2.2.0.7 false Per Common Share Information 110 - Disclosure - Per Common Share Information true false false false 1 USD false false iso4217_USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 iso4217_USD_per_shares Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares 0 shares Standard http://www.xbrl.org/2003/instance shares 0 $ 5 3 us-gaap_EarningsPerShareTextBlock us-gaap true na duration No definition available. false false false false false false false false false false false false 1 false false false false 0 0 <div> <p style="MARGIN-TOP: 18px; MARGIN-BOTTOM: 0px"><font style="FONT-FAMILY: Times New Roman" size="2"><b>Per Common Share Information</b></font></p> <p style="MARGIN-TOP: 6px; TEXT-INDENT: 4%; MARGIN-BOTTOM: 0px"> <font style="FONT-FAMILY: Times New Roman" size="2">Diluted earnings per common share is calculated using net income divided by diluted weighted-average shares. Diluted weighted-average shares include weighted-average shares outstanding plus the dilutive effect of share-based compensation calculated using the treasury stock method, of 13.8&#xA0;million shares and 14.1&#xA0;million shares for the second quarter 2010 and 2009, respectively, and 14.0&#xA0;million shares and 14.8&#xA0;million shares for the six months ended June&#xA0;30, 2010 and 2009, respectively. Stock options that were not included in diluted weighted-average shares because they would have been antidilutive were 10.2&#xA0;million shares and 10.3&#xA0;million shares for the second quarter and six months ended June&#xA0;30, 2009, respectively.</font></p> <p style="MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px"><font size="1">&#xA0;</font></p> </div> Per Common Share Information Diluted earnings per common share is calculated using net income divided by diluted weighted-average shares. Diluted false false false us-types:textBlockItemType textblock This element may be used to capture the complete disclosure pertaining to an entity's earnings per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 false 1 1 false UnKnown UnKnown UnKnown false true