Visa (V) 10-Q 29 Jul 21 2021 Q3 Quarterly report Financial data

Cover

Cover - shares	9 Months Ended
	Jun. 30, 2021	Jul. 23, 2021
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-33977
Entity Registrant Name	VISA INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	26-0267673
Entity Address, Address Line One	P.O. Box 8999
Entity Address, City or Town	San Francisco,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94128-8999
City Area Code	650
Local Phone Number	432-3200
Title of 12(b) Security	Class A Common Stock, par value $0.0001 per share
Trading Symbol	V
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001403161
Current Fiscal Year End Date	--09-30
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Amendment Flag	false
Class A common stock
Entity Common Stock, Shares Outstanding		1,687,643,027
Class B common stock
Entity Common Stock, Shares Outstanding		245,513,385
Class C common stock
Entity Common Stock, Shares Outstanding		10,188,730

CONSOLIDATED BALANCE SHEETS (UN

CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Jun. 30, 2021	Sep. 30, 2020
Assets
Cash and cash equivalents	$ 18,034	$ 16,289
Restricted cash equivalents—U.S. litigation escrow	894	901
Investment securities	1,206	3,752
Settlement receivable	1,663	1,264
Accounts receivable	1,852	1,618
Customer collateral	2,221	1,850
Current portion of client incentives	1,321	1,214
Prepaid expenses and other current assets	851	757
Total current assets	28,042	27,645
Investment securities	1,111	231
Client incentives	3,219	3,175
Property, equipment and technology, net	2,707	2,737
Goodwill	16,021	15,910
Intangible assets, net	28,023	27,808
Other assets	3,548	3,413
Total assets	82,671	80,919
Liabilities
Accounts payable	172	174
Settlement payable	2,376	1,736
Customer collateral	2,221	1,850
Accrued compensation and benefits	1,044	821
Client incentives	5,114	4,176
Accrued liabilities	2,196	1,840
Current maturities of debt	0	2,999
Accrued litigation	900	914
Total current liabilities	14,023	14,510
Long-term debt	20,996	21,071
Deferred tax liabilities	6,240	5,237
Other liabilities	3,622	3,891
Total liabilities	44,881	44,709
Equity
Right to recover for covered losses	(24)	(39)
Additional paid-in capital	18,787	16,721
Accumulated income	15,294	14,088
Accumulated other comprehensive income (loss), net:
Investment securities	(1)	3
Defined benefit pension and other postretirement plans	(187)	(196)
Derivative instruments	(371)	(291)
Foreign currency translation adjustments	1,160	838
Total accumulated other comprehensive income (loss), net	601	354
Total equity	37,790	36,210
Total liabilities and equity	82,671	80,919
Series A preferred stock
Equity
Preferred stock	538	2,437
Series B preferred stock
Equity
Preferred stock	1,071	1,106
Series C preferred stock
Equity
Preferred stock	1,523	1,543
Class A common stock
Equity
Common stock	0	0
Class B common stock
Equity
Common stock	0	0
Class C common stock
Equity
Common stock	$ 0	$ 0

CONSOLIDATED BALANCE SHEETS (_2

CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - $ / shares shares in Millions	Jun. 30, 2021	Sep. 30, 2020
Preferred Stock
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)	25	25
Preferred stock, shares issued (in shares)	5	5
Preferred stock, shares outstanding (in shares)	5	5
Series A preferred stock
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Series B preferred stock
Preferred stock, shares issued (in shares)	2	2
Preferred stock, shares outstanding (in shares)	2	2
Series C preferred stock
Preferred stock, shares issued (in shares)	3	3
Preferred stock, shares outstanding (in shares)	3	3
Class A common stock
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	2,001,622	2,001,622
Common stock, shares issued (in shares)	1,689	1,683
Common stock, shares outstanding (in shares)	1,689	1,683
Class B common stock
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	622	622
Common stock, shares issued (in shares)	245	245
Common stock, shares outstanding (in shares)	245	245
Class C common stock
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	1,097	1,097
Common stock, shares issued (in shares)	10	11
Common stock, shares outstanding (in shares)	10	11

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net revenues	$ 6,130	$ 4,837	$ 17,546	$ 16,745
Operating Expenses
Personnel	1,098	941	3,193	2,863
Marketing	268	174	679	683
Network and processing	186	172	538	536
Professional fees	108	95	273	304
Depreciation and amortization	204	197	602	571
General and administrative	204	258	770	840
Litigation provision	(2)	1	2	9
Total operating expenses	2,066	1,838	6,057	5,806
Operating income	4,064	2,999	11,489	10,939
Non-operating Income (Expense)
Interest expense, net	(131)	(142)	(388)	(371)
Investment income and other	456	75	664	167
Total non-operating income (expense)	325	(67)	276	(204)
Income before income taxes	4,389	2,932	11,765	10,735
Income tax provision	1,814	559	3,038	2,006
Net income	$ 2,575	$ 2,373	$ 8,727	$ 8,729
Class A common stock
Earnings Per Share
Basic Earnings Per Share (in dollars per share)	$ 1.18	$ 1.07	$ 3.99	$ 3.92
Basic Weighted-average Shares Outstanding (in shares)	1,691	1,690	1,693	1,702
Diluted Earnings Per Share (in dollars per share)	$ 1.18	$ 1.07	$ 3.98	$ 3.92
Diluted Weighted-average Shares Outstanding (in shares)	2,184	2,214	2,192	2,227
Class B common stock
Earnings Per Share
Basic Earnings Per Share (in dollars per share)	$ 1.92	$ 1.74	$ 6.47	$ 6.37
Basic Weighted-average Shares Outstanding (in shares)	245	245	245	245
Diluted Earnings Per Share (in dollars per share)	$ 1.91	$ 1.74	$ 6.46	$ 6.36
Diluted Weighted-average Shares Outstanding (in shares)	245	245	245	245
Class C common stock
Earnings Per Share
Basic Earnings Per Share (in dollars per share)	$ 4.72	$ 4.29	$ 15.94	$ 15.70
Basic Weighted-average Shares Outstanding (in shares)	10	11	11	11
Diluted Earnings Per Share (in dollars per share)	$ 4.72	$ 4.29	$ 15.92	$ 15.68
Diluted Weighted-average Shares Outstanding (in shares)	10	11	11	11

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 2,575	$ 2,373	$ 8,727	$ 8,729
Investment securities:
Net unrealized gain (loss)	(2)	(3)	(4)	2
Income tax effect	1	1	1	0
Reclassification adjustments	(1)	(1)	(1)	(3)
Income tax effect	0	1	0	1
Defined benefit pension and other postretirement plans:
Net unrealized actuarial gain (loss) and prior service credit (cost)	0	0	(3)	2
Income tax effect	0	0	2	(1)
Reclassification adjustments	7	9	13	15
Income tax effect	(2)	(2)	(3)	(3)
Derivative instruments:
Net unrealized gain (loss)	(95)	(106)	(112)	(247)
Income tax effect	22	23	28	54
Reclassification adjustments	14	(43)	1	(58)
Income tax effect	(2)	9	3	13
Foreign currency translation adjustments	287	277	322	621
Other comprehensive income (loss), net of tax	229	165	247	396
Comprehensive income	$ 2,804	$ 2,538	$ 8,974	$ 9,125

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (UNAUDITED) - USD ($) shares in Millions, $ in Millions		Total	Conversion Of Series A Preferred Stock Upon Sale Into Public Market	Cumulative Effect, Period of Adoption, Adjustment	Series B preferred stock	Series C preferred stock	Class A common stock	Preferred Stock	Preferred StockConversion Of Series A Preferred Stock Upon Sale Into Public Market	Preferred StockSeries A preferred stock	[1]	Preferred StockSeries A preferred stockConversion Of Series A Preferred Stock Upon Sale Into Public Market	[1]	Preferred StockSeries B preferred stock	Preferred StockSeries C preferred stock	Common StockClass A common stock	Common StockClass A common stockConversion Of Series A Preferred Stock Upon Sale Into Public Market	Common StockClass A common stockConversion Of Class C Common Stock Upon Sale Into Public Market	Common StockClass B common stock	Common StockClass C common stock	Common StockClass C common stockConversion Of Class C Common Stock Upon Sale Into Public Market		Right to Recover for Covered Losses	Additional Paid-In Capital	Additional Paid-In CapitalConversion Of Series A Preferred Stock Upon Sale Into Public Market	Accumulated Income	Accumulated IncomeCumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss), Net	Accumulated Other Comprehensive Income (Loss), NetCumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new accounting standards		$ 34,684		$ 0				$ 5,462															$ (171)	$ 16,541		$ 13,502	$ 25	$ (650)	$ (25)
Beginning balance (in shares) at Sep. 30, 2019														2	3	1,718			245	11
Beginning balance at Sep. 30, 2019		34,684		0				5,462															(171)	16,541		13,502	25	(650)	$ (25)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		8,729																								8,729
Other comprehensive income (loss), net of tax		396																										396
Comprehensive income		9,125
VE territory covered losses incurred		(22)																					(22)
Recovery through conversion rate adjustment		5			$ 72	$ 92		(164)															169
Conversion of stock (in shares)																		3			0	[1]
Vesting of restricted stock and performance-based shares (in shares)																3
Share-based compensation, net of forfeitures		322																						322
Restricted stock and performance-based shares settled in cash for taxes (in shares)																(1)
Restricted stock and performance-based shares settled in cash for taxes		(158)																						(158)
Cash proceeds from issuance of common stock under employee equity plans (in shares)																1
Cash proceeds from issuance of class A common stock under employee equity plans		142																						142
Cash dividends declared and paid, at a quarterly amount per Class A share		(2,002)																								(2,002)
Repurchase of class A common stock (in shares)							(37)									(37)
Repurchase of class A common stock		(6,572)					$ (6,572)																	(390)		(6,182)
Ending balance (in shares) at Jun. 30, 2020														2	3	1,687			245	11
Ending balance at Jun. 30, 2020		35,524						5,298															(24)	16,457		14,072		(279)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new accounting standards		34,585						5,462															(184)	16,385		13,366		(444)
Beginning balance (in shares) at Mar. 31, 2020														2	3	1,693			245	11
Beginning balance at Mar. 31, 2020		34,585						5,462															(184)	16,385		13,366		(444)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		2,373																								2,373
Other comprehensive income (loss), net of tax		165																										165
Comprehensive income		2,538
VE territory covered losses incurred		(9)																					(9)
Recovery through conversion rate adjustment		5						(164)															169
Vesting of restricted stock and performance-based shares (in shares)	[1]															0
Share-based compensation, net of forfeitures		107																						107
Restricted stock and performance-based shares settled in cash for taxes (in shares)	[1]															0
Restricted stock and performance-based shares settled in cash for taxes		(3)																						(3)
Cash proceeds from issuance of common stock under employee equity plans (in shares)	[1]															0
Cash proceeds from issuance of class A common stock under employee equity plans		33																						33
Cash dividends declared and paid, at a quarterly amount per Class A share		(663)																								(663)
Repurchase of class A common stock (in shares)							(6)									(6)
Repurchase of class A common stock		(1,069)					$ (1,069)																	(65)		(1,004)
Ending balance (in shares) at Jun. 30, 2020														2	3	1,687			245	11
Ending balance at Jun. 30, 2020		35,524						5,298															(24)	16,457		14,072		(279)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new accounting standards		35,524						5,298															(24)	16,457		14,072		(279)
Adoption of new accounting standards		36,210		3				5,086						$ 1,106	$ 1,543								(39)	16,721		14,088	3	354
Beginning balance (in shares) at Sep. 30, 2020										0				2	3	1,683			245	11
Beginning balance at Sep. 30, 2020		36,210		$ 3				5,086						$ 1,106	$ 1,543								(39)	16,721		14,088	$ 3	354
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		8,727																								8,727
Other comprehensive income (loss), net of tax		247																										247
Comprehensive income		8,974
VE territory covered losses incurred		(38)												0	0								(38)
Recovery through conversion rate adjustment		(2)			$ 35	$ 20		(55)						$ (35)	$ (20)								53
Conversion of stock (in shares)												0					28	2			(1)
Conversion of stock			$ 0						$ (1,899)																$ 1,899
Vesting of restricted stock and performance-based shares (in shares)																3
Share-based compensation, net of forfeitures		434																						434
Restricted stock and performance-based shares settled in cash for taxes (in shares)																(1)
Restricted stock and performance-based shares settled in cash for taxes		(142)																						(142)
Cash proceeds from issuance of common stock under employee equity plans (in shares)																1
Cash proceeds from issuance of class A common stock under employee equity plans		162																						162
Cash dividends declared and paid, at a quarterly amount per Class A share		(2,102)																								(2,102)
Repurchase of class A common stock (in shares)							(27)									(27)
Repurchase of class A common stock		(5,709)					$ (5,709)																	(287)		(5,422)
Ending balance (in shares) at Jun. 30, 2021										0				2	3	1,689			245	10
Ending balance at Jun. 30, 2021		37,790						3,132						$ 1,071	$ 1,523								(24)	18,787		15,294		601
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new accounting standards		37,696						3,347															(41)	18,505		15,513		372
Beginning balance (in shares) at Mar. 31, 2021										0				2	3	1,694			245	11
Beginning balance at Mar. 31, 2021		37,696						3,347															(41)	18,505		15,513		372
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		2,575																								2,575
Other comprehensive income (loss), net of tax		229																										229
Comprehensive income		2,804
VE territory covered losses incurred		(21)																					(21)
Recovery through conversion rate adjustment		(2)						(40)															38
Conversion of stock (in shares)												0					3	2			(1)
Conversion of stock			$ 0						$ (175)																$ 175
Vesting of restricted stock and performance-based shares (in shares)	[1]															0
Share-based compensation, net of forfeitures		159																						159
Restricted stock and performance-based shares settled in cash for taxes (in shares)	[1]															0
Restricted stock and performance-based shares settled in cash for taxes		(2)																						(2)
Cash proceeds from issuance of common stock under employee equity plans (in shares)	[1]															0
Cash proceeds from issuance of class A common stock under employee equity plans		54																						54
Cash dividends declared and paid, at a quarterly amount per Class A share		(698)																								(698)
Repurchase of class A common stock (in shares)							(10)									(10)
Repurchase of class A common stock		(2,200)					$ (2,200)																	(104)		(2,096)
Ending balance (in shares) at Jun. 30, 2021										0				2	3	1,689			245	10
Ending balance at Jun. 30, 2021		37,790						3,132						$ 1,071	$ 1,523								(24)	18,787		15,294		601
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adoption of new accounting standards		$ 37,790						$ 3,132						$ 1,071	$ 1,523								$ (24)	$ 18,787		$ 15,294		$ 601
[1]	Increase, decrease or balance is less than one million shares.

CONSOLIDATED STATEMENT OF CHANG

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (UNAUDITED) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Stockholders' Equity [Abstract]
Cash dividends declared and paid, quarterly, per Class A share (in dollars per share)	$ 0.32	$ 0.30	$ 0.32	$ 0.30

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities
Net income	$ 8,727	$ 8,729
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Client incentives	5,980	4,966
Share-based compensation	434	322
Depreciation and amortization of property, equipment, technology and intangible assets	602	571
Deferred income taxes	981	(116)
VE territory covered losses incurred	(38)	(22)
(Gains) losses on equity investments, net	(611)	(62)
Other	(82)	(87)
Change in operating assets and liabilities:
Settlement receivable	(351)	966
Accounts receivable	(220)	108
Client incentives	(5,202)	(6,261)
Other assets	(164)	(464)
Accounts payable	1	7
Settlement payable	574	(1,324)
Accrued and other liabilities	639	1,058
Accrued litigation	(14)	(47)
Net cash provided by (used in) operating activities	11,256	8,344
Investing Activities
Purchases of property, equipment and technology	(497)	(568)
Investment securities:
Purchases	(3,223)	(549)
Proceeds from maturities and sales	5,286	3,675
Acquisitions, net of cash acquired	(75)	(77)
Purchases of / contributions to other investments	(50)	(254)
Other investing activities	105	81
Net cash provided by (used in) investing activities	1,546	2,308
Financing Activities
Repurchase of class A common stock	(5,709)	(6,572)
Repayments of debt	(3,000)	0
Dividends paid	(2,102)	(2,002)
Proceeds from issuance of senior notes	0	3,985
Cash proceeds from issuance of class A common stock under employee equity plans	162	142
Restricted stock and performance-based shares settled in cash for taxes	(142)	(158)
Other financing activities	0	(118)
Net cash provided by (used in) financing activities	(10,791)	(4,723)
Effect of exchange rate changes on cash, cash equivalents, restricted cash and restricted cash equivalents	92	173
Increase (decrease) in cash, cash equivalents, restricted cash and restricted cash equivalents	2,103	6,102
Cash, cash equivalents, restricted cash and restricted cash equivalents at beginning of period	19,171	10,832
Cash, cash equivalents, restricted cash and restricted cash equivalents at end of period	21,274	16,934
Supplemental Disclosure
Cash paid for income taxes, net	2,134	1,793
Interest payments on debt	583	503
Accruals related to purchases of property, equipment and technology	$ 52	$ 34

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 1—Summary of Significant Accounting Policies Organization. Visa Inc. (“Visa” or the “Company”) is a global payments technology company that enables innovative, secure and reliable electronic payments across more than 200 countries and territories. Visa and its wholly-owned consolidated subsidiaries, including Visa U.S.A. Inc. (“Visa U.S.A.”), Visa International Service Association (“Visa International”), Visa Worldwide Pte. Limited, Visa Europe Limited (“Visa Europe”), Visa Canada Corporation (“Visa Canada”), Visa Technology & Operations LLC and CyberSource Corporation, operate one of the world’s largest electronic payments network — VisaNet — which facilitates authorization, clearing and settlement of payment transactions and enables the Company to provide its financial institution and seller clients a wide range of products, platforms and value added services. Visa is not a financial institution and does not issue cards, extend credit or set rates and fees for account holders of Visa products. In most cases, account holder and merchant relationships belong to, and are managed by, Visa’s financial institution clients. Consolidation and basis of presentation. The accompanying unaudited consolidated financial statements include the accounts of Visa and its consolidated entities and are presented in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The Company consolidates its majority-owned and controlled entities, including variable interest entities (“VIEs”) for which the Company is the primary beneficiary. The Company’s investments in VIEs have not been material to its unaudited consolidated financial statements as of and for the periods presented. All significant intercompany accounts and transactions are eliminated in consolidation. The accompanying unaudited consolidated financial statements are presented in accordance with the U.S. Securities and Exchange Commission (“SEC”) requirements for Quarterly Reports on Form 10-Q and, consequently, do not include all of the annual disclosures required by U.S. GAAP. Reference should be made to the Visa Annual Report on Form 10-K for the year ended September 30, 2020 for additional disclosures, including a summary of the Company’s significant accounting policies. In the opinion of management, the accompanying unaudited consolidated financial statements include all normal recurring adjustments necessary for a fair presentation of the Company’s financial position, results of operations and cash flows for the interim periods presented. Use of estimates. The preparation of the accompanying unaudited consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions about future events. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited consolidated financial statements and reported amounts of revenues and expenses during the reporting period. These estimates may change, as new events occur and additional information is obtained, and will be recognized in the unaudited consolidated financial statements in the period in which such changes occur. Future actual results could differ materially from these estimates. Coronavirus (“COVID-19”) has continued to create significant uncertainty in the global economy. There have been no comparable recent events that provide guidance as to the effect COVID-19 as a global pandemic may have, and, as a result, the ultimate impact of COVID-19 and the extent to which COVID-19 continues to impact the Company’s business, results of operations and financial condition will depend on future developments, which are highly uncertain and difficult to predict. Recently Adopted Accounting Pronouncements In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Board Update (“ASU”) 2016-13, which requires the measurement and recognition of expected credit losses for financial assets and certain other instruments held at amortized cost. The Company adopted the standard effective October 1, 2020 using the modified retrospective transition method with comparative periods continuing to be reported using the previous applicable guidance. The adoption did not have a material impact on the consolidated financial statements. In accordance with ASU 2016-13, the Company uses a forward-looking expected credit loss model for financial instruments measured at amortized cost. For available-for-sale debt securities, when credit loss indicators exist and a discounted cash flow approach results in a credit loss, the credit loss will be recorded through an allowance rather than through an other-than-temporary impairment. In addition to recording the fair value of its settlement indemnification liability, under the new standard, the Company estimates expected credit losses and recognizes an allowance for those credit losses related to its settlement indemnification obligations. In January 2017, the FASB issued ASU 2017-04, which simplifies the accounting for goodwill impairments by eliminating Step 2 from the goodwill impairment test. Under the amendments in ASU 2017-04, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of the reporting unit with its carrying amount, which is Step 1 of the goodwill impairment test. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value, not to exceed the total amount of goodwill allocated to that reporting unit. The Company adopted the standard effective October 1, 2020. The adoption had no impact on the consolidated financial statements.

Acquisitions

Acquisitions	9 Months Ended
	Jun. 30, 2021
Business Combination and Asset Acquisition [Abstract]
Acquisitions	Note 2—Acquisitions Terminated Acquisition On January 12, 2021, Visa and Plaid Inc. mutually terminated their merger agreement announced on January 13, 2020. See Note 13—Legal Matters . Pending Acquisitions On June 24, 2021, Visa entered into a definitive agreement to acquire Tink AB (“Tink”) for €1.8 billion, inclusive of cash and retention incentives. Tink is a European open banking platform that enables financial institutions, fintechs and merchants to build tailored financial management tools, products and services for European consumers and businesses based on their financial data. This acquisition is subject to customary closing conditions, including regulatory reviews and approvals. On July 22, 2021, Visa entered into a definitive agreement to acquire The Currency Cloud Group Limited (“Currencycloud”), a UK-based global platform that enables banks and fintechs to provide innovative foreign exchange solutions for cross-border payments. The acquisition values Currencycloud at £700 million, inclusive of cash and retention incentives. The financial consideration will be reduced by the outstanding equity of Currencycloud that Visa already owns. This acquisition is subject to customary closing conditions, including regulatory reviews and approvals.

Revenues

Revenues	9 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenues	Note 3—Revenues The nature, amount, timing and uncertainty of the Company’s revenues and cash flows and how they are affected by economic factors are most appropriately depicted through the Company’s revenue categories and geographical markets. The following tables disaggregate the Company’s net revenues by revenue category and by geography for the three and nine months ended June 30, 2021 and 2020: Three Months Ended Nine Months Ended 2021 2020 2021 2020 (in millions) Service revenues $ 2,828 $ 2,409 $ 8,350 $ 7,587 Data processing revenues 3,327 2,525 9,356 8,100 International transaction revenues 1,696 1,102 4,635 4,953 Other revenues 409 314 1,185 1,071 Client incentives (2,130) (1,513) (5,980) (4,966) Net revenues $ 6,130 $ 4,837 $ 17,546 $ 16,745 Three Months Ended Nine Months Ended 2021 2020 2021 2020 (in millions) U.S. $ 2,806 $ 2,380 $ 8,156 $ 7,747 International 3,324 2,457 9,390 8,998 Net revenues $ 6,130 $ 4,837 $ 17,546 $ 16,745 At June 30, 2021 and September 30, 2020, deferred revenue included in accrued liabilities on the consolidated balance sheets was $696 million and $533 million, respectively.

Cash, Cash Equivalents, Restric

Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	9 Months Ended
	Jun. 30, 2021
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	Note 4—Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents The Company reconciles cash, cash equivalents, restricted cash and restricted cash equivalents reported in the consolidated balance sheets that aggregate to the beginning and ending balances shown in the consolidated statements of cash flows as follows: June 30, September 30, (in millions) Cash and cash equivalents $ 18,034 $ 16,289 Restricted cash and restricted cash equivalents: U.S. litigation escrow 894 901 Customer collateral 2,221 1,850 Prepaid expenses and other current assets 125 131 Cash, cash equivalents, restricted cash and restricted cash equivalents $ 21,274 $ 19,171

