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Income Taxes - Operating Loss Carryforwards, General Business Credit Carryforwards, and Tax Credit Carryforwards (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Foreign tax credit carryforwards |  |
Net operating loss carryforwards: |  |
Foreign tax credit carryforwards | $ 43 | $ 16
Federal |  |
Net operating loss carryforwards: |  |
Net operating loss carryforwards | 28 | 86
State |  |
Net operating loss carryforwards: |  |
Net operating loss carryforwards | 2,829 | 3,074
Foreign |  |
Net operating loss carryforwards: |  |
Net operating loss carryforwards | 1,597 | $ 1,880
Tax Year 2025 Through 2044 | Foreign |  |
Net operating loss carryforwards: |  |
Net operating loss carryforwards | $ 65 |

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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
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