Retirement Plans - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Apr. 01, 2018
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan net periodic benefit cost (less than)	$ 1			$ 1	$ 1
Defined contribution plan, cost			$ 2	1	1
Canada
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation			4	3	3
Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Pension expense			4	5	4
Benefit obligation			76	74	66
Net periodic benefit cost			4	5	$ 4
Accumulated benefit obligation			67	33
Company contributions			$ 4	6
Pension Plans, Defined Benefit | Japan
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on assets			0.75%
Pension Plans, Defined Benefit | Canada
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on assets			6.00%
Pension Plans, Defined Benefit | Transferred Veoneer Plans
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation						$ 6
Pension Plans, Defined Benefit | Veoneer Plans
Defined Benefit Plan Disclosure [Line Items]
Company contributions			$ 4	6
Expected future employer contributions, next fiscal year			3
Pension Plans, Defined Benefit | Autoliv Sponsored Plans | U.S.
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan expense and contributions			$ 1	1
Postretirement Benefits Other Than Pension | Canadian Medical Plan
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation				$ 1
Scenario, Forecast | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost		$ 6