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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
$ in Millions
 6 Months Ended
Oct. 27, 2017
Oct. 28, 2016
Cash flows from operating activities:    
Net income $ 311 $ 173
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 102 117
Stock-based compensation 87 103
Deferred income taxes 44 28
Other items, net (5) (15)
Changes in assets and liabilities, net of acquisitions of businesses:    
Accounts receivable 149 264
Inventories 55 1
Other operating assets 38 49
Accounts payable 34 (13)
Accrued expenses (68) (138)
Deferred revenue and financed unearned services revenue (183) (179)
Other operating liabilities 0 (4)
Net cash provided by operating activities 564 386
Cash flows from investing activities:    
Purchases of investments (609) (795)
Maturities, sales and collections of investments 657 985
Purchases of property and equipment (65) (92)
Acquisitions of businesses, net of cash acquired (75) 0
Other investing activities, net 5 (1)
Net cash provided by (used in) investing activities (87) 97
Cash flows from financing activities:    
Proceeds from issuance of common stock under employee stock award plans 57 61
Payments for taxes related to net share settlement of stock awards (60) (36)
Repurchase of common stock (300) (292)
Proceeds from issuance of commercial paper notes, net 218 0
Issuance of long-term debt, net 795 0
Repayment of short-term loan 0 (850)
Dividends paid (108) (105)
Other financing activities, net (1) (3)
Net cash provided by (used in) financing activities 601 (1,225)
Effect of exchange rate changes on cash and cash equivalents 13 (13)
Net increase (decrease) in cash and cash equivalents 1,091 (755)
Cash and cash equivalents:    
Beginning of period 2,444 2,868
End of period $ 3,535 $ 2,113