Pension and Other Postretirement Benefits - Schedule of Pension Plans with ABO and PBO in Excess of the Fair Value of Plan Assets (Details) - Retirement Benefit Plans - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 119	$ 144
Accumulated benefit obligation	119	144
Fair value of plan assets	$ 101	$ 113

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details