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Consolidated Statements of Cash Flows - USD ($)
$ in Millions
 3 Months Ended
Jul. 28, 2017
Jul. 29, 2016
Operating Activities:    
Net income $ 1,009 $ 929
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 636 737
Amortization of debt premium, discount, and issuance costs (10) 7
Acquisition-related items (1) (5)
Provision for doubtful accounts 10 9
Deferred income taxes 58 32
Stock-based compensation 92 79
Other, net 6 (85)
Change in operating assets and liabilities, net of acquisitions:    
Accounts receivable, net (88) 196
Inventories, net (164) (101)
Accounts payable and accrued liabilities (392) (298)
Other operating assets and liabilities (419) 50
Net cash provided by operating activities 737 1,550
Investing Activities:    
Acquisitions, net of cash acquired 0 (12)
Additions to property, plant, and equipment (278) (330)
Purchases of investments (615) (1,044)
Sales and maturities of investments 971 1,104
Other investing activities, net 5 (2)
Net cash provided by (used in) investing activities 83 (284)
Financing Activities:    
Acquisition-related contingent consideration (3) (11)
Change in current debt obligations, net 569 926
Issuance of long-term debt 18 33
Payments on long-term debt (8) (17)
Dividends to shareholders (625) (599)
Issuance of ordinary shares 143 214
Repurchase of ordinary shares (1,233) (1,763)
Other financing activities (2) 57
Net cash used in financing activities (1,141) (1,160)
Effect of exchange rate changes on cash and cash equivalents 45 78
Net change in cash and cash equivalents (276) 184
Cash and cash equivalents at beginning of period 4,967 2,876
Cash and cash equivalents at end of period 4,691 3,060
Cash paid for:    
Income taxes 417 115
Interest $ 68 $ 68