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v3.10.0.1

Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Deferred tax liabilities: |  |
Emissions allowances | $ 15 | $ 15
Derivatives, net | 37 | 17
Investment in projects | 180 | 337
Discount/premium on notes | 0 | 1
Deferred financing costs | 21 | 2
Other | 1 | 5
Discontinued operations | 36 | 49
Total deferred tax liabilities | 290 | 426
Deferred tax assets: |  |
Deferred compensation, accrued vacation and other reserves | 134 | 141
Difference between book and tax basis of property | 554 | 611
Goodwill | 11 | 38
Differences between book and tax basis of contracts | 38 | 52
Pension and other postretirement benefits | 87 | 74
Equity compensation | 9 | 10
Bad debt reserve | 14 | 14
U.S. capital loss carryforwards | 0 | 1
U.S. Federal net operating loss carryforwards | 2,241 | 596
Foreign net operating loss carryforwards | 62 | 66
State net operating loss carryforwards | 379 | 128
Foreign capital loss carryforwards | 1 | 1
Federal and state tax credit carryforwards | 381 | 368
Federal benefit on state uncertain tax positions | 6 | 7
Intangibles amortization (excluding goodwill) | 21 | 98
Interest disallowance carryforward per §163(j) of the Tax Act | 102 | 0
Inventory obsolescence | 7 | 12
Discontinued operations | 17 | 185
Total deferred tax assets | 4,064 | 2,402
Valuation allowance | (3,812) | (1,855)
Discontinued operations | 19 | (8)
Total deferred tax assets, net of valuation allowance | 271 | 539
NRG's net deferred tax position |  |
Net deferred tax liability | (19) |
Net deferred tax asset |  | 113
Continuing Operations |  |
NRG's net deferred tax position |  |
Deferred tax asset | 46 | 6
Deferred tax liability— continuing operations | 65 | 21
Discontinued Operations |  |
NRG's net deferred tax position |  |
Deferred tax asset | $ 0 | $ 128

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- Definition The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from differences between the book and tax basis of contracts, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. + References No definition available. + Details
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- Definition The tax effect as of the balance sheet date of the amount of the estimated future tax reductions attributable to the difference between the tax basis and the generally accepted accounting principles basis of a federal benefit on state unrecognized tax benefits which will decrease future taxable income when such basis difference reverses. + References No definition available. + Details
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- Definition The tax effect as of the balance sheet date of the amount of future tax deductions arising from foreign capital losses in excess of statutory limitations in historical filings, and which can only be utilized if sufficient tax-basis income is generated in future periods and tax laws are provided to continue to allow such utilization. + References No definition available. + Details
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- Definition The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from deferred financing costs, which can only be deducted for tax purposes when relevant losses are realized or actual obligations are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. + References No definition available. + Details
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