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v2.4.1.9

Income Taxes (Deferred Tax Assets and Deferred Tax Liabilities) (Details) (USD $) In Millions, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Deferred Tax Liabilities: |  |
Differences between book and tax basis of property | $ (2,364)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | $ (2,178)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Other taxable temporary differences | (302)us-gaap_DeferredTaxLiabilitiesOther | (337)us-gaap_DeferredTaxLiabilitiesOther
Total deferred tax liability | (2,666)us-gaap_DeferredTaxLiabilities | (2,515)us-gaap_DeferredTaxLiabilities
Deferred Tax Assets: |  |
Operating loss carryforwards | 2,224 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | 2,108 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Capital loss carryforwards | 137 us-gaap_DeferredTaxAssetsCapitalLossCarryforwards | 103 us-gaap_DeferredTaxAssetsCapitalLossCarryforwards
Bad debt and other book provisions | 221 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals | 277 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
Retirement costs | 275 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits | 291 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits
Tax credit carryforwards | 58 aes_DeferredTaxAssetsTaxCreditCarryforwardsGross | 38 aes_DeferredTaxAssetsTaxCreditCarryforwardsGross
Other deductible temporary differences | 363 us-gaap_DeferredTaxAssetsOther | 420 us-gaap_DeferredTaxAssetsOther
Total gross deferred tax asset | 3,278 us-gaap_DeferredTaxAssetsGross | 3,237 us-gaap_DeferredTaxAssetsGross
Less: valuation allowance | (997)us-gaap_DeferredTaxAssetsValuationAllowance | (1,090)us-gaap_DeferredTaxAssetsValuationAllowance
Total net deferred tax asset | 2,281 us-gaap_DeferredTaxAssetsNet | 2,147 us-gaap_DeferredTaxAssetsNet
Net deferred tax asset (liability) | $ (385)us-gaap_DeferredTaxAssetsLiabilitiesNet | $ (368)us-gaap_DeferredTaxAssetsLiabilitiesNet

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314 + Details
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