Legal Matters - Additional Information (Details) $ in Millions |
3 Months Ended | 9 Months Ended | 109 Months Ended | |
|---|---|---|---|---|
|
Jun. 30, 2022
USD ($)
|
Jun. 30, 2022
USD ($)
|
Jun. 30, 2021
USD ($)
|
Jul. 28, 2022
merchant
|
|
| Loss Contingencies [Line Items] | ||||
| Deposits into the litigation escrow account | $ | $ 850 | $ 0 | ||
| U.S. Covered Litigation | ||||
| Loss Contingencies [Line Items] | ||||
| Provision for legal matters | $ | $ 716 | 861 | $ 0 | |
| Deposits into the litigation escrow account | $ | $ 600 | $ 850 | ||
| Interchange Multidistrict Litigation | ||||
| Loss Contingencies [Line Items] | ||||
| Settlement percentage | 55.00% | 55.00% | ||
| Europe Merchant Litigation | Subsequent Event | ||||
| Loss Contingencies [Line Items] | ||||
| Number of plaintiffs | 850 | |||
| Number of claims settled | 150 | |||
| Number of claims pending | 650 | |||
| Europe Merchant Litigation | Threatened Litigation | Subsequent Event | ||||
| Loss Contingencies [Line Items] | ||||
| Number of plaintiffs | 30 | |||