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Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2024

Other Provisions, Contingent Liabilities And Contingent Assets [Abstract]

Summary of commitments to make payments under long-term research agreements

As of December 31, 2024, the commitments to make payments under those agreements, and their estimated timing, were as follows:

($ millions)			2024
2025			29
2026			10
2027			6
2028			5
2029			—
Thereafter			69
Total			119

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