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Employee Benefit Plans - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Share-based Compensation |  |  |
Employer matching contribution, percent of match | 50.00% |  |
Profit sharing expenses | $ 125 | $ 107 | $ 106
Discontinued operations | $ 0 | 3 | 29
Employee contribution of pretax annual compensation | 40.00% |  |
Employee matching contribution, percent of employees' gross pay | 6.00% |  |
Incremental stock compensation directly attributable to specific programs | $ 0 | 3 | 34
Total unrecognized compensation cost related to non-vested stock awards | $ 197 | $ 222 |
Weighted average period over which compensation cost is expected to be recognized | 1 year 6 months | 1 year 6 months |
Selling, General and Administrative Expenses |  |  |
Share-based Compensation |  |  |
Incremental stock compensation directly attributable to specific programs | $ 181 | $ 186 | 120
FIS Plan Amended and Restated |  |  |
Share-based Compensation |  |  |
Shares available for grant, ending (in shares) | 24,000,000 |  |
Stock Options |  |  |
Share-based Compensation |  |  |
Minimum percentage contribution made by employees of their salary to employee benefit plan | 3.00% |  |
Maximum percentage contribution made by employees of their salary to employee benefit plan | 15.00% |  |
Employer matching contribution, percent of match | 20.00% |  |
Profit sharing expenses | $ 10 | 10 | 11
Discontinued operations | $ 0 | $ 1 | $ 1
Restricted Stock Units |  |  |
Share-based Compensation |  |  |
Vesting period | 3 years |  |
Restricted stock, shares granted (in shares) | 2,000,000 | 3,000,000 | 3,000,000
Restricted stock weighted average grant price (in dollars per share) | $ 70.03 | $ 70.65 | $ 61.34
Fair value of vested stock | $ 145 | $ 93 | $ 40
Performance Stock Units |  |  |
Share-based Compensation |  |  |
Restricted stock, shares granted (in shares) | 1,000,000 |  |
Restricted stock weighted average grant price (in dollars per share) | $ 74.91 |  |
Granted (less than) (in shares) | 1,000,000 | 1,000,000 | 1,000,000
Weighted average exercise price of awards granted (in dollars per share) | $ 74.91 | $ 69.75 | $ 65.43
Vested | $ 97 | $ 17 | $ 10

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