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Income Taxes (Tax Carryforwards) (Details) $ in Millions | Dec. 31, 2023 USD ($)
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Tax Credit Carryforward [Line Items] |
Tax Credit Carryforwards | $ 891
Tax Loss Carryforwards | 4,601
Expiration Period Current To Five Years [Member] |
Tax Credit Carryforward [Line Items] |
Tax Credit Carryforwards | 56
Tax Loss Carryforwards | 317
Expiration Period Six To Ten Years [Member] |
Tax Credit Carryforward [Line Items] |
Tax Credit Carryforwards | 36
Tax Loss Carryforwards | 180
Expiration Period Eleven To Twenty Years [Member] |
Tax Credit Carryforward [Line Items] |
Tax Credit Carryforwards | 299
Tax Loss Carryforwards | 832
Expiration Period Indefinite [Member] |
Tax Credit Carryforward [Line Items] |
Tax Credit Carryforwards | 500
Tax Loss Carryforwards | $ 3,272

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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://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-3 + Details
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