Employee Benefit Plans (Narrative) (Detail) - Pension Plan - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, contributions by employer	$ 1	$ 1	$ 1	$ 1
Defined benefit plan, expected contributions in 2025	$ 3		$ 3