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v3.25.4

Provision for (Benefit from) Income Taxes - Narrative (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating loss carryforward | $ 578 |  |  |
Credit carryforwards | 425 | $ 458 |  |
Tax credit carryforwards | 1,000 |  |  |
Valuation allowance (decrease) increase | 21 | 24 | $ (1,030) |
Provision for (benefit from) income taxes | 513 | 313 | (723) |
Deferred tax assets, valuation allowance | 241 | 220 |  |
Total unrecognized tax benefit | 404 | 291 | 221 | $ 159
Unrecognized tax benefits that would impact effective tax rate | 304 |  |  |
Unrecognized tax benefits, income tax interest and penalties accrued | 17 | 9 |  |
Accrued income taxes | 114 | $ 68 |  |
CANADA |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Foreign | 161 |  |  |
UNITED KINGDOM |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Foreign | 162 |  |  |
Federal |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Credit carryforwards | 341 |  |  |
State |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Credit carryforwards | 354 |  |  |
Valuation allowance (decrease) increase |  |  | (1,050) |
Foreign Tax Jurisdiction | CANADA |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Credit carryforwards | $ 14 |  |  |
California Tax Authority |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Valuation allowance (decrease) increase |  |  | $ 20 |

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