v3.25.4

Pension and Other Benefit Programs - Fair Value Of Plan Assets (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | $ 689 | $ 709
Funded status | 69 | 55
Post-retirement Benefit Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Funded status | (115) | (116)
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 116 | 161
Significant Observable Inputs (Level 2) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 567 | 542
Significant Unobservable Inputs (Level 3) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 6 | 6
Cash |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 7 | 8
Cash | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 7 | 8
Cash | Significant Observable Inputs (Level 2) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 0 | 0
Cash | Significant Unobservable Inputs (Level 3) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 0 | 0
U.S. large-cap |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 19 | 20
U.S. large-cap | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 0 | 0
U.S. large-cap | Significant Observable Inputs (Level 2) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 19 | 20
U.S. large-cap | Significant Unobservable Inputs (Level 3) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 0 | 0
U.S. small-cap |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 5 | 5
U.S. small-cap | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 0 | 0
U.S. small-cap | Significant Observable Inputs (Level 2) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 5 | 5
U.S. small-cap | Significant Unobservable Inputs (Level 3) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 0 | 0
International |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 10 | 10
International | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 0 | 0
International | Significant Observable Inputs (Level 2) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 10 | 10
International | Significant Unobservable Inputs (Level 3) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 0 | 0
Fixed income securities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 648 | 666
Fixed income securities | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 109 | 153
Fixed income securities | Significant Observable Inputs (Level 2) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | 533 | 507
Fixed income securities | Significant Unobservable Inputs (Level 3) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair Value Measurements | $ 6 | $ 6

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