U.S. and Europe Retrospective R

U.S. and Europe Retrospective Responsibility Plans	9 Months Ended
	Jun. 30, 2021
Retrospective Responsibility Plan [Abstract]
U.S. and Europe Retrospective Responsibility Plans	Note 5—U.S. and Europe Retrospective Responsibility Plans U.S. Retrospective Responsibility Plan Under the terms of the U.S. retrospective responsibility plan, the Company maintains an escrow account from which settlements of, or judgments in, certain litigation referred to as the “U.S. covered litigation” are paid. The escrow funds are held in money market investments along with interest income earned, less applicable taxes, and are classified as restricted cash equivalents on the consolidated balance sheets. The accrual related to the U.S. covered litigation could be either higher or lower than the U.S. litigation escrow account balance. See Note 13—Legal Matters . The following table sets forth the changes in the restricted cash equivalents—U.S. litigation escrow account: Nine Months Ended 2021 2020 (in millions) Balance at beginning of period $ 901 $ 1,205 Return of takedown payment to the litigation escrow account — 467 Payments to opt-out merchants (1) and interest earned on escrow funds (7) (524) Balance at end of period $ 894 $ 1,148 (1) These payments are associated with the Interchange Multidistrict Litigation. See Note 13—Legal Matters . Europe Retrospective Responsibility Plan Visa Inc., Visa International and Visa Europe are parties to certain existing and potential litigation relating to the setting of multilateral interchange fee rates in the Visa Europe territory (the “VE territory covered litigation”). Under the terms of the Europe retrospective responsibility plan, the Company is entitled to recover certain losses resulting from VE territory covered litigation (the “VE territory covered losses”) through a periodic adjustment to the class A common stock conversion rates applicable to the UK&I and Europe preferred stock. VE territory covered losses are recorded in “right to recover for covered losses” within stockholders’ equity before the corresponding adjustment to the applicable conversion rate is effected. Adjustments to the conversion rate may be executed once in any six-month period unless a single, individual loss greater than €20 million is incurred, in which case, the six-month limitation does not apply. When the adjustment to the conversion rate is made, the amount previously recorded in “right to recover for covered losses” as contra-equity is then recorded against the book value of the preferred stock within stockholders’ equity. During the three and nine months ended June 30, 2021, the Company recovered $40 million and $55 million, respectively, of VE territory covered losses through adjustments to the class A common stock conversion rates applicable to the UK&I and Europe preferred stock. The following table sets forth the activities related to VE territory covered losses in preferred stock and “right to recover for covered losses” within stockholders’ equity during the nine months ended June 30, 2021: Preferred Stock Right to Recover for Covered Losses UK&I Europe (in millions) Balance as of September 30, 2020 $ 1,106 $ 1,543 $ (39) VE territory covered losses incurred (1) — — (38) Recovery through conversion rate adjustment (2) (35) (20) 53 Balance as of June 30, 2021 $ 1,071 $ 1,523 $ (24) (1) VE territory covered losses incurred reflect settlements with merchants and additional legal costs. See Note 13—Legal Matters . (2) Adjustment to right to recover for covered losses for the conversion rate adjustment differs from the actual recovered amount due to differences in foreign exchange rates between the time the losses were incurred and the subsequent recovery through the conversion rate adjustment. The following table sets forth the as-converted value of the preferred stock available to recover VE territory covered losses compared to the book value of preferred stock recorded in stockholders’ equity within the Company’s consolidated balance sheets as of June 30, 2021 and September 30, 2020: June 30, 2021 September 30, 2020 As-converted Value of Preferred Stock (1),(2) Book Value of Preferred Stock (1) As-converted Value of Preferred Stock (1),(3) Book Value of Preferred Stock (1) (in millions) UK&I preferred stock $ 3,666 $ 1,071 $ 3,168 $ 1,106 Europe preferred stock 5,044 1,523 4,331 1,543 Total 8,710 2,594 7,499 2,649 Less: right to recover for covered losses (24) (24) (39) (39) Total recovery for covered losses available $ 8,686 $ 2,570 $ 7,460 $ 2,610 (1) Figures in the table may not recalculate exactly due to rounding. As-converted and book values are based on unrounded numbers. (2) As of June 30, 2021, the as-converted value of preferred stock is calculated as the product of: (a) 2 million and 3 million shares of the UK&I and Europe preferred stock outstanding, respectively; (b) 6.321 and 6.834, the class A common stock conversion rate applicable to the UK&I and Europe preferred stock, respectively; and (c) $233.82, Visa’s class A common stock closing stock price. (3) As of September 30, 2020, the as-converted value of preferred stock is calculated as the product of: (a) 2 million and 3 million shares of the UK&I and Europe preferred stock outstanding, respectively; (b) 6.387 and 6.861, the class A common stock conversion rate applicable to the UK&I and Europe preferred stock respectively; and (c) $199.97, Visa’s class A common stock closing stock price.

Fair Value Measurements and Inv

Fair Value Measurements and Investments	9 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements and Investments	Note 6—Fair Value Measurements and Investments Assets and Liabilities Measured at Fair Value on a Recurring Basis Fair Value Measurements Level 1 Level 2 June 30, September 30, June 30, September 30, (in millions) Assets Cash equivalents and restricted cash equivalents: Money market funds $ 14,830 $ 12,522 $ — $ — U.S. government-sponsored debt securities — — 600 1,469 U.S. Treasury securities 750 650 — — Investment securities: Marketable equity securities 550 148 — — U.S. government-sponsored debt securities — — 486 2,582 U.S. Treasury securities 1,271 1,253 — — Other current and non-current assets: Money market funds 3 — — — Derivative instruments — — 389 512 Total $ 17,404 $ 14,573 $ 1,475 $ 4,563 Liabilities Accrued compensation and benefits: Deferred compensation liability $ 168 $ 135 $ — $ — Accrued and other liabilities: Derivative instruments — — 216 181 Total $ 168 $ 135 $ 216 $ 181 Level 1 assets. Money market funds, marketable equity securities and U.S. Treasury securities are classified as Level 1 within the fair value hierarchy, as fair value is based on unadjusted quoted prices in active markets for identical assets and liabilities. The Company’s deferred compensation liability is measured at fair value based on marketable equity securities held under the deferred compensation plan. Level 2 assets and liabilities. The fair value of U.S. government-sponsored debt securities, as provided by third-party pricing vendors, is based on quoted prices in active markets for similar, not identical, assets. Derivative instruments are valued using inputs that are observable in the market or can be derived principally from or corroborated by observable market data. U.S. government-sponsored debt securities and U.S. Treasury securities. As of June 30, 2021 and September 30, 2020, the Company held $1.8 billion and $3.8 billion of these available-for-sale investment securities, respectively. All of the Company’s long-term available-for-sale investment securities are due within one Assets Measured at Fair Value on a Non-recurring Basis Non-marketable equity securities. The Company’s non-marketable equity securities are investments in privately held companies without readily determinable market values. These investments are classified as Level 3 due to the absence of quoted market prices, the inherent lack of liquidity and the fact that inputs used to measure fair value are unobservable and require management’s judgment. The following table summarizes the total carrying value of the Company’s non-marketable equity securities held as of June 30, 2021 including cumulative unrealized gains and losses: June 30, (in millions) Initial cost basis $ 857 Adjustments: Upward adjustments 446 Downward adjustments (including impairment) (13) Carrying amount, end of period $ 1,290 During the three and nine months ended June 30, 2021 and 2020, unrealized gains and losses included in the carrying value of the Company’s non-marketable equity securities still held as of June 30, 2021 and 2020 were as follows: Three Months Ended Nine Months Ended 2021 2020 2021 2020 (in millions) Upward adjustments $ 180 $ 56 $ 323 $ 65 Downward adjustments (including impairment) $ — $ (6) $ (2) $ (6) The Company recognized net unrealized gains on marketable and non-marketable equity securities still held as of quarter end of $434 million and $68 million for the three months ended June 30, 2021 and 2020, respectively, and $610 million and $59 million for the nine months ended June 30, 2021 and 2020, respectively. Non-financial assets and liabilities. Long-lived assets such as goodwill, indefinite-lived intangible assets, finite-lived intangible assets and property, equipment and technology are considered non-financial assets. The Company does not have any non-financial liabilities measured at fair value on a non-recurring basis. Finite-lived intangible assets primarily consist of customer relationships and trade names, all of which were obtained through acquisitions. If the Company were required to perform a quantitative assessment for impairment testing of goodwill and indefinite-lived intangible assets, the fair values would generally be estimated using an income approach. As the assumptions employed to measure these assets on a non-recurring basis are based on management’s judgment using internal and external data, these fair value determinations are classified as Level 3 in the fair value hierarchy. The Company completed its annual impairment review of its indefinite-lived intangible assets and goodwill as of February 1, 2021, and concluded that there was no impairment. No recent events or changes in circumstances indicate that impairment existed at June 30, 2021. Other Fair Value Disclosures Debt. Debt instruments are measured at amortized cost on the Company’s unaudited consolidated balance sheets. The fair value of the debt instruments, as provided by third-party pricing vendors, is based on quoted prices in active markets for similar, not identical, assets. If measured at fair value in the financial statements, these instruments would be classified as Level 2 in the fair value hierarchy. As of June 30, 2021, the carrying value and estimated fair value of debt was $21.0 billion and $22.9 billion, respectively. As of September 30, 2020, the carrying value and estimated fair value of debt was $24.1 billion and $26.6 billion, respectively. Other financial instruments not measured at fair value. The following financial instruments are not measured at fair value on the Company’s unaudited consolidated balance sheet at June 30, 2021, but disclosure of their fair values is required: settlement receivable and payable and customer collateral. The estimated fair value of such instruments at June 30, 2021 approximates their carrying value due to their generally short maturities. If measured at fair value in the financial statements, these financial instruments would be classified as Level 2 in the fair value hierarchy.

Debt

Debt	9 Months Ended
	Jun. 30, 2021
Debt Disclosure [Abstract]
Debt	Note 7—Debt The Company had outstanding debt as follows: June 30, September 30, Effective Interest Rate (1) (in millions, except percentages) 2.20% Senior Notes due December 2020 $ — $ 3,000 2.30 % 2.15% Senior Notes due September 2022 1,000 1,000 2.30 % 2.80% Senior Notes due December 2022 2,250 2,250 2.89 % 3.15% Senior Notes due December 2025 4,000 4,000 3.26 % 1.90% Senior Notes due April 2027 1,500 1,500 2.02 % 0.75% Senior Notes due August 2027 500 500 0.84 % 2.75% Senior Notes due September 2027 750 750 2.91 % 2.05% Senior Notes due April 2030 1,500 1,500 2.13 % 1.10% Senior Notes due February 2031 1,000 1,000 1.20 % 4.15% Senior Notes due December 2035 1,500 1,500 4.23 % 2.70% Senior Notes due April 2040 1,000 1,000 2.80 % 4.30% Senior Notes due December 2045 3,500 3,500 4.37 % 3.65% Senior Notes due September 2047 750 750 3.73 % 2.00% Senior Notes due August 2050 1,750 1,750 2.09 % Total debt 21,000 24,000 Unamortized discounts and debt issuance costs (165) (178) Hedge accounting fair value adjustments (2) 161 248 Total carrying value of debt $ 20,996 $ 24,070 Reported as: Current maturities of debt $ — $ 2,999 Long-term debt 20,996 21,071 Total carrying value of debt $ 20,996 $ 24,070 (1) Effective interest rates disclosed do not reflect hedge accounting adjustments. (2) Represents the change in fair value of interest rate swap agreements entered into on a portion of outstanding senior notes. Senior Notes During the nine months ended June 30, 2021, the Company repaid $3.0 billion of principal upon maturity of its senior notes due December 14, 2020.

Settlement Guarantee Management

Settlement Guarantee Management	9 Months Ended
	Jun. 30, 2021
Settlement Guarantee Management [Abstract]
Settlement Guarantee Management	Note 8—Settlement Guarantee Management The Company indemnifies its clients for settlement losses suffered due to failure of any other client to fund its settlement obligations in accordance with the Visa operating rules. This indemnification creates settlement risk for the Company due to the difference in timing between the date of a payment transaction and the date of subsequent settlement. Historically, the Company has experienced minimal losses as a result of its settlement risk guarantee. However, the Company’s future obligations, which could be material under its guarantees, are not determinable as they are dependent upon future events. The Company’s settlement exposure is limited to the amount of unsettled Visa payment transactions at any point in time, which vary significantly day to day. During the nine months ended June 30, 2021, the Company’s maximum daily settlement exposure was $104.1 billion and the average daily settlement exposure was $63.9 billion. The Company maintains and regularly reviews global settlement risk policies and procedures to manage settlement exposure, which may require clients to post collateral if certain credit standards are not met. At June 30, 2021 and September 30, 2020, the Company held the following collateral to manage settlement exposure: June 30, September 30, (in millions) Restricted cash and restricted cash equivalents $ 2,221 $ 1,850 Pledged securities at market value 253 228 Letters of credit 1,402 1,306 Guarantees 729 717 Total $ 4,605 $ 4,101

