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Long Term Debt - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
0 Months Ended
May 30, 2013
May 31, 2014
May 31, 2013
Long-term Debt Disclosure [Abstract]      
Purchase of properties $ 85    
Maturity of long-term debt in 2015   7  
Maturity of long-term debt in 2016   108  
Maturity of long-term debt in 2017   45  
Maturity of long-term debt in 2018   25  
Maturity of long-term debt in 2019   7  
Fair value of long term debt   $ 1,154 $ 1,219