2.2.0.25falsefalse006080 - Disclosure - Post Employment Benefitstruefalsefalse1falsefalseUSDfalsefalse9/1/2010 - 2/28/2011 USD ($) USD ($) / shares $c00053http://www.sec.gov/CIK0000104207duration2010-09-01T00:00:002011-02-28T00:00:00u000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u003Standardhttp://www.xbrl.org/2003/instancepurexbrli0u001Standardhttp://www.xbrl.org/2003/instancesharesxbrli0u002Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0wag_NotesToFinancialStatementsAbstractwagfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseNotes to Financial Statements [Abstract]3false0us-gaap_PostemploymentBenefitsDisclosureTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">(8) The Company provides certain health insurance benefits for retired employees who meet eligibility requirements, including age, years of service and date of hire.  The costs of these benefits are accrued over the service life of the employee. The Company's postretirement health benefit plan is not funded.</div><div style="DISPLAY: block; TEXT-INDENT: 0pt"> </div><div align="left"><table style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman" cellspacing="0" cellpadding="0" width="90%"><tr><td style="PADDING-BOTTOM: 1px" valign="bottom" width="52%">  </td><td style="PADDING-BOTTOM: 1px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid" valign="bottom" width="22%" colspan="6"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">Three Months Ended February 28,</div></td><td style="PADDING-BOTTOM: 1px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 1px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid" valign="bottom" width="22%" colspan="6"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">Six Months Ended February 28,</div></td><td style="PADDING-BOTTOM: 1px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr><td style="PADDING-BOTTOM: 1px" valign="bottom" align="left" width="52%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Components of Net Periodic Benefit Costs (In millions):</div></td><td style="PADDING-BOTTOM: 1px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid" valign="bottom" width="10%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">2011</div></td><td style="PADDING-BOTTOM: 1px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 1px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid" valign="bottom" width="10%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">2010</div></td><td style="PADDING-BOTTOM: 1px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 1px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid" valign="bottom" width="10%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">2011</div></td><td style="PADDING-BOTTOM: 1px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 1px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid" valign="bottom" width="10%" colspan="2"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center">2010</div></td><td style="PADDING-BOTTOM: 1px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr bgcolor="#cceeff"><td valign="bottom" align="left" width="52%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Service cost</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">4</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">3</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">7</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">6</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr bgcolor="white"><td valign="bottom" align="left" width="52%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Interest cost</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">5</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">5</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">11</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">10</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr bgcolor="#cceeff"><td valign="bottom" align="left" width="52%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Amortization of actuarial loss</div></td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">4</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">2</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">7</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="TEXT-ALIGN: right" valign="bottom" width="9%">4</td><td style="TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr><tr bgcolor="white"><td style="PADDING-BOTTOM: 1px" valign="bottom" align="left" width="52%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Amortization of prior service cost</div></td><td style="PADDING-BOTTOM: 1px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right" valign="bottom" width="9%">(3</td><td style="PADDING-BOTTOM: 1px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%">)</td><td style="PADDING-BOTTOM: 1px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right" valign="bottom" width="9%">(3</td><td style="PADDING-BOTTOM: 1px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%">)</td><td style="PADDING-BOTTOM: 1px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right" valign="bottom" width="9%">(5</td><td style="PADDING-BOTTOM: 1px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%">)</td><td style="PADDING-BOTTOM: 1px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: left" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 1px solid; TEXT-ALIGN: right" valign="bottom" width="9%">(6</td><td style="PADDING-BOTTOM: 1px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%">)</td></tr><tr bgcolor="#cceeff"><td style="PADDING-BOTTOM: 3px" valign="bottom" align="left" width="52%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">Total postretirement benefit cost</div></td><td style="PADDING-BOTTOM: 3px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 3px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 3px double; TEXT-ALIGN: right" valign="bottom" width="9%">10</td><td style="PADDING-BOTTOM: 3px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 3px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 3px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 3px double; TEXT-ALIGN: right" valign="bottom" width="9%">7</td><td style="PADDING-BOTTOM: 3px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 3px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 3px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 3px double; TEXT-ALIGN: right" valign="bottom" width="9%">20</td><td style="PADDING-BOTTOM: 3px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td><td style="PADDING-BOTTOM: 3px" valign="bottom" width="1%"> </td><td style="BORDER-BOTTOM: black 3px double; TEXT-ALIGN: left" valign="bottom" width="1%">$</td><td style="BORDER-BOTTOM: black 3px double; TEXT-ALIGN: right" valign="bottom" width="9%">14</td><td style="PADDING-BOTTOM: 3px; TEXT-ALIGN: left" valign="bottom" nowrap="nowrap" width="1%"> </td></tr></table></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">  </div>(8) The Company provides certain health insurance benefits for retired employees who meet eligibility requirements, including age, years of service and date offalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescription containing the entire postemployment benefits disclosure which may include supplemental unemployment benefits, obligations recognized for all types of benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement. Disclosure may also include discussion that an obligation for postemployment benefits is not accrued in accordance with regulation only because the amount cannot be reasonably estimated.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 112 falsefalsePost Employment Benefits12Post Employment BenefitsUnKnownUnKnownUnKnownUnKnownfalsetrue