Stockholders' Equity

Stockholders' Equity	9 Months Ended
	Jun. 30, 2021
Stockholders' Equity Note [Abstract]
Stockholders' Equity	Note 9—Stockholders’ Equity As-converted class A common stock. The number of shares of each series and class, and the number of shares of class A common stock on an as-converted basis were as follows: June 30, 2021 September 30, 2020 Shares Conversion Rate Into As-converted Class A Common Stock (1) Shares Conversion Rate Into As-converted Class A Common Stock (1) (in millions, except conversion rates) Series A preferred stock — (2) 100.0000 8 — (2) 100.0000 35 UK&I preferred stock 2 6.3210 16 2 6.3870 16 Europe preferred stock 3 6.8340 22 3 6.8610 22 Class A common stock (3) 1,689 — 1,689 1,683 — 1,683 Class B common stock 245 1.6228 (4) 398 245 1.6228 (4) 398 Class C common stock 10 4.0000 41 11 4.0000 43 Total 2,174 2,197 (1) Figures in the table may not recalculate exactly due to rounding. As-converted class A common stock is calculated based on unrounded numbers. (2) The number of shares outstanding was less than one million. (3) Class A common stock shares outstanding reflect repurchases that settled on or before June 30, 2021 and September 30, 2020, respectively. (4) The class B to class A common stock conversion rate is presented on a rounded basis. Conversion calculations for dividend payments are based on a conversion rate rounded to the tenth decimal. Reduction in as-converted shares. Under the terms of the Europe retrospective responsibility plan, the Company is entitled to recover VE territory covered losses through periodic adjustments to the class A common stock conversion rates applicable to the UK&I and Europe preferred stock. The recovery has the same economic effect on earnings per share as repurchasing the Company’s class A common stock, because it reduces the UK&I and Europe preferred stock conversion rates and consequently, reduces the as-converted class A common stock share count. The following table presents the reduction in as-converted UK&I and Europe preferred stock after the Company recovered VE territory covered losses through conversion rate adjustments in the nine months ended June 30, 2021 and 2020: Nine Months Ended Nine Months Ended UK&I Europe UK&I Europe (in millions, except per share data) Reduction in equivalent number of as-converted shares of class A common stock — (1) — (1) — (1) 1 Effective price per share (2) $ 220.84 $ 220.71 $ 180.00 $ 180.00 Recovery through conversion rate adjustment $ 35 $ 20 $ 72 $ 92 (1) The reduction in equivalent number of shares of class A common stock was less than one million shares. (2) Effective price per share for the quarter is calculated using the volume-weighted average price of the Company’s class A common stock over a pricing period in accordance with the Company’s current certificates of designations for its series B and C convertible participating preferred stock. Effective price per share is calculated using the weighted-average effective prices of the respective adjustments made during the year. Common stock repurchases. The following table presents share repurchases in the open market for the following periods: Three Months Ended Nine Months Ended 2021 2020 2021 2020 (in millions, except per share data) Shares repurchased in the open market (1) 10 6 27 37 Average repurchase price per share (2) $ 227.11 $ 177.86 $ 213.02 $ 179.91 Total cost (2) $ 2,200 $ 1,069 $ 5,709 $ 6,572 (1) Shares repurchased in the open market reflect repurchases that settled during the three and nine months ended June 30, 2021 and 2020, respectively. All shares repurchased in the open market have been retired and constitute authorized but unissued shares. (2) Figures in the table may not recalculate exactly due to rounding. Average repurchase price per share and total cost is calculated based on unrounded numbers. In January 2020, the Company’s board of directors authorized a $9.5 billion share repurchase program and in January 2021, authorized an additional $8.0 billion share repurchase program (the “January 2021 Program”). These authorizations have no expiration date. As of June 30, 2021, the Company’s repurchase program had remaining authorized funds of $7.8 billion. All share repurchase programs authorized prior to the January 2021 Program have been completed. Dividends. On July 23, 2021, the Company’s board of directors declared a quarterly cash dividend of $0.32 per share of class A common stock (determined in the case of class B and C common stock and series A, UK&I and Europe preferred stock on an as-converted basis), which will be paid on September 1, 2021, to all holders of record as of August 13, 2021. The Company declared and paid dividends of $698 million and $663 million during the three months ended June 30, 2021 and 2020, respectively, and $2.1 billion and $2.0 billion during the nine months ended June 30, 2021 and 2020, respectively.

Earnings Per Share

Earnings Per Share	9 Months Ended
	Jun. 30, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Note 10—Earnings Per Share Basic earnings per share is computed by dividing net income available to each class of shares by the weighted-average number of shares of common stock outstanding and participating securities during the period. Net income is allocated to each class of common stock and participating securities based on its proportional ownership on an as-converted basis. The weighted-average number of shares outstanding of each class of common stock reflects changes in ownership over the periods presented. See Note 9—Stockholders’ Equity . Diluted earnings per share is computed by dividing net income available by the weighted-average number of shares of common stock outstanding, participating securities and, if dilutive, potential class A common stock equivalent shares outstanding during the period. Dilutive class A common stock equivalents may consist of: (1) shares of class A common stock issuable upon the conversion of series A, UK&I and Europe preferred stock and class B and C common stock based on the conversion rates in effect through the period, and (2) incremental shares of class A common stock calculated by applying the treasury stock method to the assumed exercise of employee stock options, the assumed purchase of stock under the Company’s Employee Stock Purchase Plan and the assumed vesting of unearned performance shares. The following table presents earnings per share for the three months ended June 30, 2021: Basic Earnings Per Share Diluted Earnings Per Share Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) (in millions, except per share data) Class A common stock $ 1,996 1,691 $ 1.18 $ 2,575 2,184 (3) $ 1.18 Class B common stock 470 245 $ 1.92 $ 470 245 $ 1.91 Class C common stock 49 10 $ 4.72 $ 49 10 $ 4.72 Participating securities (4) 60 Not presented Not presented $ 60 Not presented Not presented Net income $ 2,575 The following table presents earnings per share for the nine months ended June 30, 2021: Basic Earnings Per Share Diluted Earnings Per Share Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) (in millions, except per share data) Class A common stock $ 6,748 1,693 $ 3.99 $ 8,727 2,192 (3) $ 3.98 Class B common stock 1,588 245 $ 6.47 $ 1,586 245 $ 6.46 Class C common stock 169 11 $ 15.94 $ 169 11 $ 15.92 Participating securities (4) 222 Not presented Not presented $ 221 Not presented Not presented Net income $ 8,727 The following table presents earnings per share for the three months ended June 30, 2020: Basic Earnings Per Share Diluted Earnings Per Share Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) (in millions, except per share data) Class A common stock $ 1,814 1,690 $ 1.07 $ 2,373 2,214 (3) $ 1.07 Class B common stock 428 245 $ 1.74 $ 427 245 $ 1.74 Class C common stock 46 11 $ 4.29 $ 47 11 $ 4.29 Participating securities (4) 85 Not presented Not presented $ 85 Not presented Not presented Net income $ 2,373 The following table presents earnings per share for the nine months ended June 30, 2020: Basic Earnings Per Share Diluted Earnings Per Share Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) (in millions, except per share data) Class A common stock $ 6,679 1,702 $ 3.92 $ 8,729 2,227 (3) $ 3.92 Class B common stock 1,564 245 $ 6.37 $ 1,561 245 $ 6.36 Class C common stock 172 11 $ 15.70 $ 172 11 $ 15.68 Participating securities (4) 314 Not presented Not presented $ 314 Not presented Not presented Net income $ 8,729 (1) Net income is allocated based on proportional ownership on an as-converted basis. The weighted-average number of shares of as-converted class B common stock used in the income allocation was 398 million for the three and nine months ended June 30, 2021 and 2020. The weighted-average number of shares of as-converted class C common stock used in the income allocation was 42 million for the three and nine months ended June 30, 2021 and 43 million and 44 million for the three and nine months ended June 30, 2020, respectively. The weighted-average number of shares of preferred stock included within participating securities was 9 million and 14 million of as-converted series A preferred stock for the three and nine months ended June 30, 2021, respectively, 16 million and 32 million of as-converted UK&I preferred stock for the three and nine months ended June 30, 2021 and 2020, respectively, and 22 million and 44 million of as-converted Europe preferred stock for the three and nine months ended June 30, 2021 and 2020, respectively. (2) Figures in the table may not recalculate exactly due to rounding. Earnings per share is calculated based on unrounded numbers. (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 common stock equivalents of 3 million for the three and nine months ended June 30, 2021 and 2020 because their effect would have been dilutive. The computation excludes common stock equivalents of less than 1 million for the three and nine months ended June 30, 2021 and 1 million for the three and nine months ended June 30, 2020, because their effect would have been anti-dilutive. (4) Participating securities include preferred stock outstanding and unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents, such as the Company’s series A preferred stock, UK&I and Europe preferred stock and restricted stock units. Participating securities’ income is allocated based on the weighted-average number of shares of as-converted stock.

Share-based Compensation

Share-based Compensation	9 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract]
Share-based Compensation	Note 11—Share-based Compensation The Company granted the following equity awards to employees and non-employee directors under the 2007 Equity Incentive Compensation Plan, or the EIP, during the nine months ended June 30, 2021: Granted Weighted-Average Grant Date Fair Value Weighted-Average Exercise Price Non-qualified stock options 1,022,430 $ 39.51 $ 207.57 Restricted stock units 2,395,264 $ 208.05 Performance-based shares (1) 432,714 $ 229.81 (1) Represents the maximum number of performance-based shares which could be earned. Related to the EIP, the Company recorded share-based compensation cost, net of estimated forfeitures, of $153 million and $102 million for the three months ended June 30, 2021 and 2020, respectively, and $417 million and $306 million for the nine months ended June 30, 2021 and 2020, respectively. On January 26, 2021, the EIP was amended to extend the termination date from January 31, 2022 to January 26, 2031 and reduce the number of shares authorized for grant from 236 million to 198 million. Additionally, shares available for grant may be either unissued or previously issued shares subsequently acquired by the Company, except that shares withheld for taxes, or shares used to pay the exercise or purchase price of an award, shall not again be available for future grant.

Income Taxes

Income Taxes	9 Months Ended
	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Note 12—Income Taxes The effective income tax rates were 41% and 26% for the three and nine months ended June 30, 2021, respectively, and 19% for the three and nine months ended June 30, 2020. The effective tax rates for the three and nine months ended June 30, 2021 differ from the effective tax rates for the same periods in the prior year primarily due to the following: • during the three months ended June 30, 2021, a $1.0 billion non-recurring, non-cash tax expense related to the remeasurement of UK deferred tax liabilities, as discussed below; • during the three months ended June 30, 2021, a $51 million tax benefit as a result of a tax position taken on certain expenses; and • during the nine months ended June 30, 2021, $147 million of tax benefits as a result of the conclusion of audits by taxing authorities. On June 10, 2021, the UK enacted legislation that will increase the tax rate from 19% to 25%, effective April 1, 2023. As a result, the Company recorded a non-recurring, non-cash tax expense related to the remeasurement of its net UK deferred tax liabilities, primarily related to intangibles recorded upon the acquisition of Visa Europe in fiscal 2016. During the three months ended June 30, 2021, the Company’s gross and net unrecognized tax benefits increased by $80 million and $39 million, respectively. During the nine months ended June 30, 2021, the Company’s gross and net unrecognized tax benefits decreased by $37 million and $137 million, respectively. The change in unrecognized tax benefits is related to various tax positions across several jurisdictions. Additionally, for the nine month period, the decrease in unrecognized tax benefits is primarily due to the recognition of previously unrecognized tax benefits as a result of the conclusion of audits by taxing authorities, partially offset by increases in gross timing differences. During the three and nine months ended June 30, 2021, there were no significant changes in accrued interest related to uncertain tax positions. During the three and nine months ended June 30, 2020, the Company’s accrued interest related to uncertain tax positions increased by $18 million and $56 million, respectively. The Company’s tax filings are subject to examination by U.S. federal, state and foreign taxing authorities. The timing and outcome of the final resolutions of the various ongoing income tax examinations are highly uncertain. It is not reasonably possible to estimate the increase or decrease in unrecognized tax benefits within the next twelve months. In September 2020, the Company accepted a settlement offer related to the examination of Canadian tax returns dating back to fiscal 2003, which was subject to approval by the Tax Court of Canada. On January 21, 2021, the Tax Court of Canada approved the settlement agreement related to the examination. The Company’s income tax provision was adjusted to reflect the estimated impact of the settlement in fiscal 2020. The American Rescue Plan Act of 2021 (the “ARP Act”) was enacted in the U.S. on March 11, 2021. The ARP Act is not expected to have a material impact on the Company’s financial results.

