Pension and Other Postretirement Benefits (Additional Information) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 0
Other Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Benefits paid	3
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Benefits paid	$ 13