteLivedIntangibleAssetAmount	460000000	USD
CY2010	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	10000000	USD
CY2009	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	10000000	USD
CY2011	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	10000000	USD
CY2011	sre	Finite Lived Intangible Assets Future Amortization Expense Per Year FiniteLivedIntangibleAssetsFutureAmortizationExpensePerYear	10000000	USD
CY2009	sre	Write Off Of Long Lived Assets Portion Attributable To Noncontrolling Interest WriteOffOfLongLivedAssetsPortionAttributableToNoncontrollingInterest	33000000	USD
CY2009	sre	Write Off Of Long Lived Assets Net Of Tax WriteOffOfLongLivedAssetsNetOfTax	97000000	USD
CY2009	sre	Write Off Of Long Lived Assets Portion Attributable To Parent Net Of Tax WriteOffOfLongLivedAssetsPortionAttributableToParentNetOfTax	64000000	USD
CY2010Q4	us-gaap	Assets Held For Sale Long Lived AssetsHeldForSaleLongLived	40000000	USD
CY2011Q4	sre	Restricted Net Assets RestrictedNetAssets	4800000000	USD
CY2011Q4	sre	Undistributed Earnings Of Equity Method Investments UndistributedEarningsOfEquityMethodInvestments	78000000	USD
CY2011Q4	sre	Loan To Unconsolidated Affiliate Principal LoanToUnconsolidatedAffiliatePrincipal	18000000	USD
CY2011Q4	sre	Loan To Unconsolidated Affiliate Accrued Interest LoanToUnconsolidatedAffiliateAccruedInterest	6000000	USD
CY2011Q4	sre	Restricted Cash And Cash Equivalents Total RestrictedCashAndCashEquivalentsTotal	46000000	USD
CY2010Q4	sre	Restricted Cash And Cash Equivalents Total RestrictedCashAndCashEquivalentsTotal	158000000	USD
CY2011Q4	sre	Undistributed Earnings Equity Method Investments UndistributedEarningsEquityMethodInvestments	78000000	USD
CY2010Q4	sre	Undistributed Earnings Equity Method Investments UndistributedEarningsEquityMethodInvestments	570000000	USD
CY2011Q4	sre	Equity Method Goodwill Excluding Foreign Currency Translation Adjustments EquityMethodGoodwillExcludingForeignCurrencyTranslationAdjustments	64000000	USD
CY2010Q4	sre	Equity Method Goodwill Excluding Foreign Currency Translation Adjustments EquityMethodGoodwillExcludingForeignCurrencyTranslationAdjustments	317000000	USD
CY2011Q4	sre	Equity Method Goodwill Including Foreign Currency Translation Adjustments EquityMethodGoodwillIncludingForeignCurrencyTranslationAdjustments	64000000	USD
CY2010Q4	sre	Equity Method Goodwill Including Foreign Currency Translation Adjustments EquityMethodGoodwillIncludingForeignCurrencyTranslationAdjustments	333000000	USD
CY2010	sre	Distributable Income Of Joint Venture DistributableIncomeOfJointVenture	53000000	USD
CY2009	sre	Distributable Income Of Joint Venture DistributableIncomeOfJointVenture	300000000	USD
	sre	Investment In Joint Venture First Tranche Partnership Income Amount InvestmentInJointVentureFirstTranchePartnershipIncomeAmount	500000000	USD
CY2011Q4	sre	Equity Method Investment Cumulative Foreign Currency Translation Adjustments EquityMethodInvestmentCumulativeForeignCurrencyTranslationAdjustments	270000000	USD
CY2010Q3	sre	Investment In Joint Venture Other Than Temporary Impairment InvestmentInJointVentureOtherThanTemporaryImpairment	-305000000	USD
CY2010Q3	sre	Investment In Joint Venture Other Than Temporary Impairment After Tax InvestmentInJointVentureOtherThanTemporaryImpairmentAfterTax	-139000000	USD
	sre	Investment In Joint Venture Preferred Return On Capital InvestmentInJointVenturePreferredReturnOnCapital	0.15	pure
	sre	Investment In Joint Venture Partner Preferred Return On Capital InvestmentInJointVenturePartnerPreferredReturnOnCapital	0.15	pure
	sre	Investment In Joint Venture Share Of First Tranche Partnership Income InvestmentInJointVentureShareOfFirstTranchePartnershipIncome	0.7	pure
	sre	Investment In Joint Venture Partner Share Of First Tranche Partnership Income InvestmentInJointVenturePartnerShareOfFirstTranchePartnershipIncome	0.3	pure
	sre	Investment In Joint Venture Share Of Second Tranche Partnership Income InvestmentInJointVentureShareOfSecondTranchePartnershipIncome	0.3	pure
	sre	Investment In Joint Venture Partner Share Of Second Tranche Partnership Income InvestmentInJointVenturePartnerShareOfSecondTranchePartnershipIncome	0.7	pure
CY2011	sre	Distributable Income Of Joint Venture DistributableIncomeOfJointVenture	30000000	USD
CY2011Q3	sre	Investment In Joint Venture Other Than Temporary Impairment InvestmentInJointVentureOtherThanTemporaryImpairment	-16000000	USD
CY2011Q3	sre	Investment In Joint Venture Other Than Temporary Impairment After Tax InvestmentInJointVentureOtherThanTemporaryImpairmentAfterTax	-10000000	USD
CY2011Q4	sre	Future Cash Distributions Percentage To Joint Venture FutureCashDistributionsPercentageToJointVenture	0.51	pure
CY2011Q4	sre	Future Cash Distributions Percentage FutureCashDistributionsPercentage	0.49	pure
CY2010Q4	sre	Distributions Related To The Completed Sale Transactions DistributionsRelatedToTheCompletedSaleTransactions	849000000	USD
CY2010Q4	sre	Distributions From Joint Venture Total DistributionsFromJointVentureTotal	198000000	USD
CY2009Q4	sre	Distributions From Joint Venture Total DistributionsFromJointVentureTotal	407000000	USD
CY2011Q4	sre	Distributions From Joint Venture Total DistributionsFromJointVentureTotal	623000000	USD
CY2011Q4	sre	Distributions Include Sales Proceeds And Our Portion Joint Venture Distributable Income DistributionsIncludeSalesProceedsAndOurPortionJointVentureDistributableIncome	651000000	USD
CY2011Q4	sre	Amounts To Settle Certain Liabilities Owed To Joint Venture AmountsToSettleCertainLiabilitiesOwedToJointVenture	28000000	USD
CY2011Q4	sre	Real Estate Investments Held By Subsidiary RealEstateInvestmentsHeldBySubsidiary	11000000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	320000000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	716000000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1271000000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	316000000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	786000000	USD
CY2011Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	6801000000	USD
CY2011Q4	sre	Long Term Debt Maturities Total Repayments Of Principal LongTermDebtMaturitiesTotalRepaymentsOfPrincipal	10210000000	USD
CY2011Q4	sre	Long Term Debt Callable In Next Twelve Months LongTermDebtCallableInNextTwelveMonths	353000000	USD
CY2011Q4	sre	Callable Long Term Debt CallableLongTermDebt	1088000000	USD
CY2011Q4	sre	Callable Long Term Debt Subject To Make Whole Provisions CallableLongTermDebtSubjectToMakeWholeProvisions	7691000000	USD
CY2011Q4	sre	Long Term Debt Callable After Year Five LongTermDebtCallableAfterYearFive	251000000	USD
CY2011Q4	sre	Long Term Debt Callable In Year Five LongTermDebtCallableInYearFive	8000000	USD
CY2011Q4	sre	Long Term Debt Callable In Year Two LongTermDebtCallableInYearTwo	45000000	USD
CY2011Q4	sre	Long Term Debt Callable In Year Three LongTermDebtCallableInYearThree	326000000	USD
CY2011Q4	sre	Long Term Debt Callable In Year Four LongTermDebtCallableInYearFour	105000000	USD
CY2011Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	3800000000	USD
CY2011Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	2700000000	USD
CY2011Q4	sre	Long Term Debt Unsecured LongTermDebtUnsecured	5100000000	USD
CY2011Q4	sre	Guarantor Obligations Liabilities Of Joint Venture GuarantorObligationsLiabilitiesOfJointVenture	1000000	USD
CY2011Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0093	pure
CY2011	sre	Payments To Acquire Industrial Development Bonds PaymentsToAcquireIndustrialDevelopmentBonds	84000000	USD
CY2009	sre	Payments To Acquire Industrial Development Bonds PaymentsToAcquireIndustrialDevelopmentBonds	75000000	USD
CY2010Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0046	pure
	sre	Esop Debt Principal Repayments ESOPDebtPrincipalRepayments	64000000	USD
CY2010	sre	Esop Debt Interest Expense ESOPDebtInterestExpense	2000000	USD
CY2009	sre	Esop Debt Interest Expense ESOPDebtInterestExpense	3000000	USD
CY2011	sre	Esop Debt Dividends Used For Debt Service ESOPDebtDividendsUsedForDebtService	1000000	USD
CY2010	sre	Esop Debt Dividends Used For Debt Service ESOPDebtDividendsUsedForDebtService	1000000	USD
CY2009	sre	Esop Debt Dividends Used For Debt Service ESOPDebtDividendsUsedForDebtService	2000000	USD
	sre	Shares Held In Employee Stock Ownership Plan Released SharesHeldInEmployeeStockOwnershipPlanReleased	1000000	shares
CY2010	sre	Payments To Acquire Industrial Development Bonds PaymentsToAcquireIndustrialDevelopmentBonds	42000000	USD
CY2011Q4	sre	Esop Debt Repriced ESOPDebtRepriced	8000000	USD
CY2011Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	562000000	USD
CY2011Q4	sre	Maximum Long Term Debt Available Industrial Development Bonds MaximumLongTermDebtAvailableIndustrialDevelopmentBonds	265000000	USD
CY2011Q4	sre	Redemption Of Industrial Development Bonds RedemptionOfIndustrialDevelopmentBonds	180000000	USD
CY2011Q4	sre	Industrial Development Bonds Interest Rate Stated Percentage IndustrialDevelopmentBondsInterestRateStatedPercentage	0.045	pure
CY2011Q4	sre	Gross Unrealized Gains On Available For Sale Securities GrossUnrealizedGainsOnAvailableForSaleSecurities	248000000	USD
CY2011Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	804000000	USD
CY2010Q4	us-gaap	Available For Sale Securities Amortized Cost AvailableForSaleSecuritiesAmortizedCost	514000000	USD
CY2010Q4	sre	Gross Unrealized Gains On Available For Sale Securities GrossUnrealizedGainsOnAvailableForSaleSecurities	261000000	USD
CY2010Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	769000000	USD
CY2011Q4	sre	Gross Unrealized Losses On Available For Sale Securities GrossUnrealizedLossesOnAvailableForSaleSecurities	6000000	USD
CY2010Q4	sre	Gross Unrealized Losses On Available For Sale Securities GrossUnrealizedLossesOnAvailableForSaleSecurities	6000000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	715000000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	75000000	USD
CY2011	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	52000000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	11000000	USD
CY2009	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	33000000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	351000000	USD
CY2010	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	11000000	USD
CY2009	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	224000000	USD
CY2009	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	6000000	USD
CY2011Q4	sre	Asset Retirement Obligation Nuclear Power Plant AssetRetirementObligationNuclearPowerPlant	524000000	USD
CY2010Q3	sre	Utility Share Of Nuclear Decommissioning Costs UtilityShareOfNuclearDecommissioningCosts	768000000	USD
CY2011	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation	0.03	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation	0.06	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation	0.03	pure
CY2010	sre	Effective Income Tax Rate Reconciliation Utility Repair Allowance EffectiveIncomeTaxRateReconciliationUtilityRepairAllowance	-0.02	pure
CY2009	sre	Effective Income Tax Rate Reconciliation Utility Repair Allowance EffectiveIncomeTaxRateReconciliationUtilityRepairAllowance	-0.01	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.03	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.01	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.03	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	-0.01	pure
