Income Taxes (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Valuation Allowance	$ (3)	$ (2)
Share-based Payment Arrangement [Member]
Income Tax Disclosure [Abstract]
Operating Loss Carryforwards	237
Income Taxes (Jurisdictional components of deferred taxes)
Operating Loss Carryforwards	237
Domestic Tax Jurisdiction [Member]
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Valuation Allowance	(2)	(1)
Operating Loss Carryforwards	1,500
Income Taxes (Jurisdictional components of deferred taxes)
Operating Loss Carryforwards	1,500
Domestic Tax Jurisdiction [Member] \| Potentially expiring in 2025 [Abstract]
Income Tax Disclosure [Abstract]
Operating Loss Carryforwards	128
Income Taxes (Jurisdictional components of deferred taxes)
Operating Loss Carryforwards	128
State and Local Jurisdiction [Member]
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Valuation Allowance	0	0
Operating Loss Carryforwards	400
Income Taxes (Jurisdictional components of deferred taxes)
Operating Loss Carryforwards	400
State and Local Jurisdiction [Member] \| Potentially expiring in 2025 [Abstract]
Income Tax Disclosure [Abstract]
Operating Loss Carryforwards	52
Income Taxes (Jurisdictional components of deferred taxes)
Operating Loss Carryforwards	52
Foreign Tax Jurisdiction [Member]
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Valuation Allowance	(1)	$ (1)
Operating Loss Carryforwards	3
Income Taxes (Jurisdictional components of deferred taxes)
Operating Loss Carryforwards	$ 3

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

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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

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