Basis of Presentation	9 Months Ended
Sep. 30, 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 Unaudited Condensed Consolidated Financial Statements for all periods presented have been 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. 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 Unaudited Condensed Consolidated Financial Statements. Subsequent to the Spin-Off and the related distribution of shares, Veoneer Common stock, Additional paid-in capital and future income (losses) will be reflected in Retained earnings (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 "Condensed Consolidated Financial Statements"). The Unaudited Condensed 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 Unaudited Condensed Consolidated Financial Statements are based on assumptions that management of Autoliv and Veoneer 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 future results. The accompanying Unaudited Condensed Consolidated Financial Statements for Veoneer do not include all of the information and notes required by the accounting principles generally accepted in the U.S. (GAAP) for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) and disclosures considered necessary for a fair presentation have been included. For further information, refer to Veoneer’s Audited Combined Financial Statements for the year ended December 31, 2017 and corresponding notes in the Company’s Information Statement included in the current report on Form 8-K filed with the SEC on July 2, 2018. Certain amounts in the prior year’s Condensed Combined Financial Statements and related footnotes thereto have been reclassified to conform to the current year presentation. Certain amounts in the Unaudited Condensed 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 Unaudited Condensed Consolidated Financial Statements for all periods presented have been 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. 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 Unaudited Condensed Consolidated Financial Statements. Subsequent to the Spin-Off and the related distribution of shares, Veoneer Common stock, Additional paid-in capital and future income (losses) will be reflected in Retained earnings (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 "Condensed Consolidated Financial Statements").

The Unaudited Condensed 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 Unaudited Condensed Consolidated Financial Statements are based on assumptions that management of Autoliv and Veoneer 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 future results.

The accompanying Unaudited Condensed Consolidated Financial Statements for Veoneer do not include all of the information and notes required by the accounting principles generally accepted in the U.S. (GAAP) for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) and disclosures considered necessary for a fair presentation have been included. For further information, refer to Veoneer’s Audited Combined Financial Statements for the year ended December 31, 2017 and corresponding notes in the Company’s Information Statement included in the current report on Form 8-K filed with the SEC on July 2, 2018. Certain amounts in the prior year’s Condensed Combined Financial Statements and related footnotes thereto have been reclassified to conform to the current year presentation.

Certain amounts in the Unaudited Condensed Consolidated Financial Statements and associated notes may not reconcile due to rounding. All percentages have been calculated using unrounded amounts.