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Income Taxes - Narrative (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
May 31, 2024 | Dec. 31, 2020 | Dec. 31, 2023 | Dec. 31, 2019 | Dec. 31, 2024
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Valuation allowance |  |  | $ 2,900 |  |
Federal net operating loss carryforwards |  |  | 5,300 |  | $ 1,800
Federal research and development tax credit carryforwards |  |  | 720 |  | 554
Alternative minimum tax credit carryforwards |  |  |  |  | 311
State net operating loss carryforwards |  |  | 4,600 |  | 3,800
State research and development and enterprise zone tax credit carryforwards |  |  | 464 |  | 501
Unrecognized tax benefits that would impact effective tax rate |  |  |  |  | 740
Unrecognized tax benefits, income tax penalties and interest accrued |  |  | $ 90 |  | 100
Tax adjustments, settlements, and unusual provisions |  |  |  | $ 196 |
Inflation reduction act, liability |  |  |  |  | $ 95
Internal Revenue Service (IRS) |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Income tax examination, additional income tax expense and cash liability | $ 1,300 | $ 1,300 |  |  |
Income tax examination, amount of estimate of possible loss which exceeds reserves |  | $ 1,000 |  |  |

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- Definition Deferred Tax Assets, State Tax Credit Carryforwards, Research And Development And Enterprise Zone Tax Credits + References No definition available. + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-6 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-6 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-6 + Details
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