New Accounting Standards - Additional Information (Detail) $ in Millions	Jan. 02, 2018 USD ($)
ASU 2018-02
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Tax Cuts and Jobs Act, Reclassification from AOCI to Retained earnings, Tax effect	$ 10

Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for reclassification to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act.

No definition available.

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Namespace Prefix:	alv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration