Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	12 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2011
Consolidated Statements of Comprehensive Income (Loss)
NET INCOME	$ 1,561	$ 2,032	$ 1,452
Other comprehensive income (loss):
Foreign currency translation adjustment, net of tax benefit of $12 and $26 in 2013 and 2012 and tax expense of $27 in 2011	41	(95)	125
Amortization of unrealized pension actuarial gains/losses and other, net of tax expense of $677 in 2013 and tax benefit of $1,369 and $141 in 2012 and 2011	1,092	(2,308)	(235)
Other comprehensive income (loss)	1,133	(2,403)	(110)
Comprehensive income (loss)	$ 2,694	$ (371)	$ 1,342