Employee Benefit Plans and Postretirement Benefits - Projected Benefit Obligations in Excess of Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 485	$ 724
Pension
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	645	908
Fair value of plan assets	485	724
Healthcare
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	175	187
Fair value of plan assets	48	60
Other
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	81	81
Fair value of plan assets	$ 0	$ 0

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