v3.3.0.814
Basic and Diluted Earnings Per Share (Detail)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Mar. 19, 2015
Sep. 30, 2015
USD ($)
$ / shares
shares
Sep. 30, 2014
USD ($)
$ / shares
shares
Sep. 30, 2013
USD ($)
$ / shares
shares
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]        
Income allocation - Basic | $ [1]   $ 6,328 $ 5,438 $ 4,980
Dilutive shares of outstanding stock awards included in computation of weighted-average dilutive shares outstanding   6 7 8
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount   2 2 2
Class A common stock        
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]        
Income allocation - Basic | $ [1]   $ 5,044 $ 4,307 $ 3,959
Weighted Average Shares Outstanding - Basic [2]   1,954 1,993 2,080
Earnings per Share - Basic | $ / shares [2]   $ 2.58 $ 2.16 $ 1.90
Income allocation - Diluted | $ [1]   $ 6,328 $ 5,438 $ 4,980
Weighted Average Shares Outstanding - Diluted [2],[3]   2,457 2,523 2,624
Earnings per Share - Diluted | $ / shares [2]   $ 2.58 $ 2.16 $ 1.90
Common stock split, conversion ratio 4      
Class B common stock        
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]        
Income allocation - Basic | $ [1],[4]   $ 1,045 $ 892 $ 786
Weighted Average Shares Outstanding - Basic [2],[4]   245 245 245
Earnings per Share - Basic | $ / shares [2],[4]   $ 4.26 $ 3.63 $ 3.20
Income allocation - Diluted | $ [1],[4]   $ 1,042 $ 890 $ 784
Weighted Average Shares Outstanding - Diluted [2],[4]   245 245 245
Earnings per Share - Diluted | $ / shares [2],[4]   $ 4.25 $ 3.62 $ 3.19
Weighted Average Number Shares Outstanding, As-Converted Basis   405 413 413
Class C common stock        
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]        
Income allocation - Basic | $ [1],[4]   $ 224 $ 222 $ 216
Weighted Average Shares Outstanding - Basic [2],[4]   22 26 28
Earnings per Share - Basic | $ / shares [2],[4]   $ 10.33 $ 8.65 $ 7.61
Income allocation - Diluted | $ [1],[4]   $ 223 $ 221 $ 215
Weighted Average Shares Outstanding - Diluted [2],[4]   22 26 28
Earnings per Share - Diluted | $ / shares [2],[4]   $ 10.30 $ 8.62 $ 7.59
Weighted Average Number Shares Outstanding, As-Converted Basis   87 103 113
Participating Securities        
Schedule of Earnings Per Share, Basic and Diluted, by Common Class, Including Two Class Method [Line Items]        
Income allocation - Basic | $ [1],[5]   $ 15 $ 17 $ 19
Income allocation - Diluted | $ [1],[5]   $ 15 $ 16 $ 19
[1] Net income attributable to Visa Inc. is allocated based on proportional ownership on an as-converted basis. The weighted-average numbers of shares of as-converted class B common stock used in the income allocation were 405 million for fiscal 2015 and 413 million for fiscal 2014 and 2013. The weighted-average number of shares of as-converted class C common stock used in the income allocation was 87 million, 103 million and 113 million for fiscal 2015, 2014 and 2013, respectively.
[2] Figures in the table may not recalculate exactly due to rounding. Earnings per share is calculated based on unrounded numbers. The number of shares and per share amounts for the prior periods presented have been retroactively adjusted to reflect the four-for-one stock split effected in the fiscal second quarter of 2015. See Note 14—Stockholders' Equity.
[3] Weighted-average diluted shares outstanding are calculated on an as-converted basis, and include incremental common stock equivalents, as calculated under the treasury stock method. The computation includes 6 million, 7 million and 8 million common stock equivalents for fiscal 2015, 2014 and 2013, respectively, because their effect would have been dilutive. The computation excludes 2 million of common stock equivalents for fiscal 2015, 2014 and 2013 because their effect would have been anti-dilutive.
[4] The outstanding number of shares of class B and C common stock were not impacted by the stock split as these stockholders received an adjustment to their respective conversion ratios instead of stock dividends. See Note 14—Stockholders' Equity. Weighted-average basic and diluted shares outstanding for class B and C common stock are calculated based on the common shares outstanding of each respective class rather than on an as-converted basis.
[5] Participating securities are unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents, such as the Company's restricted stock awards, restricted stock units and earned performance-based shares.