CY2011	sre	Effective Income Tax Rate Reconciliation Allowance For Equity Funds Used During Construction EffectiveIncomeTaxRateReconciliationAllowanceForEquityFundsUsedDuringConstruction	-0.02	pure
CY2010	sre	Effective Income Tax Rate Reconciliation Allowance For Equity Funds Used During Construction EffectiveIncomeTaxRateReconciliationAllowanceForEquityFundsUsedDuringConstruction	-0.03	pure
CY2009	sre	Effective Income Tax Rate Reconciliation Allowance For Equity Funds Used During Construction EffectiveIncomeTaxRateReconciliationAllowanceForEquityFundsUsedDuringConstruction	-0.01	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.08	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.12	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.05	pure
CY2009	sre	Effective Income Tax Rate Reconciliation Variable Interest Entities EffectiveIncomeTaxRateReconciliationVariableInterestEntities	-0.01	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.02	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0.01	pure
CY2010	sre	Effective Income Tax Rate Reconciliation Impairment Equity Method Investment EffectiveIncomeTaxRateReconciliationImpairmentEquityMethodInvestment	-0.02	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.01	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.02	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.03	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.02	pure
CY2011	sre	Effective Income Tax Rate Reconciliation Utility Repair Allowance EffectiveIncomeTaxRateReconciliationUtilityRepairAllowance	-0.01	pure
CY2011	sre	Effective Income Tax Rate Reconciliation Self Developed Software Expenditures EffectiveIncomeTaxRateReconciliationSelfDevelopedSoftwareExpenditures	-0.03	pure
CY2010	sre	Effective Income Tax Rate Reconciliation Self Developed Software Expenditures EffectiveIncomeTaxRateReconciliationSelfDevelopedSoftwareExpenditures	-0.05	pure
CY2009	sre	Effective Income Tax Rate Reconciliation Self Developed Software Expenditures EffectiveIncomeTaxRateReconciliationSelfDevelopedSoftwareExpenditures	-0.03	pure
CY2011	sre	Effective Income Tax Rate Reconciliation Foreign Exchange And Inflation Effects EffectiveIncomeTaxRateReconciliationForeignExchangeAndInflationEffects	-0.01	pure
CY2010	sre	Effective Income Tax Rate Reconciliation Foreign Exchange And Inflation Effects EffectiveIncomeTaxRateReconciliationForeignExchangeAndInflationEffects	0.02	pure
CY2009	sre	Effective Income Tax Rate Reconciliation Foreign Exchange And Inflation Effects EffectiveIncomeTaxRateReconciliationForeignExchangeAndInflationEffects	0.01	pure
CY2010	sre	Effective Income Tax Rate Reconciliation Variable Interest Entities EffectiveIncomeTaxRateReconciliationVariableInterestEntities	0.01	pure
CY2011	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.01	pure
CY2011	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.23	pure
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.17	pure
CY2009	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.29	pure
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1011000000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	448000000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1007000000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	712000000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	339000000	USD
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	469000000	USD
CY2011	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	76000000	USD
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	69000000	USD
CY2009	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	39000000	USD
CY2011	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-3000000	USD
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-3000000	USD
CY2009	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	40000000	USD
CY2011	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	149000000	USD
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	30000000	USD
CY2009	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	48000000	USD
CY2011	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	222000000	USD
CY2010	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	96000000	USD
CY2009	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	127000000	USD
CY2011	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	176000000	USD
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-18000000	USD
CY2009	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	216000000	USD
CY2011	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	43000000	USD
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	32000000	USD
CY2009	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	24000000	USD
CY2011	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-45000000	USD
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	27000000	USD
CY2009	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	58000000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	174000000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	41000000	USD
CY2009	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	298000000	USD
CY2011	us-gaap	Investment Tax Credit InvestmentTaxCredit	-2000000	USD
CY2010	us-gaap	Investment Tax Credit InvestmentTaxCredit	-4000000	USD
CY2009	us-gaap	Investment Tax Credit InvestmentTaxCredit	-3000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2360000000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1949000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	456000000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets And Liabilities DeferredTaxLiabilitiesRegulatoryAssetsAndLiabilities	535000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	13000000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	23000000	USD
CY2011Q4	sre	Deferred Tax Liabilities Loss On Reacquired Debt DeferredTaxLiabilitiesLossOnReacquiredDebt	12000000	USD
CY2010Q4	sre	Deferred Tax Liabilities Loss On Reacquired Debt DeferredTaxLiabilitiesLossOnReacquiredDebt	15000000	USD
CY2011Q4	sre	Deferred Tax Liabilities Property Taxes DeferredTaxLiabilitiesPropertyTaxes	43000000	USD
CY2010Q4	sre	Deferred Tax Liabilities Property Taxes DeferredTaxLiabilitiesPropertyTaxes	38000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	30000000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	72000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	3066000000	USD
CY2010Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2632000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	22000000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	34000000	USD
CY2011Q4	sre	Deferred Tax Assets Equity Method Losses DeferredTaxAssetsEquityMethodLosses	16000000	USD
CY2010Q4	sre	Deferred Tax Assets Equity Method Losses DeferredTaxAssetsEquityMethodLosses	3000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	811000000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	40000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	140000000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Other DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther	158000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	361000000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	467000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	34000000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	52000000	USD
CY2011Q4	sre	Deferred Tax Assets State Income Taxes DeferredTaxAssetsStateIncomeTaxes	58000000	USD
CY2010Q4	sre	Deferred Tax Assets State Income Taxes DeferredTaxAssetsStateIncomeTaxes	73000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	8000000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	10000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	5000000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	304000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1455000000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1224000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	82000000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	62000000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1373000000	USD
CY2010Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1162000000	USD
CY2011Q4	sre	Deferred Tax Liabilities Net DeferredTaxLiabilitiesNet	1693000000	USD
CY2010Q4	sre	Deferred Tax Liabilities Net DeferredTaxLiabilitiesNet	1470000000	USD
CY2010Q4	sre	Deferred Tax Assets Investment In Noncontrolled Affiliates DeferredTaxAssetsInvestmentInNoncontrolledAffiliates	83000000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Investment In Noncontrolled Affiliates DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates	152000000	USD
CY2011Q4	sre	Deferred Tax Assets Liabilities Current Net DeferredTaxAssetsLiabilitiesCurrentNet	173000000	USD
CY2010Q4	sre	Deferred Tax Assets Liabilities Current Net DeferredTaxAssetsLiabilitiesCurrentNet	-75000000	USD
CY2011Q4	sre	Deferred Tax Assets Liabilities Noncurrent Net DeferredTaxAssetsLiabilitiesNoncurrentNet	1520000000	USD
CY2010Q4	sre	Deferred Tax Assets Liabilities Noncurrent Net DeferredTaxAssetsLiabilitiesNoncurrentNet	1545000000	USD
CY2011Q4	sre	Unrecognized Tax Benefits That Would Decrease Effective Tax Rate UnrecognizedTaxBenefitsThatWouldDecreaseEffectiveTaxRate	-72000000	USD
CY2010Q4	sre	Unrecognized Tax Benefits That Would Decrease Effective Tax Rate UnrecognizedTaxBenefitsThatWouldDecreaseEffectiveTaxRate	-76000000	USD
CY2009Q4	sre	Unrecognized Tax Benefits That Would Decrease Effective Tax Rate UnrecognizedTaxBenefitsThatWouldDecreaseEffectiveTaxRate	-76000000	USD
CY2011Q4	sre	Unrecognized Tax Benefits That Would Increase Effective Tax Rate UnrecognizedTaxBenefitsThatWouldIncreaseEffectiveTaxRate	7000000	USD
CY2010Q4	sre	Unrecognized Tax Benefits That Would Increase Effective Tax Rate UnrecognizedTaxBenefitsThatWouldIncreaseEffectiveTaxRate	5000000	USD
CY2009Q4	sre	Unrecognized Tax Benefits That Would Increase Effective Tax Rate UnrecognizedTaxBenefitsThatWouldIncreaseEffectiveTaxRate	13000000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	97000000	USD
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	94000000	USD
CY2008Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	104000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	7000000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	29000000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	44000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-26000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	-9000000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	72000000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-4000000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5000000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	-9000000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	-18000000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	-3000000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	15000000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	-54000000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	-12000000	USD
CY2010Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	-41000000	USD
CY2009Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	-31000000	USD
CY2011Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	-7000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-3000000	USD
CY2011	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	-1000000	USD
CY2010	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	4000000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	-16000000	USD
CY2009	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	3000000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	3000000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	6000000	USD
CY2011Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	3000000	USD
CY2010Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	4000000	USD
CY2011	sre	Increase Decrease In Valuation Allowance IncreaseDecreaseInValuationAllowance	20000000	USD
CY2011Q4	sre	Undistributed Foreign Earnings UndistributedForeignEarnings	2600000000	USD
CY2011	sre	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss Included In Cost Of Electric Fuel And Purchased Power FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInCostOfElectricFuelAndPurchasedPower	17000000	USD
CY2008Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	27000000	USD
CY2009	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings	-31000000	USD
CY2010Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	22000000	USD
CY2010	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate DefinedBenefitPlanUltimateHealthCareCostTrendRate	0.055	pure
CY2011	sre	Savings Plan Employer Contributions SavingsPlanEmployerContributions	32000000	USD
CY2010	sre	Savings Plan Employer Contributions SavingsPlanEmployerContributions	31000000	USD
CY2009	sre	Savings Plan Employer Contributions SavingsPlanEmployerContributions	31000000	USD
CY2011Q4	sre	Dedicated Assets Supporting Supplemental Benefit Plans DedicatedAssetsSupportingSupplementalBenefitPlans	478000000	USD
CY2010Q4	sre	Dedicated Assets Supporting Supplemental Benefit Plans DedicatedAssetsSupportingSupplementalBenefitPlans	442000000	USD
CY2011Q4	sre	Savings Plan Market Value Of Employer Stock Held By Plan SavingsPlanMarketValueOfEmployerStockHeldByPlan	883000000	USD
CY2010Q4	sre	Savings Plan Market Value Of Employer Stock Held By Plan SavingsPlanMarketValueOfEmployerStockHeldByPlan	847000000	USD
CY2010Q4	us-gaap	Employee Stock Ownership Plan Esop Deferred Shares Fair Value EmployeeStockOwnershipPlanESOPDeferredSharesFairValue	27000000	USD
CY2011Q4	us-gaap	Employee Stock Ownership Plan Esop Deferred Shares Fair Value EmployeeStockOwnershipPlanESOPDeferredSharesFairValue	8000000	USD
CY2010	sre	Defined Benefit Plan Ppaca Excise Tax DefinedBenefitPlanPPACAExciseTax	31000000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	44000000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	34000000	USD
CY2009	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	34000000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	18000000	USD
CY2010	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	13000000	USD
CY2009	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	13000000	USD
CY2011	sre	Employee Service Share Based Compensation Compensation Expense Net Of Tax EmployeeServiceShareBasedCompensationCompensationExpenseNetOfTax	26000000	USD
CY2010	sre	Employee Service Share Based Compensation Compensation Expense Net Of Tax EmployeeServiceShareBasedCompensationCompensationExpenseNetOfTax	21000000	USD
CY2009	sre	Employee Service Share Based Compensation Compensation Expense Net Of Tax EmployeeServiceShareBasedCompensationCompensationExpenseNetOfTax	21000000	USD
CY2011	sre	Employee Service Share Based Compensation Compensation Expense Net Of Tax Per Basic Share EmployeeServiceShareBasedCompensationCompensationExpenseNetOfTaxPerBasicShare	0.11
CY2010	sre	Employee Service Share Based Compensation Compensation Expense Net Of Tax Per Basic Share EmployeeServiceShareBasedCompensationCompensationExpenseNetOfTaxPerBasicShare	0.09
CY2009	sre	Employee Service Share Based Compensation Compensation Expense Net Of Tax Per Basic Share EmployeeServiceShareBasedCompensationCompensationExpenseNetOfTaxPerBasicShare	0.09
CY2011	sre	Employee Service Share Based Compensation Compensation Expense Net Of Tax Per Diluted Share EmployeeServiceShareBasedCompensationCompensationExpenseNetOfTaxPerDilutedShare	0.11
CY2010	sre	Employee Service Share Based Compensation Compensation Expense Net Of Tax Per Diluted Share EmployeeServiceShareBasedCompensationCompensationExpenseNetOfTaxPerDilutedShare	0.08
CY2009	sre	Employee Service Share Based Compensation Compensation Expense Net Of Tax Per Diluted Share EmployeeServiceShareBasedCompensationCompensationExpenseNetOfTaxPerDilutedShare	0.08
CY2010	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	3000000	USD
CY2011Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	204000000	USD
CY2010Q4	us-gaap	Capital Lease Obligations CapitalLeaseObligations	221000000	USD
CY2011Q4	us-gaap	Commercial Paper Noncurrent CommercialPaperNoncurrent	400000000	USD
CY2010Q4	us-gaap	Commercial Paper Noncurrent CommercialPaperNoncurrent	800000000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	47.85
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	4615468	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	47.83
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber	3542346	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	57.75
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm	4.8	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm	4.2	pure
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	40000000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	40000000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	35000000	USD
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5630472	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	44.79
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriod	-958126	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	29.41
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	-41375	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4630971	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice	46.56
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Remaining Contractual Term ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm	4.9	pure
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	2555427	shares
CY2011	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	4000000	USD
CY2009	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	5000000	USD
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	23000000	USD
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	22000000	USD
CY2009	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	45000000	USD
CY2011	us-gaap	Employee Service Share Based Compensation Cash Received From Exercise Of Stock Options EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions	28000000	USD
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	302478	shares
CY2010Q4	sre	Interest Rate Derivatives Notional Amount Minimum InterestRateDerivativesNotionalAmountMinimum	215000000	USD
CY2010Q4	sre	Interest Rate Derivatives Notional Amount Maximum InterestRateDerivativesNotionalAmountMaximum	355000000	USD
CY2010	sre	Interest Rate Derivatives Maturities Minimum InterestRateDerivativesMaturitiesMinimum	2011
CY2010	sre	Interest Rate Derivatives Maturities Maximum InterestRateDerivativesMaturitiesMaximum	2019
CY2011Q4	sre	Interest Rate Derivatives Notional Amount Minimum InterestRateDerivativesNotionalAmountMinimum	15000000	USD
CY2011Q4	sre	Interest Rate Derivatives Notional Amount Maximum InterestRateDerivativesNotionalAmountMaximum	305000000	USD
CY2011	sre	Interest Rate Derivatives Maturities Minimum InterestRateDerivativesMaturitiesMinimum	2013
CY2011	sre	Interest Rate Derivatives Maturities Maximum InterestRateDerivativesMaturitiesMaximum	2019
CY2011	us-gaap	Cash Flow Hedge Gain Loss To Be Reclassified Within Twelve Months CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths	8000000	USD
CY2011Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	24000000	USD
CY2011Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	24000000	USD
CY2011Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	16000000	USD
CY2011Q4	us-gaap	Derivative Fair Value Gross Amount Not Offset Against Collateral Net DerivativeFairValueGrossAmountNotOffsetAgainstCollateralNet	20000000	USD
CY2010Q4	us-gaap	Derivative Fair Value Gross Amount Not Offset Against Collateral Net DerivativeFairValueGrossAmountNotOffsetAgainstCollateralNet	32000000	USD
CY2011Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Equity Securities FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsEquitySecurities	468000000	USD
CY2011Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Us Debt Securities FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsUSDebtSecurities	170000000	USD
CY2011Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Municipal Debt Securities FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsMunicipalDebtSecurities	77000000	USD
CY2011Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Other Debt Securities FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsOtherDebtSecurities	78000000	USD
CY2011Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Total Debt Securities FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsTotalDebtSecurities	325000000	USD
CY2011Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Total FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsTotal	793000000	USD
CY2011Q4	sre	Fair Value Assets Measured On A Recurring Basis Interest Rate Instruments FairValueAssetsMeasuredOnARecurringBasisInterestRateInstruments	66000000	USD
CY2011Q4	sre	Fair Value Assets Measured On A Recurring Basis Commodity Contracts Subject To Rate Recovery FairValueAssetsMeasuredOnARecurringBasisCommodityContractsSubjectToRateRecovery	34000000	USD
CY2011Q4	sre	Fair Value Assets Measured On A Recurring Basis Commodity Contracts Not Subject To Rate Recovery FairValueAssetsMeasuredOnARecurringBasisCommodityContractsNotSubjectToRateRecovery	48000000	USD
CY2011Q4	us-gaap	Fair Value Measured On Recurring Basis Investments FairValueMeasuredOnRecurringBasisInvestments	5000000	USD
CY2011Q4	sre	Fair Value Assets Measured On A Recurring Basis Total Assets At Fair Value FairValueAssetsMeasuredOnARecurringBasisTotalAssetsAtFairValue	946000000	USD
CY2011Q4	sre	Fair Value Liabilities Measured On A Recurring Basis Interest Rate Instruments FairValueLiabilitiesMeasuredOnARecurringBasisInterestRateInstruments	125000000	USD
CY2011Q4	sre	Fair Value Liabilities Measured On A Recurring Basis Commodity Contracts Subject To Rate Recovery FairValueLiabilitiesMeasuredOnARecurringBasisCommodityContractsSubjectToRateRecovery	13000000	USD
CY2011Q4	sre	Fair Value Liabilities Measured On A Recurring Basis Commodity Contracts Not Subject To Rate Recovery FairValueLiabilitiesMeasuredOnARecurringBasisCommodityContractsNotSubjectToRateRecovery	49000000	USD
CY2011Q4	sre	Fair Value Liabilities Measured On A Recurring Basis Total Liabilities At Fair Value FairValueLiabilitiesMeasuredOnARecurringBasisTotalLiabilitiesAtFairValue	187000000	USD
CY2010Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Equity Securities FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsEquitySecurities	460000000	USD
CY2010Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Us Debt Securities FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsUSDebtSecurities	174000000	USD
CY2010Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Municipal Debt Securities FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsMunicipalDebtSecurities	100000000	USD
