Settlement Guarantee Management - Collateral (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Sep. 30, 2020
Settlement Guarantee Management [Abstract]
Restricted cash and restricted cash equivalents	$ 2,260	$ 1,850
Pledged securities at market value	254	228
Letters of credit	1,518	1,306
Guarantees	758	717
Total	$ 4,790	$ 4,101

The Company holds cash deposits from certain customers in order to ensure their performance of settlement obligations arising from credit, debit and travelers cheque product clearings. The cash collateral assets are restricted and fully offset by corresponding liabilities and both balances are presented on the consolidated balance sheet.

No definition available.

Name:	v_CashCollateralReceived
Namespace Prefix:	v_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant