Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 231
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482663/740-10-55-231

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
Income Taxes (Details) - USD ($) $ in Millions	Sep. 30, 2026	Mar. 31, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Valuation Allowance [Line Items]
Effective tax rate (as percent)	70.80%		17.60%	62.10%	27.40%
Switzerland
Valuation Allowance [Line Items]
Increase in valuation allowance	$ 491	$ 123		$ 614
United States
Valuation Allowance [Line Items]
Increase in valuation allowance	$ 317			$ 317