2.2.0.25falsefalse0507 - Disclosure - Commitments (Tables)truefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010
USD ($)
USD ($) / shares
$Jan-01-2010_Dec-31-2010http://www.sec.gov/CIK0000092122duration2010-01-01T00:00:002010-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0so_CommitmentsTablesAbstractsofalsenadurationCommitments.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse| 1falsefalsefalse00falsefalsefalsefalsefalse | Otherxbrli:stringItemTypestringCommitments.falsefalse
3false0us-gaap_RecordedUnconditionalPurchaseObligationsTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel| 1falsefalsefalse00<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" -->
<!-- Begin Block Tagged Note Table: SO-20101231_note7_table1 - us-gaap:RecordedUnconditionalPurchaseObligationsTextBlock-->
<div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif">
<div align="center">
<table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<tr valign="bottom">
<td width="40%"> </td>
<td width="5%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
<td width="5%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
<td width="5%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
<td width="5%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
<td width="5%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
</tr>
<tr style="font-size: 10pt" valign="bottom">
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="19" style="border-bottom: 1px solid #000000"><b>Commitments</b></td>
</tr>
<tr style="font-size: 10pt" valign="bottom">
<td style="border-bottom: 1px solid #000000"> </td>
<td style="border-bottom: 1px solid #000000"> </td>
<td nowrap="nowrap" align="center" colspan="3" style="border-bottom: 1px solid #000000">Natural Gas</td>
<td style="border-bottom: 1px solid #000000"> </td>
<td nowrap="nowrap" align="center" colspan="3" style="border-bottom: 1px solid #000000">Coal</td>
<td style="border-bottom: 1px solid #000000"> </td>
<td nowrap="nowrap" align="center" colspan="3" style="border-bottom: 1px solid #000000">Nuclear Fuel</td>
<td style="border-bottom: 1px solid #000000"> </td>
<td nowrap="nowrap" align="center" colspan="3" style="border-bottom: 1px solid #000000">Biomass Fuel</td>
<td style="border-bottom: 1px solid #000000"> </td>
<td nowrap="nowrap" align="center" colspan="3" style="border-bottom: 1px solid #000000">Purchased Power*</td>
</tr>
<tr style="font-size: 10pt" valign="bottom">
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="18"><i style="font-size: 8pt">(in millions)</i></td>
</tr>
<!-- End Table Head -->
<!-- Begin Table Body -->
<tr valign="bottom"><!-- Blank Space -->
<td>
<div style="margin-left:15px; text-indent:-15px"> 
</div></td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">2011
</div></td>
<td> </td>
<td align="right">$</td>
<td align="right">1,357</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">3,810</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">335</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">—</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">260</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">2012
</div></td>
<td> </td>
<td> </td>
<td align="right">1,226</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">1,882</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">207</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">14</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">269</td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">2013
</div></td>
<td> </td>
<td> </td>
<td align="right">1,054</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">1,362</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">220</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">18</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">237</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">2014
</div></td>
<td> </td>
<td> </td>
<td align="right">908</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">873</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">208</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">18</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">268</td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">2015
</div></td>
<td> </td>
<td> </td>
<td align="right">779</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">783</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">141</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">18</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">291</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">2016 and thereafter
</div></td>
<td> </td>
<td> </td>
<td align="right">3,413</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">1,798</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">807</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">110</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">2,439</td>
<td> </td>
</tr>
<tr style="font-size: 1px">
<td colspan="21" align="left" style="border-top: 1px solid #000000"> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">Total
</div></td>
<td> </td>
<td align="right">$</td>
<td align="right">8,737</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">10,508</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">1,918</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">178</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">3,764</td>
<td> </td>
</tr>
<tr style="font-size: 1px">
<td colspan="21" align="left" style="border-top: 3px double #000000"> </td>
</tr>
<!-- End Table Body -->
</table>
</div>
<div style="margin-top: 3pt">
<table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; text-align: left">
<tr>
<td width="3%"></td>
<td width="1%"></td>
<td width="96%"></td>
</tr>
<tr valign="top">
<td nowrap="nowrap" align="left">*</td>
<td> </td>
<td>Certain PPAs reflected in the table are accounted for as operating leases.</td>
</tr>
</table>
</div>
</div>
<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" -->
<!-- Begin Block Tagged Notefalsefalsefalsefalsefalse | Otherus-types:textBlockItemTypestringDescribes and quantifies unconditional purchase obligations that are recognized as a liability on the balance sheet, including the nature and term of the unconditional purchase obligations; the aggregate amount of payments for each of the five years following the date of the latest balance sheet; and the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings associated with suppliers' financing arrangements.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 47
