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Short-Term Borrowings and Credit Lines - Credit Facility (Details) - Revolving Credit Facility - USD ($)
3 Months Ended
Aug. 31, 2015
Aug. 28, 2015
Nov. 01, 2011
Short-term Debt [Line Items]      
Maximum borrowing capacity   $ 2,000,000,000 $ 1,000,000,000
Extension period after maturity 1 year    
Facility fee as a percent of total commitment 0.045%    
Amount outstanding under committed credit facility $ 0    
London Interbank Offered Rate (LIBOR)      
Short-term Debt [Line Items]      
Basis spread on variable rate 0.455%