Condensed Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Nov. 30, 2011	Nov. 30, 2010	Nov. 30, 2011	Nov. 30, 2010
Condensed Consolidated Statements of Income
REVENUES	$ 10,587	$ 9,632	$ 21,108	$ 19,089
OPERATING EXPENSES:
Salaries and employee benefits	3,982	3,779	7,986	7,582
Purchased transportation	1,576	1,390	3,094	2,717
Rentals and landing fees	623	628	1,243	1,229
Depreciation and amortization	518	502	1,027	981
Fuel	1,200	938	2,444	1,825
Maintenance and repairs	511	473	1,062	990
Impairment and other charges		67		67
Other	1,397	1,386	2,735	2,601
OPERATING EXPENSES	9,807	9,163	19,591	17,992
OPERATING INCOME	780	469	1,517	1,097
OTHER INCOME (EXPENSE):
Interest, net	(7)	(23)	(18)	(41)
Other, net	4	(9)	2	(16)
OTHER INCOME (EXPENSE)	(3)	(32)	(16)	(57)
INCOME BEFORE INCOME TAXES	777	437	1,501	1,040
PROVISION FOR INCOME TAXES	280	154	540	377
NET INCOME	$ 497	$ 283	$ 961	$ 663
EARNINGS PER COMMON SHARE:
Basic	$ 1.57	$ 0.90	$ 3.04	$ 2.11
Diluted	$ 1.57	$ 0.89	$ 3.02	$ 2.09
DIVIDENDS DECLARED PER COMMON SHARE	$ 0.13	$ 0.12	$ 0.39	$ 0.36