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Stock Compensation Plans - SSAR's and Stock Option Exercisable (Detail) - SSAR's and Options [Member] - Over $65 $ / shares in Units, shares in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Number Exercisable (in shares) | shares | 197
Weighted Average Remaining Contractual Life (in years) | 3 years 4 months 20 days
Weighted Average Exercise Price (in dollars per share) | $ / shares | $ 111.70
Aggregate Intrinsic Value | $ | $ 0

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