2.4.0.8300210 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)truefalsefalse1false
falsefalseFROM_Jan01_2013_TO_Jun30_2013http://www.sec.gov/CIK0000072741duration2013-01-01T00:00:002013-06-30T00:00:001true
1nu_NotesToConsolidatedFinancialStatementsAbstractnu_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse| 1falsefalsefalse00falsefalsefalse | xbrli:stringItemTypestringfalse0
2false
2us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse| 1falsefalsefalse00<div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 10px"><td style="width: 8px; text-align:left;border-color:#000000;min-width:8px;"> </td><td style="width: 264px; text-align:left;border-color:#000000;min-width:264px;"> </td><td colspan="11" style="width: 373px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:373px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">For the Six Months Ended June 30, 2013</font></td></tr><tr style="height: 49px"><td colspan="2" style="width: 272px; text-align:left;border-color:#000000;min-width:272px;"><font style="FONT-STYLE: italic;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: left;">(Millions of Dollars)</font></td><td colspan="2" style="width: 85px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:85px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">Qualified Cash Flow Hedging Instruments</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 85px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:85px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">Unrealized Gains/(Losses) on Available-for-Sale Securities</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td colspan="2" style="width: 85px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:85px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">Pension, SERP and PBOP
Benefit Plans</font></td><td style="width: 13px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:13px;"> </td><td colspan="2" style="width: 85px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:85px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">Total</font></td></tr><tr style="height: 10px"><td colspan="2" style="width: 272px; text-align:left;border-color:#000000;min-width:272px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">AOCI as of January 1, 2013</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$ </font></td><td style="width: 75px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;"> (16.4)</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$ </font></td><td style="width: 75px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;"> 1.3</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$ </font></td><td style="width: 75px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;"> (57.8)</font></td><td style="width: 13px; text-align:right;border-color:#000000;min-width:13px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$ </font></td><td style="width: 75px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;"> (72.9)</font></td></tr><tr style="height: 10px"><td style="width: 8px; text-align:left;border-color:#000000;min-width:8px;"> </td><td style="width: 264px; text-align:left;border-color:#000000;min-width:264px;"> </td><td style="width: 10px; text-align:right;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"> </td><td style="width: 13px; text-align:right;border-color:#000000;min-width:13px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"> </td></tr><tr style="height: 10px"><td colspan="2" style="width: 272px; text-align:left;border-color:#000000;min-width:272px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Other Comprehensive Income Before Reclassifications</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;"> - </font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;"> (0.7)</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;"> - </font></td><td style="width: 13px; text-align:right;border-color:#000000;min-width:13px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;"> (0.7)</font></td></tr><tr style="height: 10px"><td colspan="2" style="width: 272px; text-align:left;border-color:#000000;min-width:272px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Amounts Reclassified from AOCI</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">1.0</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;"> - </font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">3.1</font></td><td style="width: 13px; text-align:right;border-color:#000000;min-width:13px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">4.1</font></td></tr><tr style="height: 10px"><td colspan="2" style="width: 272px; text-align:left;border-color:#000000;min-width:272px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Net Other Comprehensive Income</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">1.0</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(0.7)</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">3.1</font></td><td style="width: 13px; text-align:right;border-color:#000000;min-width:13px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 75px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">3.4</font></td></tr><tr style="height: 10px"><td colspan="2" style="width: 272px; text-align:left;border-color:#000000;min-width:272px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">AOCI as of June 30, 2013</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 75px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(15.4)</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 75px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">0.6</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 75px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(54.7)</font></td><td style="width: 13px; text-align:right;border-color:#000000;min-width:13px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 75px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:75px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(69.5)</font></td></tr></table></div><p style='margin-top: 0pt; margin-bottom: 0pt;'></p><div><table style="border-collapse:collapse;margin-top:20px;"><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; text-align:left;border-color:#000000;min-width:127px;"> </td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; text-align:left;border-color:#000000;min-width:127px;"> </td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:left;border-color:#000000;min-width:112px;"> </td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"> </td><td colspan="2" style="width: 137px; text-align:center;border-color:#000000;min-width:137px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">For the Three Months Ended </font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td colspan="2" style="width: 137px; text-align:center;border-color:#000000;min-width:137px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">For the Six Months Ended </font></td><td style="width: 15px; text-align:center;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:center;border-color:#000000;min-width:112px;"> </td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"> </td><td colspan="2" style="width: 137px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:137px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">June 30, 2013</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td colspan="2" style="width: 137px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:137px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">June 30, 2013</font></td><td style="width: 