2.2.0.25falsefalse40601 - Disclosure - Note 6. Accrued Liabilities (Details)truefalseIn Millionsfalse1falsefalseUSDfalsefalse1/31/2011
USD ($)
USD ($) / shares
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USD ($)
USD ($) / shares
$As_Of_1_31_2010http://www.sec.gov/CIK0000104169instant2010-01-31T00:00:000001-01-01T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit16Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit15Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2true0us-gaap_AccruedLiabilitiesCurrentAndNoncurrentAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalse3false0us-gaap_EmployeeRelatedLiabilitiesCurrentus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse58950000005895[1]falsetruefalsefalsefalse2truefalsefalse59860000005986[1]falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20
-Article 5
falsefalse4false0us-gaap_AccruedInsuranceCurrentus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse34470000003447[2]falsefalsefalsefalsefalse2truefalsefalse32240000003224[2]falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryCarrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20
-Article 5
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 3
-Section A
-Paragraph 7, 8
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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 3
-Section A
-Paragraph 7
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20
-Article 5
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20
-Article 5
truefalse1Accrued wages and benefits include accrued wages, salaries, vacation, bonuses and other incentive plans. 2Self-insurance consists of all insurance-related liabilities, such as workers' compensation, general liability, vehicle liability, property and employee related health care benefits. 3Other accrued liabilities consists of various items such as accrued taxes, maintenance, utilities, advertising, interest, and severance liabilities. 4As Adjusted25Note 6. Accrued Liabilities (Details) (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue
