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Fair Value Measurement - Summary of Fair Value of Financial Liabilities Measured Using Level 3 Inputs (Detail) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value at the beginning of the period | $ (401) | $ (477)
Bifurcated embedded derivatives |  |
Fair value at the end of the period | (394) | (527)
Nove Tide Acquisition [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Adjustments to provisions for contingent consideration | (1) | (1)
Settlement of contingent consideration | 2 | 1
Allergan transaction [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Adjustments to provisions for contingent consideration | (9) | (64)
Settlement of contingent consideration | 4 | 13
Eagle Transaction [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Adjustments to provisions for contingent consideration | (1) | (14)
Settlement of contingent consideration | $ 12 | $ 15

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