Carrying amount as of the balance sheet date, included in discontinued operations, of cash placed with a broker, futures clearing merchant or counterparty as security for a trading, derivative or non-derivative position and/or accounts payable. No authoritative reference available. No authoritative reference available. No authoritative reference available. Net change in notes, receivables and payables from affiliates (Channelview). No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Non-cash distributions to CenterPoint Energy, Inc. No authoritative reference available. The increases/decreases in non-cash gains/losses related to future periods based on current changes in forward commodity prices for derivative instruments receiving mark-to-market accounting treatment and the ineffective portion of cash flow hedges, plus amortization of option premiums. No authoritative reference available. Net gains or losses resulting from the sale or disposal of assets and emission and exchange allowances. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The net change during the reporting period in other operating current assets not otherwise defined in the taxonomy. No authoritative reference available. Represents charges for Western states litigation and similar settlements. No authoritative reference available. No authoritative reference available. No authoritative reference available. Sum of operating income/loss and nonoperating income/loss before income taxes pertaining to continuing operations. No authoritative reference available. No authoritative reference available. No authoritative reference available. Excluding warranties and unconditional purchase obligations, describes any existing condition, situation, or set of circumstances involving uncertainty as of the balance sheet date (or prior to issuance of the financial statements) as to a probable or reasonably possible loss incurred by an entity that will ultimately be resolved when one or more future events occur or fail to occur, and typically discloses the amount of loss recorded or a range of possible loss, or an assertion that no reasonable estimate can be made. Includes environmental contingencies. No authoritative reference available. The cash outflow to aquire emission allowances. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The net change in derivative assets and liabilities not included in earnings during the period. Includes net option premiums purchased/sold and settlement of exchange transactions prior to the contractual period. No authoritative reference available. No authoritative reference available. No authoritative reference available. Carrying amount as of the balance sheet date of the liabilities arising from derivative contracts and hedging activities, which are expected to be paid or otherwise disposed of after a year or beyond the normal operating cycle, if longer. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The item represents the net aggregate carrying amount of our cost-method investment in and net receivables from Channelview as reported on the balance sheet. (The value of the investment and net receivables reflect any associated impairments recognized.) No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Description of circumstances surrounding the bankruptcy filings and subsequent asset sale of Channelview. No authoritative reference available. Interest earned on temporary cash investments, net margin deposits and other minor interest income-generating activities. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The non-cash gains/losses included in cost of sales related to current changes in forward commodity prices for derivative instruments receiving mark-to-market accounting treatment which will settle in future periods and ineffectiveness on cash flow hedges. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Net change during the reporting period in cash placed with / held from a futures clearing merchant or counterparty as a security for a trading, derivative or non-derivative transactions, as well as, accounts receivable/payable. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Description of any concentration of labor subject to collective bargaining agreements, including the general nature of the risk. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Carrying amount as of the balance sheet date of cash placed with a broker, futures clearing merchant or counterparty as security for a trading, derivative or non-derivative position and/or accounts payable. No authoritative reference available. Represents charges incurred for which payments were not made during the period for Western States litigation and similar settlements. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Net changes to accumulated comprehensive income during the period related to deferred benefits actuarial net gain (loss) and net prior service costs, after tax. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Reflects the difference between the fair value of payments made to legally extinguish a debt and its carrying value at that time. This item includes associated write-off of amounts previously capitalized as debt issuance costs. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The non-cash gains/losses included in revenue related to current changes in forward commodity prices for derivative instruments receiving mark-to-market accounting treatment which will settle in future periods and ineffectiveness on cash flow hedges. No authoritative reference available. No authoritative reference available. No authoritative reference available. Loss recognized during the period resulting from write-downs of the carrying amounts of goodwill and long-lived assets to fair value. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Represents the difference between payaments made and charges incurrred during the period for Western States litigation and similar settlements. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Overall income (loss) from a disposal group that is classified as a component of the entity, net of income tax, reported as a separate component of income before extraordinary items and the cumulative effect of accounting changes. Includes the following (net of tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal. No authoritative reference available. No authoritative reference available. No authoritative reference available. Total obligations, excluding long-term debt, incurred as part of normal operations that are expected to be repaid beyond the following twelve months. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The net change during the reporting period in other current operating obligations not otherwise defined in the taxonomy. No authoritative reference available. No authoritative reference available. No authoritative reference available. The cash inflow from sales of emission and exchange allowances. No authoritative reference available. No authoritative reference available. No authoritative reference available. Total of all Stockholders' Equity (deficit) items. This excludes temporary equity and is sometimes called permanent equity No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Sum of the carrying amounts as of the balance sheet date of all assets, excluding property, plant and equipment, that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer. No authoritative reference available. No authoritative reference available. No authoritative reference available. Value of stock issued during the period as a result of any share-based compensation plan other than an employee stock ownership plan (ESOP) and / or as a result of the employee stock purchase plan (ESPP). No authoritative reference available. Amount represents the noncurrent portion of pre-payments made under operating leases for one of our subsidiaries. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Description of the terms of a settlement agreement which resolved the legal matter, including amount and timing of payment, and the nature of rights obtained or lost (such as patent, trademark, copyright, license and franchise rights). No authoritative reference available. No authoritative reference available. No authoritative reference available. Carrying amount as of the balance sheet date of cash held from a broker, futures clearing merchant or counterparty as security for a trading, derivative or non-derivative position and/or accounts receivable. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Net gains or losses resulting from the sale or disposal of assets and emission and exchange allowances. No authoritative reference available. No authoritative reference available. No authoritative reference available. The cash outflow associated with debt extinguishment activities. No authoritative reference available. No authoritative reference available. No authoritative reference available. This element is used to capture capital stock activity. No authoritative reference available. No authoritative reference available. No authoritative reference available. Carrying amount as of the balance sheet date of the liabilities arising from derivative instruments and hedging activities, which are expected to be paid or otherwise disposed of within a year or the normal operating cycle, if longer. No authoritative reference available. Carrying amount as of the balance sheet date, included in discontinued operations, of cash held from a broker, futures clearing merchant or counterparty as security for a trading, derivative or non-derivative position and/or accounts receivable. No authoritative reference available. No authoritative reference available. No authoritative reference available. Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. This caption alerts the reader that one or more notes to the financial statements disclose pertinent information about the entity's commitments and contingencies. No authoritative reference available. No authoritative reference available. No authoritative reference available. Balance after initial adjustment to apply FIN 48 No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Description of savings plan and deferred compensation arrangements other than defined benefit pension and postretirement plans and share-based compensation. No authoritative reference available. No authoritative reference available. No authoritative reference available. This item represents trading and available-for-sale securities, which are valued based upon unadjusted quoted prices. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The cash inflow from the sale of all assets, excluding emission and exchange allowances, net of selling costs. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. This element describes material sales of all assets including emission and exchange allowances. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available.