CY2010Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Other Debt Securities FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsOtherDebtSecurities	25000000	USD
CY2010Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Total Debt Securities FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsTotalDebtSecurities	299000000	USD
CY2010Q4	sre	Fair Value Assets Measured On A Recurring Basis Nuclear Decommissioning Trusts Total FairValueAssetsMeasuredOnARecurringBasisNuclearDecommissioningTrustsTotal	759000000	USD
CY2010Q4	sre	Fair Value Assets Measured On A Recurring Basis Interest Rate Instruments FairValueAssetsMeasuredOnARecurringBasisInterestRateInstruments	34000000	USD
CY2010Q4	sre	Fair Value Assets Measured On A Recurring Basis Commodity Contracts Subject To Rate Recovery FairValueAssetsMeasuredOnARecurringBasisCommodityContractsSubjectToRateRecovery	28000000	USD
CY2010Q4	sre	Fair Value Assets Measured On A Recurring Basis Commodity Contracts Not Subject To Rate Recovery FairValueAssetsMeasuredOnARecurringBasisCommodityContractsNotSubjectToRateRecovery	53000000	USD
CY2010Q4	us-gaap	Fair Value Measured On Recurring Basis Investments FairValueMeasuredOnRecurringBasisInvestments	1000000	USD
CY2010Q4	sre	Fair Value Assets Measured On A Recurring Basis Total Assets At Fair Value FairValueAssetsMeasuredOnARecurringBasisTotalAssetsAtFairValue	875000000	USD
CY2010Q4	sre	Fair Value Liabilities Measured On A Recurring Basis Interest Rate Instruments FairValueLiabilitiesMeasuredOnARecurringBasisInterestRateInstruments	82000000	USD
CY2010Q4	sre	Fair Value Liabilities Measured On A Recurring Basis Commodity Contracts Subject To Rate Recovery FairValueLiabilitiesMeasuredOnARecurringBasisCommodityContractsSubjectToRateRecovery	8000000	USD
CY2010Q4	sre	Fair Value Liabilities Measured On A Recurring Basis Commodity Contracts Not Subject To Rate Recovery FairValueLiabilitiesMeasuredOnARecurringBasisCommodityContractsNotSubjectToRateRecovery	67000000	USD
CY2010Q4	sre	Fair Value Liabilities Measured On A Recurring Basis Total Liabilities At Fair Value FairValueLiabilitiesMeasuredOnARecurringBasisTotalLiabilitiesAtFairValue	157000000	USD
CY2009Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	10000000	USD
CY2010	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings	-16000000	USD
CY2010	sre	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Allocated Transmission Instruments FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAllocatedTransmissionInstruments	8000000	USD
CY2009	sre	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Allocated Transmission Instruments FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAllocatedTransmissionInstruments	15000000	USD
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	958126	shares
CY2010	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	912725	shares
CY2009	sre	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	1000000	USD
CY2010Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	2000000	USD
CY2010	sre	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss Included In Cost Of Electric Fuel And Purchased Power FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInCostOfElectricFuelAndPurchasedPower	-9000000	USD
CY2009	sre	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss Included In Cost Of Electric Fuel And Purchased Power FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLossIncludedInCostOfElectricFuelAndPurchasedPower	-16000000	USD
CY2011	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings	32000000	USD
CY2011	sre	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Allocated Transmission Instruments FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAllocatedTransmissionInstruments	7000000	USD
CY2011	sre	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSettlements	18000000	USD
CY2011Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	23000000	USD
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1803000	shares
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3206000	shares
CY2009	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4045000	shares
CY2011	sre	Shareholder Ranking ShareholderRanking	<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 20px"><td style="width: 33px; text-align:left;border-color:#000000;min-width:33px;"> </td><td style="width: 255px; text-align:center;border-color:#000000;min-width:255px;"> </td><td style="width: 178px; text-align:center;border-color:#000000;min-width:178px;"> </td></tr><tr style="height: 55px"><td colspan="2" style="width: 288px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:288px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Four-Year Cumulative Total Shareholder Return Ranking versus S&P 500 Utilities Index(1)</font></td><td style="width: 178px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:178px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Number of Sempra Energy Common Shares Received for Each Restricted Stock Unit(2)</font></td></tr><tr style="height: 20px"><td colspan="2" style="width: 288px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:288px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">75th Percentile or Above</font></td><td style="width: 178px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:178px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">1.5</font></td></tr><tr style="height: 20px"><td colspan="2" style="width: 288px; text-align:left;border-color:#000000;min-width:288px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">50th Percentile </font></td><td style="width: 178px; text-align:center;border-color:#000000;min-width:178px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">1</font></td></tr><tr style="height: 21px"><td colspan="2" style="width: 288px; border-bottom-style:solid;border-bottom-width:3px;text-align:left;border-color:#000000;min-width:288px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: left;">35th Percentile or Below</font></td><td style="width: 178px; border-bottom-style:solid;border-bottom-width:3px;text-align:center;border-color:#000000;min-width:178px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 9pt;COLOR: #000000;TEXT-ALIGN: center;">―</font></td></tr><tr style="height: 24px"><td style="width: 33px; border-top-style:solid;border-top-width:3px;text-align:right;border-color:#A5A5A5;min-width:33px;"><font style="FONT-STYLE: italic;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> (1)</font></td><td colspan="2" style="width: 433px; border-top-style:solid;border-top-width:3px;text-align:left;border-color:#A5A5A5;min-width:433px;"><font style="FONT-STYLE: italic;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">If Sempra Energy ranks at or above the 50th percentile compared to the S&P 500 Index, participants will receive a minimum of 1.0 share for each restricted stock unit.</font></td></tr><tr style="height: 61px"><td style="width: 33px; text-align:right;border-color:#000000;min-width:33px;"><font style="FONT-STYLE: italic;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;"> (2)</font></td><td colspan="2" style="width: 433px; text-align:left;border-color:#000000;min-width:433px;"><font style="FONT-STYLE: italic;FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Participants may also receive additional shares for dividend equivalents on shares subject to restricted stock units, which are reinvested to purchase additional shares that become subject to the same vesting conditions as the restricted stock units to which the dividends relate.</font></td></tr></table></div>
CY2008Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	243324281	shares
CY2010	sre	Stock Issued During Period Shares Savings Plan Issuance StockIssuedDuringPeriodSharesSavingsPlanIssuance	560600	shares
CY2011	sre	Shares Held In Employee Stock Ownership Plan Released SharesHeldInEmployeeStockOwnershipPlanReleased	350815	shares
CY2010	sre	Shares Held In Employee Stock Ownership Plan Released SharesHeldInEmployeeStockOwnershipPlanReleased	363733	shares
CY2009	sre	Shares Held In Employee Stock Ownership Plan Released SharesHeldInEmployeeStockOwnershipPlanReleased	309023	shares
CY2010Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	240447416	shares
CY2009Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	246507865	shares
CY2009	sre	Stock Issued During Period Shares Savings Plan Issuance StockIssuedDuringPeriodSharesSavingsPlanIssuance	1021023	shares
CY2011	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	11876	shares
CY2011	sre	Stock Issued During Period Shares Restricted Stock Units Vesting StockIssuedDuringPeriodSharesRestrictedStockUnitsVesting	2625	shares
CY2009	us-gaap	Stock Issued During Period Shares Restricted Stock Award Gross StockIssuedDuringPeriodSharesRestrictedStockAwardGross	37233	shares
CY2010	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	217772	shares
CY2009	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	381167	shares
CY2011	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	1836177	shares
CY2010	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	8108579	shares
CY2009	us-gaap	Stock Repurchased And Retired During Period Shares StockRepurchasedAndRetiredDuringPeriodShares	396046	shares
CY2010	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	6700	shares
CY2009	us-gaap	Stock Issued During Period Shares Restricted Stock Award Forfeited StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited	4000	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	239934681	shares
CY2011Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	153625	shares
CY2010Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	504440	shares
CY2009Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	868173	shares
CY2011Q4	sre	Authorized Share Repurchase Program Maximum Repurchase Amount AuthorizedShareRepurchaseProgramMaximumRepurchaseAmount	2000000000	USD
CY2011Q4	sre	Authorized Share Repurchase Program Maximum Repurchase Shares AuthorizedShareRepurchaseProgramMaximumRepurchaseShares	40000000	shares
CY2011	sre	Utility Incentive Awards Energy Efficiency And Demand Side Management UtilityIncentiveAwardsEnergyEfficiencyAndDemandSideManagement	16000000	USD
CY2011	sre	Utility Incentive Awards Unbundled Natural Gas Storage And Hub Services UtilityIncentiveAwardsUnbundledNaturalGasStorageAndHubServices	4000000	USD
CY2011	sre	Utility Incentive Awards Natural Gas Procurement UtilityIncentiveAwardsNaturalGasProcurement	6000000	USD
CY2009	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	1835184	shares
CY2011	sre	Utility Incentive Awards Operational Incentives UtilityIncentiveAwardsOperationalIncentives	3000000	USD
CY2010	sre	Utility Incentive Awards Energy Efficiency And Demand Side Management UtilityIncentiveAwardsEnergyEfficiencyAndDemandSideManagement	15000000	USD
CY2010	sre	Utility Incentive Awards Unbundled Natural Gas Storage And Hub Services UtilityIncentiveAwardsUnbundledNaturalGasStorageAndHubServices	15000000	USD
CY2010	sre	Utility Incentive Awards Natural Gas Procurement UtilityIncentiveAwardsNaturalGasProcurement	12000000	USD
CY2010	sre	Utility Incentive Awards Operational Incentives UtilityIncentiveAwardsOperationalIncentives	1000000	USD
CY2010	sre	Utility Incentive Awards UtilityIncentiveAwards	43000000	USD
CY2009	sre	Utility Incentive Awards Energy Efficiency And Demand Side Management UtilityIncentiveAwardsEnergyEfficiencyAndDemandSideManagement	2000000	USD
