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Stock-Based Compensation - Stock-Based Compensation Cost and Associated Tax Benefit (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Share-Based Payment Arrangement, Noncash Expense [Abstract] |  |  |  |
Tax benefit | $ 12 | $ 12 | $ 24 | $ 22
Stock-based compensation cost | $ 56 | $ 50 | $ 109 | $ 97

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