Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2011
Consolidated Statements of Income
REVENUES	$ 44,287	$ 42,680	$ 39,304
OPERATING EXPENSES:
Salaries and employee benefits	16,570	16,099	15,276
Purchased transportation	7,272	6,335	5,674
Rentals and landing fees	2,521	2,487	2,462
Depreciation and amortization	2,386	2,113	1,973
Fuel	4,746	4,956	4,151
Maintenance and repairs	1,909	1,980	1,979
Business realignment, impairment and other charges	660	134	89
Other	5,672	5,390	5,322
OPERATING EXPENSES	41,736	39,494	36,926
OPERATING INCOME	2,551	3,186	2,378
OTHER INCOME (EXPENSE):
Interest expense	(82)	(52)	(86)
Interest income	21	13	9
Other, net	(35)	(6)	(36)
OTHER INCOME (EXPENSE)	(96)	(45)	(113)
INCOME BEFORE INCOME TAXES	2,455	3,141	2,265
PROVISION FOR INCOME TAXES	894	1,109	813
NET INCOME	$ 1,561	$ 2,032	$ 1,452
EARNINGS PER COMMON SHARE
Basic	$ 4.95	$ 6.44	$ 4.61
Diluted	$ 4.91	$ 6.41	$ 4.57