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Stock Compensation Plans - Narrative (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
RSUs | Cliff |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period | 3 years |  |
Performance-Based RSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Weighted-average fair value of awards granted (in dollars per share) | $ 95.34 | $ 80.28 | $ 79.93
Total fair value of awards that vested | $ 14,000,000 | $ 12,000,000 | $ 21,000,000
Total unrecognized stock compensation expense | $ 5,000,000 |  |
Weighted average period to recognize unrecognized compensation cost | 1 year 9 months 18 days |  |
Performance-Based RSUs | Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Percentage of target award available for grant | 0.00% |  |
Performance-Based RSUs | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Percentage of target award available for grant | 200.00% |  |
Performance-Based RSUs | Cliff |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period | 3 years |  |
Time-Based RSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Weighted-average fair value of awards granted (in dollars per share) | $ 95.20 | $ 76.44 | $ 73.13
Total fair value of awards that vested | $ 34,000,000 | $ 25,000,000 | $ 39,000,000
Total unrecognized stock compensation expense | $ 35,000,000 |  |
Weighted average period to recognize unrecognized compensation cost | 1 year 9 months 18 days |  |
Stock Purchase Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares available (in shares) | 73,388 |  |
Purchase price of shares in terms compared to market price per share (as a percent) | 90.00% |  |
Annual purchase limitation per employee (in dollars per employee) | $ 22,500 |  |
Share-based Payment Arrangement, Expense | $ 0 |  |
Common stock, shares authorized (in shares) | 2,000,000 |  |
Shares sold to employees (in shares) | 36,863 | 41,563 |
Value of shares sold to employees under purchase plan | $ 3,000,000 | $ 3,000,000 |
2021 Stock Incentive Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Number of shares outstanding other than RSUs (in shares) | 0 | 0 | 0
Shares available (in shares) | 3,000,000 |  |

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