2.2.0.25falsefalse4066 - Disclosure - Cat Financial Financing Activities (Details 7)truefalseIn Millions, unless otherwise specifiedfalse1falsefalseUSDfalsefalse1/1/2009 - 12/31/2009
USD ($)
USD ($) / shares
$D2009http://www.sec.gov/CIK0000018230duration2009-01-01T00:00:002009-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2falsefalseUSDfalsefalse1/1/2008 - 12/31/2008
USD ($)
USD ($) / shares
$D2008http://www.sec.gov/CIK0000018230duration2008-01-01T00:00:002008-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170PureStandardhttp://www.xbrl.org/2003/instancepurexbrli0SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDPerShareDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0cat_FinancialFinancingActivitiesDisclosureAbstractcatfalsenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalse3false0cat_ServicingFeePercentageOfRemainingReceivablescatfalsenadurationThis element represents the percentage servicing fee received by the transferor for servicing responsibilities retained.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truetruefalse0.0050.005falsefalsefalsefalsefalse2truetruefalse0.0050.005falsefalsefalsefalsefalseOtherus-types:percentItemTypepureThis element represents the percentage servicing fee received by the transferor for servicing responsibilities retained.No authoritative reference available.falsefalse4false0cat_SecuritizationFinancialAssetForWhichTransferIsAccountedAsSaleExpensesOnSalecatfalsedebitdurationThis element represents the expenses on transfer of financial asset for securitization or asset backed financing arrangement.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse40000004falsetruefalsefalsefalse2truefalsefalse1000000010falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents the expenses on transfer of financial asset for securitization or asset backed financing arrangement.No authoritative reference available.falsefalse5false0cat_OutstandingPrincipalBalanceOfSoldTradeReceivablescatfalsedebitinstantRepresents the outstanding principal balance of sold trade receivables as of the balance sheet date.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse240000000240falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryRepresents the outstanding principal balance of sold trade receivables as of the balance sheet date.No authoritative reference available.falsefalse6false0cat_AccountsReceivableSoldRemainingInterestInPoolOfReceivablescatfalsedebitinstantThis element represents interests that continue to be held by the transferor related to an asset-backed financing arrangement...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2truefalsefalse14320000001432falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents interests that continue to be held by the transferor related to an asset-backed financing arrangement or similar transfer accounted for as a sale when the transferor has continuing involvement with the transferred financial assets.No authoritative reference available.falsefalse7true0us-gaap_ProceedsFromSaleAndCollectionOfReceivablesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalse8false0cat_CashFlowsBetweenTransfereeAndTransferorTradeReceivablesProceedsCollectionsReinvestedcatfalsedebitdurationCash proceeds from collections reinvested in revolving-period transfers related to an asset-backed financing arrangement or...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse887000000887falsefalsefalsefalsefalse2truefalsefalse15100000001510falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryCash proceeds from collections reinvested in revolving-period transfers related to an asset-backed financing arrangement or similar transfer accounted for as a sale when the transferor has continuing involvement with the transferred financial assets.No authoritative reference available.falsefalse9false0cat_ServicingFeesReceivedOnTradeReceivablesSoldcatfalsedebitdurationThis element represents the servicing fees received from the transferee for the servicing responsibilities retained.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse10000001falsefalsefalsefalsefalse2truefalsefalse10000001falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis element represents the servicing fees received from the transferee for the servicing responsibilities retained.No authoritative reference available.falsefalse10false0cat_CashFlowsBetweenTransfereeAndTransferorTradeReceivablesCashFlowsOnRetainedInterestcatfalsedebitdurationCash flows on the interests that continue to be held by the transferor related to an asset-backed financing arrangement or...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse75480000007548falsetruefalsefalsefalse2truefalsefalse1127000000011270falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryCash flows on the interests that continue to be held by the transferor related to an asset-backed financing arrangement or similar transfer accounted for as a sale when the transferor has continuing involvement with the transferred financial assets.No authoritative reference available.falsefalse29Cat Financial Financing Activities (Details 7) (USD $)MillionsUnKnownUnKnownUnKnowntruetrue
