| Fiscal period | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
| Period End Date | 12/31/2025 | 12/31/2024 | 12/31/2023 | 12/31/2022 | 12/31/2021 | 12/31/2020 | 12/31/2019 | 12/31/2018 | 12/31/2017 | 5/31/2016 |
| Revenues | 7,705.88 | 10,105.89 | 9,654.42 | 8,975.52 | 8,523.76 | 7,423.56 | 4,911.89 | 3,366.37 | 3,975.16 | 2,898.15 |
| Total Revenues | 7,705.88 | 10,105.89 | 9,654.42 | 8,975.52 | 8,523.76 | 7,423.56 | 4,911.89 | 3,366.37 | 3,975.16 | 2,898.15 |
| Cost of service | 2,113.38 | 3,760.12 | 3,727.52 | 3,778.62 | 3,773.73 | 3,650.73 | 2,073.80 | 1,095.01 | 1,928.04 | 1,147.64 |
| Gross Profit | 5,592.50 | 6,345.78 | 5,926.90 | 5,196.90 | 4,750.04 | -- | -- | 2,271.35 | 2,047.13 | 1,750.51 |
| Processing system intrusion | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Sales, general and administrative | 4,120.63 | 4,285.31 | 4,073.77 | 3,524.58 | 3,391.16 | 2,878.88 | 2,046.67 | 1,534.30 | 1,488.26 | 1,325.57 |
| Restructuring and other | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Impairment | (33.22) | -- | -- | (833.08) | -- | -- | -- | -- | -- | -- |
| Loss on business dispositions | 315.98 | 273.13 | (136.74) | (199.09) | -- | -- | -- | -- | -- | -- |
| Total Operating Expenses | 5,951.25 | 7,772.29 | 7,938.03 | 8,335.36 | 7,164.89 | 6,529.61 | 4,120.48 | 2,629.31 | 3,416.30 | 2,473.21 |
| Operating Income / (Loss) | 1,754.62 | 2,333.61 | 1,716.39 | 640.15 | 1,358.88 | 893.95 | 791.42 | 737.06 | 558.87 | 424.94 |
| Interest and other expense | 649.64 | 633.99 | 660.15 | 449.43 | 333.65 | 343.55 | 304.91 | 195.62 | 174.85 | 69.32 |
| Loss on investment | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Minority interest in earnings | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Interest and other income (expense) | 155.14 | 169.17 | 113.71 | 33.60 | 19.32 | 43.55 | 31.41 | 20.72 | 8.66 | 5.28 |
| Income Before Income Taxes And Minority Interest | 1,260.12 | 1,868.79 | 1,169.95 | 224.32 | 1,044.55 | 593.96 | 517.93 | 562.16 | 392.68 | 360.91 |
| Provision for income taxes | 251.56 | 295.13 | 209.02 | 166.69 | 169.03 | 77.15 | 62.19 | 77.49 | (101.39) | 70.70 |
| Current tax expense:Foreign | 179.52 | 201.14 | 209.96 | 125.58 | 103.78 | 82.46 | 90.90 | 79.32 | 67.85 | 56.69 |
| Deferred tax expense (benefit):Foreign | (98.87) | (60.99) | (83.68) | (26.63) | 7.84 | 7.11 | 0.60 | 8.47 | 4.58 | 3.88 |
| Current tax expense:Federal | 282.09 | 361.90 | 399.90 | 277.12 | 195.80 | 124.18 | 50.05 | (20.98) | 79.90 | 26.49 |
| Current tax expense:State | 73.82 | 78.31 | 98.22 | 68.12 | 58.77 | 35.84 | 29.79 | 21.12 | 3.47 | 5.45 |
| Deferred tax expense (benefit):Federal | (174.62) | (238.55) | (330.65) | (235.73) | (178.67) | (151.82) | (79.81) | (8.76) | (266.87) | (18.21) |
| Deferred tax expense (benefit):State | (10.39) | (46.69) | (84.73) | (41.77) | (18.50) | (20.61) | (29.33) | (1.68) | 9.68 | (3.62) |
| Minority interest | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Equity in income of equity method investments, net of tax | 120.11 | 70.50 | 67.90 | 85.69 | 112.35 | 88.30 | 13.54 | -- | -- | -- |
| Income from Continuing Operations | 1,128.68 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (loss) from Discontinued Operations, net of tax | 327.37 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income Before Extraordinary Income & Accounting Change | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Cumulative Effect of a Change in Accounting Principle, net | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net income (loss) including noncontrolling interests | 1,456.05 | 1,644.15 | 1,028.82 | 143.31 | 987.86 | 605.10 | 469.28 | 484.67 | 494.07 | 290.22 |
| Less: Net income attributable to noncontrolling interests | 55.94 | 73.79 | 42.59 | 31.82 | 22.40 | 20.58 | 38.66 | 32.61 | 25.65 | 18.55 |
| Net Income (Loss) Available to Common Shareholders | 1,400.11 | 1,570.37 | 986.23 | 111.49 | 965.46 | 584.52 | 430.61 | 452.05 | 468.43 | 271.67 |
| Continuing Operations- (Basic) | 4.44 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| EPS (Basic) - Income from discontinued operations, net of tax | 1.35 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Basic:Cumulative effect of a change in accounting principle | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Basic Earnings Per Share | 5.79 | 6.18 | 3.78 | 0.41 | 3.30 | 1.95 | 2.17 | 2.85 | 3.03 | 2.05 |
| Continuing Operations- (Diluted) | 4.43 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| EPS (Diluted) - Income from discontinued operations, net of tax | 1.35 | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Diluted:Cumulative effect of a change in accounting principle | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Diluted Earnings Per Share | 5.78 | 6.16 | 3.77 | 0.40 | 3.29 | 1.95 | 2.16 | 2.84 | 3.01 | 2.04 |
| Weighted Average Shares Outstanding (Basic) | 241.63 | 254.29 | 261.13 | 275.19 | 292.66 | 299.22 | 198.30 | 158.67 | 154.65 | 132.28 |
| Weighted Average Shares Outstanding (Diluted) | 242.01 | 254.85 | 261.70 | 275.58 | 293.67 | 300.52 | 199.13 | 159.27 | 155.53 | 133.17 |