Debt and Borrowing Arrangements - Debt Issuances (Details) - Notes Payable SFr in Millions, $ in Millions	Apr. 10, 2026 CHF (SFr)	Apr. 10, 2026 USD ($)
0.958% Notes Due April 2029
Debt Instrument [Line Items]
Interest Rate	0.958%	0.958%
Debt issued	SFr 325	$ 411
1.271% Notes Due November 2032
Debt Instrument [Line Items]
Interest Rate	1.271%	1.271%
Debt issued	SFr 245	$ 309
1.625% Notes Due April 2036
Debt Instrument [Line Items]
Interest Rate	1.625%	1.625%
Debt issued	SFr 280	$ 354
4.250% Notes Due May 2028
Debt Instrument [Line Items]
Interest Rate	4.25%	4.25%
Debt issued	SFr 700	$ 700
4.500% Notes Due May 2030
Debt Instrument [Line Items]
Interest Rate	4.50%	4.50%
Debt issued	SFr 500	$ 500
5.125% Notes Due May 2035
Debt Instrument [Line Items]
Interest Rate	5.125%	5.125%
Debt issued	SFr 400	$ 400

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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