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Employee Retirement Benefits - Schedule of Net Periodic Costs (Details) - Pension - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 7	$ 7	$ 5
Expected return on plan assets	(6)	(3)	(6)
Net amortization of actuarial net loss	1	1	0
Settlement loss	1	0	2
Net periodic pension cost (benefit)	$ 3	$ 5	$ 1
Weighted‑Average Assumptions Used to Determine Net Periodic Pension Cost (Benefit)
Discount rate	5.10%	5.40%	2.70%
Expected return on assets	6.30%	6.00%	4.60%
Average rate of increase in compensation	0.00%	0.00%	0.00%
Interest credit rate	3.80%	3.80%	3.80%

X

- Definition

Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

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- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan.

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Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

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Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

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Weighted-average interest crediting rate used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, cash balance and other defined benefit plans with promised interest crediting rate.

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Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

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Amount of cost recognized for passage of time related to defined benefit plan.

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Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.

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