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Stockholders' Equity (Deficit) - Schedule of Share Repurchases (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 31, 2022 | Feb. 28, 2022 | Mar. 31, 2022 | Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Programs |  |  |  |  |  |
Beginning balance |  |  |  | $ 6,615 | $ 3,613 | $ 3,278
Share repurchase authorization increase |  |  |  | 4,000 | 6,000 | 4,000
Ending balance |  |  | $ 3,278 | 7,469 | 6,615 | $ 3,613
Excise taxes |  |  |  | $ 26 | $ 25 |
Accelerated Share Repurchase, February 2022 |  |  |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |  |  |
Total Number of Shares Purchased (in shares) |  |  |  |  |  | 0.3
Average Price Paid Per Share (in dollars per share) |  |  |  |  |  | $ 295.16
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Programs |  |  |  |  |  |
Shares repurchased |  | $ (1,500) |  |  |  | $ 0
Accelerated Share Repurchase, May 2022 |  |  |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |  |  |
Total Number of Shares Purchased (in shares) |  |  |  |  |  | 3.1
Average Price Paid Per Share (in dollars per share) |  |  |  |  |  | $ 321.05
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Programs |  |  |  |  |  |
Shares repurchased |  |  |  |  |  | $ (1,000)
Accelerated Share Repurchase, December 2022 |  |  |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |  |  |
Total Number of Shares Purchased (in shares) |  |  |  |  |  | 2.6
Average Price Paid Per Share (in dollars per share) |  |  |  |  |  | $ 369.20
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Programs |  |  |  |  |  |
Shares repurchased |  |  |  |  |  | $ (972)
Open Market Transactions |  |  |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |  |  |
Total Number of Shares Purchased (in shares) |  |  |  | 5.8 | 6.9 | 4.7
Average Price Paid Per Share (in dollars per share) |  |  |  | $ 543.05 | $ 436.46 | $ 363.24
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Programs |  |  |  |  |  |
Shares repurchased |  |  |  | $ (3,146) | $ (2,998) | $ (1,693)
Open Market Transactions | Other Accrued Liabilities |  |  |  |  |  |
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Programs |  |  |  |  |  |
Shares repurchased |  |  |  |  |  | $ (27)
Accelerated Share Repurchase |  |  |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |  |  |
Total Number of Shares Purchased (in shares) | 0.3 |  | 4.8 |  |  |
Average Price Paid Per Share (in dollars per share) |  | $ 295.16 |  |  |  |
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Programs |  |  |  |  |  |
Repurchase of common stock (in shares) |  | 5.1 |  |  |  |

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