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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 28, 2019 | Sep. 29, 2018 | Sep. 30, 2017
Statement of Cash Flows [Abstract] |  |  |
Cash, cash equivalents and restricted cash, beginning balances | $ 25,913 | $ 20,289 | $ 20,484
Operating activities: |  |  |
Net income | 55,256 | 59,531 | 48,351
Adjustments to reconcile net income to cash generated by operating activities: |  |  |
Depreciation and amortization | 12,547 | 10,903 | 10,157
Share-based compensation expense | 6,068 | 5,340 | 4,840
Deferred income tax expense/(benefit) | (340) | (32,590) | 5,966
Other | (652) | (444) | (166)
Changes in operating assets and liabilities: |  |  |
Accounts receivable, net | 245 | (5,322) | (2,093)
Inventories | (289) | 828 | (2,723)
Vendor non-trade receivables | 2,931 | (8,010) | (4,254)
Other current and non-current assets | 873 | (423) | (5,318)
Accounts payable | (1,923) | 9,175 | 8,966
Deferred revenue | (625) | (3) | (593)
Other current and non-current liabilities | (4,700) | 38,449 | 1,092
Cash generated by operating activities | 69,391 | 77,434 | 64,225
Investing activities: |  |  |
Purchases of marketable securities | (39,630) | (71,356) | (159,486)
Proceeds from maturities of marketable securities | 40,102 | 55,881 | 31,775
Proceeds from sales of marketable securities | 56,988 | 47,838 | 94,564
Payments for acquisition of property, plant and equipment | (10,495) | (13,313) | (12,451)
Payments made in connection with business acquisitions, net | (624) | (721) | (329)
Purchases of non-marketable securities | (1,001) | (1,871) | (521)
Proceeds from non-marketable securities | 1,634 | 353 | 126
Other | (1,078) | (745) | (124)
Cash generated by/(used in) investing activities | 45,896 | 16,066 | (46,446)
Financing activities: |  |  |
Proceeds from issuance of common stock | 781 | 669 | 555
Payments for taxes related to net share settlement of equity awards | (2,817) | (2,527) | (1,874)
Payments for dividends and dividend equivalents | 14,119 | 13,712 | 12,769
Repurchases of common stock | (66,897) | (72,738) | (32,900)
Proceeds from issuance of term debt, net | 6,963 | 6,969 | 28,662
Repayments of term debt | (8,805) | (6,500) | (3,500)
Proceeds from/(Repayments of) commercial paper, net | (5,977) | (37) | 3,852
Other | (105) | 0 | 0
Cash used in financing activities | (90,976) | (87,876) | (17,974)
Increase/(Decrease) in cash, cash equivalents and restricted cash | 24,311 | 5,624 | (195)
Cash, cash equivalents and restricted cash, ending balances | 50,224 | 25,913 | 20,289
Supplemental cash flow disclosure: |  |  |
Cash paid for income taxes, net | 15,263 | 10,417 | 11,591
Cash paid for interest | $ 3,423 | $ 3,022 | $ 2,092

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash inflow from the additional capital contribution to the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118954083&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3151-108585 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + 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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3098-108585 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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