2.4.0.83130 - Disclosure - Nuclear Decommissioning Trusts (Tables)truefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0000764622duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_InvestmentsDebtAndEquitySecuritiesAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Nuclear Decommissioning Trusts2false 2us-gaap_AvailableForSaleSecuritiesTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> The following table includes the unrealized gains and losses based on the original cost of the investment and summarizes the fair value of APS’s nuclear decommissioning trust fund assets at June 30, 2013 and December 31, 2012 (dollars in millions):   <table style="text-align:left;WIDTH: 88%; BORDER-COLLAPSE: collapse; MARGIN-LEFT: 0.4in;" border="0" cellspacing="0" cellpadding="0" width="88%"> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="49%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> Fair Value</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> Total Unrealized Gains</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> Total Unrealized Losses</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="top" width="49%"> June 30, 2013</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" width="49%"> Equity securities</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%"> $</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="12%"> 233</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%"> $</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="12%"> 93</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%"> $</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="12%"> —</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="top" width="49%"> Fixed income securities</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2"> 368</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2"> 14</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2"> (6</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> )</td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="top" width="49%"> Net payables (a)</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> (6</td> <td style="PADDING-BOTTOM: 0.375pt; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%"> )</td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> —</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> —</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="49%"> Total</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="12%"> 595</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="12%"> 107</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="12%"> (6</td> <td style="PADDING-BOTTOM: 2.25pt; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> )</td></tr></table>   (a)                                 Net payables relate to pending securities sales and purchases.   <table style="text-align:left;WIDTH: 88%; BORDER-COLLAPSE: collapse; MARGIN-LEFT: 0.4in;" border="0" cellspacing="0" cellpadding="0" width="88%"> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="49%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> Fair Value</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> Total Unrealized Gains</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> Total Unrealized Losses</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="top" width="49%"> December 31, 2012</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" width="49%"> Equity securities</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%"> $</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="12%"> 204</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%"> $</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="12%"> 67</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%"> $</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="12%"> —</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="top" width="49%"> Fixed income securities</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2"> 371</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2"> 24</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2"> —</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="top" width="49%"> Net payables (a)</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> (4</td> <td style="PADDING-BOTTOM: 0.375pt; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%"> )</td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> —</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.64%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> —</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 49.42%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="49%"> Total</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="12%"> 571</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="12%"> 91</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.84%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.28%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.36%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="12%"> —</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%">  </td></tr></table>   (a)                                 Net payables relate to pending securities sales and purchases. </div>falsefalsefalsenonnum:textBlockItemTypenaTabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27337-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27198-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27161-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19, 20, 21 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a, b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false0Fair value of APS's nuclear decommissioning trust fund assets3false 2us-gaap_ScheduleOfRealizedGainLossTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> The following table sets forth approximate realized gains and losses and proceeds from the sale of securities by the nuclear decommissioning trust funds (dollars in millions):   <table style="text-align:left;WIDTH: 90%; BORDER-COLLAPSE: collapse; MARGIN-LEFT: 0.5in;" border="0" cellspacing="0" cellpadding="0" width="90%"> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 34.48%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="34%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 29.46%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="29%" colspan="5"> Three Months Ended June 30,</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 29.46%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="29%" colspan="5"> Six Months Ended June 30,</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.04%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 34.48%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="34%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> 2013</td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> 2012</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> 2013</td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> 2012</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.04%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 34.48%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="top" width="34%"> Realized gains</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.04%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="12%"> 1</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.04%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="12%"> 2</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.04%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="12%"> 3</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%"> $</td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.04%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="12%"> 4</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.04%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 34.48%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="top" width="34%"> Realized losses</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> (1</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%"> )</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> (1</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%"> )</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> (2</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%"> )</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2"> (2</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.04%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%"> )</td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 34.48%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="top" width="34%"> Proceeds from the sale of securities (a)</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2"> 119</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2"> 119</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2"> 254</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.78%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.34%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2"> 211</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.04%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%">  </td></tr> <tr style="padding:0;"> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="232"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="19"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="9"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="81"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="19"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="9"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="81"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="19"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="9"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="81"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="19"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="9"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="81"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="7"></td></tr></table>   (a)                                 Proceeds are reinvested in the trust. </div>falsefalsefalsenonnum:textBlockItemTypenaTabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27357-111563 false0Realized gains and losses and proceeds from the sale of securities by the nuclear decommissioning trust funds4false 2us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> The fair value of fixed income securities, summarized by contractual maturities, at June 30, 2013 is as follows (dollars in millions):   <table style="text-align:left;WIDTH: 46.66%; BORDER-COLLAPSE: collapse; MARGIN-LEFT: 2in;" border="0" cellspacing="0" cellpadding="0" width="46%"> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 66.76%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="66%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 5.36%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="5%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 25.74%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="25%" colspan="3"> Fair Value</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 66.76%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="66%"> Less than one year</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 5.36%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="5%">  </td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 3.96%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="3%" colspan="2"> $</td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 21.78%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="21%"> 11</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 66.76%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="66%"> 1 year - 5 years</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 5.36%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="5%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 25.74%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="25%" colspan="3"> 106</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 66.76%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="66%"> 5 years - 10 years</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 5.36%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="5%">  </td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 25.74%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="25%" colspan="3"> 100</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 66.76%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="66%"> Greater than 10 years</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 5.36%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="5%">  </td> <td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 25.74%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="25%" colspan="3"> 151</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">  </td></tr> <tr style="padding:0;"> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 66.76%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="66%"> Total</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 5.36%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="5%">  </td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 3.64%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="3%"> $</td> <td style="BORDER-BOTTOM: windowtext 2.25pt double; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 22.1%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="22%" colspan="2"> 368</td> <td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">  </td></tr> <tr style="padding:0;"> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="233"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="19"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="13"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="1"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="76"></td> <td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-TOP: medium none; BORDER-RIGHT: medium none;" width="7"></td></tr></table> </div>falsefalsefalsenonnum:textBlockItemTypenaTabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.No definition available.false0Fair value of fixed income securities, summarized by contractual maturitiesfalseNuclear Decommissioning Trusts (Tables)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.pinnaclewest.com/role/DisclosureNuclearDecommissioningTrustsTables14