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Employee Benefit and Retirement Plans - Summary of Reconciliation of Change in Fair Value Measurement of Defined Benefit Plans' Consolidated Assets Using Significant Unobservable Inputs (Level 3) (Details) - Level 3 $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)
Change in plan assets:
Fair value of plan assets at beginning of year	$ 194
Purchases, sales, settlements and other, net	(184)
Fair value of plan assets at end of year	$ 10

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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