Condensed Consolidated Statements of Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2013	Nov. 30, 2012
Condensed Consolidated Statements of Income
REVENUES	$ 6,546	$ 6,607	$ 12,892	$ 13,003
OPERATING EXPENSES:
Salaries and employee benefits	2,387	2,409	4,747	4,806
Purchased transportation	446	432	876	808
Rentals and landing fees	413	412	827	821
Depreciation and amortization	370	333	736	653
Fuel	986	1,074	1,942	2,060
Maintenance and repairs	307	347	613	718
Intercompany charges, net	505	528	994	1,057
Other	810	844	1,605	1,652
OPERATING EXPENSES	6,224	6,379	12,340	12,575
OPERATING INCOME	322	228	552	428
OTHER INCOME (EXPENSE):
Interest, net	5	8	12	20
Other, net	(22)	(21)	(43)	(38)
OTHER INCOME (EXPENSE)	(17)	(13)	(31)	(18)
INCOME BEFORE INCOME TAXES	305	215	521	410
PROVISION FOR INCOME TAXES	107	72	177	141
NET INCOME	$ 198	$ 143	$ 344	$ 269