2.2.0.25falsefalse105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)truefalseIn Millionsfalse1falsefalseUSDfalsefalse3/31/2011 USD ($) $eol_PE1341----1110-Q0005_STD_0_20110331_0http://www.sec.gov/CIK0000080424instant2011-03-31T00:00:000001-01-01T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170sharesStandardhttp://www.xbrl.org/2003/instanceshares0USDUSD$2falsefalseUSDfalsefalse6/30/2010 USD ($) $eol_PE1341----1110-Q0005_STD_0_20100630_0http://www.sec.gov/CIK0000080424instant2010-06-30T00:00:000001-01-01T00:00:00iso4217_USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170sharesStandardhttp://www.xbrl.org/2003/instanceshares0USDUSD$5false0us-gaap_CommonStockSharesIssuedus-gaaptruenainstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse40078000004007.8falsefalsefalsefalsefalse2truefalsefalse40076000004007.6falsefalsefalsefalsefalseSharesxbrli:sharesItemTypesharesTotal number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 falsefalse21CONSOLIDATED BALANCE SHEETS (Parenthetical)UnKnownHundredThousandsUnKnownUnKnownfalsetrue