XML 29 R7.htm IDEA: XBRL DOCUMENT
v3.5.0.2

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - $ / shares | 12 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014
Statement of Stockholders' Equity [Abstract] |  |  |
Cash dividends declared and paid, quarterly, per as-converted share | $ 0.14 | $ 0.12 | $ 0.10

X
- References No definition available. + Details
Name: | us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Cash dividends declared and paid, quarterly, per as-converted share + References No definition available. + Details
Name: | v_Cashdividendsdeclaredandpaidquarterlyperasconvertedshare
Namespace Prefix: | v_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration