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Stockholders' Deficit - Schedule of Shares Repurchased Activity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 12 Months Ended | 15 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Mar. 31, 2025 | Jun. 30, 2025
Share Repurchases, Approximate Dollar Value of Shares that May Yet Be Purchased Under the Programs [Roll Forward] |  |  |  |
Beginning balance | $ 7,469 | $ 6,615 | $ 6,615 | $ 6,615
Ending balance | $ 6,879 | $ 6,088 | 7,469 | 6,879
Excise taxes |  |  | $ 26 | $ 28
Open Market Transactions |  |  |  |
Accelerated Share Repurchases [Line Items] |  |  |  |
Total Number of Shares Purchased (in shares) | 0.8 | 1.0 |  |
Average Price Paid Per Share (in dollars per share) | $ 709.84 | $ 548.20 |  |
Share Repurchases, Approximate Dollar Value of Shares that May Yet Be Purchased Under the Programs [Roll Forward] |  |  |  |
Shares repurchased | $ (590) | $ (527) |  |
Open Market Transactions | Other Accrued Liabilities |  |  |  |
Share Repurchases, Approximate Dollar Value of Shares that May Yet Be Purchased Under the Programs [Roll Forward] |  |  |  |
Shares repurchased | $ (9) |  |  |

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- Definition Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership. + References No definition available. + Details
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