XML 64 R46.htm IDEA: XBRL DOCUMENT
v3.21.4

Stockholders' Equity - Number of Shares of Class A Common Shares Outstanding on an As-Converted Basis (Detail) shares in Millions | Dec. 31, 2021 shares | Sep. 30, 2021 shares
--- | --- | ---
Schedule of Common Stock as Converted [Line Items] |  |
As-converted Class A Common Stock (in shares) | 2,142 | 2,161
Series A preferred stock |  |
Schedule of Common Stock as Converted [Line Items] |  |
Preferred stock, shares outstanding (in shares) | 0 | 0
Preferred stock, conversion rate into Class A Common Stock | 100.0000 | 100.0000
As-converted Class A Common Stock (in shares) | 6 | 7
Series B preferred stock |  |
Schedule of Common Stock as Converted [Line Items] |  |
Preferred stock, shares outstanding (in shares) | 2 | 2
Preferred stock, conversion rate into Class A Common Stock | 6.271 | 6.321
As-converted Class A Common Stock (in shares) | 16 | 16
Series C preferred stock |  |
Schedule of Common Stock as Converted [Line Items] |  |
Preferred stock, shares outstanding (in shares) | 3 | 3
Preferred stock, conversion rate into Class A Common Stock | 6.829 | 6.834
As-converted Class A Common Stock (in shares) | 22 | 22
Class A common stock |  |
Schedule of Common Stock as Converted [Line Items] |  |
Common stock, shares outstanding (in shares) | 1,661 | 1,677
As-converted Class A Common Stock (in shares) | 1,661 | 1,677
Class B common stock |  |
Schedule of Common Stock as Converted [Line Items] |  |
Common stock, shares outstanding (in shares) | 245 | 245
Common stock, conversion rate into Class A Common Stock | 1.6181 | 1.6228
As-converted Class A Common Stock (in shares) | 397 | 398
Class C common stock |  |
Schedule of Common Stock as Converted [Line Items] |  |
Common stock, shares outstanding (in shares) | 10 | 10
Common stock, conversion rate into Class A Common Stock | 4.0000 | 4.0000
As-converted Class A Common Stock (in shares) | 40 | 41

X
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_PreferredStockSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Common Stock, Conversion Rate + References No definition available. + Details
Name: | v_CommonStockConversionRate
Namespace Prefix: | v_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Preferred Stock, Conversion Rate + References No definition available. + Details
Name: | v_PreferredStockConversionRate
Namespace Prefix: | v_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Schedule of Common Stock as Converted [Line Items] + References No definition available. + Details
Name: | v_ScheduleOfCommonStockAsConvertedLineItems
Namespace Prefix: | v_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Shares Outstanding As Converted Basis + References No definition available. + Details
Name: | v_SharesOutstandingAsConvertedBasis
Namespace Prefix: | v_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesAPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesBPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesCPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |