Income Taxes - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | |||
|---|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Schedule Of Income Tax [Line Items] | ||||
| Income tax expense | $ 5 | $ 4 | $ 3 | |
| Income tax reconciliation change in deferred tax assets valuation allowance | 49 | 22 | ||
| Unrecognized tax benefits | 115 | 95 | $ 90 | $ 75 |
| Research and Development | ||||
| Schedule Of Income Tax [Line Items] | ||||
| Net operating loss carryforwards | 205 | 166 | ||
| Federal | ||||
| Schedule Of Income Tax [Line Items] | ||||
| Net operating loss carryforwards | 1,300 | 1,400 | ||
| State | ||||
| Schedule Of Income Tax [Line Items] | ||||
| Net operating loss carryforwards | $ 66 | $ 56 | ||
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Schedule Of Income Tax [Line Items] No definition available.
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