-Paragraph 10
-Subparagraph b
falsefalse
4false0us-gaap_OperatingLeasesOfLesseeDisclosureTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel| 1falsefalsefalse00<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" -->
<!-- Begin Block Tagged Note Table: SO-20101231_note7_table2 - us-gaap:OperatingLeasesOfLesseeDisclosureTextBlock-->
<div align="left" style="font-size: 10pt; font-family: 'Times New Roman',Times,serif">
<div align="center">
<table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<tr valign="bottom">
<td width="52%"> </td>
<td width="5%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
<td width="5%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
<td width="5%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
<td width="5%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
</tr>
<tr style="font-size: 10pt" valign="bottom">
<td style="border-bottom: 1px solid #000000"> </td>
<td style="border-bottom: 1px solid #000000"> </td>
<td nowrap="nowrap" align="center" colspan="15" style="border-bottom: 1px solid #000000"><b>Minimum Lease Payments</b></td>
</tr>
<tr style="font-size: 10pt" valign="bottom">
<td style="border-bottom: 1px solid #000000"> </td>
<td style="border-bottom: 1px solid #000000"> </td>
<td nowrap="nowrap" align="center" colspan="3" style="border-bottom: 1px solid #000000">Plant Daniel</td>
<td style="border-bottom: 1px solid #000000"> </td>
<td nowrap="nowrap" align="center" colspan="3" style="border-bottom: 1px solid #000000">Barges & Rail Cars</td>
<td style="border-bottom: 1px solid #000000"> </td>
<td nowrap="nowrap" align="center" colspan="3" style="border-bottom: 1px solid #000000">Other</td>
<td style="border-bottom: 1px solid #000000"> </td>
<td nowrap="nowrap" align="center" colspan="3" style="border-bottom: 1px solid #000000">Total</td>
</tr>
<tr style="font-size: 10pt" valign="bottom">
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="11"><i style="font-size: 8pt">(in millions)</i></td>
</tr>
<!-- End Table Head -->
<!-- Begin Table Body -->
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">2011
</div></td>
<td> </td>
<td align="right">$</td>
<td align="right">28</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">74</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">52</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">154</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">2012
</div></td>
<td> </td>
<td> </td>
<td align="right">—</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">58</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">35</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">93</td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">2013
</div></td>
<td> </td>
<td> </td>
<td align="right">—</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">48</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">29</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">77</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">2014
</div></td>
<td> </td>
<td> </td>
<td align="right">—</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">39</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">24</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">63</td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">2015
</div></td>
<td> </td>
<td> </td>
<td align="right">—</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">14</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">17</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">31</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">2016 and thereafter
</div></td>
<td> </td>
<td> </td>
<td align="right">—</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">16</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">87</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">103</td>
<td> </td>
</tr>
<tr style="font-size: 1px">
<td colspan="17" align="left" style="border-top: 1px solid #000000"> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">Total
</div></td>
<td> </td>
<td align="right">$</td>
<td align="right">28</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">249</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">244</td>
<td> </td>
<td> </td>
<td align="right">$</td>
<td align="right">521</td>
<td> </td>
</tr>
<tr style="font-size: 1px">
<td colspan="17" align="left" style="border-top: 3px double #000000"> </td>
</tr>
<!-- End Table Body -->
</table>
</div>
</div>
<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" -->
<!-- Begin Block Tagged Notefalsefalsefalsefalsefalse | Otherus-types:textBlockItemTypestringGeneral description of lessee's leasing arrangements including: (1) The basis on which contingent rental payments are determined, (2) The existence and terms of renewal or purchase options and escalation clauses, (3) Restrictions imposed by lease arrangements, such as those concerning dividends, additional debt, and further leasing, (4) Rent holidays, rent concessions, or leasehold improvement incentives and unusual provisions or conditions. Disclosure may also include the specific period used to amortize material leasehold improvements made at the inception of the lease or during the lease term. Additionally, for operating leases having initial or remaining noncancelable lease terms in excess of one year: (a) future minimum rental payments required as of the date of the latest balance sheet presented, in the aggregate and for each of the five succeeding fiscal years, (b) the total of minimum rentals to be received in the future under noncancelable subleases as of the date of the latest balance sheet presented, and (c) for all operating leases, rental expense for each period for which an income statement is presented, with separate amounts for minimum rentals, contingent rentals, and sublease rentals. Rental payments under leases with terms of a month or less that were not renewed need not be included.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 13
-Paragraph 16
-Subparagraph b, c, d
falsefalse
13Commitments (Tables)UnKnownUnKnownUnKnownUnKnownfalsetrue