Schedule of Disaggregated Revenue by Products and Region (Detail) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation Of Revenue [Line Items]
Net sales		$ 2,714	$ 2,605	$ 5,292	$ 5,220
Airbags Steering Wheels and Other [Member]
Disaggregation Of Revenue [Line Items]
Net sales	[1]	1,812	1,747	3,565	3,528
Seatbelt Products and Other [Member]
Disaggregation Of Revenue [Line Items]
Net sales	[1]	902	858	1,727	1,692
Americas [Member]
Disaggregation Of Revenue [Line Items]
Net sales		891	893	1,742	1,786
Europe [Member]
Disaggregation Of Revenue [Line Items]
Net sales		828	761	1,592	1,531
China
Disaggregation Of Revenue [Line Items]
Net sales		477	468	924	928
Asia, excl. China [Member]
Disaggregation Of Revenue [Line Items]
Net sales		$ 519	$ 483	$ 1,034	$ 975

[1] Including Corporate sales.