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v3.25.1

Stockholders' Equity - Narrative (Details) - USD ($) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2025 | Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022 | Nov. 30, 2021
Class of Stock [Line Items] |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  | $ 4,000,000,000.00
Repurchased shares under authorization (in shares) |  | 1,000,000.0 | 11,900,000 | 12,900,000 |  |
Repurchased shares under authorization, value |  | $ 89,600,000 | $ 988,900,000 | $ 945,900,000 |  |
Excise tax (as a percent) | 1.00% | 1.00% |  |  |  |
Stock repurchase program, remaining authorized repurchase amount | $ 1,560,000,000 | $ 1,560,000,000 |  |  |  |
Common stock held in treasury (in shares) | 39,292,311 | 39,292,311 | 41,142,968 |  |  |
Preferred stock, liquidation preference (in dollars per share) | $ 1,000 | $ 1,000 |  |  |  |
Preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001 | $ 0.001 |  |  |
Issuance of Series A Preferred Stock | $ 1,450,000,000 | $ 1,449,500,000 | $ 0 | 0 |  |
Cumulative annual dividend rate (as a percentage) | 7.50% |  |  |  |  |
Capped options indexed to equity, costs |  | $ 160,100,000 | $ 0 | $ 0 |  |
Cash dividend paid (in dollars per share) |  | $ 1.816 | $ 1.682 | $ 1.263 |  |
Cash dividend |  | $ 975,700,000 | $ 911,500,000 | $ 695,300,000 |  |
Common Stock Held in Treasury Amount |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Repurchased shares under authorization (in shares) |  | 1,000,000.0 | 11,900,000 | 12,900,000 |  |
Repurchased shares under authorization, value |  | $ 89,600,000 | $ 988,900,000 | $ 945,800,000 |  |
Common stock held in treasury (in shares) | 39,300,000 | 39,300,000 | 41,100,000 | 32,300,000 | 23,300,000 |
Minimum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Preferred stock, conversion ratio | 16.0060 | 16.0060 |  |  |  |
Maximum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Preferred stock, conversion ratio | 19.6080 | 19.6080 |  |  |  |
Depository shares |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Issuance of Series A Preferred Stock (shares) | 29,700,000 |  |  |  |  |
Convertible preferred stock |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Issuance of Series A Preferred Stock (shares) | 1,500,000 |  |  |  |  |
Capped options indexed to equity, costs | $ 55,100,000 |  |  |  |  |
Convertible preferred stock | Maximum |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |
Option indexed to equity, strike price (in dollars per share) | $ 71.40 |  |  |  |  |

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