CY2009	sre	Utility Incentive Awards Unbundled Natural Gas Storage And Hub Services UtilityIncentiveAwardsUnbundledNaturalGasStorageAndHubServices	19000000	USD
CY2009	sre	Utility Incentive Awards Natural Gas Procurement UtilityIncentiveAwardsNaturalGasProcurement	7000000	USD
CY2009	sre	Utility Incentive Awards Operational Incentives UtilityIncentiveAwardsOperationalIncentives	1000000	USD
CY2009	sre	Utility Incentive Awards UtilityIncentiveAwards	29000000	USD
CY2011	sre	Utility Incentive Awards UtilityIncentiveAwards	29000000	USD
CY2011Q4	sre	Renewable Portfolio Standards Penalty Per Kilowatt Hour Of Renewable Energy Underdelivery RenewablePortfolioStandardsPenaltyPerKilowattHourOfRenewableEnergyUnderdelivery	0.05	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	60000000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	538000000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	876000000	USD
CY2011	sre	Long Term Purchase Commitment Payments In Period LongTermPurchaseCommitmentPaymentsInPeriod	1991000000	USD
CY2010	sre	Long Term Purchase Commitment Payments In Period LongTermPurchaseCommitmentPaymentsInPeriod	2097000000	USD
CY2009	sre	Long Term Purchase Commitment Payments In Period LongTermPurchaseCommitmentPaymentsInPeriod	1754000000	USD
CY2011	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	77000000	USD
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	85000000	USD
CY2009	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	101000000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	73000000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	72000000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	68000000	USD
CY2011Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	65000000	USD
CY2011	us-gaap	Segment Reporting Information Income Tax Expense Benefit SegmentReportingInformationIncomeTaxExpenseBenefit	394000000	USD
CY2010	us-gaap	Segment Reporting Information Interest Expense SegmentReportingInformationInterestExpense	436000000	USD
CY2010	us-gaap	Segment Reporting Information Interest Income SegmentReportingInformationInterestIncome	16000000	USD
CY2010	us-gaap	Segment Reporting Information Depreciation Depletion And Amortization Expense SegmentReportingInformationDepreciationDepletionAndAmortizationExpense	866000000	USD
CY2011	us-gaap	Segment Reporting Information Interest Expense SegmentReportingInformationInterestExpense	465000000	USD
CY2011	us-gaap	Segment Reporting Information Interest Income SegmentReportingInformationInterestIncome	26000000	USD
CY2011	us-gaap	Segment Reporting Information Depreciation Depletion And Amortization Expense SegmentReportingInformationDepreciationDepletionAndAmortizationExpense	976000000	USD
CY2011Q4	us-gaap	Environmental Cost Recognized Capitalized In Period EnvironmentalCostRecognizedCapitalizedInPeriod	21000000	USD
CY2010Q4	us-gaap	Environmental Cost Recognized Capitalized In Period EnvironmentalCostRecognizedCapitalizedInPeriod	21000000	USD
CY2009Q4	us-gaap	Environmental Cost Recognized Capitalized In Period EnvironmentalCostRecognizedCapitalizedInPeriod	43000000	USD
CY2011Q4	us-gaap	Site Contingency Accrual Undiscounted Amount SiteContingencyAccrualUndiscountedAmount	29000000	USD
CY2011Q4	us-gaap	Loss Contingency Accrual At Carrying Value LossContingencyAccrualAtCarryingValue	625000000	USD
CY2011Q4	sre	Operating Leases Annual Rent Escalation Range Minimum OperatingLeasesAnnualRentEscalationRangeMinimum	0.02	pure
CY2011Q4	sre	Operating Leases Annual Rent Escalation Range Maximum OperatingLeasesAnnualRentEscalationRangeMaximum	0.06	pure
CY2011	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	10036000000	USD
CY2010	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	9003000000	USD
CY2009	us-gaap	Segment Reporting Information Revenue SegmentReportingInformationRevenue	8106000000	USD
CY2010	us-gaap	Segment Reporting Information Expenditures For Additions To Long Lived Assets SegmentReportingInformationExpendituresForAdditionsToLongLivedAssets	2062000000	USD
CY2009	us-gaap	Segment Reporting Information Expenditures For Additions To Long Lived Assets SegmentReportingInformationExpendituresForAdditionsToLongLivedAssets	1912000000	USD
CY2011Q4	us-gaap	Entity Wide Disclosure On Geographic Areas Long Lived Assets In Individual Foreign Countries Amount EntityWideDisclosureOnGeographicAreasLongLivedAssetsInIndividualForeignCountriesAmount	25136000000	USD
CY2010Q4	us-gaap	Entity Wide Disclosure On Geographic Areas Long Lived Assets In Individual Foreign Countries Amount EntityWideDisclosureOnGeographicAreasLongLivedAssetsInIndividualForeignCountriesAmount	22765000000	USD
CY2009Q4	us-gaap	Entity Wide Disclosure On Geographic Areas Long Lived Assets In Individual Foreign Countries Amount EntityWideDisclosureOnGeographicAreasLongLivedAssetsInIndividualForeignCountriesAmount	22593000000	USD
CY2010	us-gaap	Segment Reporting Information Income Tax Expense Benefit SegmentReportingInformationIncomeTaxExpenseBenefit	133000000	USD
CY2009	us-gaap	Segment Reporting Information Interest Expense SegmentReportingInformationInterestExpense	367000000	USD
CY2009	us-gaap	Segment Reporting Information Interest Income SegmentReportingInformationInterestIncome	21000000	USD
CY2009	us-gaap	Segment Reporting Information Depreciation Depletion And Amortization Expense SegmentReportingInformationDepreciationDepletionAndAmortizationExpense	775000000	USD
CY2009	us-gaap	Segment Reporting Information Income Tax Expense Benefit SegmentReportingInformationIncomeTaxExpenseBenefit	422000000	USD
CY2011	sre	Segment Reporting Information Percentage Of Revenues SegmentReportingInformationPercentageOfRevenues	1.00	pure
CY2010	sre	Segment Reporting Information Percentage Of Revenues SegmentReportingInformationPercentageOfRevenues	1.00	pure
CY2009	sre	Segment Reporting Information Percentage Of Revenues SegmentReportingInformationPercentageOfRevenues	1.00	pure
CY2011	sre	Segment Reporting Information Percentage Of Depreciation And Amortization SegmentReportingInformationPercentageOfDepreciationAndAmortization	1.00	pure
CY2010	sre	Segment Reporting Information Percentage Of Depreciation And Amortization SegmentReportingInformationPercentageOfDepreciationAndAmortization	1.00	pure
CY2009	sre	Segment Reporting Information Percentage Of Depreciation And Amortization SegmentReportingInformationPercentageOfDepreciationAndAmortization	1.00	pure
CY2011	us-gaap	Segment Reporting Information Profit Loss SegmentReportingInformationProfitLoss	1331000000	USD
CY2010	us-gaap	Segment Reporting Information Profit Loss SegmentReportingInformationProfitLoss	709000000	USD
CY2009	us-gaap	Segment Reporting Information Profit Loss SegmentReportingInformationProfitLoss	1119000000	USD
CY2011Q4	us-gaap	Segment Reporting Information Assets SegmentReportingInformationAssets	33249000000	USD
CY2010Q4	us-gaap	Segment Reporting Information Assets SegmentReportingInformationAssets	30231000000	USD
CY2009Q4	us-gaap	Segment Reporting Information Assets SegmentReportingInformationAssets	28501000000	USD
CY2011	us-gaap	Segment Reporting Information Expenditures For Additions To Long Lived Assets SegmentReportingInformationExpendituresForAdditionsToLongLivedAssets	2844000000	USD
CY2011	us-gaap	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Individual Foreign Countries Amount EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToIndividualForeignCountriesAmount	10036000000	USD
CY2010	us-gaap	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Individual Foreign Countries Amount EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToIndividualForeignCountriesAmount	9003000000	USD
CY2009	us-gaap	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Individual Foreign Countries Amount EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToIndividualForeignCountriesAmount	8106000000	USD
CY2011	sre	Segment Reporting Information Percentage Of Earnings Losses SegmentReportingInformationPercentageOfEarningsLosses	1.00	pure
CY2010	sre	Segment Reporting Information Percentage Of Earnings Losses SegmentReportingInformationPercentageOfEarningsLosses	1.00	pure
CY2009	sre	Segment Reporting Information Percentage Of Earnings Losses SegmentReportingInformationPercentageOfEarningsLosses	1.00	pure
CY2011Q4	sre	Segment Reporting Information Percentage Of Assets SegmentReportingInformationPercentageOfAssets	1.00	pure
CY2010Q4	sre	Segment Reporting Information Percentage Of Assets SegmentReportingInformationPercentageOfAssets	1.00	pure
CY2009Q4	sre	Segment Reporting Information Percentage Of Assets SegmentReportingInformationPercentageOfAssets	1.00	pure
CY2011	sre	Segment Reporting Information Percentage Of Expenditures For Property Plant And Equipment SegmentReportingInformationPercentageOfExpendituresForPropertyPlantAndEquipment	1.00	pure
CY2010	sre	Segment Reporting Information Percentage Of Expenditures For Property Plant And Equipment SegmentReportingInformationPercentageOfExpendituresForPropertyPlantAndEquipment	1.00	pure
CY2009	sre	Segment Reporting Information Percentage Of Expenditures For Property Plant And Equipment SegmentReportingInformationPercentageOfExpendituresForPropertyPlantAndEquipment	1.00	pure
CY2011Q4	sre	Entity Wide Disclosure On Geographic Areas Long Lived Assets In Individual Foreign Countries Percentage EntityWideDisclosureOnGeographicAreasLongLivedAssetsInIndividualForeignCountriesPercentage	1.00	pure
CY2010Q4	sre	Entity Wide Disclosure On Geographic Areas Long Lived Assets In Individual Foreign Countries Percentage EntityWideDisclosureOnGeographicAreasLongLivedAssetsInIndividualForeignCountriesPercentage	1.00	pure
CY2009Q4	sre	Entity Wide Disclosure On Geographic Areas Long Lived Assets In Individual Foreign Countries Percentage EntityWideDisclosureOnGeographicAreasLongLivedAssetsInIndividualForeignCountriesPercentage	1.00	pure
CY2011	sre	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Individual Foreign Countries Percentage EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToIndividualForeignCountriesPercentage	1.00	pure
CY2010	sre	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Individual Foreign Countries Percentage EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToIndividualForeignCountriesPercentage	1.00	pure
CY2009	sre	Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Individual Foreign Countries Percentage EntityWideDisclosureOnGeographicAreasRevenueFromExternalCustomersAttributedToIndividualForeignCountriesPercentage	1.00	pure
CY2010	sre	Entity Wide Revenue Major Customer Percentage EntityWideRevenueMajorCustomerPercentage	0.08	pure
CY2009	sre	Entity Wide Revenue Major Customer Percentage EntityWideRevenueMajorCustomerPercentage	0.09	pure
CY2011	sre	Entity Wide Revenue Major Customer Percentage EntityWideRevenueMajorCustomerPercentage	0.06	pure
CY2011Q1	sre	Quarterly Financial Data Revenues QuarterlyFinancialDataRevenues	2434000000	USD
CY2011Q2	sre	Quarterly Financial Data Revenues QuarterlyFinancialDataRevenues	2422000000	USD
CY2011Q3	sre	Quarterly Financial Data Revenues QuarterlyFinancialDataRevenues	2576000000	USD
CY2011Q4	sre	Quarterly Financial Data Revenues QuarterlyFinancialDataRevenues	2604000000	USD
CY2011Q1	sre	Quarterly Financial Data Expenses And Other Income QuarterlyFinancialDataExpensesAndOtherIncome	2091000000	USD
CY2011Q2	sre	Quarterly Financial Data Expenses And Other Income QuarterlyFinancialDataExpensesAndOtherIncome	1836000000	USD
CY2011Q3	sre	Quarterly Financial Data Expenses And Other Income QuarterlyFinancialDataExpensesAndOtherIncome	2188000000	USD
