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v3.25.1

Fair value measurement - Schedule of Fair Value of Financial Assets and Liabilities on Recurring Basis (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Assets: |  |
Available-for-sale securities: | $ 8,302 | $ 11,486
Equity securities | 5,482 | 4,188
Derivatives: |  |
Total assets | 13,979 | 16,094
Derivatives: |  |
Contingent consideration obligations | 104 | 106
Total liabilities | 984 | 1,128
Foreign currency forward contracts |  |
Derivatives: |  |
Foreign currency forward contracts | 195 | 420
Derivatives: |  |
Derivative liabilities | 44 | 8
Cross-currency swap contracts |  |
Derivatives: |  |
Derivative liabilities | 417 | 483
Interest rate swap contracts |  |
Derivatives: |  |
Interest rate swap contracts | 419 | 531
Quoted prices in active markets for identical assets (Level 1) |  |
Assets: |  |
Equity securities | 5,482 | 4,188
Derivatives: |  |
Total assets | 12,664 | 14,542
Derivatives: |  |
Contingent consideration obligations | 0 | 0
Total liabilities | 0 | 0
Quoted prices in active markets for identical assets (Level 1) | Foreign currency forward contracts |  |
Derivatives: |  |
Foreign currency forward contracts | 0 | 0
Derivatives: |  |
Derivative liabilities | 0 | 0
Quoted prices in active markets for identical assets (Level 1) | Cross-currency swap contracts |  |
Derivatives: |  |
Derivative liabilities | 0 | 0
Quoted prices in active markets for identical assets (Level 1) | Interest rate swap contracts |  |
Derivatives: |  |
Interest rate swap contracts | 0 | 0
Significant other observable inputs (Level 2) |  |
Assets: |  |
Equity securities | 0 | 0
Derivatives: |  |
Total assets | 1,315 | 1,552
Derivatives: |  |
Contingent consideration obligations | 0 | 0
Total liabilities | 880 | 1,022
Significant other observable inputs (Level 2) | Foreign currency forward contracts |  |
Derivatives: |  |
Foreign currency forward contracts | 195 | 420
Derivatives: |  |
Derivative liabilities | 44 | 8
Significant other observable inputs (Level 2) | Cross-currency swap contracts |  |
Derivatives: |  |
Derivative liabilities | 417 | 483
Significant other observable inputs (Level 2) | Interest rate swap contracts |  |
Derivatives: |  |
Interest rate swap contracts | 419 | 531
Significant unobservable inputs (Level 3) |  |
Assets: |  |
Equity securities | 0 | 0
Derivatives: |  |
Total assets | 0 | 0
Derivatives: |  |
Contingent consideration obligations | 104 | 106
Total liabilities | 104 | 106
Significant unobservable inputs (Level 3) | Foreign currency forward contracts |  |
Derivatives: |  |
Foreign currency forward contracts | 0 | 0
Derivatives: |  |
Derivative liabilities | 0 | 0
Significant unobservable inputs (Level 3) | Cross-currency swap contracts |  |
Derivatives: |  |
Derivative liabilities | 0 | 0
Significant unobservable inputs (Level 3) | Interest rate swap contracts |  |
Derivatives: |  |
Interest rate swap contracts | 0 | 0
U.S. Treasury bills |  |
Assets: |  |
Available-for-sale securities: | 997 | 997
U.S. Treasury bills | Quoted prices in active markets for identical assets (Level 1) |  |
Assets: |  |
Available-for-sale securities: | 0 | 0
U.S. Treasury bills | Significant other observable inputs (Level 2) |  |
Assets: |  |
Available-for-sale securities: | 997 | 997
U.S. Treasury bills | Significant unobservable inputs (Level 3) |  |
Assets: |  |
Available-for-sale securities: | 0 | 0
Money market mutual funds |  |
Assets: |  |
Available-for-sale securities: | 7,182 | 10,354
Money market mutual funds | Quoted prices in active markets for identical assets (Level 1) |  |
Assets: |  |
Available-for-sale securities: | 7,182 | 10,354
Money market mutual funds | Significant other observable inputs (Level 2) |  |
Assets: |  |
Available-for-sale securities: | 0 | 0
Money market mutual funds | Significant unobservable inputs (Level 3) |  |
Assets: |  |
Available-for-sale securities: | 0 | 0
Other short-term interest-bearing securities |  |
Assets: |  |
Available-for-sale securities: | 123 | 135
Other short-term interest-bearing securities | Quoted prices in active markets for identical assets (Level 1) |  |
Assets: |  |
Available-for-sale securities: | 0 | 0
Other short-term interest-bearing securities | Significant other observable inputs (Level 2) |  |
Assets: |  |
Available-for-sale securities: | 123 | 135
Other short-term interest-bearing securities | Significant unobservable inputs (Level 3) |  |
Assets: |  |
Available-for-sale securities: | $ 0 | $ 0

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