Acquisitions, Dispositions, and Funded Research and Development Arrangements - Schedule of Fair Value Measurement, Contingent Consideration, Significant Unobservable Inputs (Details) $ in Millions	Jul. 31, 2026 USD ($)	Apr. 24, 2026 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of contingent consideration	$ 275	$ 163
Level 3 \| Revenue and other performance-based payments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of contingent consideration	$ 220
Level 3 \| Revenue and other performance-based payments \| Discount rate \| Minimum
Fair Value Inputs
Contingent consideration, significant unobservable inputs	0.078
Level 3 \| Revenue and other performance-based payments \| Discount rate \| Maximum
Fair Value Inputs
Contingent consideration, significant unobservable inputs	0.282
Level 3 \| Revenue and other performance-based payments \| Discount rate \| Weighted Average
Fair Value Inputs
Contingent consideration, significant unobservable inputs	0.111
Level 3 \| Product development and other milestone-based payments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of contingent consideration	$ 55
Level 3 \| Product development and other milestone-based payments \| Discount rate
Fair Value Inputs
Contingent consideration, significant unobservable inputs	0.055
Level 3 \| Product development and other milestone-based payments \| Discount rate \| Weighted Average
Fair Value Inputs
Contingent consideration, significant unobservable inputs	0.055