2.2.0.25falsefalse41803 - Disclosure - Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details)truefalseIn Millionsfalse1falsefalseUSDfalsefalse1/31/2010 - 1/29/2011 USD ($) USD ($) / shares $Duration_1_31_2010_To_1_29_2011http://www.sec.gov/CIK0001166126duration2010-01-31T00:00:002011-01-29T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2falsefalseUSDfalsefalse2/1/2009 - 1/30/2010 USD ($) USD ($) / shares $Duration_2_1_2009_To_1_30_2010http://www.sec.gov/CIK0001166126duration2009-02-01T00:00:002010-01-30T00:00:00Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$3falsefalseUSDfalsefalse2/3/2008 - 1/31/2009 USD ($) USD ($) / shares $Duration_2_3_2008_To_1_31_2009http://www.sec.gov/CIK0001166126duration2008-02-03T00:00:002009-01-31T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$5false0us-gaap_UnrecognizedTaxBenefitsus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsetruefalsefalseperiodstartlabel1truefalsefalse165000000165falsetruefalsefalsefalse2truefalsefalse192000000192falsetruefalsefalsefalse3truefalsefalse160000000160falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe gross amount of unrecognized tax benefits (tax reductions recognized in financial reports but excluded from tax returns) pertaining to uncertain tax positions taken in tax returns as of the beginning balance sheet date, excluding amounts pertaining to examined tax returns.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph a falsefalseBeginning balance6false0us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositionsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3truefalsefalse3200000032falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph a(2) falsefalseAdditions for tax positions related to the current year7false0us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositionsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse2100000021falsefalsefalsefalsefalse2truefalsefalse3700000037falsefalsefalsefalsefalse3truefalsefalse1100000011falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph a(1) falsefalseAdditions for tax positions of prior years8false0us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositionsus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-5000000-5falsefalsefalsefalsefalse2truefalsefalse-1000000-1falsefalsefalsefalsefalse3truefalsefalse-5000000-5falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph a(1) falsefalseReductions for tax positions of prior years9false0us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthoritiesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-16000000-16falsefalsefalsefalsefalse2truefalsefalse-59000000-59falsefalsefalsefalsefalse3truefalsefalse-6000000-6falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe gross amount of decreases in unrecognized tax benefits resulting from settlements with taxing authorities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph a(3) falsefalseSettlements and effective settlements with tax authorities10false0us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitationsus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-3000000-3falsefalsefalsefalsefalse2truefalsefalse-4000000-4falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph a(4) falsefalseExpirations of statute11false0us-gaap_UnrecognizedTaxBenefitsus-gaaptruecreditinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsetruefalseperiodendlabel1truefalsefalse162000000162falsetruefalsefalsefalse2truefalsefalse165000000165falsetruefalsefalsefalse3truefalsefalse192000000192falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe gross amount of unrecognized tax benefits (tax reductions recognized in financial reports but excluded from tax returns) pertaining to uncertain tax positions taken in tax returns as of the beginning balance sheet date, excluding amounts pertaining to examined tax returns.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 48 -Paragraph 21 -Subparagraph a falsefalseBalance at end of year37Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details) (USD $)MillionsUnKnownUnKnownUnKnownfalsetrue