Basis of Presentation	12 Months Ended
Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation On June 29, 2018 (the “Distribution Date”), Veoneer, Inc. (“Veoneer” or “the Company”) became an independent, publicly-traded company as a result of the distribution by Autoliv, Inc. (“Autoliv” or “Former Parent”) of 100 percent of the outstanding common stock of Veoneer to the stockholders of Autoliv (the “Spin-Off”). Each Autoliv stockholder and holder of Autoliv’s Swedish Depository Receipts (SDRs) of record as of certain specified dates received one share of Veoneer common stock or one Veoneer SDR, respectively, for every one share of Autoliv common stock or Autoliv SDR held as of a certain date. The Spin-Off was completed on June 29, 2018 in a tax free transaction pursuant to Section 355 of the U.S. Internal Revenue Code. On July 2, 2018, Veoneer common stock began regular trading on the New York Stock Exchange (“NYSE”) under the ticker symbol “VNE” and Veoneer SDRs began trading on National Association of Securities Dealers (“NASDAQ”) Stockholm under the symbol “VNE-SDB”. Agreements entered into between Veoneer and Autoliv in connection with the Spin-Off govern the relationship between the parties following the Spin-Off and provide for the allocation of various assets, liabilities, rights and obligations. These agreements also include arrangements for transition services to be provided on a temporary basis between the parties. In advance of the Spin-Off, Autoliv completed a series of internal transactions, in which Autoliv transferred its Electronics business to Veoneer. These transactions are referred to herein as the “internal reorganization”. The internal reorganization was completed on April 1, 2018. The Company has two operating segments, Electronics and Brake Systems. Electronics includes all electronics resources and expertise, Restraint Control Systems and Active Safety products, and Brake Systems provides brake control and actuation systems. The accompanying consolidated financial statements as of and for the years ended December 31, 2017 and 2016 and from January 1, 2018 through the Distribution Date were prepared from Autoliv’s historical accounting records and are presented on a stand-alone basis as if the operations had been conducted independently from Autoliv. For the period from the Distribution Date through December 31, 2018, the consolidated financial statements reflect Veoneer’s stand-alone operations. Prior to the Spin-Off, Autoliv’s net investment in these operations (Former Parent equity) is shown in lieu of a controlling interest’s equity in the Consolidated Financial Statements. Subsequent to the Spin-Off, Veoneer common stock, Additional paid-in capital and future income (losses) are reflected in Accumulated deficit. Accordingly, for periods prior to June 29, 2018, the Company’s financial statements are presented on a combined basis and for the periods subsequent to June 29, 2018, they are presented on a consolidated basis (all periods hereinafter are referred to as "Consolidated Financial Statements"). Prior to the Spin-Off, the Consolidated Statements of Operations include all sales and costs directly attributable to Veoneer, including costs for facilities, functions and services used by Veoneer. Certain shared costs have been directly charged to Veoneer based on usage or other allocation methods. The results of operations also include allocations of (i) costs for administrative functions and services performed on behalf of Veoneer by centralized staff groups within Autoliv, (ii) Autoliv’s general corporate expenses and (iii) certain pension and other retirement benefit costs (See Note 14, Retirement Plans for a description of the allocation methodologies employed). As more fully described in Note 6, Income Taxes, current and deferred income taxes and related tax expense have been determined based on the stand-alone results of Veoneer by applying Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) No. 740, Income Taxes, to the Veoneer operations in each country as if it were a separate taxpayer (i.e., following the separate return methodology). Subsequent to the Spin-Off, sales, costs and taxes are reflected for Veoneer’s operations on a stand-alone company basis. Prior to the Spin-Off, Veoneer participated in Autoliv's centralized cash management and financing programs. Accordingly, no cash and cash equivalents of Autoliv was allocated to Veoneer in the consolidated financial statements. Transactions between Autoliv and Veoneer are accounted for through Net Former Parent Investment. Autoliv’s short-term and long-term debt, including any related interest expense as well as its derivative activity, was pushed down to Veoneer’s consolidated financial statements where it is specifically identifiable to Veoneer. See Note 19, Relationship with Former Parent and Related Entities, for a further description of related party transactions between Autoliv and Veoneer. Subsequent to the Spin-Off, Veoneer has its own treasury functions. For periods prior to the Spin-Off, all charges and allocations of cost for facilities, functions and services performed by Autoliv organizations have been deemed paid by Veoneer to Autoliv, in cash, in the period in which the cost was recorded in the Consolidated Statements of Operations. The consolidated financial statements include the historical operations, assets, and liabilities that are considered to comprise the Veoneer business. All of the allocations and estimates in the consolidated financial statements are based on assumptions that Veoneer management believe are reasonable. However, the historical statements of operations, comprehensive loss, balance sheets, and cash flows of Veoneer included herein may not be indicative of what they would have been had Veoneer actually been a stand-alone entity during such periods, nor are they necessarily indicative of Veoneer's future results. Certain amounts in the prior year’s consolidated financial statements and related footnotes thereto have been reclassified to conform to the current year presentation. Certain amounts in the consolidated financial statements and associated notes may not reconcile due to rounding. All percentages have been calculated using unrounded amounts.

