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Valuation and Qualifying Accounts and Reserves (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of period | $ 1,037 us-gaap_ValuationAllowancesAndReservesBalance | $ 1,243 us-gaap_ValuationAllowancesAndReservesBalance | $ 1,397 us-gaap_ValuationAllowancesAndReservesBalance
Amounts charged or credited to income | (225)dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome | (127)dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome | (107)dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome
Allowance utilized | (23)us-gaap_ValuationAllowancesAndReservesDeductions | (28)us-gaap_ValuationAllowancesAndReservesDeductions | (92)us-gaap_ValuationAllowancesAndReservesDeductions
Adjustments arising from change in currency exchange rates and other items | (7)us-gaap_ValuationAllowancesAndReservesAdjustments | (51)us-gaap_ValuationAllowancesAndReservesAdjustments | 45 us-gaap_ValuationAllowancesAndReservesAdjustments
Balance at end of period | 782 us-gaap_ValuationAllowancesAndReservesBalance | 1,037 us-gaap_ValuationAllowancesAndReservesBalance | 1,243 us-gaap_ValuationAllowancesAndReservesBalance
Allowance for doubtful receivables [Member] |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of period | 7 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember | 8 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember | 8 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember
Amounts charged or credited to income | 1 dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember | 0 dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember | 1 dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember
Allowance utilized | (1)us-gaap_ValuationAllowancesAndReservesDeductions / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember | (1)us-gaap_ValuationAllowancesAndReservesDeductions / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember | (1)us-gaap_ValuationAllowancesAndReservesDeductions / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember
Adjustments arising from change in currency exchange rates and other items | (1)us-gaap_ValuationAllowancesAndReservesAdjustments / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember | 0 us-gaap_ValuationAllowancesAndReservesAdjustments / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember | 0 us-gaap_ValuationAllowancesAndReservesAdjustments / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember
Balance at end of period | 6 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember | 7 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember | 8 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_AllowanceForDoubtfulAccountsMember
Inventory reserves [Member] |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of period | 48 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember | 51 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember | 55 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember
Amounts charged or credited to income | 20 dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember | 16 dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember | 6 dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember
Allowance utilized | (15)us-gaap_ValuationAllowancesAndReservesDeductions / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember | (19)us-gaap_ValuationAllowancesAndReservesDeductions / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember | (12)us-gaap_ValuationAllowancesAndReservesDeductions / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember
Adjustments arising from change in currency exchange rates and other items | (5)us-gaap_ValuationAllowancesAndReservesAdjustments / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember | 0 us-gaap_ValuationAllowancesAndReservesAdjustments / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember | 2 us-gaap_ValuationAllowancesAndReservesAdjustments / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember
Balance at end of period | 48 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember | 48 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember | 51 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_InventoryValuationReserveMember
Valuation allowance for deferred tax assets [Member] |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at beginning of period | 982 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember | 1,184 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember | 1,334 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember
Amounts charged or credited to income | (246)dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember | (143)dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember | (114)dan_ValuationAllowancesAndReservesChargedOrCreditedToIncome / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember
Allowance utilized | (7)us-gaap_ValuationAllowancesAndReservesDeductions / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember | (8)us-gaap_ValuationAllowancesAndReservesDeductions / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember | (79)us-gaap_ValuationAllowancesAndReservesDeductions / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember
Adjustments arising from change in currency exchange rates and other items | (1)us-gaap_ValuationAllowancesAndReservesAdjustments / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember | (51)us-gaap_ValuationAllowancesAndReservesAdjustments / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember | 43 us-gaap_ValuationAllowancesAndReservesAdjustments / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember
Balance at end of period | $ 728 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember | $ 982 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember | $ 1,184 us-gaap_ValuationAllowancesAndReservesBalance / us-gaap_ValuationAllowancesAndReservesTypeAxis = us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember

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- Definition Valuation Allowances And Reserves Charged Or Credited To Income + References No definition available. + Details
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- Definition Total of the adjustments in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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