CY2011Q4	sre	Quarterly Financial Data Expenses And Other Income QuarterlyFinancialDataExpensesAndOtherIncome	2198000000	USD
CY2011Q1	sre	Quarterly Financial Data Net Income QuarterlyFinancialDataNetIncome	260000000	USD
CY2011Q2	sre	Quarterly Financial Data Net Income QuarterlyFinancialDataNetIncome	494000000	USD
CY2011Q3	sre	Quarterly Financial Data Net Income QuarterlyFinancialDataNetIncome	319000000	USD
CY2011Q4	sre	Quarterly Financial Data Net Income QuarterlyFinancialDataNetIncome	308000000	USD
CY2011Q1	sre	Quarterly Financial Data Earnings QuarterlyFinancialDataEarnings	254000000	USD
CY2011Q2	sre	Quarterly Financial Data Earnings QuarterlyFinancialDataEarnings	503000000	USD
CY2011Q3	sre	Quarterly Financial Data Earnings QuarterlyFinancialDataEarnings	289000000	USD
CY2011Q4	sre	Quarterly Financial Data Earnings QuarterlyFinancialDataEarnings	285000000	USD
CY2011Q1	sre	Quarterly Financial Data Net Income Per Share Basic QuarterlyFinancialDataNetIncomePerShareBasic	1.08
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CY2011Q3	sre	Quarterly Financial Data Net Income Per Share Basic QuarterlyFinancialDataNetIncomePerShareBasic	1.33
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CY2011Q1	sre	Quarterly Financial Data Earnings Per Share Basic QuarterlyFinancialDataEarningsPerShareBasic	1.06
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CY2011Q1	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Basic QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingBasic	240100000	shares
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CY2011Q3	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Basic QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingBasic	239500000	shares
CY2011Q4	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Basic QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingBasic	239800000	shares
CY2011Q1	sre	Quarterly Financial Data Net Income Per Share Diluted QuarterlyFinancialDataNetIncomePerShareDiluted	1.08	USD
CY2011Q2	sre	Quarterly Financial Data Net Income Per Share Diluted QuarterlyFinancialDataNetIncomePerShareDiluted	2.05	USD
CY2011Q3	sre	Quarterly Financial Data Net Income Per Share Diluted QuarterlyFinancialDataNetIncomePerShareDiluted	1.32	USD
CY2011Q4	sre	Quarterly Financial Data Net Income Per Share Diluted QuarterlyFinancialDataNetIncomePerShareDiluted	1.27	USD
CY2011Q1	sre	Quarterly Financial Data Earnings Per Share Diluted QuarterlyFinancialDataEarningsPerShareDiluted	1.05	USD
CY2011Q2	sre	Quarterly Financial Data Earnings Per Share Diluted QuarterlyFinancialDataEarningsPerShareDiluted	2.09	USD
CY2011Q3	sre	Quarterly Financial Data Earnings Per Share Diluted QuarterlyFinancialDataEarningsPerShareDiluted	1.20	USD
CY2011Q4	sre	Quarterly Financial Data Earnings Per Share Diluted QuarterlyFinancialDataEarningsPerShareDiluted	1.18	USD
CY2011Q1	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Diluted QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingDiluted	241900000	shares
CY2011Q2	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Diluted QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingDiluted	240800000	shares
CY2011Q3	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Diluted QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingDiluted	241900000	shares
CY2011Q4	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Diluted QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingDiluted	241800000	shares
CY2010Q1	sre	Quarterly Financial Data Revenues QuarterlyFinancialDataRevenues	2534000000	USD
CY2010Q2	sre	Quarterly Financial Data Revenues QuarterlyFinancialDataRevenues	2008000000	USD
CY2010Q3	sre	Quarterly Financial Data Revenues QuarterlyFinancialDataRevenues	2116000000	USD
CY2010Q4	sre	Quarterly Financial Data Revenues QuarterlyFinancialDataRevenues	2345000000	USD
CY2010Q1	sre	Quarterly Financial Data Expenses And Other Income QuarterlyFinancialDataExpensesAndOtherIncome	2395000000	USD
CY2010Q2	sre	Quarterly Financial Data Expenses And Other Income QuarterlyFinancialDataExpensesAndOtherIncome	1771000000	USD
CY2010Q3	sre	Quarterly Financial Data Expenses And Other Income QuarterlyFinancialDataExpensesAndOtherIncome	2017000000	USD
CY2010Q4	sre	Quarterly Financial Data Expenses And Other Income QuarterlyFinancialDataExpensesAndOtherIncome	2033000000	USD
CY2010Q1	sre	Quarterly Financial Data Net Income QuarterlyFinancialDataNetIncome	103000000	USD
CY2010Q2	sre	Quarterly Financial Data Net Income QuarterlyFinancialDataNetIncome	187000000	USD
CY2010Q3	sre	Quarterly Financial Data Net Income QuarterlyFinancialDataNetIncome	119000000	USD
CY2010Q4	sre	Quarterly Financial Data Net Income QuarterlyFinancialDataNetIncome	294000000	USD
CY2010Q1	sre	Quarterly Financial Data Earnings QuarterlyFinancialDataEarnings	109000000	USD
CY2010Q2	sre	Quarterly Financial Data Earnings QuarterlyFinancialDataEarnings	204000000	USD
CY2010Q3	sre	Quarterly Financial Data Earnings QuarterlyFinancialDataEarnings	123000000	USD
CY2010Q4	sre	Quarterly Financial Data Earnings QuarterlyFinancialDataEarnings	273000000	USD
CY2010Q1	sre	Quarterly Financial Data Net Income Per Share Basic QuarterlyFinancialDataNetIncomePerShareBasic	0.42
CY2010Q2	sre	Quarterly Financial Data Net Income Per Share Basic QuarterlyFinancialDataNetIncomePerShareBasic	0.75
CY2010Q3	sre	Quarterly Financial Data Net Income Per Share Basic QuarterlyFinancialDataNetIncomePerShareBasic	0.49
CY2010Q4	sre	Quarterly Financial Data Net Income Per Share Basic QuarterlyFinancialDataNetIncomePerShareBasic	1.23
CY2010Q1	sre	Quarterly Financial Data Earnings Per Share Basic QuarterlyFinancialDataEarningsPerShareBasic	0.44
CY2010Q2	sre	Quarterly Financial Data Earnings Per Share Basic QuarterlyFinancialDataEarningsPerShareBasic	0.82
CY2010Q3	sre	Quarterly Financial Data Earnings Per Share Basic QuarterlyFinancialDataEarningsPerShareBasic	0.50
CY2010Q4	sre	Quarterly Financial Data Earnings Per Share Basic QuarterlyFinancialDataEarningsPerShareBasic	1.14
CY2010Q1	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Basic QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingBasic	246100000	shares
CY2010Q2	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Basic QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingBasic	246800000	shares
CY2010Q3	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Basic QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingBasic	246700000	shares
CY2010Q4	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Basic QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingBasic	239500000	shares
CY2010Q1	sre	Quarterly Financial Data Net Income Per Share Diluted QuarterlyFinancialDataNetIncomePerShareDiluted	0.41	USD
CY2010Q2	sre	Quarterly Financial Data Net Income Per Share Diluted QuarterlyFinancialDataNetIncomePerShareDiluted	0.74	USD
CY2010Q3	sre	Quarterly Financial Data Net Income Per Share Diluted QuarterlyFinancialDataNetIncomePerShareDiluted	0.48	USD
CY2010Q4	sre	Quarterly Financial Data Net Income Per Share Diluted QuarterlyFinancialDataNetIncomePerShareDiluted	1.21	USD
CY2010Q1	sre	Quarterly Financial Data Earnings Per Share Diluted QuarterlyFinancialDataEarningsPerShareDiluted	0.44	USD
CY2010Q2	sre	Quarterly Financial Data Earnings Per Share Diluted QuarterlyFinancialDataEarningsPerShareDiluted	0.81	USD
CY2010Q3	sre	Quarterly Financial Data Earnings Per Share Diluted QuarterlyFinancialDataEarningsPerShareDiluted	0.50	USD
CY2010Q4	sre	Quarterly Financial Data Earnings Per Share Diluted QuarterlyFinancialDataEarningsPerShareDiluted	1.12	USD
CY2010Q1	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Diluted QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingDiluted	250400000	shares
CY2010Q2	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Diluted QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingDiluted	249700000	shares
CY2010Q3	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Diluted QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingDiluted	249800000	shares
CY2010Q4	sre	Quarterly Financial Data Weighted Average Number Of Shares Outstanding Diluted QuarterlyFinancialDataWeightedAverageNumberOfSharesOutstandingDiluted	242500000	shares
CY2010Q1	sre	Quarterly Financial Data Litigation Expense QuarterlyFinancialDataLitigationExpense	159000000	USD
CY2010Q1	sre	Quarterly Financial Data Litigation Expense Net Of Income Tax Effect QuarterlyFinancialDataLitigationExpenseNetOfIncomeTaxEffect	96000000	USD
CY2010Q1	sre	Quarterly Financial Data Write Down Of Deferred Tax Assets Related To Other Postretirement Benefits QuarterlyFinancialDataWriteDownOfDeferredTaxAssetsRelatedToOtherPostretirementBenefits	16000000	USD
CY2010Q3	sre	Quarterly Financial Data Investment In Joint Venture Other Than Temporary Impairment QuarterlyFinancialDataInvestmentInJointVentureOtherThanTemporaryImpairment	305000000	USD
CY2010Q3	sre	Quarterly Financial Data Investment In Joint Venture Other Than Temporary Impairment After Tax QuarterlyFinancialDataInvestmentInJointVentureOtherThanTemporaryImpairmentAfterTax	139000000	USD
CY2010Q3	sre	Quarterly Financial Data Equity Method Investment Other Than Temporary Impairment Net Of Income Tax Effect QuarterlyFinancialDataEquityMethodInvestmentOtherThanTemporaryImpairmentNetOfIncomeTaxEffect	24000000	USD
CY2011Q2	sre	Quarterly Financial Data Remeasurement Gain On Investments In South America QuarterlyFinancialDataRemeasurementGainOnInvestmentsInSouthAmerica	277000000	USD
CY2011Q2	sre	Quarterly Financial Data Increase In Revenue From Consolidation Of South American Utilities QuarterlyFinancialDataIncreaseInRevenueFromConsolidationOfSouthAmericanUtilities	324000000	USD
CY2011Q3	sre	Quarterly Financial Data Increase In Revenue From Consolidation Of South American Utilities QuarterlyFinancialDataIncreaseInRevenueFromConsolidationOfSouthAmericanUtilities	335000000	USD
CY2011Q4	sre	Quarterly Financial Data Increase In Revenue From Consolidation Of South American Utilities QuarterlyFinancialDataIncreaseInRevenueFromConsolidationOfSouthAmericanUtilities	350000000	USD
CY2011Q3	sre	Quarterly Financial Data Higher Earnings From Acquisition Of Additional Interests In South America QuarterlyFinancialDataHigherEarningsFromAcquisitionOfAdditionalInterestsInSouthAmerica	11000000	USD
