Schedule of Disaggregated Revenue by Products and Region (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2025	Mar. 31, 2024
Disaggregation Of Revenue [Line Items]
Net sales		$ 2,578	$ 2,615
Airbags Steering Wheels and Other [Member]
Disaggregation Of Revenue [Line Items]
Net sales	[1]	1,752	1,781
Seatbelt Products and Other [Member]
Disaggregation Of Revenue [Line Items]
Net sales	[1]	826	834
Americas [Member]
Disaggregation Of Revenue [Line Items]
Net sales		851	893
Europe [Member]
Disaggregation Of Revenue [Line Items]
Net sales		764	770
China
Disaggregation Of Revenue [Line Items]
Net sales		447	460
Asia, excl. China [Member]
Disaggregation Of Revenue [Line Items]
Net sales		$ 515	$ 491

[1] Including Corporate sales.