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CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (Unaudited) - USD ($)
$ in Millions
6 Months Ended
Apr. 30, 2019
Apr. 30, 2018
Cash flows from operating activities    
Net income (loss) $ 686 $ (115)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:    
Depreciation and amortization 107 101
Share-based compensation 40 43
Deferred taxes (272) (13)
Excess and obsolete inventory related charges 7 17
Other non-cash expense, net 2 2
Changes in assets and liabilities:    
Accounts receivable (17) (21)
Inventory (21) (34)
Accounts payable (8) (14)
Employee compensation and benefits (13) (7)
Change in assets and liabilities due to Tax Act 0 533
Other assets and liabilities (46) 26
Net cash provided by operating activities 465 518
Cash flows from Investing activities:    
Investments in property, plant and equipment (78) (108)
Payment to acquire fair value investment (18) (1)
Payments in exchange for convertible note (2) (2)
Acquisitions of businesses and intangible assets, net of cash acquired (248) (7)
Net cash used in investing activities (346) (118)
Cash flows from financing activities:    
Issuance of common stock under employee stock plans 33 36
Payment of taxes related to net share settlement of equity awards (14) (29)
Payment of dividends (104) (96)
Purchase of non-controlling interest (4) 0
Proceeds from revolving credit facility 0 356
Repayment of debt and revolving credit facility 0 (251)
Treasury stock repurchases (125) (93)
Net cash used in financing activities (214) (77)
Effect of exchange rate movements 2 9
Net increase (decrease) in cash, cash equivalents and restricted cash (93) 332
Cash, cash equivalents and restricted cash at the beginning of the period 2,254 2,686
Cash, cash equivalents and restricted cash at the end of the period 2,161 3,018
Supplemental cash flow information:    
Income tax paid, net 104 48
Interest payments 36 43
Non-cash changes in investments in property, plant and equipment increase (decrease) $ (23) $ (21)