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Share Repurchase Share repurchase (Details) - USD ($) |  |  | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Feb. 27, 2024 | Nov. 17, 2023 | Mar. 30, 2024 | Mar. 30, 2024 | Nov. 15, 2023 | Nov. 06, 2023 | Sep. 23, 2022
share repurchase plan [Line Items] |  |  |  |  |  |  |
Stock Repurchased During Period, Value |  |  | $ 0 | $ 150,000,000 |  |  |
Accelerated share repurchase agreement |  |  |  |  |  | $ 500,000,000 |
Accelerated Share Repurchases, Settlement (Payment) or Receipt |  | $ 500,000,000 |  |  | $ 500,000,000 |  |
Percentage of share repurchase program |  | 80.00% |  |  |  |  |
Repurchase of common stock (in shares) | 1,400,000 | 5,600,000 |  |  |  |  |
September 22, 2022 |  |  |  |  |  |  |
share repurchase plan [Line Items] |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  | $ 1,000,000,000
Stock Repurchased During Period, Shares |  |  | 0 | 2,200,000 |  |  |
Stock Repurchase Program, Remaining Authorized Repurchase Amount |  |  | $ 348,600,000 | $ 348,600,000 |  |  |
December 11, 2020 |  |  |  |  |  |  |
share repurchase plan [Line Items] |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  | $ 1,000,000,000 | $ 1,000,000,000 |  |  |

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