CY2011Q4	sre	Quarterly Financial Data Higher Earnings From Acquisition Of Additional Interests In South America QuarterlyFinancialDataHigherEarningsFromAcquisitionOfAdditionalInterestsInSouthAmerica	24000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Interest Income ScheduleICondensedFinancialInformationOfParentInterestIncome	109000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Interest Income ScheduleICondensedFinancialInformationOfParentInterestIncome	146000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Interest Income ScheduleICondensedFinancialInformationOfParentInterestIncome	140000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Interest Expense ScheduleICondensedFinancialInformationOfParentInterestExpense	242000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Interest Expense ScheduleICondensedFinancialInformationOfParentInterestExpense	265000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Interest Expense ScheduleICondensedFinancialInformationOfParentInterestExpense	244000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Operation And Maintenance ScheduleICondensedFinancialInformationOfParentOperationAndMaintenance	64000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Operation And Maintenance ScheduleICondensedFinancialInformationOfParentOperationAndMaintenance	59000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Operation And Maintenance ScheduleICondensedFinancialInformationOfParentOperationAndMaintenance	81000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Other Income Net ScheduleICondensedFinancialInformationOfParentOtherIncomeNet	42000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Other Income Net ScheduleICondensedFinancialInformationOfParentOtherIncomeNet	65000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Other Income Net ScheduleICondensedFinancialInformationOfParentOtherIncomeNet	50000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Income Tax Benefits ScheduleICondensedFinancialInformationOfParentIncomeTaxBenefits	82000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Income Tax Benefits ScheduleICondensedFinancialInformationOfParentIncomeTaxBenefits	79000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Income Tax Benefits ScheduleICondensedFinancialInformationOfParentIncomeTaxBenefits	89000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Loss Before Equity In Earnings Of Subsidiaries ScheduleICondensedFinancialInformationOfParentLossBeforeEquityInEarningsOfSubsidiaries	-73000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Loss Before Equity In Earnings Of Subsidiaries ScheduleICondensedFinancialInformationOfParentLossBeforeEquityInEarningsOfSubsidiaries	-34000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Loss Before Equity In Earnings Of Subsidiaries ScheduleICondensedFinancialInformationOfParentLossBeforeEquityInEarningsOfSubsidiaries	-46000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Equity In Earnings Of Subsidiaries Net Of Income Taxes ScheduleICondensedFinancialInformationOfParentEquityInEarningsOfSubsidiariesNetOfIncomeTaxes	1404000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Equity In Earnings Of Subsidiaries Net Of Income Taxes ScheduleICondensedFinancialInformationOfParentEquityInEarningsOfSubsidiariesNetOfIncomeTaxes	743000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Equity In Earnings Of Subsidiaries Net Of Income Taxes ScheduleICondensedFinancialInformationOfParentEquityInEarningsOfSubsidiariesNetOfIncomeTaxes	1165000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Net Income Earnings ScheduleICondensedFinancialInformationOfParentNetIncomeEarnings	1331000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Net Income Earnings ScheduleICondensedFinancialInformationOfParentNetIncomeEarnings	709000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Net Income Earnings ScheduleICondensedFinancialInformationOfParentNetIncomeEarnings	1119000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Basic Earnings Per Common Share ScheduleICondensedFinancialInformationOfParentBasicEarningsPerCommonShare	5.55
CY2010	sre	Schedule I Condensed Financial Information Of Parent Basic Earnings Per Common Share ScheduleICondensedFinancialInformationOfParentBasicEarningsPerCommonShare	2.90
CY2009	sre	Schedule I Condensed Financial Information Of Parent Basic Earnings Per Common Share ScheduleICondensedFinancialInformationOfParentBasicEarningsPerCommonShare	4.60
CY2011	sre	Schedule I Condensed Financial Information Of Parent Weighted Average Number Of Shares Outstanding Basic ScheduleICondensedFinancialInformationOfParentWeightedAverageNumberOfSharesOutstandingBasic	239720000	shares
CY2010	sre	Schedule I Condensed Financial Information Of Parent Weighted Average Number Of Shares Outstanding Basic ScheduleICondensedFinancialInformationOfParentWeightedAverageNumberOfSharesOutstandingBasic	244736000	shares
CY2009	sre	Schedule I Condensed Financial Information Of Parent Weighted Average Number Of Shares Outstanding Basic ScheduleICondensedFinancialInformationOfParentWeightedAverageNumberOfSharesOutstandingBasic	243339000	shares
CY2011	sre	Schedule I Condensed Financial Information Of Parent Diluted Earnings Per Common Share ScheduleICondensedFinancialInformationOfParentDilutedEarningsPerCommonShare	5.51
CY2010	sre	Schedule I Condensed Financial Information Of Parent Diluted Earnings Per Common Share ScheduleICondensedFinancialInformationOfParentDilutedEarningsPerCommonShare	2.86
CY2009	sre	Schedule I Condensed Financial Information Of Parent Diluted Earnings Per Common Share ScheduleICondensedFinancialInformationOfParentDilutedEarningsPerCommonShare	4.52
CY2011	sre	Schedule I Condensed Financial Information Of Parent Weighted Average Number Of Shares Outstanding Diluted ScheduleICondensedFinancialInformationOfParentWeightedAverageNumberOfSharesOutstandingDiluted	241523000	shares
CY2010	sre	Schedule I Condensed Financial Information Of Parent Weighted Average Number Of Shares Outstanding Diluted ScheduleICondensedFinancialInformationOfParentWeightedAverageNumberOfSharesOutstandingDiluted	247942000	shares
CY2009	sre	Schedule I Condensed Financial Information Of Parent Weighted Average Number Of Shares Outstanding Diluted ScheduleICondensedFinancialInformationOfParentWeightedAverageNumberOfSharesOutstandingDiluted	247384000	shares
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Current Portion Of Long Term Debt ScheduleICondensedFinancialInformationOfParentCurrentPortionOfLongTermDebt	8000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Current Portion Of Long Term Debt ScheduleICondensedFinancialInformationOfParentCurrentPortionOfLongTermDebt	32000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Current Due To Affiliates ScheduleICondensedFinancialInformationOfParentCurrentDueToAffiliates	1014000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Current Due To Affiliates ScheduleICondensedFinancialInformationOfParentCurrentDueToAffiliates	1331000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Other Current Liabilities ScheduleICondensedFinancialInformationOfParentOtherCurrentLiabilities	336000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Other Current Liabilities ScheduleICondensedFinancialInformationOfParentOtherCurrentLiabilities	374000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Total Current Liabilities ScheduleICondensedFinancialInformationOfParentTotalCurrentLiabilities	1604000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Total Current Liabilities ScheduleICondensedFinancialInformationOfParentTotalCurrentLiabilities	1737000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Long Term Debt ScheduleICondensedFinancialInformationOfParentLongTermDebt	3957000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Long Term Debt ScheduleICondensedFinancialInformationOfParentLongTermDebt	3140000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Other Long Term Liabilities ScheduleICondensedFinancialInformationOfParentOtherLongTermLiabilities	490000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Other Long Term Liabilities ScheduleICondensedFinancialInformationOfParentOtherLongTermLiabilities	441000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Shareholders Equity ScheduleICondensedFinancialInformationOfParentShareholdersEquity	9775000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Shareholders Equity ScheduleICondensedFinancialInformationOfParentShareholdersEquity	8990000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Total Liabilities And Shareholders Equity ScheduleICondensedFinancialInformationOfParentTotalLiabilitiesAndShareholdersEquity	15826000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Total Liabilities And Shareholders Equity ScheduleICondensedFinancialInformationOfParentTotalLiabilitiesAndShareholdersEquity	14308000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Income Taxes Payable ScheduleICondensedFinancialInformationOfParentIncomeTaxesPayable	246000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Cash And Cash Equivalents ScheduleICondensedFinancialInformationOfParentCashAndCashEquivalents	11000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Cash And Cash Equivalents ScheduleICondensedFinancialInformationOfParentCashAndCashEquivalents	157000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Due From Affiliates ScheduleICondensedFinancialInformationOfParentDueFromAffiliates	112000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Due From Affiliates ScheduleICondensedFinancialInformationOfParentDueFromAffiliates	27000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Income Taxes Receivable ScheduleICondensedFinancialInformationOfParentIncomeTaxesReceivable	190000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Other Current Assets ScheduleICondensedFinancialInformationOfParentOtherCurrentAssets	16000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Other Current Assets ScheduleICondensedFinancialInformationOfParentOtherCurrentAssets	11000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Total Current Assets ScheduleICondensedFinancialInformationOfParentTotalCurrentAssets	139000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Total Current Assets ScheduleICondensedFinancialInformationOfParentTotalCurrentAssets	385000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Investments In Subsidiaries ScheduleICondensedFinancialInformationOfParentInvestmentsInSubsidiaries	12209000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Investments In Subsidiaries ScheduleICondensedFinancialInformationOfParentInvestmentsInSubsidiaries	11447000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Due From Affiliates Noncurrent ScheduleICondensedFinancialInformationOfParentDueFromAffiliatesNoncurrent	1730000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Due From Affiliates Noncurrent ScheduleICondensedFinancialInformationOfParentDueFromAffiliatesNoncurrent	1683000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Deferred Income Taxes ScheduleICondensedFinancialInformationOfParentDeferredIncomeTaxes	1200000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Deferred Income Taxes ScheduleICondensedFinancialInformationOfParentDeferredIncomeTaxes	305000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Other Assets ScheduleICondensedFinancialInformationOfParentOtherAssets	548000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Other Assets ScheduleICondensedFinancialInformationOfParentOtherAssets	488000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Total Assets ScheduleICondensedFinancialInformationOfParentTotalAssets	15826000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Total Assets ScheduleICondensedFinancialInformationOfParentTotalAssets	14308000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Net Cash Used In Provided By Operating Activities ScheduleICondensedFinancialInformationOfParentNetCashUsedInProvidedByOperatingActivities	-287000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Dividends Received From Subsidiaries ScheduleICondensedFinancialInformationOfParentDividendsReceivedFromSubsidiaries	50000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Expenditures For Property Plant And Equipment ScheduleICondensedFinancialInformationOfParentExpendituresForPropertyPlantAndEquipment	2000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Purchase Of Trust Assets ScheduleICondensedFinancialInformationOfParentPurchaseOfTrustAssets	