Basis of Presentation

On June 29, 2018 (the “Distribution Date”), Veoneer, Inc. (“Veoneer” or “the Company”) became an independent, publicly-traded company as a result of the distribution by Autoliv, Inc. (“Autoliv” or “Former Parent”) of 100 percent of the outstanding common stock of Veoneer to the stockholders of Autoliv (the “Spin-Off”). Each Autoliv stockholder and holder of Autoliv’s Swedish Depository Receipts (SDRs) of record as of certain specified dates received one share of Veoneer common stock or one Veoneer SDR, respectively, for every one share of Autoliv common stock or Autoliv SDR held as of a certain date. The Spin-Off was completed on June 29, 2018 in a tax free transaction pursuant to Section 355 of the U.S. Internal Revenue Code.

On July 2, 2018, Veoneer common stock began regular trading on the New York Stock Exchange (“NYSE”) under the ticker symbol “VNE” and Veoneer SDRs began trading on National Association of Securities Dealers (“NASDAQ”) Stockholm under the symbol “VNE-SDB”. Agreements entered into between Veoneer and Autoliv in connection with the Spin-Off govern the relationship between the parties following the Spin-Off and provide for the allocation of various assets, liabilities, rights and obligations. These agreements also include arrangements for transition services to be provided on a temporary basis between the parties.

In advance of the Spin-Off, Autoliv completed a series of internal transactions, in which Autoliv transferred its Electronics business to Veoneer. These transactions are referred to herein as the “internal reorganization”. The internal reorganization was completed on April 1, 2018.

The Company has two operating segments, Electronics and Brake Systems. Electronics includes all electronics resources and expertise, Restraint Control Systems and Active Safety products, and Brake Systems provides brake control and actuation systems.

The accompanying consolidated financial statements as of and for the years ended December 31, 2017 and 2016 and from January 1, 2018 through the Distribution Date were prepared from Autoliv’s historical accounting records and are presented on a stand-alone basis as if the operations had been conducted independently from Autoliv. For the period from the Distribution Date through December 31, 2018, the consolidated financial statements reflect Veoneer’s stand-alone operations. Prior to the Spin-Off, Autoliv’s net investment in these operations (Former Parent equity) is shown in lieu of a controlling interest’s equity in the Consolidated Financial Statements. Subsequent to the Spin-Off, Veoneer common stock, Additional paid-in capital and future income (losses) are reflected in Accumulated deficit. Accordingly, for periods prior to June 29, 2018, the Company’s financial statements are presented on a combined basis and for the periods subsequent to June 29, 2018, they are presented on a consolidated basis (all periods hereinafter are referred to as "Consolidated Financial Statements").

Prior to the Spin-Off, the Consolidated Statements of Operations include all sales and costs directly attributable to Veoneer, including costs for facilities, functions and services used by Veoneer. Certain shared costs have been directly charged to Veoneer based on usage or other allocation methods. The results of operations also include allocations of (i) costs for administrative functions and services performed on behalf of Veoneer by centralized staff groups within Autoliv, (ii) Autoliv’s general corporate expenses and (iii) certain pension and other retirement benefit costs (See Note 14, Retirement Plans for a description of the allocation methodologies employed). As more fully described in Note 6, Income Taxes, current and deferred income taxes and related tax expense have been determined based on the stand-alone results of Veoneer by applying Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) No. 740, Income Taxes, to the Veoneer operations in each country as if it were a separate taxpayer (i.e., following the separate return methodology). Subsequent to the Spin-Off, sales, costs and taxes are reflected for Veoneer’s operations on a stand-alone company basis.

Prior to the Spin-Off, Veoneer participated in Autoliv's centralized cash management and financing programs. Accordingly, no cash and cash equivalents of Autoliv was allocated to Veoneer in the consolidated financial statements. Transactions between Autoliv and Veoneer are accounted for through Net Former Parent Investment. Autoliv’s short-term and long-term debt, including any related interest expense as well as its derivative activity, was pushed down to Veoneer’s consolidated financial statements where it is specifically identifiable to Veoneer. See Note 19, Relationship with Former Parent and Related Entities, for a further description of related party transactions between Autoliv and Veoneer. Subsequent to the Spin-Off, Veoneer has its own treasury functions.

For periods prior to the Spin-Off, all charges and allocations of cost for facilities, functions and services performed by Autoliv organizations have been deemed paid by Veoneer to Autoliv, in cash, in the period in which the cost was recorded in the Consolidated Statements of Operations.

The consolidated financial statements include the historical operations, assets, and liabilities that are considered to comprise the Veoneer business. All of the allocations and estimates in the consolidated financial statements are based on assumptions that Veoneer management believe are reasonable. However, the historical statements of operations, comprehensive loss, balance sheets, and cash flows of Veoneer included herein may not be indicative of what they would have been had Veoneer actually been a stand-alone entity during such periods, nor are they necessarily indicative of Veoneer's future results.

Certain amounts in the prior year’s consolidated financial statements and related footnotes thereto have been reclassified to conform to the current year presentation.

Certain amounts in the consolidated financial statements and associated notes may not reconcile due to rounding. All percentages have been calculated using unrounded amounts.