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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 29, 2018 | Dec. 30, 2017
Statement of Cash Flows [Abstract] |  |
Cash and cash equivalents, beginning balances | $ 25,913 | $ 20,289
Operating activities: |  |
Net income | 19,965 | 20,065
Adjustments to reconcile net income to cash generated by operating activities: |  |
Depreciation and amortization | 3,395 | 2,745
Share-based compensation expense | 1,559 | 1,296
Deferred income tax expense/(benefit) | 53 | (33,737)
Other | (54) | (11)
Changes in operating assets and liabilities: |  |
Accounts receivable, net | 5,130 | (5,570)
Inventories | (1,076) | 434
Vendor non-trade receivables | 6,905 | (9,660)
Other current and non-current assets | (886) | (197)
Accounts payable | (8,501) | 12,602
Deferred revenue | (370) | 569
Other current and non-current liabilities | 570 | 39,757
Cash generated by operating activities | 26,690 | 28,293
Investing activities: |  |
Purchases of marketable securities | (7,077) | (41,272)
Proceeds from maturities of marketable securities | 7,203 | 14,048
Proceeds from sales of marketable securities | 9,723 | 16,801
Payments for acquisition of property, plant and equipment | (3,355) | (2,810)
Payments made in connection with business acquisitions, net | (167) | (173)
Purchases of non-marketable securities | (427) | (141)
Other | (56) | (43)
Cash generated by/(used in) investing activities | 5,844 | (13,590)
Financing activities: |  |
Payments for taxes related to net share settlement of equity awards | (1,318) | (1,038)
Payments for dividends and dividend equivalents | (3,568) | (3,339)
Repurchases of common stock | (8,796) | (10,095)
Proceeds from issuance of term debt, net | 0 | 6,969
Change in commercial paper, net | 6 | 2
Cash used in financing activities | (13,676) | (7,501)
Increase/(Decrease) in cash and cash equivalents | 18,858 | 7,202
Cash and cash equivalents, ending balances | 44,771 | 27,491
Supplemental cash flow disclosure: |  |
Cash paid for income taxes, net | 4,916 | 3,551
Cash paid for interest | $ 836 | $ 623

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