7000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Proceeds From Sales By Trust ScheduleICondensedFinancialInformationOfParentProceedsFromSalesByTrust	12000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Increase Decrease In Loans To Affiliates Net ScheduleICondensedFinancialInformationOfParentIncreaseDecreaseInLoansToAffiliatesNet	-118000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Cash Used In Provided By Investing Activities ScheduleICondensedFinancialInformationOfParentCashUsedInProvidedByInvestingActivities	-65000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Common Stock Dividends Paid ScheduleICondensedFinancialInformationOfParentCommonStockDividendsPaid	440000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Issuances Of Common Stock ScheduleICondensedFinancialInformationOfParentIssuancesOfCommonStock	28000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Repurchases Of Common Stock ScheduleICondensedFinancialInformationOfParentRepurchasesOfCommonStock	18000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Issuances Of Long Term Debt ScheduleICondensedFinancialInformationOfParentIssuancesOfLongTermDebt	799000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Payments On Long Term Debt ScheduleICondensedFinancialInformationOfParentPaymentsOnLongTermDebt	24000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Decrease Increase In Loans From Affiliates Net ScheduleICondensedFinancialInformationOfParentDecreaseIncreaseInLoansFromAffiliatesNet	-136000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Other ScheduleICondensedFinancialInformationOfParentOther	-3000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Cash Provided By Used In Financing Activities ScheduleICondensedFinancialInformationOfParentCashProvidedByUsedInFinancingActivities	206000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Decrease Increase In Cash And Cash Equivalents ScheduleICondensedFinancialInformationOfParentDecreaseIncreaseInCashAndCashEquivalents	-146000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Cash And Cash Equivalents Beginning Of Period ScheduleICondensedFinancialInformationOfParentCashAndCashEquivalentsBeginningOfPeriod	157000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Cash And Cash Equivalents End Of Period ScheduleICondensedFinancialInformationOfParentCashAndCashEquivalentsEndOfPeriod	11000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Net Cash Used In Provided By Operating Activities ScheduleICondensedFinancialInformationOfParentNetCashUsedInProvidedByOperatingActivities	218000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Dividends Received From Subsidiaries ScheduleICondensedFinancialInformationOfParentDividendsReceivedFromSubsidiaries	100000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Expenditures For Property Plant And Equipment ScheduleICondensedFinancialInformationOfParentExpendituresForPropertyPlantAndEquipment	1000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Proceeds From Sales By Trust ScheduleICondensedFinancialInformationOfParentProceedsFromSalesByTrust	11000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Increase Decrease In Loans To Affiliates Net ScheduleICondensedFinancialInformationOfParentIncreaseDecreaseInLoansToAffiliatesNet	1204000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Cash Used In Provided By Investing Activities ScheduleICondensedFinancialInformationOfParentCashUsedInProvidedByInvestingActivities	1314000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Common Stock Dividends Paid ScheduleICondensedFinancialInformationOfParentCommonStockDividendsPaid	364000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Issuances Of Common Stock ScheduleICondensedFinancialInformationOfParentIssuancesOfCommonStock	40000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Repurchases Of Common Stock ScheduleICondensedFinancialInformationOfParentRepurchasesOfCommonStock	502000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Issuances Of Long Term Debt ScheduleICondensedFinancialInformationOfParentIssuancesOfLongTermDebt	40000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Payments On Long Term Debt ScheduleICondensedFinancialInformationOfParentPaymentsOnLongTermDebt	565000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Decrease Increase In Loans From Affiliates Net ScheduleICondensedFinancialInformationOfParentDecreaseIncreaseInLoansFromAffiliatesNet	-40000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Other ScheduleICondensedFinancialInformationOfParentOther	9000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Cash Provided By Used In Financing Activities ScheduleICondensedFinancialInformationOfParentCashProvidedByUsedInFinancingActivities	-1382000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Decrease Increase In Cash And Cash Equivalents ScheduleICondensedFinancialInformationOfParentDecreaseIncreaseInCashAndCashEquivalents	150000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Cash And Cash Equivalents Beginning Of Period ScheduleICondensedFinancialInformationOfParentCashAndCashEquivalentsBeginningOfPeriod	7000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Cash And Cash Equivalents End Of Period ScheduleICondensedFinancialInformationOfParentCashAndCashEquivalentsEndOfPeriod	157000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Net Cash Used In Provided By Operating Activities ScheduleICondensedFinancialInformationOfParentNetCashUsedInProvidedByOperatingActivities	97000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Dividends Received From Subsidiaries ScheduleICondensedFinancialInformationOfParentDividendsReceivedFromSubsidiaries	150000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Expenditures For Property Plant And Equipment ScheduleICondensedFinancialInformationOfParentExpendituresForPropertyPlantAndEquipment	1000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Proceeds From Sale Of Short Term Investments ScheduleICondensedFinancialInformationOfParentProceedsFromSaleOfShortTermInvestments	152000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Purchase Of Trust Assets ScheduleICondensedFinancialInformationOfParentPurchaseOfTrustAssets	30000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Increase Decrease In Loans To Affiliates Net ScheduleICondensedFinancialInformationOfParentIncreaseDecreaseInLoansToAffiliatesNet	-1285000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Cash Used In Provided By Investing Activities ScheduleICondensedFinancialInformationOfParentCashUsedInProvidedByInvestingActivities	-1014000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Common Stock Dividends Paid ScheduleICondensedFinancialInformationOfParentCommonStockDividendsPaid	341000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Issuances Of Common Stock ScheduleICondensedFinancialInformationOfParentIssuancesOfCommonStock	73000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Repurchases Of Common Stock ScheduleICondensedFinancialInformationOfParentRepurchasesOfCommonStock	22000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Issuances Of Long Term Debt ScheduleICondensedFinancialInformationOfParentIssuancesOfLongTermDebt	1492000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Payments On Long Term Debt ScheduleICondensedFinancialInformationOfParentPaymentsOnLongTermDebt	314000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Decrease Increase In Loans From Affiliates Net ScheduleICondensedFinancialInformationOfParentDecreaseIncreaseInLoansFromAffiliatesNet	4000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Other ScheduleICondensedFinancialInformationOfParentOther	20000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Cash Provided By Used In Financing Activities ScheduleICondensedFinancialInformationOfParentCashProvidedByUsedInFinancingActivities	912000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Decrease Increase In Cash And Cash Equivalents ScheduleICondensedFinancialInformationOfParentDecreaseIncreaseInCashAndCashEquivalents	-5000000	USD
CY2009Q4	sre	Schedule I Condensed Financial Information Of Parent Cash And Cash Equivalents Beginning Of Period ScheduleICondensedFinancialInformationOfParentCashAndCashEquivalentsBeginningOfPeriod	12000000	USD
CY2009Q4	sre	Schedule I Condensed Financial Information Of Parent Cash And Cash Equivalents End Of Period ScheduleICondensedFinancialInformationOfParentCashAndCashEquivalentsEndOfPeriod	7000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Debt Instrument Principal Outstanding ScheduleICondensedFinancialInformationOfParentDebtInstrumentPrincipalOutstanding	3974000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Unamortized Discount On Long Term Debt ScheduleICondensedFinancialInformationOfParentUnamortizedDiscountOnLongTermDebt	9000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Debt Instrument Principal Outstanding ScheduleICondensedFinancialInformationOfParentDebtInstrumentPrincipalOutstanding	3182000000	USD
CY2010Q4	sre	Schedule I Condensed Financial Information Of Parent Unamortized Discount On Long Term Debt ScheduleICondensedFinancialInformationOfParentUnamortizedDiscountOnLongTermDebt	10000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Long Term Debt Maturities Repayments Of Principal In Next Twelve Months ScheduleICondensedFinancialInformationOfParentLongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	8000000	USD
CY2011	sre	Schedule I Condensed Financial Information Of Parent Other Income Net Gain Loss On Investments ScheduleICondensedFinancialInformationOfParentOtherIncomeNetGainLossOnInvestments	22000000	USD
CY2010	sre	Schedule I Condensed Financial Information Of Parent Other Income Net Gain Loss On Investments ScheduleICondensedFinancialInformationOfParentOtherIncomeNetGainLossOnInvestments	35000000	USD
CY2009	sre	Schedule I Condensed Financial Information Of Parent Other Income Net Gain Loss On Investments ScheduleICondensedFinancialInformationOfParentOtherIncomeNetGainLossOnInvestments	55000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Long Term Debt Maturities Repayments Of Principal In Year Five ScheduleICondensedFinancialInformationOfParentLongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	750000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Long Term Debt Maturities Repayments Of Principal After Year Five ScheduleICondensedFinancialInformationOfParentLongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1800000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Long Term Debt Maturities Repayments Of Principal In Year Two ScheduleICondensedFinancialInformationOfParentLongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	650000000	USD
CY2011Q4	sre	Schedule I Condensed Financial Information Of Parent Long Term Debt Maturities Repayments Of Principal In Year Three ScheduleICondensedFinancialInformationOfParentLongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	800000000	USD

Files In Submission

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$SRE
SEMPRA Stock $sre

2010 Q4 Form 8-K Financial Statement

#000008652112000042 Filed on May 11, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SRE SEMPRA Stock $sre

2010 Q4 Form 8-K Financial Statement

#000008652112000042 Filed on May 11, 2012

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SRE
SEMPRA Stock $sre