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Relationship with Former Parent and Related Entities - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jun. 29, 2018	Dec. 31, 2015
Related Party Transaction [Line Items]
Related party purchases		$ 22,000,000	$ 25,000,000	$ 29,000,000
True up adjustment to related party payable in connection with the Spin-Off	$ 3,000,000
Deferred tax	$ 8,000,000
Cash and cash equivalents		864,000,000	0	0	$ 1,000,000,000	$ 0
Affiliated Entity \| Autoliv Nissin Brakes Systems
Related Party Transaction [Line Items]
Expenses, related party		7,000,000	0	0
Affiliated Entity \| Autoliv
Related Party Transaction [Line Items]
Revenue from related parties		121,000,000	148,000,000	120,000,000
Affiliated Entity \| Autoliv \| Engineering Services
Related Party Transaction [Line Items]
Revenue from related parties		1,000,000	1,000,000	$ 1,000,000
Veoneer Nissin Brakes Systems
Related Party Transaction [Line Items]
Capital lease arrangement		$ 13,000,000	$ 11,000,000
Veoneer Nissin Brakes Systems
Related Party Transaction [Line Items]
Majority ownership percentage		51.00%
Nissin Kogyo
Related Party Transaction [Line Items]
Minority ownership percentage		49.00%