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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 9 Months Ended
--- | ---
Jun. 27, 2021 | Jun. 28, 2020
Operating Activities: |  |
Net income | $ 6,245 | $ 2,238
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation and amortization expense | 1,157 | 1,054
Income tax provision less than income tax payments | (358) | (459)
Share-based compensation expense | 1,238 | 899
Net gains on marketable securities and other investments | (487) | (269)
Impairment losses on other investments | 24 | 349
Other items, net | (73) | (108)
Changes in assets and liabilities: |  |
Accounts receivable, net | 1,052 | 622
Inventories | (509) | (938)
Other assets | 39 | (139)
Trade accounts payable | 449 | 745
Payroll, benefits and other liabilities | 805 | 277
Unearned revenues | (123) | (198)
Net cash provided by operating activities | 9,459 | 4,073
Investing Activities: |  |
Capital expenditures | (1,458) | (1,059)
Purchases of debt and equity marketable securities | (5,458) | (4,818)
Proceeds from sales and maturities of debt and equity marketable securities | 4,482 | 1,011
Acquisitions and other investments, net of cash acquired | (1,284) | (159)
Proceeds from other investments | 234 | 58
Other items, net | 78 | 42
Net cash used by investing activities | (3,406) | (4,925)
Financing Activities: |  |
Proceeds from short-term debt | 2,185 | 2,286
Repayment of short-term debt | (2,185) | (2,285)
Proceeds from long-term debt | 0 | 1,989
Repayment of long-term debt | 0 | (2,000)
Proceeds from issuance of common stock | 174 | 176
Repurchases and retirements of common stock | (2,595) | (2,450)
Dividends paid | (2,240) | (2,148)
Payments of tax withholdings related to vesting of share-based awards | (710) | (329)
Other items, net | (25) | (110)
Net cash used by financing activities | (5,396) | (4,871)
Effect of exchange rate changes on cash and cash equivalents | 35 | 4
Net increase (decrease) in total cash and cash equivalents | 692 | (5,719)
Total cash and cash equivalents at beginning of period | 6,707 | 11,839
Total cash and cash equivalents at end of period | $ 7,399 | $ 6,120

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