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Basis of Presentation (Details)			12 Months Ended
Basis of Presentation (Details)	May 28, 2019 USD ($) $ / shares shares	Jun. 29, 2018	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 14, 2019
Restructuring Cost and Reserve [Line Items]
Number of operating segments \| segment			2
Sale of stock, issued in transaction (in shares) \| shares	24,000,000
Sale of stock (price per share) \| $ / shares	$ 17.50
Issuance of common stock	$ 403,000,000		$ 403,000,000	$ 0	$ 0
4% Convertible Senior Notes Due 2024 \| Convertible Notes Payable
Restructuring Cost and Reserve [Line Items]
Debt instrument, face amount	$ 207,000,000
Debt instrument, interest rate	4.00%
Proceeds from debt, net of issuance costs	$ 200,000,000
4% Convertible Senior Notes Due 2024 \| Convertible Notes Payable \| Over-Allotment Option
Restructuring Cost and Reserve [Line Items]
Debt instrument, face amount	$ 27,000,000
Veoneer Nissin Brakes Systems
Restructuring Cost and Reserve [Line Items]
Minority ownership percentage						49.00%
Autoliv \| Spin-Off
Restructuring Cost and Reserve [Line Items]
Distribution percentage of outstanding common stock		100.00%
Conversion ratio		1
Common Stock \| Autoliv \| Spin-Off
Restructuring Cost and Reserve [Line Items]
Conversion ratio		1
Swedish Depository Receipts \| Autoliv \| Spin-Off
Restructuring Cost and Reserve [Line Items]
Conversion ratio		1