Income Taxes (Valuation Allowance) (Details) - SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances Balance	$ 1,439	$ 1,465	$ 842	$ 825
Additions charged to income tax expense	228	170	54
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	(239)	(58)	(82)
Other adjustments (1)	$ (15)	$ 511	$ 45

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09(Column C)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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-Section S99
-Paragraph 4
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-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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