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Stock-Based Compensation - Stock Option Activity 1 (Detail) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Options Outstanding | 1,260,465 |
Options Outstanding, Weighted Average Remaining Life (years) | 5 years 1 month 6 days |
Options Outstanding, Aggregate Intrinsic Value | $ 548 |
Options Exercisable | 300,356 |
Options Exercisable, Weighted Average Remaining Life (years) | 10 months 24 days |
Options Exercisable, Aggregate Intrinsic Value | $ 167 |
2017 Performance-based Options |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Options Outstanding, Exercise Prices | $ 513.5 | $ 513.5
Options Outstanding | 300,356 | 625,825
Options Outstanding, Weighted Average Remaining Life (years) | 10 months 24 days |
Options Outstanding, Aggregate Intrinsic Value | $ 167 |
Options Exercisable, Exercise Prices | $ 513.5 |
Options Exercisable | 300,356 |
Options Exercisable, Weighted Average Remaining Life (years) | 10 months 24 days |
Options Exercisable, Aggregate Intrinsic Value | $ 167 |
2023 Performance-based Options |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Options Outstanding, Exercise Prices | $ 673.58 |
Options Outstanding | 678,732 |
Options Outstanding, Weighted Average Remaining Life (years) | 6 years 4 months 24 days |
Options Outstanding, Aggregate Intrinsic Value | $ 269 |
Options Exercisable, Exercise Prices | $ 673.58 |
Options Exercisable | 0 |
Options Exercisable, Weighted Average Remaining Life (years) | 0 years |
Options Exercisable, Aggregate Intrinsic Value | $ 0 |
2023 Time-based Options |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |
Options Outstanding, Exercise Prices | $ 673.58 |
Options Outstanding | 281,377 |
Options Outstanding, Weighted Average Remaining Life (years) | 6 years 4 months 24 days |
Options Outstanding, Aggregate Intrinsic Value | $ 112 |
Options Exercisable, Exercise Prices | $ 673.58 |
Options Exercisable | 0 |
Options Exercisable, Weighted Average Remaining Life (years) | 0 years |
Options Exercisable, Aggregate Intrinsic Value | $ 0 |

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