v3.25.4

Employee Benefit Plans - Plan's Assets Carried at Fair Value (Detail) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Total fair value measurements | $ 163 | $ 173
Bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total fair value measurements | 74 | 90
Other Contract [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total fair value measurements | 89 | 83
Fair Value, Inputs, Level 2 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total fair value measurements | 79 | 110
Fair Value, Inputs, Level 2 [Member] | Bonds [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total fair value measurements | 74 | 90
Fair Value, Inputs, Level 2 [Member] | Other Contract [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total fair value measurements | 5 | 20
Fair Value, Inputs, Level 3 [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total fair value measurements | 84 | 63
Fair Value, Inputs, Level 3 [Member] | Other Contract [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Total fair value measurements | $ 84 | $ 63

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