Legal Matters

Legal Matters	9 Months Ended
	Jun. 30, 2021
Legal Matters [Abstract]
Legal Matters	Note 13—Legal Matters The Company is party to various legal and regulatory proceedings. Some of these proceedings involve complex claims that are subject to substantial uncertainties and unascertainable damages. Accordingly, except as disclosed, the Company has not established reserves or ranges of possible loss related to these proceedings, as at this time in the proceedings, the matters do not relate to a probable loss and/or the amount or range of losses are not reasonably estimable. Although the Company believes that it has strong defenses for the litigation and regulatory proceedings described below, it could, in the future, incur judgments or fines or enter into settlements of claims that could have a material adverse effect on the Company’s financial position, results of operations or cash flows. From time to time, the Company may engage in settlement discussions or mediations with respect to one or more of its outstanding litigation matters, either on its own behalf or collectively with other parties. The litigation accrual is an estimate and is based on management’s understanding of the Company’s litigation profile, the specifics of each case, advice of counsel to the extent appropriate and management’s best estimate of incurred loss as of the balance sheet date. The following table summarizes the activity related to accrued litigation: Nine Months Ended 2021 2020 (in millions) Balance at beginning of period $ 914 $ 1,203 Provision for uncovered legal matters 5 7 Provision for covered legal matters 23 14 Reestablishment of prior accrual related to interchange multidistrict litigation — 467 Payments for legal matters (42) (535) Balance at end of period $ 900 $ 1,156 Accrual Summary—U.S. Covered Litigation Visa Inc., Visa U.S.A. and Visa International are parties to certain legal proceedings that are covered by the U.S. retrospective responsibility plan, which the Company refers to as the U.S. covered litigation. An accrual for the U.S. covered litigation and a charge to the litigation provision are recorded when a loss is deemed to be probable and reasonably estimable. In making this determination, the Company evaluates available information, including but not limited to actions taken by the Company’s litigation committee. The total accrual related to the U.S. covered litigation could be either higher or lower than the escrow account balance. See further discussion below under U.S. Covered Litigation and Note 5—U.S. and Europe Retrospective Responsibility Plans. The following table summarizes the accrual activity related to U.S. covered litigation: Nine Months Ended 2021 2020 (in millions) Balance at beginning of period $ 888 $ 1,198 Reestablishment of prior accrual related to interchange multidistrict litigation — 467 Payments for U.S. covered litigation (7) (529) Balance at end of period $ 881 $ 1,136 Accrual Summary—VE Territory Covered Litigation Visa Inc., Visa International and Visa Europe are parties to certain legal proceedings that are covered by the Europe retrospective responsibility plan. Unlike the U.S. retrospective responsibility plan, the Europe retrospective responsibility plan does not have an escrow account that is used to fund settlements or judgments. The Company is entitled to recover VE territory covered losses through periodic adjustments to the conversion rates applicable to the UK&I preferred stock and Europe preferred stock. An accrual for the VE territory covered losses and a reduction to stockholders’ equity will be recorded when the loss is deemed to be probable and reasonably estimable. See further discussion below under VE Territory Covered Litigation and Note 5—U.S. and Europe Retrospective Responsibility Plans . The following table summarizes the accrual activity related to VE territory covered litigation: Nine Months Ended 2021 2020 (in millions) Balance at beginning of period $ 21 $ 5 Provision for VE territory covered litigation 23 14 Payments for VE territory covered litigation (29) (5) Balance at end of period $ 15 $ 14 U.S. Covered Litigation Interchange Multidistrict Litigation (MDL) – Putative Class Actions On December 18, 2020, the plaintiffs purporting to act on behalf of the putative Injunctive Relief Class moved for class certification. On April 28, 2021, a complaint was filed by Hayley Lanning and others, and on June 16, 2021, a complaint was filed by Camp Grounds Coffee and others, each against Visa and Mastercard on behalf of a purported class of merchants located in 25 states and the District of Columbia who have taken payment using the Square card acceptance service. The complaints allege violations of the antitrust laws of those jurisdictions and seek recovery for plaintiffs as indirect purchasers. To the extent that those plaintiffs’ claims are not released by the Amended Settlement Agreement, Visa believes they are covered by the U.S. Retrospective Responsibility Plan. Interchange Multidistrict Litigation (MDL) - Individual Merchant Actions Visa has reached settlements with a number of merchants representing approximately 40% of the Visa-branded payment card sales volume of merchants who opted out of the Amended Settlement Agreement with the Damages Class plaintiffs. VE Territory Covered Litigation Europe Merchant Litigation Since July 2013, in excess of 700 Merchants (the capitalized term “Merchant,” when used in this section, means a merchant together with subsidiary/affiliate companies that are party to the same claim) have commenced proceedings against Visa Europe, Visa Inc. and other Visa subsidiaries in the UK, Belgium and Poland primarily relating to interchange rates in Europe and in some cases relating to fees charged by Visa and certain Visa rules. As of the filing date, Visa Europe, Visa Inc. and other Visa subsidiaries have settled the claims asserted by over 100 Merchants, leaving more than 550 Merchants with outstanding claims. In addition, over 30 additional Merchants have threatened to commence similar proceedings. Standstill agreements have been entered into with respect to some of those threatened Merchant claims, several of which have been settled. With regard to the claim asserted by one Merchant, trial before the UK Competition Appeal Tribunal to determine the lawful amount, if any, the plaintiff may be entitled to recover is set for June 2022. Other plaintiffs, whose claims were effectively stayed pending the Supreme Court of the United Kingdom's judgment, are moving their claims forward, mostly before the UK Competition Appeal Tribunal. Other Litigation Canadian Merchant Litigation All defendants have settled with the plaintiffs. The appeals by Wal-Mart Canada and/or Home Depot of Canada Inc. of the decisions approving the Visa and Mastercard settlements have been rejected in all five provinces. Wal-Mart Canada and Home Depot of Canada Inc. sought leave to appeal the British Columbia, Quebec, Ontario and Saskatchewan Courts of Appeal decisions to the Supreme Court of Canada, and those applications were denied. Wal-Mart Canada and Home Depot of Canada Inc. chose not to appeal the Alberta Court of Appeal decision to the Supreme Court of Canada, and the Visa and Mastercard settlements are now final. EMV Chip Liability Shift On January 19, 2021, the U.S. Court of Appeals for the Second Circuit denied defendants’ request to appeal the district court’s decision granting plaintiffs’ motion for class certification. Australian Competition and Consumer Commission On March 9, 2021, the Australian Competition and Consumer Commission accepted an undertaking by Visa to resolve the investigation. The investigation is now closed. Euronet Litigation In the claim by Euronet 360 Finance Limited, Euronet Polska Spolka z.o.o. and Euronet Services spol. s.r.o., trial has been scheduled for a date on or after October 2, 2023. Plaid Inc. Acquisition On January 12, 2021, the case filed by the U.S. Department of Justice against Visa and Plaid was dismissed. German ATM Litigation In December 2020 and January 2021, six savings banks and cooperative banks filed claims in Germany against Visa Europe challenging Visa’s ATM rules prohibiting the charging of access fees on domestic cash withdrawals with a credit card as anti-competitive. No damages are currently sought. On December 24, 2020, 275 German savings banks initiated conciliation proceedings against Visa Europe, Visa Europe Services, LLC., and Visa Europe Services, Inc. asserting claims related to the same rules. Visa declined participation in these proceedings on March 22, 2021. On April 30, 2021, Visa filed defenses challenging the jurisdiction of the German courts to hear claims brought by certain banks. U.S. Department of Justice Civil Investigative Demand (2021) On March 26, 2021, the Antitrust Division of the U.S. Department of Justice (the “Division”) issued a Civil Investigative Demand (“CID”) to Visa seeking documents and information regarding a potential violation of Section 1 or 2 of the Sherman Act, 15 U.S.C. §§ 1, 2. The CID focuses on U.S. debit and competition with other payment methods and networks. Visa is cooperating with the Division in connection with the CID. On June 11, 2021, the Division issued a further CID seeking additional documents and information on the same subjects. Foreign Currency Exchange Rate Litigation On July 9, 2021, a class action complaint was filed against Visa in the U.S. District Court for the Northern District of California by several individuals on behalf of a nationwide class, and/or California, Washington, or Illinois subclasses, of cardholders who made a transaction in a foreign currency. The complaint alleges that Visa sets foreign exchange rates in violation of Visa’s rules and bank cardholder agreements, and asserts claims for unjust enrichment and restitution as well as violations of the California Unfair Competition Law, the Washington Consumer Protection Act, and the Illinois Consumer Fraud Act. Plaintiffs seek an injunction, damages, disgorgement, and attorneys’ fees among other relief.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Consolidation and basis of presentation	Consolidation and basis of presentation. The accompanying unaudited consolidated financial statements include the accounts of Visa and its consolidated entities and are presented in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The Company consolidates its majority-owned and controlled entities, including variable interest entities (“VIEs”) for which the Company is the primary beneficiary. The Company’s investments in VIEs have not been material to its unaudited consolidated financial statements as of and for the periods presented. All significant intercompany accounts and transactions are eliminated in consolidation. The accompanying unaudited consolidated financial statements are presented in accordance with the U.S. Securities and Exchange Commission (“SEC”) requirements for Quarterly Reports on Form 10-Q and, consequently, do not include all of the annual disclosures required by U.S. GAAP. Reference should be made to the Visa Annual Report on Form 10-K for the year ended September 30, 2020 for additional disclosures, including a summary of the Company’s significant accounting policies. In the opinion of management, the accompanying unaudited consolidated financial statements include all normal recurring adjustments necessary for a fair presentation of the Company’s financial position, results of operations and cash flows for the interim periods presented.
Use of estimates	Use of estimates. The preparation of the accompanying unaudited consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions about future events. These estimates and assumptions affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited consolidated financial statements and reported amounts of revenues and expenses during the reporting period. These estimates may change, as new events occur and additional information is obtained, and will be recognized in the unaudited consolidated financial statements in the period in which such changes occur. Future actual results could differ materially from these estimates. Coronavirus (“COVID-19”) has continued to create significant uncertainty in the global economy. There have been no comparable recent events that provide guidance as to the effect COVID-19 as a global pandemic may have, and, as a result, the ultimate impact of COVID-19 and the extent to which COVID-19 continues to impact the Company’s business, results of operations and financial condition will depend on future developments, which are highly uncertain and difficult to predict.
Recently adopted accounting pronouncements	Recently Adopted Accounting Pronouncements In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Board Update (“ASU”) 2016-13, which requires the measurement and recognition of expected credit losses for financial assets and certain other instruments held at amortized cost. The Company adopted the standard effective October 1, 2020 using the modified retrospective transition method with comparative periods continuing to be reported using the previous applicable guidance. The adoption did not have a material impact on the consolidated financial statements. In accordance with ASU 2016-13, the Company uses a forward-looking expected credit loss model for financial instruments measured at amortized cost. For available-for-sale debt securities, when credit loss indicators exist and a discounted cash flow approach results in a credit loss, the credit loss will be recorded through an allowance rather than through an other-than-temporary impairment. In addition to recording the fair value of its settlement indemnification liability, under the new standard, the Company estimates expected credit losses and recognizes an allowance for those credit losses related to its settlement indemnification obligations. In January 2017, the FASB issued ASU 2017-04, which simplifies the accounting for goodwill impairments by eliminating Step 2 from the goodwill impairment test. Under the amendments in ASU 2017-04, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of the reporting unit with its carrying amount, which is Step 1 of the goodwill impairment test. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value, not to exceed the total amount of goodwill allocated to that reporting unit. The Company adopted the standard effective October 1, 2020. The adoption had no impact on the consolidated financial statements.

Revenues (Tables)

Revenues (Tables)	9 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following tables disaggregate the Company’s net revenues by revenue category and by geography for the three and nine months ended June 30, 2021 and 2020: Three Months Ended Nine Months Ended 2021 2020 2021 2020 (in millions) Service revenues $ 2,828 $ 2,409 $ 8,350 $ 7,587 Data processing revenues 3,327 2,525 9,356 8,100 International transaction revenues 1,696 1,102 4,635 4,953 Other revenues 409 314 1,185 1,071 Client incentives (2,130) (1,513) (5,980) (4,966) Net revenues $ 6,130 $ 4,837 $ 17,546 $ 16,745 Three Months Ended Nine Months Ended 2021 2020 2021 2020 (in millions) U.S. $ 2,806 $ 2,380 $ 8,156 $ 7,747 International 3,324 2,457 9,390 8,998 Net revenues $ 6,130 $ 4,837 $ 17,546 $ 16,745

Cash, Cash Equivalents, Restr_2

Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents (Tables)	9 Months Ended
	Jun. 30, 2021
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Schedule of Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	The Company reconciles cash, cash equivalents, restricted cash and restricted cash equivalents reported in the consolidated balance sheets that aggregate to the beginning and ending balances shown in the consolidated statements of cash flows as follows: June 30, September 30, (in millions) Cash and cash equivalents $ 18,034 $ 16,289 Restricted cash and restricted cash equivalents: U.S. litigation escrow 894 901 Customer collateral 2,221 1,850 Prepaid expenses and other current assets 125 131 Cash, cash equivalents, restricted cash and restricted cash equivalents $ 21,274 $ 19,171

U.S. and Europe Retrospective_2

U.S. and Europe Retrospective Responsibility Plans (Tables)	9 Months Ended
	Jun. 30, 2021
Retrospective Responsibility Plan [Abstract]
Changes in the U.S. litigation escrow account	The following table sets forth the changes in the restricted cash equivalents—U.S. litigation escrow account: Nine Months Ended 2021 2020 (in millions) Balance at beginning of period $ 901 $ 1,205 Return of takedown payment to the litigation escrow account — 467 Payments to opt-out merchants (1) and interest earned on escrow funds (7) (524) Balance at end of period $ 894 $ 1,148 (1) These payments are associated with the Interchange Multidistrict Litigation. See Note 13—Legal Matters .
Changes in Preferred Stock and Right to Recover for Covered Losses	The following table sets forth the activities related to VE territory covered losses in preferred stock and “right to recover for covered losses” within stockholders’ equity during the nine months ended June 30, 2021: Preferred Stock Right to Recover for Covered Losses UK&I Europe (in millions) Balance as of September 30, 2020 $ 1,106 $ 1,543 $ (39) VE territory covered losses incurred (1) — — (38) Recovery through conversion rate adjustment (2) (35) (20) 53 Balance as of June 30, 2021 $ 1,071 $ 1,523 $ (24) (1) VE territory covered losses incurred reflect settlements with merchants and additional legal costs. See Note 13—Legal Matters . (2) Adjustment to right to recover for covered losses for the conversion rate adjustment differs from the actual recovered amount due to differences in foreign exchange rates between the time the losses were incurred and the subsequent recovery through the conversion rate adjustment.
Preferred Stock As-Converted Value and Book Value	The following table sets forth the as-converted value of the preferred stock available to recover VE territory covered losses compared to the book value of preferred stock recorded in stockholders’ equity within the Company’s consolidated balance sheets as of June 30, 2021 and September 30, 2020: June 30, 2021 September 30, 2020 As-converted Value of Preferred Stock (1),(2) Book Value of Preferred Stock (1) As-converted Value of Preferred Stock (1),(3) Book Value of Preferred Stock (1) (in millions) UK&I preferred stock $ 3,666 $ 1,071 $ 3,168 $ 1,106 Europe preferred stock 5,044 1,523 4,331 1,543 Total 8,710 2,594 7,499 2,649 Less: right to recover for covered losses (24) (24) (39) (39) Total recovery for covered losses available $ 8,686 $ 2,570 $ 7,460 $ 2,610 (1) Figures in the table may not recalculate exactly due to rounding. As-converted and book values are based on unrounded numbers. (2) As of June 30, 2021, the as-converted value of preferred stock is calculated as the product of: (a) 2 million and 3 million shares of the UK&I and Europe preferred stock outstanding, respectively; (b) 6.321 and 6.834, the class A common stock conversion rate applicable to the UK&I and Europe preferred stock, respectively; and (c) $233.82, Visa’s class A common stock closing stock price. (3) As of September 30, 2020, the as-converted value of preferred stock is calculated as the product of: (a) 2 million and 3 million shares of the UK&I and Europe preferred stock outstanding, respectively; (b) 6.387 and 6.861, the class A common stock conversion rate applicable to the UK&I and Europe preferred stock respectively; and (c) $199.97, Visa’s class A common stock closing stock price.

Fair Value Measurements and I_2

Fair Value Measurements and Investments (Tables)	9 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	Assets and Liabilities Measured at Fair Value on a Recurring Basis Fair Value Measurements Level 1 Level 2 June 30, September 30, June 30, September 30, (in millions) Assets Cash equivalents and restricted cash equivalents: Money market funds $ 14,830 $ 12,522 $ — $ — U.S. government-sponsored debt securities — — 600 1,469 U.S. Treasury securities 750 650 — — Investment securities: Marketable equity securities 550 148 — — U.S. government-sponsored debt securities — — 486 2,582 U.S. Treasury securities 1,271 1,253 — — Other current and non-current assets: Money market funds 3 — — — Derivative instruments — — 389 512 Total $ 17,404 $ 14,573 $ 1,475 $ 4,563 Liabilities Accrued compensation and benefits: Deferred compensation liability $ 168 $ 135 $ — $ — Accrued and other liabilities: Derivative instruments — — 216 181 Total $ 168 $ 135 $ 216 $ 181
Schedule of Non-Marketable Equity Securities	The following table summarizes the total carrying value of the Company’s non-marketable equity securities held as of June 30, 2021 including cumulative unrealized gains and losses: June 30, (in millions) Initial cost basis $ 857 Adjustments: Upward adjustments 446 Downward adjustments (including impairment) (13) Carrying amount, end of period $ 1,290 During the three and nine months ended June 30, 2021 and 2020, unrealized gains and losses included in the carrying value of the Company’s non-marketable equity securities still held as of June 30, 2021 and 2020 were as follows: Three Months Ended Nine Months Ended 2021 2020 2021 2020 (in millions) Upward adjustments $ 180 $ 56 $ 323 $ 65 Downward adjustments (including impairment) $ — $ (6) $ (2) $ (6)

Debt (Tables)

Debt (Tables)	9 Months Ended
	Jun. 30, 2021
Debt Disclosure [Abstract]
Schedule of Debt	The Company had outstanding debt as follows: June 30, September 30, Effective Interest Rate (1) (in millions, except percentages) 2.20% Senior Notes due December 2020 $ — $ 3,000 2.30 % 2.15% Senior Notes due September 2022 1,000 1,000 2.30 % 2.80% Senior Notes due December 2022 2,250 2,250 2.89 % 3.15% Senior Notes due December 2025 4,000 4,000 3.26 % 1.90% Senior Notes due April 2027 1,500 1,500 2.02 % 0.75% Senior Notes due August 2027 500 500 0.84 % 2.75% Senior Notes due September 2027 750 750 2.91 % 2.05% Senior Notes due April 2030 1,500 1,500 2.13 % 1.10% Senior Notes due February 2031 1,000 1,000 1.20 % 4.15% Senior Notes due December 2035 1,500 1,500 4.23 % 2.70% Senior Notes due April 2040 1,000 1,000 2.80 % 4.30% Senior Notes due December 2045 3,500 3,500 4.37 % 3.65% Senior Notes due September 2047 750 750 3.73 % 2.00% Senior Notes due August 2050 1,750 1,750 2.09 % Total debt 21,000 24,000 Unamortized discounts and debt issuance costs (165) (178) Hedge accounting fair value adjustments (2) 161 248 Total carrying value of debt $ 20,996 $ 24,070 Reported as: Current maturities of debt $ — $ 2,999 Long-term debt 20,996 21,071 Total carrying value of debt $ 20,996 $ 24,070 (1) Effective interest rates disclosed do not reflect hedge accounting adjustments.

Settlement Guarantee Manageme_2

Settlement Guarantee Management (Tables)	9 Months Ended
	Jun. 30, 2021
Settlement Guarantee Management [Abstract]
Schedule of Customer Collateral	The Company maintains and regularly reviews global settlement risk policies and procedures to manage settlement exposure, which may require clients to post collateral if certain credit standards are not met. At June 30, 2021 and September 30, 2020, the Company held the following collateral to manage settlement exposure: June 30, September 30, (in millions) Restricted cash and restricted cash equivalents $ 2,221 $ 1,850 Pledged securities at market value 253 228 Letters of credit 1,402 1,306 Guarantees 729 717 Total $ 4,605 $ 4,101

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	9 Months Ended
	Jun. 30, 2021
Stockholders' Equity Note [Abstract]
Schedule of Stock by Class	As-converted class A common stock. The number of shares of each series and class, and the number of shares of class A common stock on an as-converted basis were as follows: June 30, 2021 September 30, 2020 Shares Conversion Rate Into As-converted Class A Common Stock (1) Shares Conversion Rate Into As-converted Class A Common Stock (1) (in millions, except conversion rates) Series A preferred stock — (2) 100.0000 8 — (2) 100.0000 35 UK&I preferred stock 2 6.3210 16 2 6.3870 16 Europe preferred stock 3 6.8340 22 3 6.8610 22 Class A common stock (3) 1,689 — 1,689 1,683 — 1,683 Class B common stock 245 1.6228 (4) 398 245 1.6228 (4) 398 Class C common stock 10 4.0000 41 11 4.0000 43 Total 2,174 2,197 (1) Figures in the table may not recalculate exactly due to rounding. As-converted class A common stock is calculated based on unrounded numbers. (2) The number of shares outstanding was less than one million. (3) Class A common stock shares outstanding reflect repurchases that settled on or before June 30, 2021 and September 30, 2020, respectively. (4) The class B to class A common stock conversion rate is presented on a rounded basis. Conversion calculations for dividend payments are based on a conversion rate rounded to the tenth decimal.
Effect of VE Territory Covered Losses Recovery on the Company Repurchasing its Common Stock	The following table presents the reduction in as-converted UK&I and Europe preferred stock after the Company recovered VE territory covered losses through conversion rate adjustments in the nine months ended June 30, 2021 and 2020: Nine Months Ended Nine Months Ended UK&I Europe UK&I Europe (in millions, except per share data) Reduction in equivalent number of as-converted shares of class A common stock — (1) — (1) — (1) 1 Effective price per share (2) $ 220.84 $ 220.71 $ 180.00 $ 180.00 Recovery through conversion rate adjustment $ 35 $ 20 $ 72 $ 92 (1) The reduction in equivalent number of shares of class A common stock was less than one million shares. (2) Effective price per share for the quarter is calculated using the volume-weighted average price of the Company’s class A common stock over a pricing period in accordance with the Company’s current certificates of designations for its series B and C convertible participating preferred stock. Effective price per share is calculated using the weighted-average effective prices of the respective adjustments made during the year.
Share Repurchase Program Disclosure	Common stock repurchases. The following table presents share repurchases in the open market for the following periods: Three Months Ended Nine Months Ended 2021 2020 2021 2020 (in millions, except per share data) Shares repurchased in the open market (1) 10 6 27 37 Average repurchase price per share (2) $ 227.11 $ 177.86 $ 213.02 $ 179.91 Total cost (2) $ 2,200 $ 1,069 $ 5,709 $ 6,572 (1) Shares repurchased in the open market reflect repurchases that settled during the three and nine months ended June 30, 2021 and 2020, respectively. All shares repurchased in the open market have been retired and constitute authorized but unissued shares. (2) Figures in the table may not recalculate exactly due to rounding. Average repurchase price per share and total cost is calculated based on unrounded numbers.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Jun. 30, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table presents earnings per share for the three months ended June 30, 2021: Basic Earnings Per Share Diluted Earnings Per Share Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) (in millions, except per share data) Class A common stock $ 1,996 1,691 $ 1.18 $ 2,575 2,184 (3) $ 1.18 Class B common stock 470 245 $ 1.92 $ 470 245 $ 1.91 Class C common stock 49 10 $ 4.72 $ 49 10 $ 4.72 Participating securities (4) 60 Not presented Not presented $ 60 Not presented Not presented Net income $ 2,575 The following table presents earnings per share for the nine months ended June 30, 2021: Basic Earnings Per Share Diluted Earnings Per Share Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) (in millions, except per share data) Class A common stock $ 6,748 1,693 $ 3.99 $ 8,727 2,192 (3) $ 3.98 Class B common stock 1,588 245 $ 6.47 $ 1,586 245 $ 6.46 Class C common stock 169 11 $ 15.94 $ 169 11 $ 15.92 Participating securities (4) 222 Not presented Not presented $ 221 Not presented Not presented Net income $ 8,727 The following table presents earnings per share for the three months ended June 30, 2020: Basic Earnings Per Share Diluted Earnings Per Share Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) (in millions, except per share data) Class A common stock $ 1,814 1,690 $ 1.07 $ 2,373 2,214 (3) $ 1.07 Class B common stock 428 245 $ 1.74 $ 427 245 $ 1.74 Class C common stock 46 11 $ 4.29 $ 47 11 $ 4.29 Participating securities (4) 85 Not presented Not presented $ 85 Not presented Not presented Net income $ 2,373 The following table presents earnings per share for the nine months ended June 30, 2020: Basic Earnings Per Share Diluted Earnings Per Share Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) Income Allocation (A) (1) Weighted- Earnings per Share = (A)/(B) (2) (in millions, except per share data) Class A common stock $ 6,679 1,702 $ 3.92 $ 8,729 2,227 (3) $ 3.92 Class B common stock 1,564 245 $ 6.37 $ 1,561 245 $ 6.36 Class C common stock 172 11 $ 15.70 $ 172 11 $ 15.68 Participating securities (4) 314 Not presented Not presented $ 314 Not presented Not presented Net income $ 8,729 (1) Net income is allocated based on proportional ownership on an as-converted basis. The weighted-average number of shares of as-converted class B common stock used in the income allocation was 398 million for the three and nine months ended June 30, 2021 and 2020. The weighted-average number of shares of as-converted class C common stock used in the income allocation was 42 million for the three and nine months ended June 30, 2021 and 43 million and 44 million for the three and nine months ended June 30, 2020, respectively. The weighted-average number of shares of preferred stock included within participating securities was 9 million and 14 million of as-converted series A preferred stock for the three and nine months ended June 30, 2021, respectively, 16 million and 32 million of as-converted UK&I preferred stock for the three and nine months ended June 30, 2021 and 2020, respectively, and 22 million and 44 million of as-converted Europe preferred stock for the three and nine months ended June 30, 2021 and 2020, respectively. (2) Figures in the table may not recalculate exactly due to rounding. Earnings per share is calculated based on unrounded numbers. (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 common stock equivalents of 3 million for the three and nine months ended June 30, 2021 and 2020 because their effect would have been dilutive. The computation excludes common stock equivalents of less than 1 million for the three and nine months ended June 30, 2021 and 1 million for the three and nine months ended June 30, 2020, because their effect would have been anti-dilutive. (4) Participating securities include preferred stock outstanding and unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents, such as the Company’s series A preferred stock, UK&I and Europe preferred stock and restricted stock units. Participating securities’ income is allocated based on the weighted-average number of shares of as-converted stock.

Share-based Compensation (Table

Share-based Compensation (Tables)	9 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement, Noncash Expense [Abstract]
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	The Company granted the following equity awards to employees and non-employee directors under the 2007 Equity Incentive Compensation Plan, or the EIP, during the nine months ended June 30, 2021: Granted Weighted-Average Grant Date Fair Value Weighted-Average Exercise Price Non-qualified stock options 1,022,430 $ 39.51 $ 207.57 Restricted stock units 2,395,264 $ 208.05 Performance-based shares (1) 432,714 $ 229.81 (1) Represents the maximum number of performance-based shares which could be earned.

Legal Matters (Tables)

Legal Matters (Tables)	9 Months Ended
	Jun. 30, 2021
Legal Matters [Abstract]
Schedule of Loss Contingencies by Contingency	The following table summarizes the activity related to accrued litigation: Nine Months Ended 2021 2020 (in millions) Balance at beginning of period $ 914 $ 1,203 Provision for uncovered legal matters 5 7 Provision for covered legal matters 23 14 Reestablishment of prior accrual related to interchange multidistrict litigation — 467 Payments for legal matters (42) (535) Balance at end of period $ 900 $ 1,156 The following table summarizes the accrual activity related to U.S. covered litigation: Nine Months Ended 2021 2020 (in millions) Balance at beginning of period $ 888 $ 1,198 Reestablishment of prior accrual related to interchange multidistrict litigation — 467 Payments for U.S. covered litigation (7) (529) Balance at end of period $ 881 $ 1,136 The following table summarizes the accrual activity related to VE territory covered litigation: Nine Months Ended 2021 2020 (in millions) Balance at beginning of period $ 21 $ 5 Provision for VE territory covered litigation 23 14 Payments for VE territory covered litigation (29) (5) Balance at end of period $ 15 $ 14

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details)	Jun. 30, 2021country
Accounting Policies [Abstract]
Number of countries in which Visa operates (more than)	200

Acquisitions (Details)

Acquisitions (Details) £ in Millions, € in Billions	Jul. 22, 2021GBP (£)	Jun. 24, 2021EUR (€)
Tink
Business Acquisition [Line Items]
Pending acqusition | €		€ 1.8
The Currency Cloud Group Limited | Subsequent Event
Business Acquisition [Line Items]
Pending acqusition | £	£ 700

Revenues - Schedule of Net Reve

Revenues - Schedule of Net Revenues (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Net revenues	$ 6,130	$ 4,837	$ 17,546	$ 16,745
U.S.
Disaggregation of Revenue [Line Items]
Net revenues	2,806	2,380	8,156	7,747
International
Disaggregation of Revenue [Line Items]
Net revenues	3,324	2,457	9,390	8,998
Service revenues
Disaggregation of Revenue [Line Items]
Net revenues	2,828	2,409	8,350	7,587
Data processing revenues
Disaggregation of Revenue [Line Items]
Net revenues	3,327	2,525	9,356	8,100
International transaction revenues
Disaggregation of Revenue [Line Items]
Net revenues	1,696	1,102	4,635	4,953
Other revenues
Disaggregation of Revenue [Line Items]
Net revenues	409	314	1,185	1,071
Client incentives
Disaggregation of Revenue [Line Items]
Net revenues	$ (2,130)	$ (1,513)	$ (5,980)	$ (4,966)

Revenues - Additional Informati

Revenues - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2021	Sep. 30, 2020
Accrued Liabilities
Disaggregation of Revenue [Line Items]
Deferred revenue	$ 696	$ 533

Cash, Cash Equivalents, Restr_3

Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents (Details) - USD ($) $ in Millions	Jun. 30, 2021	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 18,034	$ 16,289
Cash, cash equivalents, restricted cash and restricted cash equivalents	21,274	19,171	$ 16,934	$ 10,832
U.S. litigation escrow
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash and restricted cash equivalents	894	901
Customer collateral
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash and restricted cash equivalents	2,221	1,850
Prepaid expenses and other current assets
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash and restricted cash equivalents	$ 125	$ 131

U.S. and Europe Retrospective_3

U.S. and Europe Retrospective Responsibility Plans - Changes in the U.S. Litigation Escrow Account (Detail) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Escrow Account [Roll Forward]
Balance at beginning of period	$ 901	$ 1,205
Return of takedown payment to the litigation escrow account	0	467
Balance at end of period	894	1,148
Interest Income | Opt-out Merchants
Escrow Account [Roll Forward]
Payments to opt-out merchants and interest earned on escrow funds	$ (7)	$ (524)

U.S. and Europe Retrospective_4

U.S. and Europe Retrospective Responsibility Plans - Additional Details (Details) € in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)	Jun. 30, 2021EUR (€)	Jun. 30, 2020USD ($)
Class of Stock [Line Items]
VE covered loss, maximum amount of loss to allow adjustment of conversion rate during six-month period | €				€ 20
Recovery through conversion rate adjustment	$ (2)	$ 5	$ (2)		$ 5
Preferred Stock
Class of Stock [Line Items]
Recovery through conversion rate adjustment	$ (40)	$ (164)	$ (55)		$ (164)

U.S. and Europe Retrospective_5

U.S. and Europe Retrospective Responsibility Plans - Changes in Preferred Stock and Right to Recover Covered Losses (Details) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021USD ($)$ / sharesshares	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)$ / sharesshares	Jun. 30, 2020USD ($)	Sep. 30, 2020USD ($)$ / sharesshares
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 37,696	$ 34,585	$ 36,210	$ 34,684
VE territory covered losses incurred	(21)	(9)	(38)	(22)
Recovery through conversion rate adjustment	(2)	5	(2)	5
Ending balance	37,790	35,524	37,790	35,524
As-converted Value of Preferred Stock	8,710		8,710		$ 7,499
Book Value of Preferred Stock, Total	2,594		2,594		2,649
Less: right to recover for covered losses	(24)		(24)		(39)
Preferred Stock, As-Converted Value, Total recovery for covered losses available	8,686		8,686		7,460
Book Value of Preferred of Stock, Total recovery for covered losses available	$ 2,570		$ 2,570		$ 2,610
Share price (in dollars per share) | $ / shares	$ 233.82		$ 233.82		$ 199.97
Preferred Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 3,347	5,462	$ 5,086	5,462
Recovery through conversion rate adjustment	(40)	(164)	(55)	(164)
Ending balance	3,132	5,298	3,132	5,298
Right to Recover for Covered Losses
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(41)	(184)	(39)	(171)
VE territory covered losses incurred	(21)	(9)	(38)	(22)
Recovery through conversion rate adjustment	38	169	53	169
Ending balance	(24)	$ (24)	(24)	(24)
UK&I preferred stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Recovery through conversion rate adjustment			35	72
As-converted Value of Preferred Stock	3,666		3,666		$ 3,168
Book Value of Preferred Stock	$ 1,071		$ 1,071		$ 1,106
Preferred stock, shares outstanding (in shares) | shares	2		2		2
Preferred stock, conversion rate	6.3210		6.3210		6.387
UK&I preferred stock | Preferred Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			$ 1,106
VE territory covered losses incurred			0
Recovery through conversion rate adjustment			(35)
Ending balance	$ 1,071		1,071
Europe preferred stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Recovery through conversion rate adjustment			20	$ 92
As-converted Value of Preferred Stock	5,044		5,044		$ 4,331
Book Value of Preferred Stock	$ 1,523		$ 1,523		$ 1,543
Preferred stock, shares outstanding (in shares) | shares	3		3		3
Preferred stock, conversion rate	6.834		6.834		6.861
Europe preferred stock | Preferred Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			$ 1,543
VE territory covered losses incurred			0
Recovery through conversion rate adjustment			(20)
Ending balance	$ 1,523		$ 1,523

Fair Value Measurements and I_3

Fair Value Measurements and Investments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2021	Sep. 30, 2020
Assets
Investment securities	$ 1,800	$ 3,800
Level 1 | Recurring
Assets
Total	17,404	14,573
Liabilities
Deferred compensation liability	168	135
Derivative instruments	0	0
Total	168	135
Level 1 | Money market funds | Recurring
Assets
Cash equivalents and restricted cash equivalents	14,830	12,522
Other current and non-current assets	3	0
Level 1 | Marketable equity securities | Recurring
Assets
Investment securities	550	148
Level 1 | U.S. government-sponsored debt securities | Recurring
Assets
Cash equivalents and restricted cash equivalents	0	0
Investment securities	0	0
Level 1 | U.S. Treasury securities | Recurring
Assets
Cash equivalents and restricted cash equivalents	750	650
Investment securities	1,271	1,253
Level 1 | Derivative instruments | Recurring
Assets
Other current and non-current assets	0	0
Level 2 | Recurring
Assets
Total	1,475	4,563
Liabilities
Deferred compensation liability	0	0
Derivative instruments	216	181
Total	216	181
Level 2 | Money market funds | Recurring
Assets
Cash equivalents and restricted cash equivalents	0	0
Other current and non-current assets	0	0
Level 2 | Marketable equity securities | Recurring
Assets
Investment securities	0	0
Level 2 | U.S. government-sponsored debt securities | Recurring
Assets
Cash equivalents and restricted cash equivalents	600	1,469
Investment securities	486	2,582
Level 2 | U.S. Treasury securities | Recurring
Assets
Cash equivalents and restricted cash equivalents	0	0
Investment securities	0	0
Level 2 | Derivative instruments | Recurring
Assets
Other current and non-current assets	$ 389	$ 512

Fair Value Measurements and I_4

Fair Value Measurements and Investments - Additional Information (Detail) - USD ($)	Feb. 01, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Sep. 30, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
U.S. securities		$ 1,800,000,000		$ 1,800,000,000		$ 3,800,000,000
Impairment of indefinite-lived intangible assets and goodwill	$ 0
Carrying value of long-term debt		20,996,000,000		20,996,000,000		24,070,000,000
Unrealized gain on equity securities held as of the end of the period		$ 434,000,000	$ 68,000,000	$ 610,000,000	$ 59,000,000
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, stated maturities		1 year		1 year
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investment securities, stated maturities		5 years		5 years
Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of long-term debt		$ 21,000,000,000		$ 21,000,000,000		24,100,000,000
Estimated Fair Value | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value of long-term debt		$ 22,900,000,000		$ 22,900,000,000		$ 26,600,000,000

Fair Value Measurements and I_5

Fair Value Measurements and Investments - Schedule of Non-Marketable Equity Securities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Initial cost basis	$ 857		$ 857
Upward adjustments	446		446
Downward adjustments (including impairment)	(13)		(13)
Carrying amount, end of period	1,290		1,290
Upward adjustments	180	$ 56	323	$ 65
Downward adjustments	$ 0	$ (6)	$ (2)	$ (6)

Debt - Summary of Debt (Details

Debt - Summary of Debt (Details) - USD ($) $ in Millions	Jun. 30, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Unamortized discounts and debt issuance costs	$ (165)	$ (178)
Hedge accounting fair value adjustments	161	248
Total carrying value of debt	20,996	24,070
Current maturities of debt	0	2,999
Long-term debt	20,996	21,071
Senior Notes
Debt Instrument [Line Items]
Total debt	21,000	24,000
Total carrying value of debt	21,000	24,100
Senior Notes | 2.20% Senior Notes due December 2020
Debt Instrument [Line Items]
Total debt	$ 0	3,000
Effective interest rate (percent)	2.30%
Stated interest rate (percent)	2.20%
Senior Notes | 2.15% Senior Notes due September 2022
Debt Instrument [Line Items]
Total debt	$ 1,000	1,000
Effective interest rate (percent)	2.30%
Stated interest rate (percent)	2.15%
Senior Notes | 2.80% Senior Notes due December 2022
Debt Instrument [Line Items]
Total debt	$ 2,250	2,250
Effective interest rate (percent)	2.89%
Stated interest rate (percent)	2.80%
Senior Notes | 3.15% Senior Notes due December 2025
Debt Instrument [Line Items]
Total debt	$ 4,000	4,000
Effective interest rate (percent)	3.26%
Stated interest rate (percent)	3.15%
Senior Notes | 1.90% Senior Notes due April 2027
Debt Instrument [Line Items]
Total debt	$ 1,500	1,500
Effective interest rate (percent)	2.02%
Stated interest rate (percent)	1.90%
Senior Notes | 0.75% Senior Notes due August 2027
Debt Instrument [Line Items]
Total debt	$ 500	500
Effective interest rate (percent)	0.84%
Stated interest rate (percent)	0.75%
Senior Notes | 2.75% Senior Notes due September 2027
Debt Instrument [Line Items]
Total debt	$ 750	750
Effective interest rate (percent)	2.91%
Stated interest rate (percent)	2.75%
Senior Notes | 2.05% Senior Notes due April 2030
Debt Instrument [Line Items]
Total debt	$ 1,500	1,500
Effective interest rate (percent)	2.13%
Stated interest rate (percent)	2.05%
Senior Notes | 1.10% Senior Notes due February 2031
Debt Instrument [Line Items]
Total debt	$ 1,000	1,000
Effective interest rate (percent)	1.20%
Stated interest rate (percent)	1.10%
Senior Notes | 4.15% Senior Notes due December 2035
Debt Instrument [Line Items]
Total debt	$ 1,500	1,500
Effective interest rate (percent)	4.23%
Stated interest rate (percent)	4.15%
Senior Notes | 2.70% Senior Notes due April 2040
Debt Instrument [Line Items]
Total debt	$ 1,000	1,000
Effective interest rate (percent)	2.80%
Stated interest rate (percent)	2.70%
Senior Notes | 4.30% Senior Notes due December 2045
Debt Instrument [Line Items]
Total debt	$ 3,500	3,500
Effective interest rate (percent)	4.37%
Stated interest rate (percent)	4.30%
Senior Notes | 3.65% Senior Notes due September 2047
Debt Instrument [Line Items]
Total debt	$ 750	750
Effective interest rate (percent)	3.73%
Stated interest rate (percent)	3.65%
Senior Notes | 2.00% Senior Notes due August 2050
Debt Instrument [Line Items]
Total debt	$ 1,750	$ 1,750
Effective interest rate (percent)	2.09%
Stated interest rate (percent)	2.00%

Debt - Additional Information (

Debt - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Debt Instrument [Line Items]
Repayments senior notes	$ 3,000	$ 0
Senior Notes | December 14, 2020 Senior Note
Debt Instrument [Line Items]
Repayments senior notes	$ 3,000

Settlement Guarantee Manageme_3

Settlement Guarantee Management - Additional Information (Details) $ in Billions	9 Months Ended
	Jun. 30, 2021USD ($)
Settlement Guarantee Management [Abstract]
Maximum settlement exposure	$ 104.1
Average daily settlement exposure	$ 63.9

Settlement Guarantee Manageme_4

Settlement Guarantee Management - Collateral (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Sep. 30, 2020
Settlement Guarantee Management [Abstract]
Restricted cash and restricted cash equivalents	$ 2,221	$ 1,850
Pledged securities at market value	253	228
Letters of credit	1,402	1,306
Guarantees	729	717
Total	$ 4,605	$ 4,101

Stockholders' Equity - Number o

Stockholders' Equity - Number of Shares of Class A Common Shares Outstanding on an As-Converted Basis (Detail) shares in Millions	Jun. 30, 2021shares	Sep. 30, 2020shares
Schedule of Common Stock as Converted [Line Items]
As-converted Class A Common Stock (in shares)	2,174	2,197
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	100
As-converted Class A Common Stock (in shares)	8	35
UK&I 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	6.3210	6.387
As-converted Class A Common Stock (in shares)	16	16
Europe 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	6.834	6.861
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)	1,689	1,683
As-converted Class A Common Stock (in shares)	1,689	1,683
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	1.6228	1.6228
As-converted Class A Common Stock (in shares)	398	398
Class C common stock
Schedule of Common Stock as Converted [Line Items]
Common stock, shares outstanding (in shares)	10	11
Common stock, conversion rate into Class A Common Stock	4	4
As-converted Class A Common Stock (in shares)	41	43

Stockholders' Equity - Effect o

Stockholders' Equity - Effect of VE Territory Covered Losses Through Conversion Rate Adjustments (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Conversion of Stock [Line Items]
Recovery through conversion rate adjustment	$ (2)	$ 5	$ (2)	$ 5
UK&I preferred stock
Conversion of Stock [Line Items]
Reduction in equivalent number of as-converted shares of class A common stock (in shares)			0	0
Effective price per share (in dollars per share)			$ 220.84	$ 180
Recovery through conversion rate adjustment			$ 35	$ 72
Europe preferred stock
Conversion of Stock [Line Items]
Reduction in equivalent number of as-converted shares of class A common stock (in shares)			0	1
Effective price per share (in dollars per share)			$ 220.71	$ 180
Recovery through conversion rate adjustment			$ 20	$ 92

Stockholders' Equity - Share Re

Stockholders' Equity - Share Repurchases in the Open Market (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Equity, Class of Treasury Stock [Line Items]
Total cost	$ 2,200	$ 1,069	$ 5,709	$ 6,572
Class A common stock
Equity, Class of Treasury Stock [Line Items]
Shares repurchased in the open market (in shares)	10	6	27	37
Average repurchase price per share (in dollars per share)	$ 227.11	$ 177.86	$ 213.02	$ 179.91
Total cost	$ 2,200	$ 1,069	$ 5,709	$ 6,572

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jul. 23, 2021	Jan. 31, 2021	Jan. 31, 2020
Stockholders Equity Note [Line Items]
Share repurchase program						$ 8,000	$ 9,500
Share repurchase programs authorized	$ 7,800		$ 7,800
Cash dividends declared and paid, at a quarterly amount per Class A share	$ 698	$ 663	$ 2,102	$ 2,002
Subsequent Event | Class A common stock
Stockholders Equity Note [Line Items]
Quarterly cash dividend (in dollars per share)					$ 0.32

Earnings Per Share - Basic and

Earnings Per Share - Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Net income	$ 2,575	$ 2,373	$ 8,727	$ 8,729
Class A common stock
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Income Allocation - Basic	$ 1,996	$ 1,814	$ 6,748	$ 6,679
Weighted- Average Shares Outstanding - Basic (in shares)	1,691	1,690	1,693	1,702
Earnings per Share - Basic (in dollars per share)	$ 1.18	$ 1.07	$ 3.99	$ 3.92
Income Allocation - Diluted	$ 2,575	$ 2,373	$ 8,727	$ 8,729
Weighted- Average Shares Outstanding - Diluted (in shares)	2,184	2,214	2,192	2,227
Earnings per Share - Diluted (in dollars per share)	$ 1.18	$ 1.07	$ 3.98	$ 3.92
Class B common stock
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Income Allocation - Basic	$ 470	$ 428	$ 1,588	$ 1,564
Weighted- Average Shares Outstanding - Basic (in shares)	245	245	245	245
Earnings per Share - Basic (in dollars per share)	$ 1.92	$ 1.74	$ 6.47	$ 6.37
Income Allocation - Diluted	$ 470	$ 427	$ 1,586	$ 1,561
Weighted- Average Shares Outstanding - Diluted (in shares)	245	245	245	245
Earnings per Share - Diluted (in dollars per share)	$ 1.91	$ 1.74	$ 6.46	$ 6.36
Class C common stock
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Income Allocation - Basic	$ 49	$ 46	$ 169	$ 172
Weighted- Average Shares Outstanding - Basic (in shares)	10	11	11	11
Earnings per Share - Basic (in dollars per share)	$ 4.72	$ 4.29	$ 15.94	$ 15.70
Income Allocation - Diluted	$ 49	$ 47	$ 169	$ 172
Weighted- Average Shares Outstanding - Diluted (in shares)	10	11	11	11
Earnings per Share - Diluted (in dollars per share)	$ 4.72	$ 4.29	$ 15.92	$ 15.68
Participating securities
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Income Allocation - Basic	$ 60	$ 85	$ 222	$ 314
Income Allocation - Diluted	$ 60	$ 85	$ 221	$ 314

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - shares	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Common stock equivalents included in the computation of diluted shares outstanding (in shares)	3,000,000	3,000,000	3,000,000	3,000,000
Antidilutive securities excluded from computation of earnings per share (less than for 2021) (in shares)	1,000,000	1,000,000	1,000,000	1,000,000
Class B common stock
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Weighted-average as-converted common stock used in income allocation (in shares)	398,000,000	398,000,000	398,000,000	398,000,000
Class C common stock
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Weighted-average as-converted common stock used in income allocation (in shares)	42,000,000	43,000,000	42,000,000	44,000,000
Series A preferred stock
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Weighted-average as-converted common stock used in income allocation (in shares)	9,000,000		14,000,000
UK&I preferred stock
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Weighted-average as-converted common stock used in income allocation (in shares)	16,000,000	32,000,000	16,000,000	32,000,000
Europe preferred stock
Schedule of Earnings Per Share, Basic and Diluted, by Common Class [Line Items]
Weighted-average as-converted common stock used in income allocation (in shares)	22,000,000	44,000,000	22,000,000	44,000,000

Share-based Compensation - Awar

Share-based Compensation - Awards Granted to Company Employees and Non-employee Directors Under the 2007 Equity Incentive Compensation Plan (Detail)	9 Months Ended
	Jun. 30, 2021$ / sharesshares
Non-qualified stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) | shares	1,022,430
Weighted-Average Grant Date Fair Value (in dollars per share)	$ 39.51
Weighted-Average Exercise Price (in dollars per share)	$ 207.57
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) | shares	2,395,264
Weighted-Average Grant Date Fair Value (in dollars per share)	$ 208.05
Performance-based shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) | shares	432,714
Weighted-Average Grant Date Fair Value (in dollars per share)	$ 229.81

Share-based Compensation - Addi

Share-based Compensation - Additional Information (Details) - 2007 Plan - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jan. 26, 2021	Jan. 25, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation cost	$ 153	$ 102	$ 417	$ 306
Shares authorized under EIP (in shares)					198,000,000	236,000,000

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Effective income tax rate reconciliation, percent	41.00%	19.00%	26.00%	19.00%
Adjustment related to the remeasurement of UK deferred tax liabilities	$ 1,000
Recognized tax benefit	51
Recognized tax benefit			$ 147
Increase in unrecognized tax benefits, gross	80
Increase (decrease) in unrecognized tax benefits, net	39		(137)
Decrease in unrecognized tax benefits, gross			37
Increase in accrued interest related to uncertain tax positions	$ 0	$ 18	$ 0	$ 56

Legal Matters - Schedule of Acc

Legal Matters - Schedule of Accrued Litigation for Both Covered and Non-Covered Litigation (Detail) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Loss Contingency Accrual [Roll Forward]
Balance at beginning of period	$ 914	$ 1,203
Balance at end of period	900	1,156
Uncovered Litigation
Loss Contingency Accrual [Roll Forward]
Provision for legal matters	5	7
Covered Litigation
Loss Contingency Accrual [Roll Forward]
Provision for legal matters	23	14
Reestablishment of prior accrual related to interchange multidistrict litigation	0	467
Payments for legal matters	(42)	(535)
U.S. Covered Litigation
Loss Contingency Accrual [Roll Forward]
Balance at beginning of period	888	1,198
Reestablishment of prior accrual related to interchange multidistrict litigation	0	467
Payments for legal matters	(7)	(529)
Balance at end of period	881	1,136
VE Territory Covered Litigation
Loss Contingency Accrual [Roll Forward]
Balance at beginning of period	21	5
Provision for legal matters	23	14
Payments for legal matters	(29)	(5)
Balance at end of period	$ 15	$ 14

Legal Matters - Additional Info

Legal Matters - Additional Information (Details)	Dec. 24, 2020plaintiff	Jun. 16, 2021state	Jan. 31, 2021plaintiff	Jul. 29, 2021merchant
Loss Contingencies [Line Items]
Number of states | state		25
Interchange Multidistrict Litigation | Subsequent Event
Loss Contingencies [Line Items]
Settlement percentage				40.00%
U.K. Merchant Litigation | Subsequent Event
Loss Contingencies [Line Items]
Number of plaintiffs				700
Number of claims settled				100
Merchants with outstanding claims				550
U.K. Merchant Litigation | Threatened Litigation | Subsequent Event
Loss Contingencies [Line Items]
Number of plaintiffs				30
German ATM Litigation
Loss Contingencies [Line Items]
Number of plaintiffs | plaintiff	275		6