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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Jun. 30, 2018 | Jul. 01, 2017
Statement of Cash Flows [Abstract] |  |
Cash and cash equivalents, beginning of the period | $ 20,289 | $ 20,484
Operating activities: |  |
Net income | 45,406 | 37,637
Adjustments to reconcile net income to cash generated by operating activities: |  |
Depreciation and amortization | 8,149 | 7,673
Share-based compensation expense | 3,995 | 3,666
Deferred income tax expense/(benefit) | (33,109) | 4,764
Other | (410) | (142)
Changes in operating assets and liabilities: |  |
Accounts receivable, net | 3,756 | 3,381
Inventories | (1,114) | (1,014)
Vendor non-trade receivables | 5,536 | 3,312
Other current and non-current assets | (65) | (3,229)
Accounts payable | (11,139) | (5,212)
Deferred revenue | (103) | (418)
Other current and non-current liabilities | 37,009 | (1,942)
Cash generated by operating activities | 57,911 | 48,476
Investing activities: |  |
Purchases of marketable securities | (56,133) | (123,781)
Proceeds from maturities of marketable securities | 46,290 | 19,347
Proceeds from sales of marketable securities | 41,614 | 76,747
Payments for acquisition of property, plant and equipment | (10,272) | (8,586)
Payments made in connection with business acquisitions, net | (431) | (248)
Purchases of non-marketable securities | (1,788) | (213)
Proceeds from non-marketable securities | 310 | 126
Other | (523) | 104
Cash generated by/(used in) investing activities | 19,067 | (36,504)
Financing activities: |  |
Proceeds from issuance of common stock | 328 | 274
Payments for taxes related to net share settlement of equity awards | (2,267) | (1,646)
Payments for dividends and dividend equivalents | (10,182) | (9,499)
Repurchases of common stock | (53,634) | (25,105)
Proceeds from issuance of term debt, net | 6,969 | 21,725
Repayments of term debt | (6,500) | (3,500)
Change in commercial paper, net | (10) | 3,866
Cash used in financing activities | (65,296) | (13,885)
Increase/(Decrease) in cash and cash equivalents | 11,682 | (1,913)
Cash and cash equivalents, end of the period | 31,971 | 18,571
Supplemental cash flow disclosure: |  |
Cash paid for income taxes, net | 8,819 | 9,752
Cash paid for interest | $ 2,120 | $ 1,456

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- Definition The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26853-111562 + Details
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- Definition The net cash inflow or cash outflow from issuing (borrowing) and repaying commercial paper. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition The cash inflow associated with the sale and maturity (principal being due) of other investments, prepayment and call (request of early payment) of other investments not otherwise defined in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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