CONSOLIDATED STATEMENTS OF CASH FLOWS $ in Millions, € in Billions	12 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)		Sep. 30, 2015 USD ($)
Operating Activities
Net income	$ 6,699	$ 5,991	[1]	$ 6,328
Adjustments to reconcile net income to net cash provided by operating activities:
Client incentives	4,565	3,409		2,861
Fair value adjustment for the Visa Europe put option	0	(255)		110
Share-based compensation (Note 15)	235	221		187
Excess tax benefit for share-based compensation	0	(63)		(84)
Depreciation and amortization of property, equipment, technology and intangible assets	556	502	[1]	494
Deferred income taxes	1,700	(764)		195
Right to recover for covered losses recorded in equity (Note 3)	(209)	(9)		0
Charitable contribution of Visa Inc. shares (Note 13 and Note 18)	192	0		0
Other	50	64		24
Change in operating assets and liabilities:
Settlement receivable	94	391		378
Accounts receivable	(54)	(65)		(19)
Client incentives	(4,628)	(3,508)		(2,970)
Other assets	(252)	(315)		(41)
Accounts payable	(30)	43		(13)
Settlement payable	(176)	(302)		(552)
Accrued and other liabilities	465	277		118
Accrued litigation (Note 19)	1	(43)		(432)
Net cash provided by operating activities	9,208	5,574		6,584
Investing Activities
Purchases of property, equipment, technology and intangible assets	(707)	(523)		(414)
Proceeds from sales of property, equipment and technology	12	0		10
Investment securities, available-for-sale:
Purchases	(3,238)	(10,426)		(2,850)
Proceeds from maturities and sales	5,012	9,119		1,925
Acquisitions, net of $2.8 billion cash received from Visa Europe (Note 2)	(302)	(9,082)		(93)
Purchases of / contributions to other investments	(46)	(10)		(25)
Proceeds / distributions from other investments	4	6		12
Net cash provided by (used in) investing activities	735	(10,916)		(1,435)
Financing Activities
Dividends paid (Note 13)	(1,579)	(1,350)		(1,177)
Proceeds from issuance of senior notes (Note 8)	2,488	15,971		0
Debt issuance costs (Note 8)	(15)	(98)		0
Payments from U.S. litigation escrow account—U.S. retrospective responsibility plan (Note 3 and Note 19)	0	45		426
Cash proceeds from issuance of common stock under employee equity plans	149	95		82
Restricted stock and performance-based shares settled in cash for taxes	(76)	(92)		(108)
Excess tax benefit for share-based compensation	0	63		84
Net cash (used in) provided by financing activities	(5,924)	7,477		(3,603)
Effect of exchange rate changes on cash and cash equivalents	236	(34)		1
Increase in cash and cash equivalents	4,255	2,101		1,547
Cash and cash equivalents at beginning of year	5,619	3,518		1,971
Cash and cash equivalents at end of year	9,874	5,619		3,518
Supplemental Disclosure
Series B and C convertible participating preferred stock issued in Visa Europe acquisition (Note 3)	0	5,717		0
Deferred purchase consideration recorded for Visa Europe acquisition (Note 2)	0	1,236		0
Income taxes paid, net of refunds	3,038	2,842		2,486
Interest payments on debt	489	244		0
Accruals related to purchases of property, equipment, technology and intangible assets	50	42		81
Class A common stock
Financing Activities
Repurchase of common stock	(6,891)	(6,987)		(2,910)
Class C common stock
Financing Activities
Repurchase of common stock	$ 0	$ (170)		$ 0

[1] See Note 2—Visa Europe.