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Income Tax (Net Operating Loss Carryforward) (Details) $ in Millions | Dec. 31, 2023 USD ($)
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Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards | $ 1,066
No Expiration And No Valuation Allowance [Member] |
Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards | 423
Full Valuation Allowance [Member] |
Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards | 126
No Expiration And Partial Valuation Allowance [Member] |
Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards | 505
Expiration Date Of 2034 And No Valuation Allowance |
Operating Loss Carryforwards [Line Items] |
Operating Loss Carryforwards | $ 12

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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://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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