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Contingencies (Details) employee in Thousands, $ in Millions, $ in Millions | Jun. 23, 2025 USD ($) | Jan. 31, 2025 USD ($) | Dec. 12, 2024 USD ($) supplierContribution | Dec. 12, 2024 MXN ($) supplierContribution | Aug. 17, 2022 USD ($) defendant | Jul. 31, 2025 territory securitiesClassAction case classAction state employee phase | Jan. 09, 2025 pharmacist | Jan. 31, 2023 USD ($)
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Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Number of cases brought by third-party payers | case |  |  |  |  |  | 4 |  |
Number of cases brought by hospitals | case |  |  |  |  |  | 1 |  |
Number of former employees who brought complaints | pharmacist |  |  |  |  |  |  | 2 |
Number of phases | phase |  |  |  |  |  | 3 |  |
Canada Opioids Class Action Complaints |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Number of putative class actions | classAction |  |  |  |  |  | 2 |  |
Opioids Litigation |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Number of states with settlement agreements | state |  |  |  |  |  | 50 |  |
Number of U.S. territories with settlement agreements | territory |  |  |  |  |  | 3 |  |
Loss contingency, accrued liabilities |  |  |  |  |  |  |  | $ 3,300
Number of securities class actions | securitiesClassAction |  |  |  |  |  | 2 |  |
Opioids Litigation | Judicial Ruling, Pending Appeal |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Loss contingency, number of defendants | defendant |  |  |  |  | 3 |  |  |
Loss contingency, damages awarded, value |  |  |  |  | $ 700 |  |  |
Loss contingency, damages awarded, period |  |  |  |  | 15 years |  |  |
Loss contingency, damages awarded value, vacated |  | $ 700 |  |  |  |  |  |
Asda Equal Value Claims |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Number of current and former employees who brought claims | employee |  |  |  |  |  | 70 |  |
Mexico Antitrust Matter | Pending Litigation |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Loss contingency, damages awarded, value |  |  | $ 5 | $ 93.4 |  |  |  |
Types of supplier contributions | supplierContribution |  |  | 2 | 2 |  |  |  |
Money Transfer Agent Services Matters | Settled Litigation |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Loss contingency, damages awarded, value | $ 10 |  |  |  |  |  |  |
Loss contingency, damages awarded, period | 3 years |  |  |  |  |  |  |

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