Employee Benefit Plans (Narrative) (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Apr. 30, 2024	Mar. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, contributions by employer		$ 0
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, expected contributions in 2024		$ 8
Pension Plan | Subsequent Event
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, contributions by employer	$ 1