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Shareholders' Equity Shareholders Equity Components of Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax | $ (16,605)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax | $ 248,425 us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax | $ 182,632 us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
Accumulated Other Comprehensive Income (Loss), Net of Tax | (64,617)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax | 225,552 us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax | 145,137 us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | (265,030)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax | 65,793 us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax | 23,889 us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax | (12,925)us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax | 1,027 us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax | 3,679 us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax | 403 us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax | 2,075 us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax | (4,805)us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax | (12,617)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax | 11,520 us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax | (6,976)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax
Other comprehensive income | (290,169)us-gaap_OtherComprehensiveIncomeLossNetOfTax | 80,415 us-gaap_OtherComprehensiveIncomeLossNetOfTax | 15,787 us-gaap_OtherComprehensiveIncomeLossNetOfTax
Unrealized gain loss on investment securities [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax | 7,719 us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_UnrealizedgainlossoninvestmentsecuritiesMember | 20,644 us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_UnrealizedgainlossoninvestmentsecuritiesMember | 19,617 us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_UnrealizedgainlossoninvestmentsecuritiesMember
Unrealized gain loss on interest rate swaps designated as cash flow hedges, net [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax | (4,191)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_UnrealizedgainlossoninterestrateswapsdesignatedascashflowhedgesnetMember | (4,594)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_UnrealizedgainlossoninterestrateswapsdesignatedascashflowhedgesnetMember | (6,669)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_UnrealizedgainlossoninterestrateswapsdesignatedascashflowhedgesnetMember
Employee benefit plan items [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax | (51,540)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_EmployeebenefitplanitemsMember | (38,923)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_EmployeebenefitplanitemsMember | (50,443)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_EmployeebenefitplanitemsMember
Other comprehensive income before reclassifications [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | (265,432)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember | 66,232 us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember |
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax | 5,344 us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember | 1,027 us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember |
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax | 0 us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember | 1,923 us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember |
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax | (14,630)us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember | 8,647 us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember |
Other comprehensive income | (274,718)us-gaap_OtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember | 77,829 us-gaap_OtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember |
Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | 402 us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember | (439)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax | (18,269)us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember | 0 us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax | 403 us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember | 152 us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax | 2,013 us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember | 2,873 us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
Other comprehensive income | (15,451)us-gaap_OtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember | 2,586 us-gaap_OtherComprehensiveIncomeLossNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
Intra-entity foreign currency transactions [Member] | Other comprehensive income before reclassifications [Member] |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | $ 57,109 us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember / arw_ComponentofForeignCurrencyTranslationAdjustmentAxis = arw_IntraentityforeigncurrencytransactionsMember | $ (17,557)us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax / arw_ComponentofAccumulatedOtherComprehensiveIncomeAxis = arw_OthercomprehensiveincomebeforereclassificationsMember / arw_ComponentofForeignCurrencyTranslationAdjustmentAxis = arw_IntraentityforeigncurrencytransactionsMember |

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- Definition Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e681-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669646-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32022-110900 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 + Details
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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e681-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 + Details
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