Short-Term Borrowings and Credit Lines - Notes Payable to Banks and Interest Bearing Accounts Payable to Sojitz Corporation of America (Detail) (USD $) In Millions, unless otherwise specified	May 31, 2014		May 31, 2013
Notes payable:
TOTAL NOTES PAYABLE	$ 167		$ 98
Interest-Bearing Accounts Payable:
Sojitz America	60		55
Sojitz America - interest rate	0.94%		0.99%
UNITED STATES
Notes payable:
TOTAL NOTES PAYABLE	0		0
UNITED STATES | Notes Payable
Notes payable:
Notes payable - interest rate	0.00%	[1]	0.00%	[1]
Non-U.S. operations
Notes payable:
TOTAL NOTES PAYABLE	$ 167		$ 98
Non-U.S. operations | Notes Payable
Notes payable:
Notes payable - interest rate	10.04%	[1]	4.94%	[1]

[1] Weighted average interest rate includes non-interest bearing overdrafts.