Settlement Guarantee Management - Collateral (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Sep. 30, 2019
Settlement Guarantee Management [Abstract]
Restricted cash and restricted cash equivalents	$ 1,850	$ 1,648
Pledged securities at market value	228	259
Letters of credit	1,306	1,293
Guarantees	717	477
Total	$ 4,101	$ 3,677

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