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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Operating Activities |  |
Net income | $ 6,356 | $ 5,954
Adjustments to reconcile net income to net cash provided by (used in) operating activities: |  |
Client incentives (Note 3) | 3,453 | 2,934
Share-based compensation (Note 12) | 215 | 211
Depreciation and amortization of property, equipment, technology and intangible assets | 374 | 319
Deferred income taxes | (37) | 256
VE territory covered losses incurred (Note 5) | (13) | (162)
Other | (84) | (106)
Change in operating assets and liabilities: |  |
Settlement receivable | 1,642 | (23)
Accounts receivable | 38 | (203)
Client incentives | (4,323) | (3,142)
Other assets | (496) | (245)
Accounts payable | 14 | (48)
Settlement payable | (2,165) | (38)
Accrued and other liabilities | 303 | 170
Accrued litigation (Note 14) | 65 | (519)
Net cash provided by (used in) operating activities | 5,342 | 5,358
Investing Activities |  |
Purchases of property, equipment and technology | (407) | (313)
Investment securities: |  |
Purchases | (499) | (1,806)
Proceeds from maturities and sales | 3,420 | 2,038
Acquisitions, net of cash acquired | (77) | 0
Purchases of / contributions to other investments | (30) | (236)
Proceeds / distributions from other investments | 2 | 10
Other investing activities | 32 | (89)
Net cash provided by (used in) investing activities | 2,441 | (396)
Financing Activities |  |
Repurchase of class A common stock (Note 10) | (5,503) | (4,331)
Dividends paid (Note 10) | (1,339) | (1,141)
Proceeds from issuance of commercial paper (Note 8) | 1,001 | 0
Cash proceeds from issuance of common stock under employee equity plans | 109 | 89
Restricted stock and performance-based shares settled in cash for taxes | (155) | (103)
Net cash provided by (used in) financing activities | (5,887) | (5,486)
Effect of exchange rate changes on cash and cash equivalents | 88 | (171)
Increase (decrease) in cash, cash equivalents, restricted cash and restricted cash equivalents | 1,984 | (695)
Cash, cash equivalents, restricted cash and restricted cash equivalents at beginning of period (Note 4) | 10,832 | 10,977
Cash, cash equivalents, restricted cash and restricted cash equivalents at end of period (Note 4) | 12,816 | 10,282
Supplemental Disclosure |  |
Income taxes paid, net of refunds | 1,691 | 1,381
Interest payments on debt | 269 | 269
Accruals related to purchases of property, equipment and technology | $ 42 | $ 51

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