Basis of Presentation - Additional Information (Details) - Spin-Off - Autoliv		6 Months Ended
	Jun. 29, 2018	Jun. 30, 2018
Basis Of Presentation [Line Items]
Distribution percentage of outstanding common stock in spinoff transaction	100.00%
Stock holders equity spin off description		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.
Spin-Off completion date	Jun. 29, 2018
SDR
Basis Of Presentation [Line Items]
Spin off conversion ratio	1
Common Stock
Basis Of Presentation [Line Items]
Spin off conversion ratio	1