1.0.0.3 false Guarantees false 1 $ false false shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 usd Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 usdPerShare Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 2 NOTES TO FINANCIAL STATEMENTS 0 ceg_NotesToFinancialStatementsAbstract ceg false na duration string Notes To Financial Statements [Abstract] false false false false false true false false false 1 false false 0 0 false false Notes To Financial Statements [Abstract] false 3 Guarantees 1 us-gaap_ScheduleOfGuaranteeObligationsTextBlock us-gaap true na duration string No definition available. false false false false false false false false false 1 false false 0 0 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=utf-8"> <META content="MSHTML 6.00.6000.16825" name=GENERATOR></HEAD> <BODY> Guarantees Our guarantees do not represent incremental Constellation Energy obligations; rather they primarily represent parental guarantees of subsidiary obligations. The following table summarizes the maximum exposure by guarantor based on the stated limit of our outstanding guarantees:  <DIV align=center> <TABLE cellSpacing=0 cellPadding=0 border=0> <TBODY> <TR> <TD style="FONT-FAMILY: times" align=left width=157></TD> <TD style="FONT-FAMILY: times" width=12></TD> <TD style="FONT-FAMILY: times" align=right width=4></TD> <TD style="FONT-FAMILY: times" width=51></TD> <TD style="FONT-FAMILY: times" width=3></TD></TR> <TR vAlign=bottom> <TH style="FONT-FAMILY: times" align=left>At June 30, 2009 </TH> <TH style="FONT-FAMILY: times"> </TH> <TH style="FONT-FAMILY: times" align=middle colSpan=2>Stated Limit </TH> <TH style="FONT-FAMILY: times"> </TH></TR> <TR style="FONT-SIZE: 1.5pt" vAlign=bottom> <TH style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align=middle colSpan=4> </TH> <TH style="FONT-FAMILY: times"> </TH></TR> <TR vAlign=bottom> <TH style="FONT-FAMILY: times" align=left>  </TH> <TH style="FONT-FAMILY: times"> </TH> <TH style="FONT-FAMILY: times" align=middle colSpan=2>(In billions) </TH> <TH style="FONT-FAMILY: times"> </TH></TR> <TR vAlign=bottom bgColor=#cceeff> <TD style="FONT-FAMILY: times"> Constellation Energy guarantees</TD> <TD style="FONT-FAMILY: times"> </TD> <TD style="FONT-FAMILY: times" align=right>$</TD> <TD style="FONT-FAMILY: times" align=right>13.7</TD> <TD style="FONT-FAMILY: times"> </TD></TR> <TR vAlign=bottom bgColor=white> <TD style="FONT-FAMILY: times"> Merchant energy business guarantees</TD> <TD style="FONT-FAMILY: times"> </TD> <TD style="FONT-FAMILY: times"> </TD> <TD style="FONT-FAMILY: times" align=right>0.1</TD> <TD style="FONT-FAMILY: times"> </TD></TR> <TR vAlign=bottom bgColor=#cceeff> <TD style="FONT-FAMILY: times"> BGE guarantees</TD> <TD style="FONT-FAMILY: times"> </TD> <TD style="FONT-FAMILY: times"> </TD> <TD style="FONT-FAMILY: times" align=right>0.3</TD> <TD style="FONT-FAMILY: times"> </TD></TR> <TR style="FONT-SIZE: 1.5pt" vAlign=top> <TD style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" colSpan=4> </TD> <TD style="FONT-FAMILY: times"> </TD></TR> <TR vAlign=bottom bgColor=white> <TD style="FONT-FAMILY: times"> Total guarantees</TD> <TD style="FONT-FAMILY: times"> </TD> <TD style="FONT-FAMILY: times" align=right>$</TD> <TD style="FONT-FAMILY: times" align=right>14.1</TD> <TD style="FONT-FAMILY: times"> </TD></TR> <TR style="FONT-SIZE: 1.5pt" vAlign=top> <TD style="BORDER-BOTTOM: #000000 2.25pt double; FONT-FAMILY: times" colSpan=4> </TD> <TD style="FONT-FAMILY: times"> </TD></TR></TBODY></TABLE></DIV>         At June 30, 2009, Constellation Energy had a total of $14.1 billion in guarantees outstanding related to loans, credit facilities, and contractual performance of certain of its subsidiaries as described below. <UL> <DL compact> <DT style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"> <DD style="FONT-FAMILY: times">Constellation Energy guaranteed a face amount of $13.7 billion as follows: <DL compact> <DT style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"> <DD style="FONT-FAMILY: times">Constellation Energy guaranteed a face amount of $12.7 billion on behalf of our merchant energy subsidiaries to allow those subsidiaries the flexibility needed to conduct business with counterparties without having to post other forms of collateral. Our estimated net exposure for obligations under commercial transactions covered by these guarantees was approximately $2.5 billion at June 30, 2009, which represents the total amount the parent company could be required to fund based on June 30, 2009 market prices. For those guarantees related to our derivative liabilities, the fair value of the obligation is recorded in our Consolidated Balance Sheets. <DT style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"> <DD style="FONT-FAMILY: times">Constellation Energy guaranteed $0.9 billion primarily on behalf of our nuclear generating facilities for nuclear insurance and credit support to ensure these plants have funds to meet expenses and obligations to safely operate and maintain the plants. <DT style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"> <DD style="FONT-FAMILY: times">Constellation Energy guaranteed $0.1 billion to its other nonregulated businesses. </DD></DL> <DT style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"> <DD style="FONT-FAMILY: times">Our merchant energy business guaranteed $72.0 million for loans, performance guarantees and other payment obligations primarily related to certain power projects in which we have an investment. <DT style="MARGIN-BOTTOM: -11pt; FONT-FAMILY: times"> <DD style="FONT-FAMILY: times">BGE guaranteed the Trust Preferred Securities of $250.0 million of BGE Capital Trust II. </DD></DL></UL></BODY></HTML> Guarantees Our guarantees do not represent incremental Constellation Energy obligations; rather they primarily represent parental guarantees of subsidiary false false No definition available. 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