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CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (Unaudited) - USD ($)
$ in Millions
3 Months Ended
Jan. 31, 2019
Jan. 31, 2018
Cash flows from operating activities    
Net income (loss) $ 504 $ (320)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:    
Depreciation and amortization 54 51
Share-based compensation 24 31
Deferred taxes (281) (6)
Excess and obsolete inventory related charges 4 5
Other non-cash expense, net 3 1
Changes in assets and liabilities:    
Accounts receivable (22) (5)
Inventory (12) (34)
Accounts payable (16) (3)
Employee compensation and benefits (71) (62)
Change in assets and liabilities due to Tax Act 0 533
Other assets and liabilities 26 24
Net cash provided by operating activities 213 215
Cash flows from Investing activities:    
Investments in property, plant and equipment (39) (60)
Payment to acquire fair value investment (2) (1)
Payments in exchange for convertible note (1) 0
Acquisitions of businesses and intangible assets, net of cash acquired (248) (6)
Net cash used in investing activities (290) (67)
Cash flows from financing activities:    
Issuance of common stock under employee stock plans 22 25
Payment of taxes related to net share settlement of equity awards (13) (28)
Payment of dividends (52) (48)
Purchase of non-controlling interest (4) 0
Proceeds from revolving credit facility 0 274
Repayment of debt and revolving credit facility 0 (139)
Treasury stock repurchases (75) (47)
Net cash provided by (used) in financing activities (122) 37
Effect of exchange rate movements 9 25
Net increase (decrease) in cash, cash equivalents and restricted cash (190) 210
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 2,064 2,896
Supplemental cash flow information:    
Income tax paid, net 21 32
Interest payments 25 29
Non-cash changes in investments in property, plant and equipment increase (decrease) $ (13) $ (12)