15px; text-align:center;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:center;border-color:#000000;min-width:112px;"> </td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"> </td><td colspan="2" style="width: 137px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:137px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">Amount Reclassified</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td colspan="2" style="width: 137px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:137px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">Amount Reclassified</font></td><td style="width: 15px; text-align:center;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:center;border-color:#000000;min-width:112px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">Statements of Income</font></td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"><font style="FONT-STYLE: italic;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: left;">(Millions of Dollars)</font></td><td colspan="2" style="width: 137px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:137px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">from AOCI</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td colspan="2" style="width: 137px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:137px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">from AOCI</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; border-bottom-style:solid;border-bottom-width:1px;text-align:center;border-color:#000000;min-width:112px;"><font style="FONT-WEIGHT: bold;FONT-FAMILY: Arial;FONT-SIZE: 7pt;COLOR: #000000;TEXT-ALIGN: center;">Line Item Impacted</font></td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Qualified Cash Flow Hedging Instruments</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 127px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(0.8)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 127px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(1.7)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; border-top-style:solid;border-top-width:1px;text-align:center;border-color:#000000;min-width:112px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">Interest Expense</font></td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Tax Benefit</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">0.3</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">0.7</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:center;border-color:#000000;min-width:112px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">Income Tax Expense</font></td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Qualified Cash Flow Hedging Instruments, Net of Tax</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 127px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(0.5)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 127px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(1.0)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:left;border-color:#000000;min-width:112px;"> </td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:127px;"> </td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:127px;"> </td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:left;border-color:#000000;min-width:112px;"> </td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Pension, SERP and PBOP Benefit Plan Costs:</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; text-align:right;border-color:#000000;min-width:127px;"> </td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; text-align:right;border-color:#000000;min-width:127px;"> </td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:left;border-color:#000000;min-width:112px;"> </td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Amortization of Actuarial Losses</font></td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 127px; text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(2.2)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 127px; text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(4.7)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:center;border-color:#000000;min-width:112px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;"><sup>(1)</sup></font></td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Amortization of Prior Service Cost</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">0.0</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(0.1)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:center;border-color:#000000;min-width:112px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;"><sup>(1)</sup></font></td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Total Pension, SERP and PBOP Benefit Plan Costs</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(2.2)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-top-style:solid;border-top-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">(4.8)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:center;border-color:#000000;min-width:112px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;"><sup>(1)</sup></font></td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: left;">Tax Benefit</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">0.7</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: right;">1.7</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:center;border-color:#000000;min-width:112px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;TEXT-ALIGN: center;">Income Tax Expense</font></td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">Pension, SERP and PBOP Benefit Plan Costs, Net of Tax</font></td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 127px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">(1.5)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 127px; border-top-style:solid;border-top-width:1px;border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">(3.1)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:left;border-color:#000000;min-width:112px;"> </td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:127px;"> </td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:10px;"> </td><td style="width: 127px; border-top-style:solid;border-top-width:1px;text-align:left;border-color:#000000;min-width:127px;"> </td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:left;border-color:#000000;min-width:112px;"> </td></tr><tr style="height: 12px"><td style="width: 280px; text-align:left;border-color:#000000;min-width:280px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">Total Amount Reclassified from AOCI, Net of Tax</font></td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 127px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">(2.0)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 10px; border-bottom-style:solid;border-bottom-width:1px;text-align:left;border-color:#000000;min-width:10px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">$</font></td><td style="width: 127px; border-bottom-style:solid;border-bottom-width:1px;text-align:right;border-color:#000000;min-width:127px;"><font style="FONT-FAMILY: Arial;FONT-SIZE: 8pt;COLOR: #000000;">(4.1)</font></td><td style="width: 15px; text-align:left;border-color:#000000;min-width:15px;"> </td><td style="width: 112px; text-align:left;border-color:#000000;min-width:112px;"> </td></tr></table></div>falsefalsefalse | nonnum:textBlockItemTypenaTabular disclosure of the components of accumulated other comprehensive income (loss).Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580
false0
falseACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)UnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.nu.com/role/ACCUMULATEDOTHERCOMPREHENSIVEINCOMETables12