v3.4.0.3

Use of Collateral (Details) - USD ($) $ in Millions | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |  |
Margin deposits | [1] | $ 94 | $ 89
Natural gas and power prepayments |  | 36 | 34
Total margin deposits and natural gas and power prepayments with our counterparties | [2] | 130 | 123
Letters of credit issued |  | 629 | 600
First priority liens under power and natural gas agreements | [3] | 389 | 382
First priority liens under interest rate swap agreements |  | 100 | 92
Total letters of credit and first priority liens with our counterparties |  | 1,118 | 1,074
Margin deposits held by us posted by our counterparties | [1],[4] | 22 | 35
Letters of credit posted with us by our counterparties |  | 39 | 24
Total margin deposits and letters of credit posted with us by our counterparties |  | 61 | 59
Use of Collateral (Textuals) [Abstract] |  |  |
Margin And Prepayment Amounts Included In Other Assets |  | 14 | 22
Margin And Prepayment Amounts Included In Margin Deposits And Other Prepaid Expenses |  | 116 | 101
Champion Energy [Member] |  |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |  |
First priority liens under power and natural gas agreements |  | $ 364 | $ 345
[1] | Balances are subject to master netting arrangements and presented on a gross basis on our Consolidated Condensed Balance Sheets. We do not offset fair value amounts recognized for derivative instruments executed with the same counterparty under a master netting arrangement for financial statement presentation, and we do not offset amounts recognized for the right to reclaim, or the obligation to return, cash collateral with corresponding derivative instrument fair values. See Note 6 for further discussion of our derivative instruments subject to master netting arrangements.
[2] | At March 31, 2016 and December 31, 2015, $116 million and $101 million, respectively, were included in margin deposits and other prepaid expense and $14 million and $22 million, respectively, were included in other assets on our Consolidated Condensed Balance Sheets.
[3] | Includes $364 million and $345 million related to first priority liens under power supply contracts associated with our retail hedging activities at March 31, 2016 and December 31, 2015, respectively.
[4] | Included in other current liabilities on our Consolidated Condensed Balance Sheets.

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- Definition Derivative Collateral Right To Reclaim Cash And Natural Gas And Power Prepayments Total + References No definition available. + Details
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- Definition First priority liens under interest rate swap agreements + References No definition available. + Details
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- Definition First priority liens under power and natural gas agreements + References No definition available. + Details
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- Definition Letters of credit issued + References No definition available. + Details
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- Definition Letters of Credit Issued and First Priority Liens Under Power Natural Gas And Interest Rate Swap Agreements + References No definition available. + Details
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- Definition Margin And Prepayment Amounts Included In Margin Deposits And Other Prepaid Expenses + References No definition available. + Details
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- Definition Margin And Prepayment Amounts Included In Other Assets + References No definition available. + Details
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- Definition Natural gas and power prepayments + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The amount of cash or securities placed with a broker or counterparty as security for a trading or derivatives securities position which was partially obtained with funds provided by the broker dealer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8,17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition This element represents money paid in advance to protect the provider of a product or service, such as a lessor, against damage or nonpayment by the buyer or tenant (lessee) during the term of the agreement. Such damages may include physical damage to the property, theft of property, and other contractual breaches. Security deposits held may be interest or noninterest bearing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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