Income Taxes (Tax Carryforwards) (Details) $ in Millions	Dec. 31, 2024 USD ($)
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	$ 800
Tax Loss Carryforwards	5,542
Expiration Period Current To Five Years [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	56
Tax Loss Carryforwards	327
Expiration Period Six To Ten Years [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	37
Tax Loss Carryforwards	137
Expiration Period Eleven To Twenty Years [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	201
Tax Loss Carryforwards	1,255
Expiration Period Indefinite [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforwards	506
Tax Loss Carryforwards	$ 3,823

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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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