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Pension and Other Postretirement Benefits (Additional Information) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2025 USD ($)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 36
Other Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Benefits paid	4
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Benefits paid	$ 26

X

- Definition

Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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