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Stockholders' Equity (Details) - USD ($) |  |  | 1 Months Ended | 3 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 26, 2024 | Jun. 13, 2024 | Jun. 30, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Sep. 30, 2025 | Jun. 30, 2025 | May 31, 2025 | May 14, 2024 | May 13, 2024 | May 12, 2024 | May 09, 2024
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stock repurchased (in shares) |  |  | 33,325,849 |  |  |  |  |  |  |  |  |
Shares acquired, average cost per share (in dollars per share) |  |  | $ 60.00 |  |  |  |  |  |  |  |  |
Repurchases of common stock |  |  | $ 2,000,000,000.0 | $ 103,000 | $ 2,023,872,000 |  |  |  |  |  |  |
Share repurchase, fees and expenses |  |  | 24,400,000 |  |  |  |  |  |  |  |  |
Share repurchase, excise tax |  |  | $ 19,100,000 |  |  |  |  |  |  |  |  |
Baker Entities | Incyte |  |  |  |  |  |  |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 16.40%
Board of Directors Approved Share Repurchase Program |  |  |  |  |  |  |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase program, authorized, amount |  |  |  |  |  |  |  |  |  | $ 2,000,000,000.0 |  |
Dutch Auction Tender Offer |  |  |  |  |  |  |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase program, authorized, amount |  |  |  |  |  |  |  |  | $ 1,672,000,000 |  |  |
Stock repurchased (in shares) |  | 27,866,666 |  |  |  |  |  |  |  |  |  |
Shares acquired, average cost per share (in dollars per share) |  | $ 60.00 |  |  |  |  |  |  |  |  |  |
Repurchases of common stock |  | $ 1,672,000,000 |  |  |  |  |  |  |  |  |  |
Dutch Auction Tender Offer | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase program, tender offer (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 60.00 |  |
Dutch Auction Tender Offer | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase program, tender offer (in dollars per share) |  |  |  |  |  |  |  |  |  | $ 52.00 |  |
Baker Entities Share Repurchase Program |  |  |  |  |  |  |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Share repurchase program, authorized, amount |  |  |  |  |  |  |  |  |  |  | $ 328,000,000.0 |
Stock repurchased (in shares) | 5,459,183 |  |  |  |  |  |  |  |  |  |  |
Shares acquired, average cost per share (in dollars per share) | $ 60.00 |  |  |  |  |  |  |  |  |  |  |
Repurchases of common stock | $ 328,000,000 |  |  |  |  |  |  |  |  |  |  |
Stock Incentive Plan 2010 |  |  |  |  |  |  |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Shares reserved for future issuance (in shares) |  |  |  |  |  |  | 74,953,475 | 66,453,475 |  |  |  |
2024 Inducement Plan |  |  |  |  |  |  |  |  |  |  |  |
Share Repurchase Program [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Shares reserved for future issuance (in shares) |  |  |  |  |  | 2,000,000 |  |  |  |  |  |

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