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Note 3 - Stock-Based Compensation - Summary of Stock-based Compensation by Income Statement Line Item (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Nov. 29, 2015
Nov. 30, 2014
Nov. 29, 2015
Nov. 30, 2014
Employee Stock Option [Member]        
Stock-based Compensation Expense $ 360 $ 122 $ 690 $ 255
Restricted Stock Units (RSUs) [Member]        
Stock-based Compensation Expense 540 228 1,007 493
Research and Development Expense [Member]        
Stock-based Compensation Expense 60 8 120 20
Selling, General and Administrative Expenses [Member]        
Stock-based Compensation Expense 840 342 1,577 728
Stock-based Compensation Expense $ 900 $ 350 $ 1,697 $ 748